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MICOM KAVR - dulieutramptc3

1. Logic Inputs Control Outputs Ladder Name Display Name Menu Cell Ladder Name Display Name Menu Cell CBAUX INP CB Auxswitch 0B01 DEADTIME DT in Prog 0201 INST INP Inst 0802 RECLTIME Rel in Prog 0202 Y Y MAINPR INP Main Protn 0 03 LOCKOUT Lockout 0203 i Y ENERGY INP Spring Charg 0B04 MNTALARM CTL Maint Alarm 10204 Y Y Y MANCL INP Manual CB CI 0805 MNTLOCKT MaintLockout 0205 NONARFLT INP Non AR protn 0B06 INSTBLOC Block InsPr 2060 Y Y Y BLOCK INP Block AR 0807 EXCESSFF Exe Fit Frq 0207 Y Y RESETLKT INP ResetLockout 0B08 OUTSERV CLT OutofService 0208 Y Y RESETIND INP Reset Indicn 0B09 CBFAILCL CB Failclose 0209 Y Y Y RESETMCT INP Reset M Cntr 0 0 CLT CldLd Pickup 020A Y Y Y Y Y NOHSAR INP Omit 1st Sht OBOB ARIP CLT ArinProgress 0208 Y v Y SEF INP Sensitive EF ARINHIB CLT ManCI AR Inh 020 IRSW INP Re 1 0B0C uu Y Y emsw Insrv SEFINSBL CLT Bik SEF Inst 020D Y Y Y Y RSW OUT INP Remsw Outsrv 10800 ARCOK CLT A R Success 020E Y SEFINST INP Inst SEF OBOF v v SEF INP Sensitive EF 108010 User Inputs Ladder Name Display Name Menu Cell Y SWIN USR Switch 0
2. Page 54 106 KAVR 100 FNCT 22 PAGE 19 CHECKSYN DTCOMP SYNCHECK X S _ 6 6 7 R 23 SYNCH 17 7 R4 R6 FNCT 24 28 18 7 R5 1 R4 FNCT 25 28 LLDB 19 P17 R6 1D R5 FNCT 26 FNCT 30 pipp 14 1E R6 MANCL FNCT 31 MCLPREP input 4 1F INST SEFINS CLOSECB CCWINDOW RTIME PAGE 20 e eie e CHI input 1 input 14 P9 Ri P7 Ri 7 9 14 CBCLOSED RECLTIME o 551 P9 R4 ARISM OUTSRV RL11 P4 RI OUTSERV T 687 CBFAILCL PAGE 21 aes css CBFAILCL M MNTALARA P2 1 10 R5 CBFAILCL RESETLO MALRESET P21 R1 P11 R6 P21 R3 M COUNT MARESET MALRESET gt M AL userin 4 MNTALARM T cs3 ALRESET MAINTALM RL4 P21 R3 P1268ENa Figure 15 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 Service Manual KAVR 100 R8507D Page 55 106
3. FUNCTION LINK SETTINGS LINK NUMBER 9 8 7 6 5 4 3 2 1 0 SYS Fm Links 6000100060601 css Fn Links 111 Scheme Fn Lnks 1 Q1 111 Scheme Fn Lnks 21 01 01 1111 1 01111 010 0 0 TIMER SETTINGS Dead Time 10 Seconds SprCh Window 5 Seconds Dead Time 2 60 Seconds Manel AR Inh 5 Seconds Dead Time 3 180 Seconds TripfailTime 1 Second Dead Time 4 180 Seconds Exc Frq 1000 Seconds Close Pulse 1 Second Autoreset 300 Seconds Reclaim Time 180 Seconds C Ld Pickup 600 Seconds SynCh Window 5 Seconds Linev Memory 2 Seconds PUT MASKS RELAY MASKS OPTO NUMBER 7161543210 RELAY NUMBER 7161514131210 INP AuxSwitch 00000011 RLY A R Prag 0 0 0 0 0 0 0 1 P Inst Protn RLY Close Sig 0 0 1010 01 0111 0 P Main Protn 0 10 010 01 11 0 0 RLY AR Available Spring Charg 1 010 RLY Block InstPr Manual CB Cl 0 0 0 1l0 O0 O 0 RLY Maint Alarm 010 0 1 0 01 101 0 INP Non AR Protn 010 1 0 0 0 0 0 RLY MaintLockout 00100000 INP Block AR 011000000 RLY Exc Frq 011 0 01010 010 P ResetLockout 1 0 01010 1010 0 RLY CB Failclose Reset Indicn RLY C Ld Pickup P Reset M Cntr olololololololo RLY A R Lockout olololololilolo P Omit ist Sht 0 0 010 0 10 0 0 RLY Mancl AR Inh P RemSw 0 0
4. userin 6 RESETLO P13 R3 P10 R P1316ENa Figure 23 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 Service Manual R8507D KAVR 100 Page 63 106 EXFLTFRQ PAGE 13 T EXCESSFF P13 R2 MCRESET PROTCNT EFF EXFLTFRQ o RL6 11 R2 P12 R4 FNCT 12 ClobeRst EXCESSFF e o 56 ARISM FNCT 20 MNTLOCKT LORESET COUNT oo ee RESE PA R1 14 IP12 R3 userin 2 RESMCNT 1 sa 1 7 RESETMCT ul 1 input 8 TRFALAR PAGE 14 PROTOP TRIPFAIL TFAL EFFRS HUS a SETELK R3 P6 R1 C B 1 TRFALARM RESETLO LOCKOUTM T ME NS 2 204 deg Jr T P2 R1 P14 R1 P10 R6 P10 R1 EFFCOUNT RESE 1 DPU 17 ARISM SETTINGS B 11 P4 R1 RESETS B OUTPUTS B ENCT 6 ARINPROG C B 1 CBOPNMEM PAGE 15 COLD LOAD 08 P5 R4 P2 RI PICKUP CBOPNMEM C B 1 COLDPKUP P15 R1 P2 4 cso ARINPROG NOHSAR 5 e o 0 0 P5 R4 input 9 P5 R2 EXTRACNT seocu SEQCNT i i P15 R4 INHCHSYN PHASE He ANGLE input 12 P1317ENa Figure 24 Scheme logic diagram KAV
5. Vdc Service Manual R8507D KAVR 100 Page 97 106 8 4 Relay settings Function link settings Function link number E B A 9 8 7 6 5 4 3 2 1 0 SYS Fn Links 1 00000000 000000 CSS Fn Links 2 Scheme Fn Lnks 1 3 Scheme Fn Lnks 2 3 Notes 1 System data column Check synch settings column Logic functions column Input mask settings Opto nput number INP CB AuxSwitch INP IProt A Phase INP Prot B Phase INP Prot C Phase INP Spring Charge INP Manual CB Cl INP Incr M Count INP Block AR INP Trip 2 3Ph INP Holdoff INP Select 1P AR INP Select 3P AR INP ResetLockout INP Reset M Cntr INP Inh CheckSyn variant 02 only Relay mask settings Relay number 7 6 5 4 3 2 1 0 RLY in Prog RLY CB Close Sig RLY PSB Inhibit RLY PSB Enable 85070 98 106 RLY AR Lockout RLY Inhibit Z1Ex RLY Enable Z1Ex 10301 only or RLY ChCyn Failed 10302 only RLY 1PhAR InProg RLY DEF P1Dis OK RLY Maint Alarm RLY MaintLockout RLY CB Trip 3Ph RLY Allow 1PTrip RLY MC SysCh OK RLY 3Ph AR Only RLY AR Off System data column settings SYS Description SYS Plant Ref SYS Frequency SYS Comms Level SYS Rly Address Check synch
6. AREVA Type KAVR 100 Multi Shot Auto Reclose nd Check Synchronism Relay Service Manual R8507D HANDLING OF ELECTRONIC EQUIPMENT person s normal movements can easily generate electrostatic potentials of several thousand volts Discharge of these voltages into semiconductor devices when handling circuits can cause serious damage which often may not be immediately apparent but the reliability of the circuit will have been reduced The electronic circuits of AREVA T amp D products are immune to the relevant levels of electrostatic discharge when housed in their cases Do not expose them to the risk of damage by withdrawing modules unnecessarily Each module incorporates the highest practicable protection for its semiconductor devices However if it becomes necessary to withdraw a module the following precautions should be taken to preserve the high reliability and long life for which the equipment has been designed and manvfactured 1 Before removing a module ensure that you are a same electrostatic potential as the equipment by touching the case 2 Handle the module by its front plate frame or edges of the printed circuit board Avoid touching the electronic components printed circuit track or connectors 3 not pass the module to any person without first ensuring that you are both at the same electrostatic potential Shaking hands achieves equipotential 4 Place the module on an antistatic surface or
7. The master station will then detect that a new relay has been added to the network and automatically allocate the next available address on the bus to which that relay is connected and communications will then be fully established Setting input masks and relay masks To change a mask setting it is necessary first to select the SYS Password cell and enter the correct password as described in Section 5 2 1 then move to the required mask cell and press either or to put the relay into a setting change mode A cursor will then flash on the bottom line at bit position 7 Press the F key to step along the row of bits one at a time changing bits as required For each bit to be changed press to change it to 1 or to change it to 0 Follow the instructions in Section 5 2 to exit from the setting change Resetting counter registers Move to the required cell in the RESET COUNTERS column The display shows on the top line the counter register display name and on the bottom line the current contents of that register Press either or to put the relay into a setting change mode A cursor will then flash on the bottom line at bit position F Press The word RESET will appear on the bottom line to the right of the current counter contents Follow the instructions in Section 5 2 to exit from the reset procedure If you confirm the reset by pressing when the display shows Are You Sure YES NO
8. enable dead line live bus voltage detection enable live line dead bus voltage detection enable dead line dead bus voltage detection enable undervoltage monitor to block operation of the phase angle and system angle measurements set undervoltage element output to be on for undervoltage condition set undervoltage element output to be off for undervoltage condition enable differential voltage monitor to block operation of the phase angle and system angle measurements set differential voltage element output to be on for differential voltage condition set differential voltage element output to be off for differential voltage condition Ratio of both VTs PWP Angle must be less than setting for check synchronism to be allowed Rate of change of angle must be less than setting for check synchronism to be allowed Angle must be less than phase angle setting for longer than this setting for check synchronism to be allowed Angle must be greater than setting to detect a system split condition Minimum time for which system split detector output will remain on Angle must be less than setting for system synchronism to be allowed Rate of change of angle must be less than setting for system synchronism to be allowed Angle must be less than system angle setting for longer than this setting for system synchronism to be allowed R8507D Page 36 le 5 1 10 5 1 11 Service Manual 106 KAVR 100 070B CSS V
9. restrictive limits may be applied to each counter See the scheme documentation for details 7 3 2 Check synchronism settings Undervoltage detector Voltage setting range 22 to 132V rms Voltage setting step 0 5V Operate 5 of the set value Reset lt 105 of operation Differential voltage detector Voltage setting range 0 5 to 22V rms Service Manual KAVR 100 Voltage setting step Operate Reset Phase angle measurement Setting range Setting step Operates at Resets at Slip frequency Setting range Setting step Blocks at Slip timer Setting range Setting step System split Setting range Setting step Operates at Resets at Split timer Setting range Setting step System angle measurement Setting range Setting step Operates at Resets at System slip frequency Setting range Setting step Blocks at System timer Setting range Setting step Live voltage Setting range R8507D Page 71 106 0 5V 5 of the set value gt 97 of setting 5 to 90 1 setting 0 3 operate value 0 3 0 005 to 2 000Hz 0 001Hz setting 10mHz 0 1 to 99 seconds 0 1 seconds 90 to 175 1 setting 0 3 operate value 0 3 0 1 to 99 seconds 0 1 seconds 5 to 90 1 setting 0 3 operate value 0 3 0 005 to 2 000Hz 0 001Hz setting 10mHz 0 1 to 99 seconds 0 1 seconds Dead voltage setting to 132V R8507D Service Manual Page 72 106 KAVR 100 S
10. to F correspond to FNCT 16 to 31 In the following lists the default settings applied in the factory are identified by D Logic FNCT number 0 Scheme Fn Links 1 bit no 0 Display Name CBAUX 52a INS ON SPRCHG SYNCH TEST IN6 ON LCKOUT INI CB TR INI CB OPN C LD P U MC AR INH TIM RES LCK Effect in scheme logic 0 logic correct for normally closed 52b CB aux contact 1 logic set for normally open 52a CB aux contact D 0 logic correct for CB spring charge contact open when spring charged gas OK 1 logic correct for CB spring charge contact closed when spring charged gas OK D 0 logic correct for normal service D 1 special setting for factory testing synch check logic 0 logic correct for normally closed external contact which opens to drive AR to lockout 1 logic correct for normally open external contact which closes to drive AR to lockout D 0 ARinitiation by protection operation D 1 AR initiation by any CB trip without reference to protection 0 AR initiation only if CB is closed up to instant of protection operation D 1 AR initiation by protection operation without reference to CB position cold load pickup logic disabled D 1 cold load pickup logic enabled 0 AR initiation enabled immediately atter CB manual close 1 AR initiation inhibited for AR Inh tim
11. 8 5 Opto input checks 8 6 Output relay checks 8 7 Synchronism check elements 8 7 1 Phase angle check instantaneous operation 8 7 2 Phase angle check delay on operation 8 7 3 Phase angle check undervoltage blocking 8 7 4 Phase angle check differential voltage blocking 8 7 5 System angle check instantaneous operation 8 7 6 System angle check delay on operation 8 7 7 System angle check undervoltage blocking 8 7 8 System angle check differential voltage blocking 8 8 Voltage monitor elements 8 8 1 Dead line live bus monitor 8 8 2 Live line dead bus monitor 8 8 3 Dead line dead bus monitor 8 9 Final settings and scheme test 9 PROBLEM SOLVING 9 1 Password lost or not accepted 9 2 Check synchronism settings 9 2 1 Cells not visible 9 2 2 Undervoltage feature does not block 9 2 3 Differential voltage feature does not block R8507D 77 77 77 78 78 78 79 79 79 79 79 79 80 80 80 81 81 81 82 82 83 83 83 83 84 84 84 85 85 85 85 86 86 87 87 87 87 87 87 R8507D Service Manual KAVR 100 9 2 4 Undervoltage feature output has incorrect sense 87 9 2 5 Differential voltage feature output has incorrect sense 87 9 2 6 Function links cannot be changed 88 9 2 7 Timer and counter settings cannot be changed 88 9 2 8 Counters cannot be reset 88 9 3 Alarms 88 9 3 1 Watchdog alarm 88 9 3 2 Unconfigured or uncalibrated alarm 88 9 3 3 Setting error alarm 88 9 3 4 N
12. Alarms Scheme Alarms Scheme alarms are generated by various events in scheme logic Each alarm comprises one of the Alarm LEDs being lit and an LCD message When any scheme alarm is active bit 6 of the SYS Alarms word in the SYSTEM DATA column is set to 1 Messages associated with currently active alarms overwrite the selected relay default LCD display and are also displayed under menu column heading SCHEME ALARMS When more than one alarm or any latching alarm see below is active the messages can be scrolled by short presses of the F key The relay can be arranged to automatically scroll to the next message every five seconds see under MENU SYSTEM Menu contents Logic functions 06 LOG Rotation Scheme alarms are in two groups Status and Latching with different reset modes Status alarms red or amber LED are active while the initiating scheme logic conditions are active and reset when the initiating conditions become inactive Service Manual R8507D KAVR 100 Page 15 106 Status alarms on the KAVR100 are LCD message amp LED Amber Activating scheme logic condition A or Red R AUTO RECLOSE IN PROGRESS A Auto reclose in progress from initiation until reset or lockout AUTO RECLOSE INHIBIT A A R initiation temporarily inhibited following manual CB closing See under Main Operating Features AUTO RECLOSE OUT OF Auto reclose selected out of service SERVICE A MAINTENANCE LOCKOUT R RST Maint Cou
13. All measurement values can be displayed on the front of the relay The display will be in primary system values if the voltage transformer ratios are entered under CHECK SYNCH STGS The default setting for these ratios is 1 1 the displayed settings and measured values then being in terms of the secondary quantities from the primary transducers 0 100 200 300 400 Frequency Hz P2114ENa Figure 2 Frequency response for single voltage input Alarms Scheme alarms Scheme alarms are indicated by either the red or amber LED being on steady or flashing Conditions that cause an alarm to be given are determined in the ladder diagram See Section 2 11 for a full description The operation of any scheme alarm will cause the corresponding bit in the SYS Alarms cell to be set R8507D Service Manual Page 20 106 KAVR 100 2 15 2 Self monitoring alarms The monitoring circuits within the relay continually perform a self test routine Any detected loss of operation in the first instance initiates a reset sequence to return the equipment to a serviceable state Examples of this are the main processor the communication processor and the display processor The voltage rails are also supervised and the processors are reset if the voltage falls outside their working range Should the main processor fail and not restart the watchdog relay will operate to provide an alarm This relay will also alarm loss of the auxiliary energising supply to th
14. 01 HOLIMS xnv 82 S 9 05 2 1 02 350 61 E 81 EE 2 gt c Ze 98 ut t N e be 4 1 52 7 Ny Tej NOILYLOX 3SVHd a 3 E Add iS lt cer 20 29 El 204 9 9 1320 auto reclose application diagram Midos synchronising relay type KAVR 102 Typical Figure 32 85070 96 106 11 COMMISSIONING TEST RECORD Relay type K Relay model Date number Relay firmware number Station Serial number Circuit Rated voltage Vn 0 57 120V ac Auxiliary voltage 24 125V 8 1 8 1 4 8 1 5 8 1 7 8 1 8 8 3 8 3 1 8 3 2 8 3 3 48 250V Commissioning preliminaries Serial number on case module and cover checked CT shorting switches in case checked Terminals 21 and 22 23 and 24 25 and 26 27 and 28 checked for continuity with module removed from case External wiring checked to diagram if available Earth connection to case checked Test block connections checked Insulation checked Auxiliary supply checked Auxiliary voltage at relay terminals Service Manual KAVR 100 tick V ac dc Watchdog contacts checked Supply off Terminals 3 and 5 Terminals 4 and 6 Supply on Terminals 3 and 5 Terminals 4 and 6 Field voltage
15. 9 3 2 9 3 3 Function links cannot be changed Enter the password as these menu cells are protected Links are not selectable if associated text is not displayed Timer and counter settings cannot be changed Return the relay to an AREVA T amp D agent Counters cannot be reset Return the relay to an AREVA T amp D agent Alarms If the watchdog relay operates first check that the relay is energised from the auxiliary supply If so then try to determine the cause of the problem by examining the alarm flags towards the bottom of the SYSTEM DATA column of the menu This will not be possible if the display is not responding to key presses Having attempted to determine the cause of the alarm it may be possible to return the relay to an operational state by resetting it To do this remove the auxiliary power supply for about 10 seconds Then re establish the supplies and the relay should in most cases return to an operating state Recheck the alarm status if the alarm LED is still indicating an alarm state The following notes will give further guidance Watchdog alarm The watchdog relay will pick up when the relay is operational to indicate a healthy state with its make contact closed When an alarm condition that requires some action to be taken is detected the watch dog relay resets and its break contact will close to give an alarm Note The green LED will usually follow the operation of the watchdog relay in either of the above
16. B 1 SPRCHGED P7 PB R4 P2 Ri RI DicoMp B 1 CLOSEOK SYNOK CCWINDOW P7 R1 P2 P4 R4 P3 R2 1 LOINIT P19 RI P2 Ri ARSTART sEQGNT INITAUX MNTLOCKT gt PT SHOTS P12 R3 4 EXCESSFF 04 13 R3 BAR P3 R5 CPELAPS CBCLOSED T CBFAIL 1 ak Hu H P8 R3 P8 R4 CB oprAL 1315 Figure 22 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 85070 62 106 Service Manual KAVR 100 PAGE 10 LOINIT LOCKOUT LOCKOUT Pg R4 NOSYN RESETLO ARLCKT oH Roa P2 R2 P10 R6 OSPRCHG RESETLKT GlobeRst LOCKOUT e LESZ P2 R3 input 7 TRIPFAIL LORESET T P6 R1 userin 2 CBFAIL FNCT 8 T gue P9 R5 LOCKOUTM FNCT 1 T RESETLO INHITIME P10 RI 09 P2 C B 1 10 PAGE 11 PROTOP L i EFECOUNT M L O EFF L O T R3 P6 R6 1 NONARFLT INCMCNT PROTCNT input 5 6 PROTCNT M COUNT P11 R2 M COUNT MAINT M LO 08 DECMCNT M COUNT DEG userin 5 PAGE 12 MAINT 1 0 Pid R2 PROTCNT MAINT AINTLKT H H H RLS P11 R2 P11 R4 FNCT 12 MNTLOCKT CS4
17. Scheme lockout is initiated and a local alarm is generated if the circuit breaker does not trip or the protection does not reset within a period equal to TMR TripfailTime setting following auto reclose initiation The alarm resets when the circuit breaker finally trips and protection resets or when the relay is reset from lockout by any of the methods described above 2 2 17 Auto reclose without protection If Scheme Fn Links 1 bit 4 is set to 1 an auto reclose cycle can be initiated by any CB trip without reference to protection which may be useful during testing commissioning See 2 8 below 2 2 18 ARinitiation with CB open If Scheme Fn Links 1 bit 5 is set to 1 an auto reclose cycle can be initiated by protection operation even if the circuit breaker is initially open which may be useful during testing or commissioning See 2 8 below 2 2 19 Maintained close pulse If Scheme Fn Links 1 bit D is set to 1 the CB Close signal is not cut off when the circuit breaker closes but is maintained for the set TMR Close Pulse time This option may be preferred for some types of circuit breaker closing mechanism Anti pumping logic is included to cut off the CB Close signal if the protection re operates or the circuit breaker re trips before the set close pulse time has elapsed Service Manual R8507D KAVR 100 Page 7 106 2 3 Opto isolated Inputs KAVR relays have eight opto isolated inputs with software filtering to prevent maloperatio
18. as described in Section 5 MENU SYSTEM Setting ranges are detailed in Section 7 TECHNICAL DATA Service Manual R8507D KAVR 100 Page 17 106 The Phase Angle and System Angle comparators are identical in operation but can have different settings for example to permit auto reclosing with phase angle up to setting 81 or manual CB closing with phase angle up to setting 02 Each of these comparators will give an output to the scheme logic provided 1 it is enabled by setting the relevant CSS Fn Links bit to 1 bit O to enable phase angle check or bit 5 to enable system angle check AND 2 the ladder logic input to the element is on AND 3 the measured magnitude of BOTH incoming voltages is greater than 5 volts AND 4 a if the slip time delayed operation feature is enabled by setting the relevant CSS Fn Links bit to 1 bit 2 for phase angle check or bit 7 for system angle check the measured phase angle between incoming line and bus voltages is less than the set angle CSS Phase angle or CSS System angle as relevant for a time greater than the set delay time CSS Synch timer for phase angle check or CSS System timer for system angle check or b if the slip time delayed operation feature is disabled by setting the relevant CSS Fn Links bit to bit 2 for phase angle check or bit 7 for system angle check the measured phase angle between incoming line and bus voltages is less than the set angle CSS Pha
19. long Ifa resettable cell is displayed it will be reset Table 8 1 R8507D Service Manual Page 78 106 KAVR 100 8 1 1 2 With the cover removed from the case Current Display Key Press Effect of Action Column Heading Move to next column heading Move to previous column heading A settable cell or Puts the relay in the setting mode flashing cursor on bottom line of display if the cell is not password protected or blocked in the ladder diagram Setting mode Increments value Decrements value F Changes to the confirmation display If function links relay or input masks are displayed then the F key will step through them from left to right A further key press will change to the confirmation display 0 Escapes from the setting mode without setting being changed Confirmation Confirms setting and enters new value display Returns prospective value of setting for checking and further modification 0 Escapes from the setting mode without the setting being changed Table 8 2 8 1 2 Terminal allocation Reference should be made to the diagram supplied with every relay The diagram number will be found on the label fixed inside the case to the left hand side Section 2 3 of the document provides useful notes on the connections to the relay 8 1 3 Electrostatic discharge ESD See recommendations in Section 1 of this service manual before h
20. provided FNCT 22 1 KAVR relays have eight output relays each with one normally open contact plus a watchdog output with one normally open and one normally closed contact KAVR100 scheme logic has sixteen functional logic outputs The outputs required for any specific application are selected by setting RELAY MASKS to assign one or more output relays to each required logic output Although most selections are one to one parallel settings are possible A single output relay may be activated by more than one logic output and a single logic output can activate more than one output relay The available logic outputs are described below The default mask settings are listed in scheme logic diagram drg 08 KVTR10O 01 Display Name RLY A R In Prog RLY CB Close Sig RLY AR Available RLY Block InstPr RLY Maint Alarm RLY MaintLockout RLY Exc Flt Frq RLY CB Failclose RLY C Ld Pickup RLY A R Lockout RLY ManCl AR Inh RLY OutOfService RLY Enable Inst Operating Logic Auto reclose cycle in progress CB close signal AR logic in service and not locked out Operates to inhibit non discriminating protection trip function set number of trips Fault trips counter gt maintenance alarm target Fault trips counter gt maintenance lockout target Excessive fault frequency lockout CB failed to close when signal was applied Operates for set Cold Load Pickup time following manual CB close on to previously dead
21. the frequency of the tracked signal In the absence of a signal to track the sampling rate settles to that determined from the set rated frequency Fn In the presence of a signal within the tracking range 45Hz to 65Hz the relay will lock on and the 1 on the horizontal scale in Figure 1 will correspond to the current value of the power system frequency The resulting output for the second third fourth fifth and sixth harmonics will be zero Frequencies in between the harmonics of any significant amplitude do not generally exist on the power system Hence the first higher frequency to give an output is the seventh as already mentioned Phase signals contain a predominant power frequency component and are given preference for frequency tracking Then the frequency response will be represented by Figure 1 Figure 2 shows the response when tracking a signal with little or no fundamental power frequency component When the signal is outside the frequency tracking range of 45 to 65Hz the relay will try to lock on to a sub harmonic of the signal frequency and give the response shown When a transformer is energised an almost pure second harmonic current can appear in the neutral circuit Multiple relays with a combined earth ground fault element are best suited to such applications because the frequency tracking will lock onto the phase signals which will be predominantly at the power frequency and the second harmonic response will be zero
22. 05 1 2 Settings file issue A KAVR10001x1xJEB gt xJEC Feb 1994 to August 1994 1 Remove out of service OOS flag to avoid unwanted watchdog operation when switched out of service 2 Operating system upgrade to 1 1 Vline and Vbus option added to default display En Log Evts function link added set alarm condition added to generate an event when an alarm occurs Issue Date SYS Software Ref SYS Ladder Ref Jan 1994 Op Sys 1 05 KAVR100ED C1 2 March 1994 Op Sys 1 1 C1 3 Settings file issue A for KAVRTOOED 1 2 and B for C1 2 KAVR10001x1xJEC gt xJED Feb 1994 to Nov 1995 1 Operating system upgrade to issue 1 12 reset alarm condition added 2 Operating system upgrade to issue 1 21 Reset Alarms cell made available in default display Operating system upgrade to issue 1 3 minor bug fix of op system software Operating system upgrade to issue 1 31 test watchdog feature added Operating system upgrade to issue 1 34 minor bug fix of op system software Operating system upgrade to issue 1 40 minor bug fix of op system software Operating system upgrade to issue 1 41 minor bug fix of op system software Issue Date SYS Software Ref SYS Ladder Ref August 1994 Op Sys 1 12 KAVR1OOEF C1 41 Dec 1994 Op Sys 1 21 KAVR10OEG C1 43 March 1995 Op Sys 1 3 1 44 May 1995 Op Sys 1 31 KAVR10OEI C1
23. 1 amp 2 list all the scheme logic elements accessible via the user interface sheets 3 to 9 document the logic in ladder diagram format and sheets 10 amp 11 list the factory default relay settings Another version of the logic diagram drawing number 08 KAVR102 01 sheets 1 to 11 is available on request with spaces for users to fill in details of settings when changed from the default values Drawing 08 KAVR102 00 sheets 1 to 9 are identical to 08 KAVR102 01 sheets 1 to 9 only sheets 10 amp 11 are different 6 1 Ladder logic The ladder logic shown in the above drawing is a graphical representation of the actual scheme logic The ladder logic is arranged in a series of pages each having six rows of seven elements Each element position can be either blank or occupied by a graphical symbol representing a specific logic test in columns 1 to 6 from the left hand side of the page or logic flag in column 7 A key to the ladder logic symbols is given in drawing number 08 KAXX 00 sheets 1 amp 2 The scheme logic is executed once every ten milliseconds executing all pages sequentially starting with page 1 On every page the logic tests are executed column by column from left to right across the page then the flags or actions in column 7 are set or reset according to the inputs resulting from the logic tests before the next page logic is tested The flags on each page then remain in the same state until that page is tested again during the
24. 2 R4 P9 R4 P2 Ri P9 R4 P9 R3 FNCT 13 C B 1 CLOSECR TOTSHOTS INCE 00 P2 P9 RI MCLPREP FNCT 2 CPELAPS cele Pig R6 02 CBCLOSED CBCLOSED PO R4 DTCOMP CBCLOSED 1 SPRCHGED P7 Ri P9 R4 P2 R RI prcoup CLOSEOK SYNOK 7 RI P2 R1 P4 R4 P3 R2 P1264ENa Figure 11 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 Service Manual KAVR 100 R8507D Page 51 106 PAGE 10 LOINIT CBFAIL PAGE 11 LOCKOUT PAGE 12 L O EFF 1 0 RTIME 1 LOINIT P20 P2 SEFPROT rFsEaecwr INITAUX MNTLOCKT 2 2 2 ih 1 R4 P5 R2 P13 R3 MAINPROT SEGCNT EXCESSFF SEQ L SHOTS P1 RI P14 R3 4 BAR 04 P3 R5 CPELAPS CBCLOSED CBFAIL Cab RL7 P9 R3 P9 R4 C B 1 CBFAIL P2 P10 R5 LOINIT LOCKOUT M P10 R1 NOSYN RESETLO ARLCKT P2 R2 11 R6 NOSPRCHG RESETLKT GlobeRst 2 e 52 R2 R input 7 TRIPFAIL LORESET userin 2 CBFAIL FNCT 8 RESTIME DPU P10 R5 08 LOCKOUTM FNCT 9 RESETLO INTIME P11 R1 09 P2 PROTOP FNCT 10 EFFCOUNT R5 26 R6 P2 RI OA NO
25. 20 CSS Slip Freq 50mHz CSS Synch Timer 1 Second CSS System Angle 20 CSS System Slip 50mHz CSS System Timer 1 Second CSS V B L Llve 32V CSS V B L Dead 13V CSS Undervoltage 54V CSS Diff Voltage 6 5V P1311ENa Figure 27 Relay settings KAVR 102 factory default settings Drg No 08 KAVR 102 01 Service Manual KAVR 100 R8507D Page 67 106 COUNTER SETTINGS CNS Shots 1 CNS Inst Trips CNS Maint Alarm 19 CNS MaintLockout 20 CNS Exe Freg 10 RESET COUNTERS RST Maint Countr 0 RST Total 0 RST Sequence Cnt 0 RST ExFltFrq Cnt 0 LOGIC FUNCTIONS DefaultDsply Ladder Rotation Press key TEST RELAYS Select 00000000 RECORDER SETTINGS REC Control Triggered REC Capture Samples REC Post Trigger 511 Samples SYSTEM SETTINGS SYS Password AAAA SYS Description RECLOSE CHKSYN SYS Plant Ref RECLOSE CHKSYN SYS Frequency 50Hz SYS Rly Address 255 P1312ENa Figure 28 Relay settings KAVR 102 factory default settings Drg No 08 KAVR 102 01 R8507D Page 68 106 Service Manual KAVR 100 e e e o or o o Q DDU c pa 4 87 z M DEADLINE LIVELINE EAD BUS MONITOR DEADLINE DEAD BUS MONITOR PH
26. 45 Nov 1995 Op Sys 1 34 KAVR1OOEJ C1 46 Service Manual R8507D KAVR 100 Page 105 106 Issue Date SYS Software Ref SYS Ladder Ref Nov 1996 Op Sys 1 40 1 50 June 1997 Op Sys 1 41 100 1 51 Settings file issue There were retrospective updates of opsys in Nov 1996 June 1997 for KAVR10001D1xJEC KAVR10001x1xJED gt xJEE Nov 1995 to Dec 1996 1 Operating system upgrade to issue 2 02 Opsys for new 20Mhz processor previously 1 6Mhz 2 Corrected alarm message spelling Circuit Beaker to Circuit Breaker Issue Date SYS Software Ref SYS Ladder Ref Nov 1995 Op Sys 2 02 KAVR1OOEJ 1 46 Dec 1995 Op Sys 2 02 C1 46 Settings file issue C KAVR10001x1xJEE gt xJEF Dec 1996 to March 1997 1 Increase Synch Window max time to 9999s Blockins seal in during protection operation pulsed CB Fail and Success A R operation YE modifications Issue Date SYS Software Ref SYS Ladder Ref Nov 1996 Op Sys 2 10 KAVR1OOEL C1 50 Settings file issue C KAVR10001x1xJEF gt xJEG March 1997 to Nov 1997 1 Operating system upgrade to issue 2 11 minor bug fix of op system software Issue Date SYS Software Ref SYS Ladder Ref June 1997 Op Sys 2 11 KAVRIOOEM C1 51 Settings file issue C KAVR10001x1xJEG gt xJEH Nov 1997 to July 1998 1 Logic change for Global Rese
27. 60870 5 interface unit will be required to enable the serial port to be connected to an IBM or compatible PC Suitable software will be required to run on the PC so that the records can be extracted 85070 Service Manual Page 22 106 KAVR 100 2 When the event buffer becomes full the oldest record is overwritten by the next event 3 Records are deleted when the auxiliary supply to the relay is removed to ensure 2 17 2 2 17 3 2 17 4 that the buffer does not contain invalid data Dual powered relays are most likely to be affected 4 The time tag will be valid for 48 days assuming that the auxiliary supply has not been lost within that time However there may be an error of 4 3 seconds in every 24 hour period due to the accuracy limits of the crystal This is not a problem when a master station is on line as the relays will usually be polled once every second or so Events that are recorded include 1 Change in state of opto inputs 2 Change in state of relay outputs 3 Change to settings made locally 4 Alarm messages 5 Local event records defined in the ladder diagram Items 1 and 2 may be deleted from the events by setting SYS Fn Link 7 to 0 see Section 5 1 1 Disturbance records The internal disturbance recorder has one channel allocated to each of the measured anologue quantities one to record the eight control inputs one to record the eight relay outputs As with the event recorder when the buffer is full th
28. ARISM ARAVAIL R2 P4 R6 P11 P4 P1262ENa Figure 9 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 Service Manual R8507D KAVR 100 Page 49 106 SW I SW OUT RSW OUT ARISM PAGE 4 e e e userin O userin 1 input 12 RSW IN ARINPROG input 11 P5 R4 ARIS CLOSEOK P4 RI P4 R4 LOCKOUTM prcoMp PROTOP SPRCHGED SYNOK CLOSEOK P11 R1 P7 Ri RS P3 RI P3 R2 CBME C B 1 FNCT 7 AR NHIB CS1 1 P6 R6 P2 Ri 07 LINEVMEM LINELIVE 21 ARINPROG T INHIBIT EE TS RL10 000 gt P17 R2 P17 Ri 15 P5 R4 ARSTAR CBMEM INITOK INHIBIT INITIATE PAGE 5 5 A R INITIATION PT R2 R amp 17 R3 P4 R6 FNCT 5 NITIATE INITAUX t 05 RI SEQCNT INC FNCT 4 8 1 cguEM LOCKOUTM INHIBIT ARINPROG RLO 04 P2 RI P6 R6 P17 R3 P11 R1 P4 R6 ARINPROG RTIME LOCKOUT 6510 P5 R4 P20 R1 P11 RI L SEGCNT ARINPROG SEQCNT a RES P5 R4 DTCOMP PAGE 6 AR
29. BLSEFINS RLY Blk SEF Inst is replaced by a new mask SYNCH RLY CheckSyn OK Relay mask OKSEFINS RLY SEF Inst OK is replaced by a new mask NOSYNCH RLY ChSyn Failed R8507D Service Manual Page 24 106 KAVR 100 3 Functions FNCT 18 is re designated SYNCH ANY 4 Alarms New Status 1 alarm SYNCH CHECK FAILED triggered by output relay mask NOSYNCH 5 Counter Settings SEFSHOTS CNS SEF Shots and SEFINSTR CNS SEF InsTrips are deleted 6 Ladder Logic The changes to the ladder logic are shown in section 6 Service Manual R8507D KAVR 100 Page 25 106 3 EXTERNAL CONNECTIONS Standard connection table Function Terminal Function Earth Terminal 1 2 Not Used Watchdog Relay b 3 4 22 Watchdog Relay Break contact 5 6 Make contact A8V Field Voltage 7 8 48V Field Voltage Not Used 9 10 Not Used Not Used 1 12 Not Used Auxiliary Voltage Input 13 14 Auxiliary Voltage Input Not Used 15 16 Not Used Line Voltage In 17 18 Out Line Voltage Busbar Voltage In 19 20 Out Busbar Voltage Not Used 21 22 Not Used Not Used 23 24 Not Used Not Used 25 26 Not Used Not Used 27 28 Not Used Output Relay 4 Output Relay 0 Output Relay 5 2 Output Relay 1 Output Relay 6 Output Relay 2 Output Relay 7 2 Output Relay 3 Opto Control Input L3 45 46 Opto Control Input LO Opto Con
30. Effect in scheme logic 0 all reclosures require system safe to close check D 1 1st shot after D Time 1 without system check subsequent reclosures require system safe to close check settings can be changed with scheme in or out of service D 1 settings can be changed only if scheme logic is selected out of service 0 logic correct for normal service 0 1 special setting for factory testing synch check logic 85070 Page 12 106 Logic FNCT number 19 20 21 22 23 24 25 26 27 28 29 30 31 Scheme Fn Links 2 bit no 3 Display Name LLINIT DLTIME RESET MAINT CNT DLC AR INH ARC CS ARC DLLB ARC LLDB ARC DLDB ARC ANY MCL SS MCL DLLB MCL LLDB MCL DLDB MCL ANY Service Manual KAVR 100 Effect in scheme logic 0 AR initiation amp dead time start without reference to line voltage monitor input D 1 AR initiation only if line was live up to instant of protection operation and dead time start only if line goes dead 0 disable Maint Counter reset by user control or Global Reset D 1 enable Maint Counter reset by user control or Global Reset 0 AR initiation enabled immediately atter line energisation D 1 AR initiation inhibited for TMR Mancl AR Inh time after line energisation disable AR with synch check 1 enable AR with Phase Angle check D disable AR with dead line li
31. Reference number of the operating system software READ 0012 SYS Ladder Ref Reference number of the ladder diagram software READ 0020 SYS Opto Status Status of the opto inputs READ 0021 SYS Relay Status Status of the relay outputs READ 0022 SYS Alarms State of alarms bits to 6 READ test watchdog bit 7 SET R8507D Service Manual Page 32 106 KAVR 100 0002 SYS Password PWP The selected configuration of the relay is locked under this password and cannot be changed until it has been entered Provision has been made for the user to change the password which may consists of four upper case letters in any combination In the event of the password becoming lost a recovery password may be obtained on request but the request must be accompanied by a note of the model and serial number of the relay The recovery password will be unique to one relay and will not work on any other unless the user set password is the same 0003 SYS Fn Links PWP These function links enable selection to be made from the system options for example what commands over the serial link will be acted upon LINK SYS Rem ChgStg Set to O settings can only be changed at the relay Set to 1 settings can also be changed over the communications link LINK 7 SYS En Log Evts Set to 0 changes to opto inputs and output relays do not register as events Set to 1 changes to opto inputs and output relays register as events 0004 SYS Descript
32. V Line value V Bus value RL1 state CSS V B L Dead 2V CSS V L B Dead 2V Operated CSS V B L Dead 2V CSS V L B Dead 2V Reset CSS V B L Dead 2V CSS V L B Dead 2V Reset Final settings and scheme test When synchronism check and voltage monitor element checks have been completed the final in service relay settings should be entered KAVR relays are factory configured with a set of default settings before dispatch The commissioning engineer should be supplied with a list of all required settings for each relay installation Any required settings which are different from the default settings and any settings which were changed for testing see 8 7 and 8 8 above may be adjusted either by following the procedures detailed in Section 5 2 5 2 1 to 5 2 7 or using a PC with suitable access software and a KITZ interface It is particularly important that Scheme Fn Links 1 bit 2 SYNCH TEST and Scheme Fn Links 2 bit 2 MCL CS are set to 0 for normal service CSS Fn Links bits A 9 8 5 amp 0 should all be set to 1 to enable all synchronism check and voltage monitor elements to operate selection of the specific checks required for auto reclosing and manual closing can then be made using Scheme Fn Links 2 bits 0 amp 3 to scheme function links FNCT 0 amp 3 to F as described under Software Logic Functions and Synchronism Check Voltage Monitor User adjustable relay settings are found in menu columns SYSTEM DATA
33. along the bus are not communicating check to find out which are responding towards the master station If some are responding then the position of the break in the bus can be determined by deduction If none is responding then check for data on the bus or reset the communication port driving the bus with requests Check there are not two relays with the same address on the bus 9 5 3 No response to remote control commands Check that the relay is not inhibited from responding to remote commands by observing the system data function link settings If so reset as necessary a password will be required System data function links can not be set over the communication link if the remote change of settings has been inhibited by setting system data function link SDO to O Reset SDO to 1 manually via the user interface on the relay first Service Manual R8507D KAVR 100 Page 91 106 10 MAINTENANCE 10 1 Testing 10 1 1 10 1 2 10 1 3 10 2 10 3 10 3 1 K Series MIDOS relays are self supervising and so require less maintenance than earlier designs of relay Most problems will result in an alarm so that remedial action can be taken However some periodic tests could be done to ensure that the relay is functioning correctly If the relay can be communicated with from a remote point via its serial port then some testing can be carried out without actually visiting the site When testing locally the same tests may be carried out to c
34. and the protection reset At the end of the dead time a CB Close signal is given output RLY CB Close Sig provided selected system conditions are satisfied and the circuit breaker is healthy Input INP Spring Charg is a composite signal from the CB indicating that it is in a fit state to operate e g closing spring charged gas or oil pressure OK etc The CB Close signal is cut off when the circuit breaker closes When the circuit breaker closes the reclaim time starts Reclaim Time If the circuit breaker does not retrip the relay resets at the end of the reclaim time If the protection re operates and retrips the circuit breaker before the reclaim time has elapsed the relay either advances to the next shot in the programmed cycle or if all programmed shots have been made goes to lockout Main operating features Selection in and out of service The scheme can be switched in or out of service Auto reclosing On and Off either by activating input masks INP RemSw and INP RemSw Outsrv if assigned to opto inputs or by user controls USR Switch inSrv or USR Sw outofServ via relay user interface or K Bus Selectable options via software function links The scheme logic includes 32 scheme function links described in section 2 8 below Each function link is a software switch with two setting positions and 1 The scheme function links allow scheme logic to be configured to suit the specitic requir
35. as the protective relays themselves Service Manual R8507D KAVR 100 Page 23 106 221755 2 18 and must not result in their performance degraded way Hence error checking and noise rejection has been a major concern in its design The communication port is based on EIA RS 485 voltage transmission and reception levels with galvanic isolation provided by a transformer A polled protocol is used and no relay unit is allowed to transmit unless it receives a valid message without any detected error addressed to it Transmission is synchronous over a pair of screened wires and the data is FMO coded with the clock signal to remove any dc component to enable the signal to pass through the transformers This method of encoding the data results in the polarity of the connection to the bus wiring being unimportant With the exception of the master units each node in the network is passive and any failed unit on the system will not interfere with communication to the other units The frame format is HDLC and the data rate is 64 kbits second Up to 32 units may be connected to any bus at any point over a maximum length of 1000 metres Notes on security of remote control via the serial port Access to the memory of the relay is restricted to that addressed via the menu system of the relay In addition all setting changes are reflexed back to the master station for verification before the EXECUTE command is issued On reception o
36. circuit AR scheme locked out AR initiation temporarily inhibited following manual CB close AR logic selected out of service Normally operated resets to inhibit non discriminating protection trip function after set number of trips Inverse of RLY Block InstPr for use where N C normally closed contact is required Service Manual KAVR 100 2 6 2 7 2 8 Display RLY Blk SEF Inst RLY SEF Inst OK RLY A R Success Control Outputs R8507D Page 9 106 Operating Logic Operates to inhibit fast SEF protection trip function after set number of trips Normally operated resets to inhibit fast SEF protection trip function after set number of trips Inverse of RLY Blk SEF Inst for use where N C normally closed contact is required CB remained closed to end of reclaim time Fourteen control outputs see Sections 5 1 1 cell OOOD and 5 1 3 are available for relay status indications through the user interface as described below Display Name CTL DT in Prog CTL in Prog CTL A R Lockout CTL Maint Alarm CTL MaintLockout CTL Block InstPr CTL Exc Flt CTL OutofService CTL CB Failclose CTL CldLd Pickup CTL ArinProgress CTL ManCl AR Inh CTL Blk SEF Inst CTL A R Success Operating Logic Dead time in progress Reclaim time in progress Scheme locked out Maintenance alarm pre lockout warning Maintenance lockout Non discriminating protection trip function inhibited Ex
37. circuits are well protected by the metal case and the internal module should not be withdrawn unnecessarily When handling the module outside its case care should be taken to avoid contact with components and electrical connections If removed from the case for storage the module should be placed in an electrically conducting anti static bag There are no setting adjustments within the module and it is advised that it is not unnecessarily disassembled Although the printed circuit boards are plugged together the connectors are a manufacturing aid and not intended for frequent dismantling in fact considerable effort may be required to separate them Touching the printed circuit board should be avoided since complementary metal oxide semiconductors CMOS are used which can be damaged by static electricity discharged from the body 1 2 Handling of electronic equipment A person s normal movements can easily generate electrostatic potentials of several thousand volts Discharge of these voltages into semiconductor devices when handling electronic circuits can cause serious damage which often may not be immediately apparent but the reliability of the circuit will have been reduced The electronic circuits are completely safe from electrostatic discharge when housed in the case Do not expose them to risk of damage by withdrawing modules unnecessarily Each module incorporates the highest practicable protection for its semiconductor devices Howe
38. data section of the product documentation Insulation class Insulation Category Overvoltage Environment Product Safety IEC 601010 1 1990 A2 2001 Class 61010 1 2001 Class IEC 601010 1 1990 A2 1995 Category EN 61010 1 2001 Category III IEC 601010 1 1990 A2 1995 Pollution degree 2 EN 61010 1 2001 Pollution degree 2 72 23 61010 1 2001 60950 1 2002 This equipment requires protective safety earth connection to ensure user safety Distribution level fixed insulation Equipment in this category is qualification tested at 5kV peak 1 2 50us 500Q 0 5J between all supply circuits and earth and also between independent circuits Compliance is demonstrated by reference to generic safety standards Compliance with the European Commission Low Voltage Directive Compliance is demonstrated by reference to generic safety standards Service Manual R8507D KAVR 100 PURPOSE OF THIS MANUAL This manual is intended as a guide to the setting procedures for the KAVR 100 multi shot auto reclose and check synchronism relay It explains the optional features of this relay and how they may be selected Some of the options involve the use of the serial communication channel but only the setting up of the relay for these functions is covered in this document together with some notes on the operation of these functions within the relay The ext
39. displayed The F key may then be used to move the cursor to the position of the next character and so Follow the instructions in Section 5 2 to exit from the setting change Changing function links Select the page heading required and step down to the FUNCTION LINKS cell required and press either the or to put the relay in a setting change mode cursor will flash on the bottom line at the extreme left position This is link F as indicated by the character printed on the front plate under the display Press the F key to step along the row of links one link at a time until some text appears on the top line that describes the function of a link The key will change the link to a 1 to set the function and the key will change it to a 0 to clear it Not all links can be set some being factory selected and locked The links that are locked in this way are usually those for functions that are not supported by a particular relay when they will be set to 0 Merely moving the cursor past a link position does not change it in any way Changing setting values Move through the menu until the cell that is to be edited is displayed Press the or key to put the relay into the setting change mode cursor will flash in the extreme left hand position on the bottom line of the display to indicate that the relay is ready to have the setting changed The value will be incremented in single steps by each momenta
40. front plate will assist in removing the module from the case Three light emitting diodes LED s provide status indication and in addition there may be a liquid crystal display and a four key pad for access to settings and other readable data LED indications The three LED s provide the following functions GREEN LED Indicates the relay is powered up and running most cases it follows the watchdog relay Service Manual KAVR 100 YELLOW LED RED LED 4 3 Keypad 4 4 R8507D Page 29 106 1 Indicates alarm conditions that have been detected by the relay during its self checking routine 2 Flashes when the password is entered password inhibition temporarily overridden 9 Indicates alarm condition s entered in the logic diagram have occurred Indicates alarm condition s defined in the ladder diagram have occurred Four keys on the front plate of the relay enable the user to select the data to be displayed and settings to be changed The keys perform the following functions s 0 FUNCTION SELECT KEY INCREMENT VALUE KEY DECREMENT VALUE KEY RESET ESCAPE KEY Liquid crystal display The liquid crystal display LCD has two lines each of sixteen characters that are used to display settings measured values and records which are extracted from the relays data bank A backlight is activated when any of the keys on the front plate of the relay is momentarily pressed This enables the display to
41. hand terminal block to the top plate of the module Remove the two screws securing the right hand terminal block to the bottom plate of the module Unplug the back plane from the power supply PCB Twist outwards and around to the side of the module Replace the PCB and terminal block assembly Reassemble in the reverse of this sequence Recalibration Whilst recalibration is not usually necessary it is possible to carry it out on site but it requires test equipment with suitable accuracy and a special calibration program to run on a PC It is recommended that the work is carried out by an authorised agency After calibration it will be necessary to re enter all the settings required for the application so it will be useful to have a copy of the settings available on a floppy disk Although this is not essential it can reduce the down time of the system Return to factory Should the need arise for the equipment to be returned to AREVA T amp D for repair then the Repair Form at the back of this manual should be completed and sent with the equipment A copy of any commissioning test results should also be sent with the equipment 001 YAYA 4 Anjou BuisiuoiysudAs 49942 sopiw LE eanbiy Phase rotation gt TG e N 0 CO gs A 0 N
42. may expose hazardous live parts such as relay contacts Insertion and withdrawal of extender cards When using an extender card this should not be inserted or withdrawn from the equipment whilst it is energised This is to avoid possible shock or damage hazards Hazardous live voltages may be accessible on the extender card Insertion and withdrawal of heavy current test plugs When using a heavy current test plug CT shorting links must be in place before insertion or removal to avoid potentially lethal voltages DECOMMISSIONING AND DISPOSAL Decommissioning The auxiliary supply circuit in the relay may include capacitors across the supply or to earth To avoid electric shock or energy hazards after completely isolating the supplies to the relay both poles of any dc supply the capacitors should be safely discharged via the external terminals prior to decommissioning Disposal It is recommended that incineration and disposal to water courses is avoided The product should be disposed of in a safe manner Any products containing batteries should have them removed before disposal taking precautions to avoid short circuits Particular regulations within the country of operation may apply to the disposal of lithium batteries TECHNICAL SPECIFICATIONS Protective fuse rating The recommended maximum rating of the external protective fuse for this equipment is 16A Red Spot type or equivalent unless otherwise stated in the technical
43. next logic execution is important to remember that during the logic tests on any page the status of any flag on that page is seen as it was at the end of the previous execution the new flag state resulting from the current logic execution is not seen in logic tests on that page until the next execution It may be easier to interpret the scheme logic if the ladder logic is read as an electromagnetic schematic diagram treating the left and right side uprights as positive and negative supply rails flags in column 7 as relay coils and logic test symbols in columns 1 to 6 as make or break relay contacts time delayed contacts etc Using this approach it is important to remember i the sequential page by page execution as described above and ii all horizontal elements conduct left to right only as if each incorporates a blocking diode 6 2 Ladder logic element identification 6 2 1 Inputs Each ladder logic contact associated with a scheme logic input mask or user input is identified by a short ladder name which is an abbreviated version of its full display name Each element is further identified input n or userin n where n refers to the position of the input in the associated list in section 2 3 or 2 4 List numbering starts at O Input n numbers refer to the list positions of INPUT MASKS not to any specific opto inputs Service Manual R8507D KAVR 100 Page 45 106 6 2 2 6 2 3 6 2 4 Ou
44. node L is energised Software Relay with power off memory Recalls its previous status when dc auxiliary supply is restored after interruption Software relay blocks access to the named function of the user interface when live Software relay with output element having contacts wired to relay terminals relay number RL given in brackets Output contacts shown on extrtnal connections diagram amead counter register increments when node changes trom aeaa live Named ter register i ts by 1 wh de L changes from dead to li counter register increments cnanges trom live Named ter register i ts by 1 wh de 1 changes from live to dead counter register resets TO zero when node cnanges trom live Named ter regist ts f h de 1 changes from dead to li counter register resets TO zero when node cnanges trom live Named ter regist ts f h de L changes from live to dead counter register decrements when cnanges trom live Named ter register d ts by 1 wh de L changes from dead to li Named counter register decrements by 1 when node L changes from live to dead Figure 30 Ladder diagram symbols Drg No 08 KAXX 00 sheet 1 TECHNICAL DATA Ratings Inputs Input Voltage Vn Nominal Rating Operative Range 63 5 110V 5 440V Auxiliary Voltage Vx Nominal Rating Operative Range Absol
45. operate Slowly increase the phase angle until RL1 resets and note the angle when this happens This should be less than CSS System Angle setting 1 Slowly decrease the phase angle until re operates and note the angle when this happens This should be greater than CSS System Angle setting 3 8 7 6 System angle check delay on operation Under CHECK SYNCH STGS change CSS Fn Links to 0000000010100000 Set the phase angle between V Line and V Bus inputs greater than CSS System Angle setting so that output is reset Switch the phase angle to zero and measure the time for output RL1 to operate This should be not less than CSS System Timer setting 5 0 015 and not greater than CSS System Timer setting 5 0 045 8 7 7 System angle check undervoltage blocking Under CHECK SYNCH STGS change CSS Fn Links to 0000100000100000 Set both voltages to greater than CSS Undervoltage setting and phase angle to zero Out put should be operated Slowly reduce V Line until resets and note the value when this happens This should be within or 5 of CSS Undervoltage setting Slowly increase V Line until RL1 re operates and note the value when this happens This should be within 096 and 10 of the reset value Slowly reduce V Bus until RL1 resets and note the value when this happens This should be within or 5 of CSS Undervoltage setting Service Manual R8507D KAVR 100 Page 85 1
46. output mask RLY Exc Flt for indication purposes if pre selected number of fault trips CNS Exc Flt Frq setting occurs during a defined period TMR Exc Flt Frq setting for example in a lightning storm Line voltage interlock When enabled by software function link selection this feature inserts additional checks in the auto reclose initiation and dead time start logic such that an auto reclose cycle cannot be initiated unless the line was live until immediately before the protective relay operation and the dead time cannot start until the line has gone dead An adjustable line voltage memory timer is included in case the line voltage drops due to the fault before the protective relay operates Reset from lockout Once the condition which caused the lockout is no longer true the relay can be reset by any of the following methods automatically after time setting Mancl Inh following successful manual CB closure optional select by software function link setting automatically after time setting Autoreset irrespective of CB operation optional select by software function link setting user input via K Bus see 2 4 below R8507D Service Manual Page 6 106 KAVR 100 opto input assigned to input mask INP ResetLockout see 2 3 below pressing 0 when Reset Alarms 0 is displayed see 2 11 Scheme Alarms 2 2 13 Omit first shot This is enabled by setting input masks such
47. that mask INP Omit 1st Sht is activated by the same opto input as the selected protection e g INP Main Protn Then when the selected protection operates the auto reclose cycle omits the first shot of the programmed cycle and immediately executes the programmed second shot instead This feature allows for example the relay to execute a two shot auto reclose cycle high speed AR then delayed AR when initiated by input INP Inst Protn or a single shot delayed AR cycle when initiated by input INP Main Protn 2 2 14 Successful auto reclose indication Output mask RLY A R Success and control output CTL A R Success operate if the circuit breaker has auto reclosed during the cycle and has remained closed up to the end of the reclaim time Output mask RLY A R Success resets after two seconds fixed pulse time Control output CTL A R Success resets at the next circuit breaker trip 2 2 15 CB failed to close alarm Output mask RLY CB Failclose and control output CTL CB Failclose operate scheme lockout is initiated and a local alarm is generated if the circuit breaker does not close within a period equal to TMR Close Pulse setting when the CB Close signal is given Output mask RLY CB Failclose resets after two seconds fixed pulse time Control output CTL CB Failclose and the local alarm indication both reset when the circuit breaker is closed or the relay is reset from lockout by any of the methods described above 2 2 16 Fault not cleared alarm
48. the auxiliary disconnected from the relay use a continuity tester to monitor the state of the watchdog contacts as listed in Table 8 4 Connect the auxiliary supply to the relay The relay should power up with the LCD showing the default display and the centre green LED being illuminated this indicates the relay is healthy The relay has a non volatile memory which remembers the state ON or OFF of the power fail software relays when the relay was last powered This may cause an alarm to be set when the scheme logic is run causing one or both of the LED indicators to be illuminated With a continuity checker monitor the state of watchdog contacts as listed in Table 8 4 Terminals With Relay De energised With Relay Energised 3 and 5 contact closed contact open 4 and 6 contact open contact closed Table 8 4 Service Manual R8507D KAVR 100 Page 81 106 8 3 3 8 4 8 5 Field voltage The relay generates a field voltage that should be used to energise the opto isolated inputs With the relay energised measure the field voltage across terminals 7 and 8 Terminal 7 should be positive with respect to terminal 8 and should be within the range specified in Table 8 5 when no load is connected Nominal de Rating V Range V 48 45 60 Table 8 5 Measurement checks To test the relay measurement functions a known voltage should be injected into each ac input With the VT Ratio settings of th
49. the frontplate Remove the frontplate Lever the top edge of the user interface board forwards to unclip it from its mounting R8507D Service Manual Page 92 106 KAVR 100 10 3 2 10 3 3 Then pull the PCB upwards to unplug it from the connector at its lower edge Replace with a new interface board and assemble in the reverse order b Replacement of main processor board This is the PCB at the extreme left of the module when viewed from the front To replace this board First remove the screws holding the side screen in place There are two screws through the top plate of the module and two more through the base plate Remove screen to expose the PCB Remove the two retaining screws one at the top edge and the other directly below it on the lower edge of the PCB Separate the PCB from the sockets at the front edge of the board that they are a tight fit and will require levering apart taking care to ease the connectors apart gradually so as not to crack the front PCB card The connectors are designed for ease of assembly in manufacture and not for continual disassembly of the unit Reassemble in the reverse of this sequence making sure that the screen plate is replaced with all four screws securing it c Replacement of auxiliary expansion board This is the second board in from the left hand side of the module Remove the processor board as described above in b Remove the two securing screws that hold the au
50. the serial number of the relay used as the file name The setting can then be readily loaded back into the relay if necessary or to a replacement relay No Service alarm This alarm flag can only be observed when the relay is in the calibration or configuration mode when the protection program will be stopped Records Problems with event records The event records are erased if the auxiliary supply to the relay is lost for a period exceeding the hold up time of the internal power supply Only limited event data can only be read on the LCD To obtain full event data the event records must be read via the serial communications port The oldest event is overwritten by the next event to be stored when the buffer becomes full When a master station has successfully read a record it usually clears it automatically and when all records have been read the event bit in the status byte is set to O to indicate that there are no longer any records to be retrieved Problems with disturbance records Only one record can be held in the buffer and the recorder must be reset before another record can be stored The disturbance records are erased if the auxiliary supply to the relay is lost for a period exceeding the hold up time of the internal power supply Disturbance records can only be read via the serial communications port lt is not possible to display them on the LCD No trigger selected to initiate the storing of a disturba
51. this is not generally available as a remote alarm The alarm state can be determined via the menu of the relay in the SYS Alarms cell Error 0 could result in incorrect operation due to the configuration error so the application software is stopped the watchdog relay given an alarm and the menu locked with the default display showing Unconfigured For error 1 the relay will continue to perform its intended function but with some reduction in accuracy Service Manual R8507D KAVR 100 Page 21 106 2 15 3 Watchdog test feature 2 17 1 The test watchdog bit can be set cleared as a normal setting When set to 1 the watchdog relay drops off the amber LED lights up and the alarm bit in the communications status byte is set When the bit is reset to zero all these features revert to normal Password protection Password protection is only provided for the configuration settings of the relay This includes VT ratios system and check synchronism function link settings opto input and relay output allocation Any accidental change to configuration could seriously the ability of the relay to perform its intended functions whereas a setting error may only cause a grading problem Individual relay settings are protected from change when the relay cover is in place Serial communication Serial communications are supported over K Bus a multidrop network that readily interfaces to IEC 60870 5 FT1 2 Standards The
52. 0 0 0 0 0 0 RLY OutOfService INP RemSw Outserv 06010 0 0 0 0 0 0 RLY Enable Inst INP Inst SEF RLY SEF Inst Sensitive EF o ololololololo RLY SEF Inst olololololololo RLY A R Success CHECK SYNCH SETTINGS CSS Ratio ul CSS Phase Angle 20 CSS Slip Freq 50mHz CSS Synch Timer Second CSS System Angle 20 CSS System Slip 50mHz CSS System Timer Second CSS V B L Llve 32V CSS V B L Dead CSS Undervoltage 54V CSS Diff Voltage 6 5V P1260ENa Figure 16 Drg No 08 KAVR 10001 Relay settings KAVR 100 factory default settings R8507D Page 56 106 Service Manual KAVR 100 COUNTER SETTINGS CNS Shots 1 CNS Inst Trips 1 CNS Maint Alarm 19 CNS MaintLockout 20 CNS Exc Freq 10 CNS SEF Shots 0 CNS SEF InsTrips RESET COUNTERS RST Maint Countr RST Total Reclos RST Sequence Cnt RST Cnt LOGIC FUNCTIONS DefaultDsply Ladder Rotation Press key TEST RELAYS Select 00000000 RECORDER SETTINGS REC Control Triggered REC Capture Samples REC Post Trigger 511 Samples SYSTEM SETTINGS SYS Password SYS Description RECLOSE CHKSYN SYS Plant Ref RECLOSE CHKSYN SYS Frequency SOHz SYS Rly A
53. 00 01 62 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 63 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 64 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 65 Relay settings KAVR 102 factory default settings Drg No 08 KAVR 102 01 66 Relay settings KAVR 102 factory default settings Drg No 08 KAVR 102 01 67 Ladder diagram symbols Drg No 08 KAXX 00 sheet 1 68 Ladder diagram symbols Drg No 08 KAXX 00 sheet 1 69 Typical application diagram Midos auto reclose and check synchronising relay type KAVR 100 94 Typical application diagram Midos auto reclose and check synchronising relay type KAVR 102 95 R8507D Service Manual KAVR 100 Service Manual R8507D KAVR 100 Page 1 106 1 HANDLING AND INSTALLATION 1 1 General considerations 1 1 1 Receipt of relays Protective and control relays although generally of robust construction require careful treatment prior to installation on site Upon receipt relays should be examined immediately to ensure no damage has been sustained in transit If damage has been sustained during transit a claim should be made to the transport contractor and an AREVA T amp D representative should be promptly notified Relays that are supplied unmounted and not intended for immediate installation should be returned to their protective polythene bags 1 1 2 Electrostatic discharge ESD The relays use components that are sensitive to electrostatic discharges The electronic
54. 06 8 7 8 8 8 8 8 1 8 8 2 Slowly increase Bus until RL1 re operates and note the value when this happens This should be within 0 and 10 of the reset value System angle check differential voltage blocking Under CHECK SYNCH STGS change CSS Fn Links to 0010000000100000 Set both voltages to nominal and phase angle to zero Out put RL1 should be operated Slowly reduce V Line until RL1 resets and note the V Bus V Line value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly increase V Line until RL1 re operates and note the V Line value when this happens This should be within 0 and 10 of the V Line value when RL1 reset in the last test Continue slowly increasing V Line until resets and note the V Line V Bus value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly reduce V Line until RL re operates and note the V Line value when this happens This should within 10 and 0 of the V Line value when reset in the last test Slowly reduce V Bus until RL1 resets and note the V Line V Bus value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly increase V Bus until RLI re operates and note the V Bus value when this happens This should be within 0 and 1096 of the V Bus value when reset in the last test Continue slowly increasing V Bus until res
55. 100 Drg No 08 KAVR 100 01 Service Manual KAVR 100 R8507D Page 65 106 PAGE 19 RECLAIM TIME PAGE 20 CBFAILCL MNTALARM INST CLOSECB DTCOMP CCWINDOW RTIME input Ri P8 R6 FNCT 14 CBCLOSED RECLTIME 51 0E PB R4 ARISM OUTSRV RL11 P4 OUTSERV 1657 Cel CBFAIL CBFAILCL m m css P2 RI R5 CBFAILCL RESETLO MALRESET P2 R1 P10 R6 P20 Rg M COUNT MARESET MALRESET SAL userin 4 NTALAR cs3 ALRESET MAINTALM RL4 P20 R3 P1319ENa Figure 26 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 85070 66 106 Service Manual KAVR 100 FUNCTION LINK SETTINGS LINK NUMBER 9 8 7 6 5 4 3 2 1 0 SYS Fn Links 010 10 1010 0 0 0 1 010 0 0 0 0 1 CSS Fn Links 9 0 1 0 1 1 1 1 1 1 1 0 O0 1 1 Scheme Fn Lnks 1 0 0 0 0 0 1 0 11 0 Scheme Fn Lnks 2 1 01 01111 1 0 010 010 TIMER SETTINGS Dead Time 1 10 Seco
56. 101 SW OUT USR Sw OutofServ 0102 Y LORESET USR ResetLockout 0103 IMARESET USR Reset MAlarm 0105 Y IDECMCNT USR Dec Maintcnt 0106 Y INCMCNT USR Inc Maincnt 0107 Y IRESMCNT USR Res Maincnt 0108 Figure 7 Scheme logic diagram KAVR 100 08 KAVR 100 01 Service Manual KAVR 100 R8507D Page 47 106 Output Rela utp Output Relays Ladder Name Display Name Menu Cell Ladder Name Display Name Menu Cell ARINPROG RLY AR in Prog 0 01 COLDPKUP RLY C Ld Pickup 0 09 Y CLOSECB RLY CB Close Sig 0 02 RLY Lockout ARAVAIL RLY AR Available locos INHIBIT RLY ManCI AR Inh v BLOCKINS RLY Block InstPr 0 04 OUTSRV RLYOutofService MAINTALM RLY Maint Alarm locos ALLOWINS Rly Enable Inst Y Y MAINTLKT RLY MaintLockout 0 06 BLSEFINS RLY SEF Inst v EXFLTFRQ RLY Exc Fit Frq 0 07 OKSEFINS RLY SEF Inst OK Y 12 Y CBFAIL RLY CD Failclose 0 08 AROK RLY A R Success lOC10 Counter Registers Ladder Name Display Name Menu Cell Y M COUNT RST Maint Countr 0001 v TOTSHOTS RST Total Reclos 0002 Y Y SEQCNT RST Sequence Cnt 0009 EFFCOUNT RST ExFl
57. 147 OF It is strongly recommended that detailed investigations on electronic circuitry or modification work should be carried out in a Special Handling Area such as described in the afore mentioned BS and IEC documents Relay mounting Relays are dispatched either individually as part of a panel rack assembly loose relays are to be assembled into a scheme then construction details can be found in publication R7012 If an MMLG test block is to be included it should be positioned at the right hand side of the assembly viewed from the front Modules should remain protected by their metal case during assembly into a panel or rack The design of the relay is such that the fixing holes are accessible without removal of the cover For individually mounted relays an outline diagram is normally supplied showing the panel cut outs and hole centres These dimensions will also be found in publication R6003 Unpacking Care must be taken when unpacking and installing the relays so that none of the parts is damaged or the settings altered and they must at all times be handled by skilled persons only The installation should be clean dry and reasonably free from dust and excessive vibration The site should be well lit to facilitate inspection Relays that have been removed from their cases should not be left in situations where they are exposed to dust or damp This particularly applies to installations which are being carried out at the same
58. 3 Programs generated in Canada 4 Programs generated in South Africa 5 Programs generated in Australia VTR Autoreclose relay AVS Check synchronism relay AVR Autoreclose relay with integral check synchronism K K Series Midos CO 01 Standard configuration 02 Special configuration Malaysia CS 03 Special configuration Scottish Power Lo 1 Back connected flush mounting standard mounting May be used as an additional digit for configuration later D Midos case size 4 Yellow F Midos case size 4 Blue RTG NENNEN E Standard A Vn 0V 50 60Hz J Vn 57 120V 50 60 2 2 Vx 24 125V AC DC auxiliary powered version 5 Vx 48 250V AC DC auxiliary powered version P1074ENe Service Manual R8507D KAVR 100 Page 77 106 8 1 1 Note Initial production relays will have the voltage rating marked as Vn 110V and later models this will be marked 57 120V The voltage rating and operational range is the same for both marked ratings and the only difference is in the label affixed to the relay COMMISSIONING Commissioning preliminaries When commissioning a K Series relay for the first time the engineers should allow an hour to get familiar with the menu Please read Section 8 1 1 1 which provides simple instructions for negotiating the relay menu using push buttons and 0 on the front of the relay Individual cells can be viewed and the settable values can be chan
59. 4 2 1ms at 60Hz after the opto input was energised Service Manual R8507D KAVR 100 Page 43 106 The recorder is triggered at the end of the execution of the ladder code during which the trigger swr is changed Thus there could be up to 10ms delay between the event occurring in the ladder code and the recorded time The output relay coils are energised or de energised at the end of the execution of the ladder code during which the coil memory is changed The contacts will change approximately 5ms after the coil has been energised Otherwise time tags are generally to a resolution of Ims for events and to a resolution of 1s for the samples in disturbance records R8507D Service Manual Page 44 106 KAVR 100 6 SCHEME LOGIC KAVRIOO 01 software scheme logic is documented drawing number 08 KAVR100 01 sheets 1 to 11 Sheets 1 amp 2 list all the scheme logic elements accessible via the user interface sheets 3 to 9 document the logic in ladder diagram format and sheets 10 amp 11 list the factory default relay settings Another version of the logic diagram drawing number 08 KAVR100 00 sheets 1 to 11 is available on request with spaces for users to fill in details of settings when changed from the default values Drawing 08 KAVR100 00 sheets 1 to 9 are identical to 08 KAVR100 01 sheets 1 to 9 only sheets 10 11 are different KAVR100 02 software scheme logic is documented in drawing number 08 KAVR102 sheets 1 to 11 Sheets
60. 50ms Synchronism check elements Under LOGIC FUNCTIONS set Scheme Fn Links 1 to 0000001010001111 Under INPUT MASKS set INP Manual CB CI to 00010000 Under RELAY MASKS set RLY CB Close Sig to 00000010 Connect terminal 7 to terminal 47 Monitor output relay RL1 terminals 34 36 for all the following tests Service Manual R8507D KAVR 100 Page 83 106 8 7 1 8 7 2 8 7 3 8 7 4 Note that the relay password must be entered for every change of CSS Fn Links settings Phase angle check instantaneous operation Under LOGIC FUNCTIONS set Scheme Fn Links 2 00000000000001 00 Under CHECK SYNCH STGS set CSS Fn Links to 0000000000000001 Inject nominal voltage into V Line terminals 17 18 and V Bus terminals 19 20 starting with the phase angle between them less than CSS Phase Angle setting 3 Output RL1 should operate Slowly increase the phase angle until RL1 resets and note the angle when this happens This should be less than CSS Phase Angle setting 1 Slowly decrease the phase angle until re operates and note the angle when this happens This should be greater than CSS Phase Angle setting 3 Phase angle check delay on operation Under CHECK SYNCH STGS change CSS Fn Links to 0000000000000101 Set the phase angle between V Line and V Bus inputs greater than CSS Phase Angle setting so that output is reset Switch the phase angle to zero and measure the time for output RL1 t
61. 7 Auto reclose without protection 6 2 2 18 AR initiation with CB open 6 2 2 19 Maintained close pulse 6 R8507D Service Manual KAVR 100 2 3 Opto isolated Inputs 7 2 4 User Inputs 8 2 5 Output Relays 8 2 6 Control Outputs 9 2 7 Plant Status Output 9 2 8 Software Logic Functions 9 2 9 Timer Setting Ranges 13 2 10 Counters 13 2 10 1 Counter registers coils or resets 13 2 10 2 Counter targets Settings 14 2 10 3 Counter values messages 14 2 11 Alarms 14 2 11 1 Scheme Alarms 14 2 12 Scheme Event Records 15 2 12 1 K Bus messages to master station 16 2 12 2 Local EVENT RECORDS 16 2 13 Synchronism Check Voltage Monitor 16 2 14 Measurement 18 2 15 Alarms 19 2 15 1 Scheme alarms 19 2 15 2 Self monitoring alarms 20 2 15 3 Watchdog test feature 21 2 16 Password protection 21 2 17 Serial communication 21 2 17 1 Time tagged event records 21 2 17 2 Disturbance records 22 2 17 3 Remote control functions 22 2 17 4 Notes on serial port 22 2 17 5 Notes on security of remote control via the serial port 23 2 18 Model Variant KAVR100 02 23 3 EXTERNAL CONNECTIONS 25 3 1 Auxiliary supply 26 3 2 Opto isolated control inputs 26 3 3 Analog inputs 27 3 4 Output relays 27 3 5 Serial communication port K Bus 27 4 USER INTERFACE 28 4 1 Front plate layout 28 Service Manual KAVR 100 4 2 LED indications 4 3 Keypad 4 4 Liquid crystal display 5 MENU SYSTEM 5 1 Menu contents 5 1 1 SYSTEM DATA 5 1 2 USER CONTROLS SET 5 1 3
62. ASE LE SYSTEM LE SYSTEM SPLIT UNDER VOLTAGE DIFF VOLTAGE ABE E E Ladder Diagram Symbols Columns 1 6 N O Software contact which is closed when the named relay input is energised N C Software contact which is open when the named relay input is energised N O Software contact which is closed when the named software relay is operated Software contact which is open when the named software relay is operated N O Software link which is closed when the named software FNCT is set to 1 N C Software link which is open when the named software FNCT is set to 1 Node is energised when node L has been energised for specified time and de energised when L is de energised Node is energised when node L is energised and remains energised for specified time after node L is de energised Node is energised when node L changes from dead to live and remains energised for specified period irrespective of node L N O software contact which is closed when the named counter register is equal to the specified reference value N O software contact which is closed when the named counter register is greater than or equal to the specified reference value N O software contact which is closed when the named counter register is less than or equal the specified reference value N O software contact which is closed when the line VT inp
63. B L Live Voltage above which the line and bus are considered live 070C CSS V B L Dead Voltage below which the line and bus are considered dead 070D CSS Undervoltage Voltage below which undervoltage detector operates 070 CSS Diff Voltage If the difference between the incoming voltages exceeds this setting the difference voltage detector operates TIMER SETTINGS SET 0801 to 0810 Up to 16 user adjustable timer settings entered in the ladder Settings not entered will not be displayed Up to 16 characters of text to describe the timer and maximum and minimum limits to restrict the setting range of the timer can be entered The default setting range is 0 01 seconds to 9999 seconds COUNTER SETTINGS SET 0901 to 0910 Up to 16 counter settings entered in the ladder Settings not entered will not be displayed Up to 16 characters of text to describe the setting and maximum and minimum limits to restrict the setting range of the setting can be entered The default setting range is 1 to 9999 LOGIC FUNCTIONS SET Scheme Fn Links 1 Function links entered in ladder numbers to 15 02 Scheme Fn Links 2 Function links entered in ladder numbers 16 to 31 LOG Input Status State of inputs to the ladder diagram software after masking READ 0 04 LOG Output Status State of the outputs of the ladder diagram software before masking onto the output relays READ 0A05 LOG Default Dsply Selects the defaul
64. CHECK SYNCH STGS TIMER SETTINGS COUNTER SETTINGS LOGIC FUNCTIONS INPUT MASKS and RELAY MASKS When the final relay settings have been entered they should be noted on the commissioning test record sheet If K Bus communications are being used the master station PC can download settings to the relay record and save relay settings to disc and download saved settings to other relays When all external connections have been checked and final relay settings entered if system conditions permit an optional scheme test may be executed by manually operating the associated protection e g by injection testing and checking that the CB trips and auto recloses correctly subject to any required external checks such as CB gas pressure OK and or V Line and V Bus in synchronism This test should be by agreement with the end user Service Manual R8507D KAVR 100 Page 87 106 9 PROBLEM SOLVING 9 1 Password lost or not accepted Relays are supplied with the password set to AAAA Only upper case letters are accepted Password can be changed by the user See Section 5 2 There is an additional unique recovery password associated with the relay which can be supplied by the factory or service agent if given details of its serial number The serial number will be found in the system data column of the menu and should correspond to the number on the label at the top right hand corner of the frontplate of the
65. CONTROL OUTPUTS READ 5 1 4 EVENT RECORDS READ 5 1 5 MEASUREMENTS READ 5 1 6 COUNTER VALUES READ 5 1 7 ALARMS READ 5 1 8 CHECK SYNCH STGS SET 5 1 9 TIMER SETTINGS SET 5 1 10 COUNTER SETTINGS SET 5 1 11 LOGIC FUNCTIONS SET 5 1 12 INPUT MASKS PWP 5 1 13 RELAY MASKS PWP 5 1 14 RESET COUNTERS SET 5 1 15 RECORDER see also Section 5 3 5 2 Changing text and settings 5 2 1 Entering passwords in SYSTEM DATA column 0002 5 2 2 Changing passwords 5 2 3 Entering text 5 2 4 Changing function links 5 2 5 Changing setting values 5 2 6 Setting communication address 5 2 7 Setting input masks and relay masks 5 2 8 Resetting counter registers 5 2 9 Resetting values and records 5 2 10 Alarm records 5 2 11 Default display LCD 5 3 Disturbance recorders 5 3 1 Recorder control 5 3 2 Recorder capture 5 3 3 Recorder post trigger 5 3 4 Recorder logic triggers 5 3 5 Notes on recorded times SCHEME LOGIC 6 1 Ladder logic R8507D 28 29 29 30 31 31 33 34 34 34 34 34 34 36 36 36 37 37 37 37 38 38 39 39 39 39 39 40 40 40 40 41 41 42 42 42 42 42 44 44 85070 6 2 6 2 1 6 2 2 6 2 3 6 2 4 7 1 7 1 1 7 1 2 7 2 7 2 1 7 2 2 7 2 3 7 3 7 3 1 7 3 2 7 3 3 7 3 4 7 4 7 4 1 7 4 2 7 5 7 6 7 7 7 8 7 9 7 9 1 7 9 2 7 9 3 7 9 4 7 9 5 7 9 6 7 10 7 10 1 7 10 2 7 10 3 7 10 4 7 10 5 7 11 Ladder logic element identification Inputs O
66. INPROG PROTOP TRIPFAIL P5 RA PT R5 P7 Ri P6 R4 Wee DTSTART C B 1 DLLB P2 Ri P17 R4 DLDB 1 P17 R6 PROTOP C B 1 19 DEADTIME cso L 1 P1 R5 p g 13 p m FNCT 15 DEADTIME ITAUX o 1 OF P6 R4 P5 R2 C B 1 T CBMEM P2 RI P1263ENa Figure 10 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 50 106 Service Manual KAVR 100 PACE 7 NITAUX _ARINPROG DEADTIME SEQC 4 m D TIME umm S 1 DPU 4 BLOCKINS P5 R2 P5 RA PB R4 DTCOMP gt P7 RI LEFFBLK o dd D TIMES 28 R R4 3 BLOCKINS PROTOP T ES 7 d P7 R5 P1 R5 BLOCKINS BLOCKINS RLS P7 R5 INST INSTBLOC e gt GS INSTRIPS E input PAGE 8 ds 4 SEFLKINS FNCT 12 LOCKOUT MAINT 00 pim P12 R4 BLSEFINS PROTOP EFF MLEFFBLK PB R5 P1 R5 R4 BLSEFINS BLSEFINS WsTRIPS 119 R5 SEFINST SEFINSBL 5 lt EFINSTR 2512 input 14 CBCLOSED C B CBCLOSED CPELAPS CLOSECB PACE 9 CLOSEOK S Ed eia CBOLOSE
67. Increments fault trips counter for maintenance alarm lockout without initiating AR Cancel AR drive to lockout Reset scheme from lockout Not used in latest KAVR ladder logic Reset maintenance alarm lockout fault trips counter Omit first shot of selected program i e first reclose with dead time 2 Switch AR scheme logic in service Switch AR scheme logic out of service i Initiate AR SEF program provided Block SEF Instantaneous Trips not operated see Main Operating Features Instantaneous trips selector ii Prevent reclaim timer from timing when a fault is present waiting for time delayed trip Initiate AR SEF program trip repeat contact from protection 85070 8 106 2 4 2 5 Service Manual KAVR 100 User Inputs KAVR100 relay scheme logic includes seven inputs which are operated over K Bus or via the front plate user interface They are accessible in the USER CONTROLS menu column and are detailed below Display Name Effect in Scheme Logic USR Switch inSrv Switch AR scheme logic in service USR Sw outofServ Switch AR scheme logic out of service USR ResetLockout USR Reset MAlarm USR Dec MaintCnt USR Inc MaintCnt USR Res MaintCnt Output Relays Reset scheme from lockout Resets output mask RLY Maint Alarm even if maint counter is not reset Decrements RST Maint Countr by 1 See Counters Increments RST Maint Countr by 1 See Counters Resets RST Maint Countr
68. LOHNNOO i pne asvo Da 1 15012 OL 8 AONSNOAYS LINVS SS3OX NAS H i i HE NAS xoxo NOLO31IOHd LSNI 3OIAN3S JO 1n0 1n0 201 wd 35012 ed SS3H908d NI wi galvad Av Ide AHITV3H 9134 49 31 ia by 55 giy oe 19 Se S oc to e Sg e 3 9 e GdAL 8 9 TYNIWAIL Nid INO 790191 Z ILON CWNIWH31 SNOT 3 380438 AVIJIT STYNIWSSL LYOHS 123 02510 25 3 9 340438 nm g d HAMS TEES SANIT 1 5 712 o T 31UN a d zd NAS HO LISIHNI k 35 2 WHO31NI HLTA 3932 WON4 Q3AGIA i 91 SXOU18 TWNIWSSL pt l ns jf S7 NOLLO3IONd NON e 5 Cc 1 98 SS 82 24 NI em 71 35010 HO ES 92 252 lv D Fey oer 4 SS 1 d39NvH2 ONIMdS Ori 22 Sr v 1 ee Lor v 102 a niu ce D NOWWOO LAdNI 21907 ate oie 2 19 gt cs 21 NOWOSLOYNd NIVW 7 os ect A 9 gt ce 11 NOUO31ONd 1SNI co ut aU u 224 c cet gt E
69. N qos T hd 75 w o AS SB 5 TOOTS ON Ow anak bk RR e Cn A ox GT Cn 9 a 2 5 9 4 SCNGD Module terminal blocks viewed from rear Notes 1 a CT shorting links make before b and disconnect b e Short terminals break before e Long terminal 9 Pin terminal pcb type 2 Earth connections are typical only CB Aux switch AR Init prot A ph AR Init prot B ph Logic input common AR Init prot C ph CB spring charged air gas pressure Block AR from prot Reset lockout Manual CB close Logic input common 130 gt Relay healthy 901 76 980g 910684 gt Relay failed gt in progress CB close gt AR lockout out of service gt Sync ckeck OK Man CL gt Inhibit DEF CB pole discr gt Inhibit power swing blocking Enable 1 ph tripping gt CB trip Case earth K bus communications port 48V field voltage 001 85070 Service Manual Page 95 106 KAVR 100 39vL10A 01315 rar d 19404 SNOLNVOINDIWINOO 955 5 s 9 gt T NOL
70. NARFLT INCMCNT PROTCNT input 5 userin 6 PROTCNT M COUNT o P12 R2 Pa Ti COUNT MAIN 08 M LO DECMCNT M COUNT userin 5 P1265ENa Figure 12 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 52 106 Service Manual KAVR 100 PAGE 13 MAINT L O PAGE 14 EXCESSFF PAGE 15 TFAL EFFRS SETBLK MAINTLKT P13 R2 PROTCNT MAINT AINTEKT o H H RL5 P12 R2 P12 R4 FNCT 12 NTLOCKT C84 00 INCMCNT LE EEFCOUNT EFF userin 6 EXCESSFF RESETLO R3 P11 R6 EXFLTFRQ P14 R2 PROTCNT EFF EXFLTFRQ ro RLG P12 R2 P13 R4 FNCT 12 GlobeRst EXCESSFF e CS6 ARISM FNCT 20 MNTLOCKT LORESET COUNT e RES PA Ri 14 P13 R3 userin 2 RESMCNT userin 7 RESETMCT L input 9 PROTOP TRIPFAIL TRFALARM 5 6 RI C B 1 TRFALARM RESETLO LOCKOUTM P2 Ri P15 Ri P11 R6 P11 EFFCOUNT EFFCOUNT f T gt RES FNCT 17 apisq SETTINGS 8 11 P4 R1 RESETS OUTPUTS B P1266ENa Figure 13 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 Service Manual KAVR 100 R8507D Page 53 106 PAGE 16 COLD LOAD
71. NPROG PROTOP PS TRIPFAIL TRIPFAIL P5 R4 PI R3 P7 Ri P6 R4 DTSTART C B 1 DLLB P2 R1 P16 R4 DLDB 1 P16 R6 PROTOP CB 0700 P DEADTIME H cso P1 R3 1 3 7 Ri FNCT 15 DEADTIME ITAUX as OF P amp R4 P5 R2 CB 0 50 22 RI P1314ENa Figure 21 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 Service Manual KAVR 100 R8507D Page 61 106 PAGE 7 D TIME BLOCKINS PAGE 8 CBCLOSE PAGE 9 LOINIT CBFAIL P2 P9 RS INITAUX ARINPROG DEADTIME DTCOMP SEQCNT P5 R2 P5 RA P6 R4 DTCOMP T 2 DPU P7 R LEFFBLK SEQCNT MT vies J 3 DPU P1 R4 BLOCKINS PROTOP HE T a ae 4 DPU P7 R5 R3 BLOCKINS BLOCKINS P7 R5 INST INSTBLOC gt LCSS inpu INSTRIPS CLOSEOK CBCLOSE C 1 CBCLOSED CPELAPS CLOSECB RL1 P4 RA4 P8 R4 P2 P8 R4 PB R3 FNCT 13 B 1 CLOSECB TOTSHOTS INCE 0D P2 RI R1 MCLPREP FNCT 2 CPELAPS PE R6 02 CBCLOSED CBCLOSED PB R4 DTCOMP CBCLOSED C
72. PICKUP PAGE 17 LINE V INTERLOCKS PAGE 18 INSTENABL SUCC AR 6 ARINPROG C B 1 CBOPNMEM 06 P5 R4 P2 RI CBOPNMEM C B 1 COLDPKUP 216 R1 P2 659 ARINPROG NOHSAR INITAUX SEQGNT SEQCNT EXTRACNT e e 0 0 P5 Jinput 10 P5 R2 EXTRACNT sracwr SEQCNT INC P16 R4 PHASE CHECKSY ANGLE 19 LINELIVE o 13 PT7 R5 FNCT 21 CHECKSYN LINELIVE LINEVMEM pira ORO 15 PTB R6 P17 LINEVMEM INITOK P17 R2 ARISM 19 DHB LIVE BUS PARI 13 MONITOR ARINPROG LLDB 3 DEAD BUS 54 MONITOR DEADLINE DLOB DEAD BUS MONITOR COLDPKUP BLOCKINS ALLOWINS He RL12 P16 R2 P7 R5 BLSEFINS OKSEFINS IRL14 PB R5 1 ARCOK H H H 1 513 P2 R1 P20 R1 ARCOK AROK aL o RL15 PLS 18 MANCL FNCT 18 CHECKSY e input 4 12 P16 R6 FNCT 27 rsvsrEM MANSYNCH ANGLE 1B P1267ENa Figure 14 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 R8507D Service Manual
73. R 100 Drg No 08 KAVR 100 01 85070 64 106 Service Manual KAVR 100 PAGE 16 LINE V INTERLOCKS PAGE 17 INSTENABL SUCC AR PAGE 18 SYNCHECK VMON 2 19 LLDB LINELIVE 13 P16 R5 FNCT 21 CHECKSYN LINELIVE 15 P15 R6 16 RI LINEVMEM INITOK P16 R2 ARISM FNCT 19 INHCHSYN DEADLINE DLLB BUS eng MONITOR P4 1 13 input 12 ARINPROG a DEAD BUS MONITOR P5 R4 INHCHSYN DEADLINE DLDB DEAD BUS MONITOR input 12 COLDPKUP BLOCKINS ALLOWINS oH RL12 P15 R2 P7 R5 C B 1 RTIME ARCOK 6512 P2 RI P19 RI ARCOK 7 AROK Cabo 15 P17 R3 INHCHSYN FNCT 2 CHECKSY e eH T input 12 02 P15 R6 27 MANSYNCH ANGLE 1B FNCT 22 CHECKSYN DTCOMP ARCPREP 16 P15 R6 P7 RI FNCT 23 ANSYNCH MANSYNCH SYNCH o RL13 17 P16 R4 P17 R6 17 R6 FNCT 24 LLDB FNCT 28 DLLB iu 18 18 P16 R5 1C P16 12 FNCT 25 FNCT 28 LLB 1 19 P16 R6 1D P16 R5 FNCT 26 FNCT 30 DLDB 1A 1E P16 R6 FNCT 31 MANCL an pus P1318ENa Figure 25 Scheme logic diagram KAVR
74. andling the module outside its case 8 1 4 Inspection Carefully examine the module and case to see that no damage has occurred since installation and visually check the current transformer shorting switches in the case are wired into the correct circuit and are closed when the module is withdrawn Check the serial number on the module case and cover are identical and that the model number and rating information is correct Check that the external wiring is correct to the relevant relay diagram or scheme diagram The relay diagram number appears inside the case on a label at the left hand side The serial number of the relay also appears on this label the inside of the cover and on the front plate of the relay module The serial numbers marked on these three items should match the only time that they may not match is when a failed relay module has been replaced for continuity of protection Service Manual R8507D KAVR 100 Page 79 106 8 1 7 8 1 8 8 2 8 2 1 With the relay removed from its case ensure that the shorting switches between terminals 21 and 22 23 and 24 25 and 26 27 and 28 are closed by checking with a continuity tester Earthing Ensure that the case earthing connection above the rear terminal block is used to connect the relay to a local earth bar and where there is more than one relay the copper earth bar is in place connecting the earth terminals of each case in the same tier together Main current transf
75. angle element and system timer blocking the system angle element Phase Angle System Angle Operating Time 85070 102 106 Undervoltage element V Line Pick Up Drop Off VM inel Differential voltage element a Varying V Line V Line Low High Pick Up V Drop Off V b Varying V Bus V Bus Low High Pick Up LM Drop Off V 8 8 Voltage monitors 8 8 1 Dead line live bus monitor V Line V Bus 8 8 2 Live line dead bus monitor V Line V Bus Service Manual KAVR 100 V Bus V V Bus V V V Line V V Dead Line Live Bus Element tick Live Line Dead Bus Element tick Service Manual KAVR 100 8 8 3 Dead line dead bus monitor V Line Commissioning Engineer Date R8507D Page 103 106 Dead Line Dead V Bus Bus Element tick Customer Witness Date R8507D Service Manual Page 104 106 KAVR 100 12 KAVR100 SOFTWARE HISTORY KAVR10001x1xJEA gt xJEB June 1993 to Feb 1994 1 Original issue functional software 2 Operating system upgrade to 1 04 minor bug fix of op system software 3 Eliminate incorrect reclose following inst trip when blockins operates Allow SpCh and SynchCh window to time out fully even if gt reclaim time Issue Date SYS Software Ref SYS Ladder Ref June 1993 Op Sys 1 03 KAVRTOOEA 1 2 July 1993 5 1 04 1 2 October 1993 5 1
76. ay can be selected as the default display COUNTER VALUES READ 0500 to 0510 This column displays Counter Values messages see Section 2 10 ALARMS READ 0600 to 0610 This column displays all active Scheme see Section 2 11 If any alarms are enabled the alarm text will overwrite the default display CHECK SYNCH STGS SET Check synchronism settings Note This column is only visible if one or more check synchronism elements are entered in the ladder diagram 0701 CSS Fn Links Check synchronism function links PWP Link O Synccheck 1 enable check synchronism phase angle measurement Link 1 Slipfreq 1 enable slip frequency measurement if link O 1 Link 2 Sliptime 1 enable slip timer if link 1 Link 3 Splitdet 1 enable system split detector Link 4 Splittime 1 enable split timer if link 1 Service Manual KAVR 100 0702 0703 0704 0705 0706 0707 0708 0709 070A Link 5 Syscheck Link 6 Sysfreq Link 7 Systime Link 8 DLLB Link 9 LLDB Link A 10 DLDB Link B 11 UV Block Link C 12 UVOP Link D 13 DiffBLK Link E 14 DiffOP CSS VT Ratio CSS Phase angle CSS Slip Freq CSS Synch Timer CSS Split Angle CSS Split Timer CSS System Angle CSS System Slip CSS System Timer R8507D Page 35 106 enable system phase angle measurement enable system frequency measurement if link 5 1 enable slip timer if link 5 1
77. be read in all conditions of ambient lighting The numbers printed on the front plate just below the display identify the individual digits that are displayed for some of the settings i e function links relay masks etc R8507D Service Manual Page 30 106 KAVR 100 5 MENU SYSTEM Data within the relays is accessed via a MENU table The table is divided into columns and rows to form cells rather like a spreadsheet Each cell may contain text values limits and functions The first cell in a column contains a heading which identifies the data grouped on that column Col 1 LF LONG P2118ENa Figure 6 Menu system of relay Four keys on the front plate of the relay allow the menu to be scanned and the contents displayed on a two line by sixteen character liquid crystal display LCD The act of depressing any key will result in the LCD backlight being switched on The backlight will turn off again if a key is not pressed again within one minute The display will normally be the selected default setting and a momentary press of the function key F will change the display to the heading for the first column SYSTEM DATA Further momentary presses of the F key will step down the column row by row so that data may be read If at any time the F key is pressed and held for one second the cursor will be moved to the top of the next column and the heading for that column will be displayed Further momentary presse
78. be time tagged and saved into memory with a copy of the current contents of a specific counter register These scheme logic events are saved into memory arrays indexed by the event record number overwriting any previous data and an event flag is set to indicate which event has occurred The event bit in the communications status word is also set see under Serial communication Time tagged event records R8507D Service Manual Page 16 106 KAVR 100 2 12 1 2 12 2 The scheme event records be interrogated from two sources 1 Over K Bus when descriptive text time tag and counter value are transmitted on request for each event The relay software scans the event flags to determine which events have occurred transmits the appropriate data and finally resets the event flag when the master station sends an ACCEPT EVENT signal When all event flags have been cleared the event bit in the communications status byte is also cleared 2 the local user interface in the EVENT RECORDS menu column where descriptive text and the elapsed time and counter value change between two events is displayed Reading this event record does not affect the event flag or the event bit in the communications status byte Scheme event records in the KAVR100 relay are K Bus messages to master station Message text Associated data SEQUENCE START TOTAL Time tag and counter RST Total Reclose value RECLOSURES at start of last auto reclose c
79. c induced loop voltage gt 50V rms thermal limit Maximum capacitance coupled ac voltage gt 250V rms 0 1UF Contacts Output relays to 7 Type Rating Make and carry continuously Make and carry for 0 2s Break Watchdog Type Rating Make and carry continuously Make and carry for 0 2s Break Operation indicator 2 make contacts connected in series 5A 30A ac 1250VA with maxima of 5A and 300V dc 50W resistive 25W inductive L R 0 04s with maxima of 5A and 300V 1 make and 1 break 5A 10A ac 1250VA with maxima of 5A and 300V dc 30W resistive 25W inductive L R 0 04s with maxima of 5A and 300V 3 light emitting diodes internally powered 16 character by 2 line liquid crystal display with backlight Service Manual R8507D KAVR 100 Page 75 106 7 8 7 9 7 9 1 7 9 2 7 9 3 7 9 4 7 9 5 7 9 6 7 10 7 10 1 7 10 2 Communication port Language COURIER Transmission Synchronous EIA RS 485 voltage levels Frame format HDLC Baud rate 64kbit s K Bus cable Screened twisted pair K Bus cable length 1000m of cable K Bus loading 32 units multi drop system High voltage withstand Insulation 2kV rms for one minute between all terminals and case earth except terminal 1 2kV rms for one minute between terminals of independent circuits including contact circuits 1 5kV rms across open contacts of output relays O to 7 1 0kV rms for 1 minute across open contact
80. cessive fault frequency lockout AR scheme selected out of service CB failed to close when signal was applied Cold load pickup period following manual CB close AR cycle in progress from initiation to reset or lockout AR initiation temporarily inhibited following manual CB close Fast SEF trip function inhibited CB remained closed to end of reclaim time Plant Status Output Plant status output C B 1 controls bits and 1 of the SYS Plant Status word in cell 000 in the SYSTEM DATA menu column and indicates the position of the associated circuit breaker as determined from input mask INP CB AuxSwitch When the CB is closed SYS Plant Status bits amp 1 are amp 1 respectively When the CB is open SYS Plant Status bits amp 1 are 1 amp respectively No other plant status outputs are used in KAVR100 logic and SYS Plant Status bits 2 to F are always 0 Software Logic Functions KAVR100 scheme logic can be user configured to enable disable selected features as required for specific applications by setting scheme function links to or 1 Links are identified by 1 decimal numbering from FNCT to FNCT 31 in ladder logic diagrams and 85070 10 106 Service Manual KAVR 100 2 hexadecimal numbering in two sixteen bit words in LOGIC FUNCTIONS menu cells 1 and 0A02 Cell 0A01 Scheme Fn Links 1 bits O to F correspond to FNCT O to 15 Cell 0 02 Scheme Fn Links 2 bits
81. ddress 255 P1261ENa Figure 17 Relay settings KAVR 100 factory default settings Drg No 08 KAVR 10001 Service Manual KAVR 100 R8507D Page 57 106 Logic Inputs Control Outputs Ladder Name Display Name Menu Cell Ladder Name Display Name Menu Cell CBAUX INP CB Auxswitch 0 01 DEADTIME CTL DT in Prog 0201 Y Y INST INP Inst Protn 0 02 RECLTIME Rel in Prog 0202 Y Y Y MAINPR INP Main Protn LOCKOUT Lockout 0203 Y Y ENERGY INP Spring Charg 0804 MNTALARM Maint Alarm 0204 MANCL INP Manual CB CI 0805 MNTLOCKT MaintLockout 0205 Y NONARFLT INP Non AR protn 0806 INSTBLOC CTL Block InsPr 2060 Y Y BLOCK INP Block AR 0807 EXCESSFF Exc Fit Frq 0207 Y RESETLKT INP ResetLockout 0808 5 OutofService 0208 Y Y RESETMCT INP Reset M Cntr 0B09 CBFAILCL CLT CB Failclose 0209 Y Y Y INOHSAR INP Omit 1st Sht CLPU CLT CldLd Pickup 020A Y Y Y Y Y RSW IN INP Remsw Insrv 0 0 ARIP CLT ArinProgress 020B v v Y v RSW OUT INP Remsw Outsrv ARINHIB CLT ManCI AR Inh 020C Y Y Y Y INHCHSYN INP Inh Checksyn 0 00 AIR Success 0200 User Inputs Ladder Name Display Nam
82. e CHECK SYNCH STGS heading set to the values of the VTs the displayed measured values and settings will be in the equivalent primary quantities All measured values have a tolerance of 5 Opto input checks This test is to check that all the opto inputs are functioning correctly The state of the opto isolated input can be viewed from the SYS Opto Status display under the SYSTEM DATA heading If external equipment is connected to any of the opto input terminals this test can be used to check both the external wiring and correct operation of the external contact when the relevant equipment is operated For example the CB can be tripped and closed to check operation of the CB auxiliary contact connected to energise the opto input assigned to input mask INP CB AuxSwitch default mask setting to opto input LO If external equipment is not yet connected to all of the opto input terminals the unconnected opto inputs may be tested by individually connecting relay terminal 7 to the relevant opto input terminal listed below Opto Input Number Terminal LO 46 L1 48 L2 50 L3 45 14 47 L5 49 L 51 L7 53 85070 Service Manual Page 82 106 KAVR 100 8 6 8 7 The status of each opto input can be viewed by displaying SYS Opto Status which will be found towards the end of the SYSTEM DATA column of the menu When each opto is energised one of the characters on the bottom line of the display wi
83. e Menu Cell Y SWIN USR Switch 0101 Y SW OUT USR Sw OutofServ 0102 Y LORESET USR ResetLockout 0103 Y MARESET USR Reset MAlarm 0105 Y DECMCNT USR Maintcnt 0106 Y INCMCNT USR Inc Maincnt 0107 RESMCNT USR Res Maincnt 0108 P1321ENa Figure 18 Scheme Logic Diagram KAVR 102 No 08 KAVR102 01 R8507D Service Manual Page 58 106 KAVR 100 Output Relays Output Relays Ladder Name Display Name Menu Cell Ladder Name Display Name Menu Cell Y ARINPROG RLY A R in Prog 0 01 COLDPKUP RLY C Ld Pickup 0 09 Y CLOSECB RLY CB Close Sig 002 ARLCKT RLY A R Lockout ARAVAIL RLY AR Available 0003 INHIBIT RLY ManCl AR Inh Y Y BLOCKINS RLY Block InstPr 0 4 OUTSRV RLYOutofService Y Y MAINTALM RLY Maint Alarm 0 05 ALLOWINS Rly Enable Inst OCOD Y MAINTLKT RLY MaintLockout 0 6 SYNCH RLY CheckSyn OK 0 EXFLTFRQ RLY Exc Fit Frq 0007 NOSYNCH RLY CHSyn Failed Y Y CBFAIL RLY CD Failclose 0 08 AROK RLY A R Success 10 Counter Registers Ladder Name Display Name Menu Cell M COUNT RST Maint Countr 0001 Y RST Total Reclos 0002 Y v Y ISEQCNT RST Sequence Cnt 0D09 Y EFFCOUNT RST ExFitFrq ODOA Counter Settings Test Ta
84. e after manual CB close D disable unconditional timed auto reset from lockout D 1 enable unconditional timed auto reset from lockout Service Manual KAVR 100 Logic FNCT number 9 Logic FNCT number 16 Scheme Fn Links 1 bit no 9 Scheme Fn Links 2 bit no 0 Display Name AUTO RES LCK EX FLT FRQ M LCK ML EFF BLOCKINST FULL CL PLS RC TIM RUN ON STDT CB TR Display Name HSAR NO SC NO SET IN SERV MCL CS R8507D Page 11 106 Effect in scheme logic disable timed auto reset from lockout following manual CB close enable timed auto reset from lockout following manual CB close D excessive fault freq logic disabled D 1 excessive fault frequency logic enabled maintenance lockout logic disabled D 1 maintenance lockout logic enabled when ML O amp enabled gives Block Inst output when target is reached then lockout at next trip i e target 1 D 1 maintenance lockout or EFF lockout when enabled immediate when target is reached CB close output off when CB closes 2 1 CB close output maintained for set TMR Close Pulse time reclaim time suspended when INP Inst Protn is on D 1 reclaim time runs even if INP Inst Protn is on dead time start when CB tripped AND protection reset D 1 dead time starts when CB trips without reference to protection
85. e auxiliary powered relays In addition the memory of the relay is checked for possible corruption of data and any detected errors will result in an alarm being generated An ALARM LED indicates several states which can be identified by viewing the alarm flags that are to be found in the SYSTEM DATA column of the menu and consist of seven characters that may be either 1 or 0 to indicate the set and reset states of the alarm The flags offer the following indications Bit position 76543210 Unconfig relay not operational needs to be configured Uncalib relay is running uncalibrated calibration error Setting relay is running possible setting error No Service relay is out of service No Samples relay not sampling No Fourier relay not performing fourier Scheme Alarm see the scheme alarms column or default display Test Watchdog When any of the above alarms occurs an event is generated at the master station If more than one alarm occurs at the same time only the lowest bit position will be sent as the event For the above self monitoring alarms the AMBER ALARM LED will be continuously lit the alarm bit will be set in the STATUS word as a remote alarm and the watchdog relay will operate However there is another form of alarm that causes the AMBER ALARM LED to flash and this indicates that the password has been entered to allow access to change protected settings within the relay and
86. e oldest record is overwritten and records are deleted if the auxiliary supply to the relay is removed This ensures that when the buffer is read the contents will all be valid The disturbance recorder is stopped and the record frozen a set time after a selected trigger has been activated For example a protection trip command could be the selected trigger and the delay would then set the duration of the trace after the fault Each sample has a time tag attached to it so that when the wave form is reconstituted it can be plotted at the correct point against the time scale thus ensuring that the time base is correct and independent of the frequency The K Series relays measure eight samples per cycle but the method of recording allows the analysis program to perform with records that may have a different sample rate The disturbance records can only be accessed via the serial communication port Remote control functions Control functions that affect the relay and that can be performed over the serial link include the change of individual relay settings and functions in the scheme logic that are defined in the ladder diagram Notes on serial port Each relay in the K Series has a serial communication port configured to K Bus Standards K Bus is a communication interface and protocol designed to meet the requirements of communication with protective relays and transducers within the power system substation environment has to be as reliable
87. e reset even if the counter has not been reset by activating user control cell USR Reset MAlarm This output is purely for indication and does not initiate a lockout When Maintenance Lockout MLO is enabled by setting FNCT 11 1 output mask RLY MaintLockout and control status flag CTL MaintLockout operate when the fault trips counter reaches the CNS MaintLockout target setting The MLO output remains set until the counter is reset see above and forces a scheme lockout Temporary inhibit after manual CB close The relay logic can be configured by software function link settings such that auto reclose initiation is inhibited for a short period timer setting TMR ManCl AR Inh following manual closure of the circuit breaker and or following initial energisation of a previously dead line This is to prevent auto reclosure in the event of manual CB closure onto a pre existing fault switch on to fault Line dead or live status is derived from voltage comparator elements in the synchronism check voltage monitor logic Cold load pick up When enabled by software function link selection this feature operates output mask RLY C Ld Pickup which may be assigned to an output relay if required to block selected protection for a period equal to TMR C Ld Pickup setting following manual CB closing Excessive fault frequency lockout When enabled by software function link selection this feature locks out auto reclosing and operates
88. ed to relays these may present a risk of electric shock or burns if touched Battery replacement Where internal batteries are fitted they should be replaced with the recommended type and be installed with the correct polarity to avoid possible damage to the equipment Insulation and dielectric strength testing Insulation testing may leave capacitors charged up to a hazardous voltage At the end of each part of the test the voltage should be gradually reduced to zero to discharge capacitors before the test leads are disconnected Insertion of modules and pcb cards These must not be inserted into or withdrawn from equipment whist it is energised since this may result in damage muere Fibre optic communication Where fibre optic communication devices are fitted these should not be viewed directly Optical power meters should be used to determine the operation or signal level of the device OLDER PRODUCTS Electrical adjustments Equipments which require direct physical adjustments to their operating mechanism to change current or voltage settings should have the electrical power removed before making the change to avoid any risk of electrical shock Mechanical adjustments The electrical power to the relay contacts should be removed before checking any mechanical settings to avoid any risk of electric shock Draw out case relays Removal of the cover on equipment incorporating electromechanical operating elements
89. ements of each application by enabling those features which are required and disabling those features which are not required Settings changes in or out of service If Scheme Fn Links 2 bit 1 is set to 1 the scheme has to be switched out of service Auto reclose Off to enable settings changes to be made If Scheme Fn Links 2 bit 1 is set to O settings changes can be made with the scheme in or out of service Input mode selection The relay logic for the following input masks can be suitably configured for either normally open or normally closed external contacts by software function link settings see section 2 8 below INP AuxSwitch R8507D Service Manual Page 4 106 KAVR 100 NP Spring Charg INP Block AR 22 5 Line and bus voltage check before closing A wide range of system checks synchronism check dead line live bus etc selected by function link settings can be applied to auto reclosing and to manual circuit breaker closing if requested by input mask INP Manual CB Cl Please refer to sections 2 8 and 2 13 below 2 2 6 Instantaneous trips selector A Block Instantaneous Trips output can be arranged to block the trip function of non discriminating protection such as low set instantaneous OC or EF protection or distance protection operating with Zone 1 extension before the final reclosure to ensure that the final trip to lockout for a persistent fault is made by discriminating protection
90. ernal connection to the serial port is discussed fully in the service manual for communications The remainder of the manual deals with installation commissioning and mainetance of the relay RELAYS COVERED BY THIS MANUAL KAVR 100 Combined autoreclose and check synchronism relay Standard model KAVR 100 01 and variant KAVR 100 02 R8507D Service Manual KAVR 100 Service Manual R8507D KAVR 100 CONTENT HANDLING OF ELECTRONIC EQUIPMENT SAFETY INSTRUCTIONS PURPOSE OF THIS MANUAL RELAYS COVERED BY THIS MANUAL 1 HANDLING AND INSTALLATION 1 1 1 General considerations 1 1 1 1 Receipt of relays 1 1 1 2 Electrostatic discharge ESD 1 1 2 Handling of electronic equipment 1 1 3 Relay mounting 2 1 4 Unpacking 2 1 5 Storage 2 2 DESCRIPTION 3 2 1 Application and basic operating sequence 3 2 2 Main operating features 3 2 2 1 Selection in and out of service 3 2 2 2 Selectable options via software function links 3 2 2 3 Settings changes in or out of service 3 2 2 4 Input mode selection 3 2 2 5 Line and bus voltage check before closing 4 2 2 6 Instantaneous trips selector 4 2 2 7 Maintenance Alarm and Lockout 4 2 2 8 Temporary inhibit after manual CB close 5 2 2 9 Cold load pick up 5 2 2 10 Excessive fault frequency lockout 5 2 2 11 Line voltage interlock 5 2 2 12 Reset from lockout 5 2 2 13 Omit first shot 6 2 2 14 Successful auto reclose indication 6 2 2 15 CB failed to close alarm 6 2 2 16 Fault not cleared alarm 6 2 2 1
91. ess to the rear of the equipment care should be taken by all personnel to avoid electrical shock or energy hazards Voltage and current connections should be made using insulated crimp terminations to ensure that terminal block insulation requirements are maintained for safety To ensure that wires are correctly terminated the correct crimp terminal and tool for the wire size should be used Before energising the equipment it must be earthed using the protective earth terminal or the appropriate termination of the supply plug in the case of plug connected equipment Omitting or disconnecting the equipment earth may cause a safety hazard The recommended minimum earth wire size is 2 5mm unless otherwise stated in the technical data section of the product documentation Before energising the equipment the following should be checked Voltage rating and polarity CT circuit rating and integrity of connections Protective fuse rating Integrity of earth connection where applicable Remove front plate plastic film protection Remove insulating strip from battery compartment EQUIPMENT OPERATING CONDITIONS The equipment should be operated within the specified electrical and environmental limits Current transformer circuits Do not open the secondary circuit of a live CT since the high level voltage produced may be lethal to personnel and could damage insulation External resistors Where external resistors are fitt
92. ets and note the V Bus V Line value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly reduce V Bus until RLI re operates and note the V Bus value when this happens This should be within 10 and 096 of the V Bus value when reset in the last test Voltage monitor elements Dead line live bus monitor Under CHECK SYNCH STGS change CSS Fn Links to 000001 1100000000 Under LOGIC FUNCTIONS change Scheme Fn Links 2 to 0001000000000000 Adjust V Line and V Bus values and check that output RL1 operates and resets in line with the following table V Line value V Bus value RL1 state CSS V B L Dead 2V CSS V L B Live 2V Operated CSS V B L Dead 2V CSS V L B Live 4 2V Reset CSS V B L Dead 2V CSS V L B Live 2V Reset Live line dead bus monitor Under LOGIC FUNCTIONS change Scheme Fn Links 2 to 0010000000000000 Adjust V Line and V Bus values and check that output RL1 operates and resets in line with the following table R8507D Service Manual Page 86 106 KAVR 100 V Line value V Bus value RL1 state CSS V B L Live 2V CSS V L B Dead 2V Operated CSS V B L Live 2V CSS V L B Dead 2V Reset CSS V B L Live 2V CSS V L B Dead 2V Reset 8 8 3 Dead line dead bus monitor 8 9 Under LOGIC FUNCTIONS change Scheme Fn Links 2 to 0100000000000000 Adjust V Line and V Bus values and check that output operates and resets in line with the following table
93. etting step 0 5V Operates at 5 of setting Resets at gt 98 of operate value Dead voltage Setting range 5 5V to live voltage setting Setting step 0 5V Operates at 5 of setting Resets at lt 104 of operate value Note The live voltage setting cannot be set to less than the dead voltage setting and the dead voltage setting cannot be set to greater than the live voltage setting 7 33 Measurement displayed Voltage Vin x VT ratio for V Line and V Bus Phase angle 180 Angle between V Line and V Bus System frequency 45 65Hz Frequency of V Line Slip frequency 32Hz Difference in frequency between V Line and V Bus 7 3 4 Ratios VT ratios 1 1 to 9999 Default 1 1 7 4 Accuracy 7 4 1 General for reference conditions Ambient temperature 20 C Frequency 50Hz or 60Hz whichever set Auxiliary voltage 24V to 125V aux powered 48V to 250V aux powered Auto reclose timers x 0 5976 The operating time for scheme logic functions is also affected by The input sampling time 5 8 x system period The number of executions of the ladder code needed to perform the function An execution occurs every 10ms The time for an output relay to close its contacts typically 5ms Undervoltage detector Operation 5 of the set value Reset 10596 of operation Differential voltage detector Operation 5 of the set value Service Manual R8507D KAVR 100 Page 73 106 Reset gt 97 of operation Phase angle and syste
94. f the execute command the new setting is checked against the limits stored in the relay before they are entered Only then does the relay respond to the new setting All remote commands are reflexed back to the master station for verification before they are executed and any command left set is automatically rejected if not executed within the time out period No replies are permitted for global commands as this would cause contention on the bus instead a double send is used for verification purposes with this type of command Remote control is restricted to those functions that have been selected in the relay s menu table and the selection can not be changed without entering the password CRC and message length checks are used on each message received No response is given for received messages with a detected error The master station can be set to retransmit a command a set number of times if it does not receive a reply or receives a reply with a detected error Model Variant KAVR100 02 Model variant KAVR10002 has slightly different functionality from the standard KAVR10001 The variant was developed to meet the special requirements of TNB Malaysia but might be appropriate in some other situations The deviations from the standard model are described below 1 Logic Inputs Input Mask SEFINST INP Inst SEF is replaced by a new mask INHCHSYN INP CheckSyn Input mask SEF INP Sensitive RF is deleted 2 Output Relays Relay mask
95. ged by this method If a portable PC is available together with a K Bus interface unit and the commissioning software then the menu can be viewed a page at a time to display a full column of data and text Settings are also more easily entered and the final settings can be saved to a file on a disk for future reference or printing a permanent record The instructions are provided with the Courier Access software Quick guide to local menu control With the cover in place only the F and 0 push buttons are accessible so data can only be read or flag and counter functions reset No settings can be changed In the table F long indicates that the key is pressed for at least 1 second and F short for less than 0 5 second This allows the same key to perform more than one function 8 1 1 1 With the cover fitted to the case Current Display Key Press Effect of Action Default display or F short Display changes to next item in list if any Scheme alarm s available F long Display changes to first menu column heading SYSTEM DATA 0 short or Backlight turns ON 0 long Column Heading 0 short Backlight turns ON 0 long Returns to the selected default display or scheme alarms without waiting for the 2 minute delay Anywhere in menu F short Displays the next item of data in the column F long Displays the heading for the next column 0 short Backlight turns ON 0
96. h on the backlight the heading SYSTEM DATA will be displayed Use the amp keys or a long F key press to select the column containing the setting or text cell that is to be changed Then with the F key step down the column until the contents of the cell are displayed Press the or key to put the relay into the setting mode which will be indicated by a flashing cursor on the bottom line of the display If the cell is a read only cell then the cursor will not appear and the relay will not be in the setting mode To escape from the setting mode To escape from the setting procedure without effecting any change hold the 0 key depressed for one second The original setting will be retained To accept the new setting Press the F key until the display reads Are You Sure YES Press the 0 key if you decide not to make any change Press the key if you want to further modify the data before entry Press the to accept the change This will terminate the setting mode 5 2 1 Entering passwords in SYSTEM DATA column cell 0002 The amp keys can be used to select a character at the position of the cursor When the desired character has been set the F key can be given a momentary press to move the cursor to the position for the next character The process can then be repeated to enter all four characters that make up the password When the fourth character is acknowledged by a momentary press
97. he U shaped terminal supplied and which has to be secured with a self tapping screw in the hole in the terminal block just below terminal 56 Operation has been tested up to 1 000 metres with cable to DEF Standard 16 2 2c 16 0 2mm dia 40 per R8507D Service Manual Page 28 106 KAVR 100 4 1 4 2 171pf m core core 288pf m core screen The minimum requirement to communicate with the relay is a K Bus IEC 60870 5 converter box Type KITZ101 and suitable software to run on an IBM or compatible personal computer USER INTERFACE The interface provides the user with a means of entering settings to the relay and of interrogating the relays to retrieve recorded data Front plate layout Model number Relay types KAVR13001L12JEE No P96770 i Serial number crystal display LED indicators un Digit identifiers Entry keys Ratings 110 125 50 60 P2117ENb Figure 5 Front plate layout The front plate of the relay carries an identification label at the top corner This identifies the relay by both its model number and serial number This information is required when making any enquiry to the factory about a particular relay because it uniquely specifies the product In addition there is a rating label in the bottom corner which gives details of the auxiliary voltage rating Two handles one at the top and one at the bottom of the
98. he scheme logic Please refer to Section 2 5 Output relays Each cell in the RELAY MASKS column displays on the top line the defined display name for the associated output function and on the bottom line a series of 1 s and O s for the selected mask The numbers printed on the front plate under the display indicate which output relay RLY7 to RLYO is associated with each bit 1 indicates that the particular output relay will operate when the selected logic output operates and indicates that it will not RESET COUNTERS SET 0001 to 0010 This column displays counter registers see Section 2 10 Any displayed counter can be reset to zero RECORDER see also Section 5 3 0 01 control RUNNING TRIGGERED STOPPED SET 0 02 REC Capture SAMPLES MAGNITUDE PHASE SET 0 03 REC Post Trigger Trace length after trigger SET 0 04 REC Trig Select ladder recorder trigger to trigger when turned on SET Not available in KAVR100 0 05 REC Trig OFF Select ladder recorder trigger to trigger when turned off SET Not available in KAVR100 R8507D Service Manual Page 38 106 KAVR 100 5 2 Changing text and settings To enter the setting mode Settings and text in certain cells of the menu can be changed via the user interface To do this the cover must be removed from the front of the relay to gain access to the amp keys Give the F key a long press to change from the selected default display and switc
99. heck for correct functioning of the relay Alarms The alarm status LED should first be checked to identify if any alarm conditions exist The alarm records can then be read to identify the nature of any alarm that may exist Measurement accuracy The values measured by the relay can be compared with known system values to check that they are in the approximate range that is expected If they are then the A D conversion and calculations are being performed correctly Output relay test The output relays can be made to change state if the password has been entered using menu cells LOG TEST RELAYS Select 0 07 and LOG TEST RELAYS 0 0A08 The LOG TEST RELAYS Select cell displays the relays to be tested Setting any position to 1 will result in the state of the corresponding relay changing state when the 0 key is given a long press in cell LOG TEST RELAYS 0 The state will remain changed for 250 milliseconds or until the 0 key is released whichever is longer Additional tests Additional tests can be selected from the commissioning instructions Section 8 as required Method of repair Please read the handling instructions in Section 1 before proceeding with this work This will ensure that no further damage is caused by incorrect handling of the electronic components Replacing a PCB a Replacement of user interface Withdraw the module from its case Remove the four screws that are placed one at each corner of
100. hould be read before commencing any work on the equipment Health and safety The information in the Safety Section of the product documentation is intended to ensure that products are properly installed and handled in order to maintain them in a safe condition It is assumed that everyone who will be associated with the equipment will be familiar with the contents of the Safety Section Explanation of symbols and labels The meaning of symbols and labels may be used on the equipment or in the product documentation is given below Caution refer to product documentation Caution risk of electric shock E Protective safety earth terminal Functional earth terminal Note This symbol may also be used for a protective safety earth terminal if that terminal is part of a terminal block or sub assembly e g power supply NOTE THE TERM EARTH USED THROUGHOUT THE PRODUCT DOCUMENTATION IS THE DIRECT EQUIVALENT OF THE NORTH AMERICAN TERM GROUND INSTALLING COMMISSIONING AND SERVICING Equipment connections Personnel undertaking installation commissioning or servicing work on this equipment should be aware of the correct working procedures to ensure safety The product documentation should be consulted before installing commissioning or servicing the equipment Terminals exposed during installation commissioning and maintenance may present a hazardous voltage unless the equipment is electrically isolated If there is unlocked acc
101. ion PWP This is text that describes the relay type for example Auto reclose is password protected and can be changed by the user to a name which may describe the scheme configuration of the relay if the relay is changed from the factory configuration 0005 SYS Plant Ref PWP The plant reference can be entered by the user but it is limited to 16 characters This reference is used to identify the primary plant that the relay is associated with 0006 SYS Model No READ The model number that is entered during manufacture has encoded into it the mechanical assembly ratings and configuration of the relay lt is the same as the model number printed on the front plate and this number should be quoted in any correspondence concerning the product 0007 SYS Firmware Number READ The version of software and memory components is coded into this number It can not be changed 0008 SYS Serial Number READ The serial number is the relay identity and encodes also the year of manufacture It can not be changed from the menu 0009 SYS Frequency SET The set frequency from which the relay starts tracking on power up It also controls the sampling frequency of the opto inputs so should be set to the system frequency even for a KVTR Service Manual R8507D KAVR 100 Page 33 106 5 1 2 000 SYS Communication Level READ This cell will contain the communication level that the relay will support It is used by Master Statio
102. language and protocol used for communication is Courier It has been especially developed to enable Generic Master Station Programs to access many different types of relay without continual modification to the Master Station Program The relays form a distributed data base for the Master Station and may be polled for any information required This includes 1 Measured values Menu text Settings and setting limits Event records Disturbance records Plant status LOR ME ee 28 Control status a 16 bit word wherein the individual bits are assigned in the ladder diagram 8 Status an eight bit word that identifies the trip and alarm state busy state also the presence of event and disturbance records for collection Time tagged event records An event may be a change of state of an opto input or an output relay a setting that has been changed locally or it may be one of up to 16 changes assigned in the ladder see Section 2 12 A total of 50 events may be stored in a buffer each with an associated time tag The time tag is the value of a timer counter that is incremented every 1 millisecond The event records can be accessed via the serial communication port when the relay is connected to a suitable master station When the relay is not connected to a master station the event records can still be extracted within certain limitations 1 The event records can be read via the serial communication port and a K Bus IEC
103. ll change to indicate the new state of the inputs The number printed on the front plate under the display will identify which opto each character represents A 1 indicates an energised state and a 0 indicates a de energised state Note The opto isolated inputs may be energised from an external 50V battery in some installations Check that this is not the case before connecting the field voltage otherwise damage to the relay may result Output relay checks This test is to check that all the output relays are functioning correctly The output relays to be tested can be set in the LOG TEST RELAYS Select cell under the LOGIC FUNCTIONS heading and tested in the next cell LOG TEST RELAYS 0 The output relays can then be individually tested by monitoring the relay terminals listed below Output relay number Terminals 0 30 32 1 34 36 2 38 40 3 42 44 4 29 31 5 33 35 6 37 39 7 41 43 The procedure for testing the output relays is 1 Enter the relay password 2 Go to the LOG TEST RELAYS Select cell Set the character on the bottom line of the display corresponding to each relay to be tested to 1 and all not to be tested to O 3 Go to the LOG TEST RELAYS 0 cell Press the 0 key and the selected relay s will change state for as long as the key remains pressed If these operations are performed using the master station the relays will change state for approximately 2
104. m see the scheme alarms column or default display Test Watchdog For the alarms listed above with the exception of the Scheme Alarm the amber alarm LED will be continuously lit However there is another form of alarm that causes the ALARM LED to flash and this indicates that the password has been entered to allow access to change protected settings within the relay This is not generally available as a remote alarm and the alarm flags do not change For LED indications for Scheme Alarms please see Section 2 11 No control will be possible via the key pad if the Unconfigured alarm is raised because the relay will be locked in a non operate state Default display LCD The LCD changes to a default display if no key presses are made for 15 minutes The default display can be selected to any of the options listed in Section 5 1 11 LOGIC FUNCTIONS location 0 05 by following the setting procedure given in Section 5 2 5 The display can be returned to the default value without waiting the 15 minute delay by selecting any column heading and then holding the 0 reset key depressed for 1 second When a scheme alarm occurs the display changes automatically to display the alarm text All alarms must be cleared and if necessary the Reset Alarms cell reset as described in Section 2 11 before the relay returns to the selected default display Disturbance recorders The disturbance recorder may be triggered by several different methods dependen
105. m angle measurement Operation setting 3 0 Resets operate value 0 3 Slip frequency and system slip frequency Operation setting 0 010Hz Reset setting 0 010Hz Split angle measurement Operation setting 3 0 Resets operate value 3 0 Check synchronism timers All timers 0 5 O to 40ms Live voltage monitor Operation 5 of the set value Reset 9896 of operation Dead voltage monitor Operation 5 of the set value Reset 10496 of operation Measurements Voltage 5 of reading 1 Vn typical Frequency 45 65Hz 5 of reading 1 Fn typical Phase angle 0 5 typical 7 4 2 Influencing quantities Ambient temperature Operative range 25 C to 55 C Voltage settings 0 03 per 1 Angle measurement 2 Frequency Operative range 46 to 65Hz Voltage settings 1 Operation times 1 Angle measurement lt 1 Auxiliary supply Nominal Operative range 24 125V 19 to 150V a 50 to 133V ac a 48 250V 33 to 300V dc 87 to 265V ac a powered powered aux powered powered Voltage settings 0 5 R8507D Page 74 106 7 5 7 6 7 7 Service Manual KAVR 100 Operation times 0 596 Angle measurement 9 57 Opto isolated control inputs Capture time 12 5 2 5ms at 50Hz 10 4 2 1ms at 60Hz Release time 12 5 2 5ms at 50Hz 10 4 2 1ms at 60Hz Maximum series lead resistence 5ky 2 optos in parallel Maximum a
106. measured magnitude of the incoming line volts is greater than the CSS V B L Live setting The dead line dead bus comparator gives an output to the scheme logic provided 1 itis enabled by setting CSS Fn Links bit A to 1 AND 2 the measured magnitudes of BOTH the incoming line and bus volts are less than the CSS V B L Dead setting Measurement Measurements are only available in relays including check synchronism features KAVS and KAVR These relays have two voltage transformers for measuring line and busbar voltages Measurement is based on the Fourier derived value of the power frequency component of current and harmonics up to and including the 6th are suppressed The 7th harmonic is the first predominant harmonic and this is attenuated by a factor of 3 also higher harmonics are further progressively attenuated by the anti aliasing filter This feature eliminates the need for third harmonic rejection filters in the circuits of sensitive earth fault relays The frequency response is further enhanced by frequency tracking the measured signal over a range of 45Hz to 65Hz 1 Fn when non frequency tracking 45 F 65Hz when frequency tracking Fourier filter response Anti aliasing filter response Harmonic P2113ENa Figure 1 Response of Fourier filtering Service Manual R8507D KAVR 100 Page 19 106 2 15 2 15 1 With frequency tracking the sampling rate of the A D conversion is adjusted to match
107. mes per cycle on each channel as the sampling rate tracks the frequency of the input signal The wide setting range provided is sufficient to enable the relays to operate over the voltage range 5V to 132V Thus the same relay can be connected phase to phase or phase to neutral Output relays There are four programmable output relays on the microprocessor board and four on the auxiliary expansion board These relays each have two make contacts connected in series to increase their rating The functions to which these relays respond are selectable via the menu system of the relay In addition there is a watchdog relay which has one make and one break contact Thus it can indicate both healthy and failed conditions As these contacts are mainly used for alarm purposes single contacts are used and their rating is therefore not quite as high as that of the programmable outputs The terminal numbers for the output relay contacts are given in the table at the start of Section 3 P2116ENa Figure 4 Terminal arrangement for communications Serial communication port K Bus Connection to the K Bus Port is by standard Midos 4mm screw terminals or snap on connectors A twisted pair of wires is all that is required the polarity of connection is not important It is recommended that an outer screen is used with an earth connected to the screen at the Master Station end only Termination of the screen is effected with t
108. mits and or a function The cells are referenced by the column number row number For example 0201 is column 02 row 01 The full menu is given in the following notes but not all the items will be available in a particular relay Those cells that do not provide any useful purpose are not made available in the factory configuration to avoid the confusion that would occur in deciding what values to set them to In a similar way certain settings will disappear from the menu when the user de selects them The menu cells that are read only are marked READ Cells that can be set are marked SET Cells that can be reset are marked RESET Cells that are password protected are marked PWP SYSTEM DATA 0002 SYS Password Password PWP 0003 SYS Fn Links Function Links PWP LINK O SYS Rem ChgStg 1 Enable remote setting changes LINK 7 SYS En Log Evts 1 Enable all event records to be stored 0004 SYS Description Description or user scheme identifier PWP 0005 SYS Plant Ref User plant location identifier PWP 0006 SYS Model No Model number READ 0007 SYS Firmware No Firmware Number READ 0008 SYS Serial No Serial number READ 0009 SYS Frequency Frequency SET 000 SYS Comms Level Communication level READ 000B SYS Rly Address Communication address SET 000 SYS Plant Status Plant Status READ 0000 SYS Ctrl Status Control Status READ 0011 SYS Software Ref
109. n due to induced a c signals in the external wiring KAVR100 scheme logic has fifteen functional logic inputs The inputs required for any specific application are selected by setting INPUT MASKS to assign one or more opto inputs to each required logic input Although most selections are one to one parallel mask settings are possible A single opto input can activate more than one logic input and a single logic input may be activated by more than one opto input The available functional logic inputs are described below The default mask settings are listed in scheme logic diagram drg no 08 KAVR100 01 Display Name INP CB AuxSwitch INP Inst Protn INP Main Protn INP Spring Charg INP Manual CB Cl INP Non AR Protn INP Block AR INP ResetLockout INP Reset Indication INP Reset M Cntr INP Omit 1st Sht INP RemSw Inserv INP RemSw Outsrv INP Inst SEF INP Sensitive EF Effect in Scheme Logic CB status indication open closed i Initiate AR provided Block Instantaneous Trips not operated see Main Operating Features Instantaneous trips selector ii Prevent reclaim timer from timing when a fault is present waiting for time delayed trip Initiate AR trip repeat contact from protection CB stored energy e g closing spring and or gas pressure indication charged not charged Initiate CB closure with selected system check conditions for manual CB close See section 2 8 FNCT 27 to 31 and 2 13
110. n programs to decide what type of commands to send to the relay 000 SYS Relay Address SET An address between 1 and 254 that identifies the relay when interconnected by a communication bus These addresses may shared between several communication buses and therefore not all these addresses will necessarily be available on the bus to which the relay is connected The address can be manually set Address 0 is reserved for the automatic address allocation feature and 255 is reserved for global messages The factory set address is 255 000 SYS Plant Status READ Plant status is a 16 bit word which is used to transport plant status information over the communication network The various bit pairs are pre allocated to specific items of plant 0000 SYS Control Status READ The control status word acts like software contacts to transfer data from the relay to the master station controlling communications In autoreclose relays the function of each bit is defined in the ladder diagram and a description of the function of the bit is entered The description will be displayed in the CONTROL OUTPUTS menu column along with its state ON or OFF 0011 SYS Software Ref READ The version of operating system software is coded into this number It can not be changed 0012 SYS Ladder Ref READ The version of ladder diagram software is coded into this number It can not be changed 0020 SYS Opto Status READ Displays the status of
111. nce record Post trigger set to maximum value and so missing the event When a master station has successfully read a record it will clear it automatically and the disturbance record bit in the status byte will then be set to O to indicate that there are no longer a record to be retrieved Communications Address cannot be automatically allocated if the remote change of setting has been inhibited by function link SDO This must be first set to 1 alternatively the address must be entered manually via the user interface on the relay Address cannot be allocated automatically unless the address is first manually set to O This can also be achieved by a global command including the serial number of the relay Relay address set to 255 the global address for which no replies are permitted R8507D Service Manual Page 90 106 KAVR 100 9 5 1 Measured values do not change Values in the MEASUREMENTS column are snap shots of the values at the time they were requested To obtain a value that varies with the measured quantity it should be added to the poll list as described in the communication manual 9 5 2 Relay no longer responding Check if other relays that are further along the bus are responding and if so power down the relay for 10 seconds and then re energise to reset the communication processor This should not be necessary as the reset operation occurs automatically when the relay detects a loss of communication If relays further
112. nds SprCh Window 5 Seconds Dead Time 2 60 Seconds Mancl AR Inh 5 Seconds Dead Time 3 180 Seconds TripfailTime 1 Second Dead Time 4 180 Seconds Exc Fit 1000 Seconds Close Pulse 1 Second Autoreset 300 Seconds Reclaim Time 180 Seconds C Ld Pickup 600 Seconds SynCh Window 5 Seconds Linev Memory 2 Seconds INPUT MASKS RELAY MASKS OPTO NUMBER 71615 1413121110 RELAY NUMBER 716 5143210 INP CB AuxSwitch 0 0 0 0 0 O0 RLY A R in Prog INP Inst Protn RLY CB Close Sig 0 0 1 0 INP Main Protn 0 0 0 010111 010 RLY AR Available 1 INP Spring Charg 0 0 0 101110 010 RLY Block InstPr 0 0101011 010 0 INP Manual CB CI RLY Maint Alarm 0 10 0 010 0 010 INP Non AR Protn RLY MaintLockout 000001000 INP Block AR 011101001000 RLY Exc Fit Frq INP ResetLockout 0 0 2 10 1010 010 RLY CB Failclose 110 0 0 0 0 0 0 INP Reset M Cntr ojojo o o o 0 O RLY C Ld Pickup 0 0 0 1 0 0 0 INP Omit 1st Sht RLY Lockout 0 0101010 110 0 INP RemSw Inserv RLY AR Inh 0 0 101010 010 0 INP RemSw Outserv 0 0 0 1010 0 01 0 RLY OutOfService 0 010 010 1101 0 INP Inh CheckSyn 1 0101010 0 0 0 RLY Enable Inst RLY CheckSyn RLY ChSyn Failed 0 0 1 0 0 0 RLY A R Success CHECK SYNCH SETTINGS CSS V T Ratio 141 CSS Phase Angle
113. nput 6 03 BLOCK BAR input 6 03 INHIBIT LOCKOUTM P4 R6 PIO R1 P4 P1313ENa Figure 20 Scheme logic diagram KAVR 102 Drg No 08 KAVR 102 01 60 106 Service Manual KAVR 100 SW I SW OUT RSW OUT ARISM PAGE 4 e e userin Q Userin 1 input 11 RSW IN ARINPROG T input 10 R4 ARIS CLOSEOK o P4 RI P4 R4 LOCKOUTM prcoMp PROTOP SPRCHGED SYNOK CLOSEOK P10 R1 P7 R3 P3 Ri P3 R2 CBME C B 1 FNCT 7 ARINHIB CS11 P6 R6 P2 R1 07 LINEVMEM LINELIVE 21 ARINPROG z INHIBIT RL10 100 ul P16 R2 P16 R1 15 P5 R4 ARSTART CBMEM INITOK INHIBIT INITIATE PAGE 5 A A R INITIATION R2 P6 R6 P16 R3 P4 R6 FNCT 5 NITIATE INITAUX 05 5 RI SEQCNT H INC FNCT 4 C B 1 CBMEM INITOK LOCKOUT INHIBIT ARINPROG RLO 04 P2 R1 P6 RB P16 R3 PIO RI R6 ARINPROG RTIME LOCKOUT ARIP resto P5 R4 P19 R1 P10 R1 SEGCNT ARINPROG SEQCNT 3 RES P5 R4 DTCOMP DEADTIME PAGE 6 ARI
114. ntr gt CNS MaintLockout Latching alarms red LED are initiated by specific scheme logic conditions and remain active even after the initiating conditions have reset If any latching alarm is active when all active alarm messages have been displayed the next message displayed is Reset Alarms 0 Once the initiating conditions have reset the associated alarm can be reset by a long press of the 0 key when the Reset Alarms 0 message is displayed Latching alarms on the KVART0OO are LCD message Initiating scheme logic condition AUTO RECLOSE LOCKOUT Auto reclosing locked out FAULT NOT CLEARED CB failed to trip or protection failed to reset within TMR TripfailTime after AR initiation EXCESS FLT FREQ LOCKOUT RST ExFltFrq Cnt gt CNS Exc Flt Freq CIRCUIT BREAKER CB not closed by end of TMR Close Pulse time FAILED TO CLOSE when CB Close command is given As an alternative to pressing the 0 key when the Reset Alarms 0 message is displayed the above alarms can also be reset as follows AR LOCKOUT energise opto input assigned to input mask INP ResetLockout activate user control USR ResetLockout can be done via K Bus successful manual CB closure if FNCT 9 1 scheme resets automatically FLT NOT CLEARED automatic reset when CB opened and protection reset CB FAIL TO CLOSE automatic reset by successful manual CB closure Scheme Event Records The relay scheme logic allows specified events to
115. o Service alarm 89 9 4 Records 89 9 4 1 Problems with event records 89 9 4 2 Problems with disturbance records 89 9 5 Communications 89 9 5 1 Measured values do not change 90 9 5 2 Relay no longer responding 90 9 5 3 No response to remote control commands 90 10 MAINTENANCE 91 10 1 Testing 91 10 1 1 Alarms 91 10 1 2 Measurement accuracy 91 10 1 3 Output relay test 91 10 2 Additional tests 91 10 3 Method of repair 91 10 3 1 Replacing a PCB 91 10 3 2 Replacing output relays and opto isolators 92 10 3 3 Replacing the power supply board 92 10 3 4 Replacing the back plane size 4 amp 6 case 93 10 4 Recalibration 93 10 5 Return to factory 93 11 COMMISSIONING TEST RECORD 96 12 KAVR100 SOFTWARE HISTORY 104 12 1 KAVR10001x1xJEA gt xJEB June 1993 to Feb 1994 104 12 2 KAVR10001x1xJEB gt xJEC Feb 1994 to August 1994 104 12 3 KAVR10001x1xJEC gt xJED Feb 1994 to Nov 1995 104 12 4 KAVR10001x1xJED gt xJEE Nov 1995 to Dec 1996 105 12 5 KAVR10001x1xJEE gt xJEF Dec 1996 to March 1997 105 12 6 KAVR10001x1xJEF gt xJEG March 1997 to Nov 1997 105 Service Manual KAVR 100 12 7 12 8 12 9 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Fig
116. o operate This should be not less than CSS Synch Timer setting 5 0 015 and not greater than CSS Synch Timer setting 5 0 045 Phase angle check undervoltage blocking Under CHECK SYNCH STGS change CSS Fn Links to 0000100000000001 Set both voltages to greater than CSS Undervoltage setting and phase angle to zero Out put RL1 should be operated Slowly reduce V Line until RL resets and note the value when this happens This should be within or 5 of CSS Undervoltage setting Slowly increase V Line until RLI re operates and note the value when this happens This should be within 0 and 10 of the reset value Slowly reduce V Bus until RL1 resets and note the value when this happens This should be within or 5 of CSS Undervoltage setting Slowly increase V Bus until RL1 re operates and note the value when this happens This should be within 0 and 10 of the reset value Phase angle check differential voltage blocking Under CHECK SYNCH STGS change CSS Fn Links to 0010000000000001 Set both voltages to nominal and phase angle to zero Out put RL1 should be operated Slowly reduce V Line until RL1 resets and note the V Bus V Line value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly increase V Line until RL1 re operates and note the V Line value when this happens This should be within 0 and 10 of the V Line value when RL1 reset in
117. of the F key the display will read Are You Sure YES Press the 0 key if you decide not to enter the password Press the key if you want to modify the entry Press the to enter the password The display will then show four stars and if the password was accepted the yellow LED will flash If the password is not accepted a further attempt can be made to enter it or the 0 key used to escape Password protection is reinstated when the alarm LED stops flashing two minutes after the last key press or by selecting the PASSWORD cell and pressing the 0 key for more than one second Service Manual R8507D KAVR 100 Page 39 106 5 2 2 5 2 3 5 2 4 9 2 0 5 2 6 Changing passwords After entering the current password and it is accepted as indicated by the alarm LED flashing the F key is pressed momentarily to move to the next menu cell If instead it is required to enter a new password the key must be pressed to select the setting mode A new password can be entered with the same procedure described in Section 5 2 1 Only capital upper case letters may be used for the password Be sure to make a note of the password before entering it Access will be denied without the correct password Entering text Enter the setting mode as described in Section 5 2 and move the cursor with the F key to where the text is to be entered or changed Then using the amp key select the character to be
118. on a conducting surface which is at the same potential as yourself 5 Store or transport the module in a conductive bag More information on safe working procedures for all electronic equipment can be found in BS5783 and IEC 60147 0F If you are making measurements on the internal electronic circuitry of an equipment in service it is preferable that you are earthed to the case with a conductive wrist strap Wrist straps should have a resistance to ground between 500k 10M ohms If a wrist strap is not available you should maintain regular contact with the case to prevent the build up of static Instrumentation which may be used for making measurements should be earthed to the case whenever possible AREVA T amp D strongly recommends that detailed investigations on the electronic circuitry or modification work should be carried out in a Special Handling Area such as described in BS5783 or IEC 60147 0F 1 SAFETY SECTION 3 1 1 Health and safety 1 2 Explanation of symbols and labels 3 2 INSTALLING COMMISSIONING AND SERVICING 3 3 EQUIPMENT OPERATING CONDITIONS 4 3 1 Current transformer circuits 4 3 2 External resistors 4 3 3 Battery replacement 4 3 4 Insulation and dielectric strength testing 4 3 5 Insertion of modules and pcb cards 4 3 6 Fibre optic communication 5 4 OLDER PRODUCTS 5 5 DECOMMISSIONING AND DISPOSAL 5 6 TECHNICAL SPECIFICATIONS 6 1 1 1 2 SAFETY SECTION This Safety Section s
119. ormers DO NOT OPEN CIRCUIT THE SECONDARY CIRCUIT OF A LIVE CT SINCE THE HIGH VOLTAGE PRODUCED MAY BE LETHAL TO PERSONNEL AND COULD DAMAGE INSULATION Test block If the MMLG test block is provided the connections should be checked to the scheme diagram particularly that the supply connections are to the live side of the test block coloured orange and with the terminals allocated odd numbers 1 3 5 7 etc The auxiliary supply is normally routed via terminals 13 and 15 but check against the schematic diagram for the installation Insulation Insulation tests only need to be done when required Isolate all wiring from earth and test the insulation with an electronic or brushless insulation tester at a dc voltage not exceeding 1000V Terminals of the same circuits should be temporarily strapped together The main groups on the relays are given below but they may be modified by external connection as can be determined from the scheme diagram Voltage transformer circuits Auxiliary voltage supply Field voltage output opto isolated control inputs Relay contacts Communication port Case earth Note Do not apply an insulation test between the auxiliary supply and the capacitor discharge terminals because they are part of the same circuit and internally connected Commissioning test notes Equipment required A means of switching the field voltage onto each opto input Time interval meter Multifinger te
120. relay If they differ quote the one in the system data column 9 2 Check synchronism settings 9 2 1 Cells not visible To make the check synchronism setting cells visible the following links must be set to 1 in the CSS Fn Links cell Cell Text Function Link Text Function Link Bit Pattern CSS Phase Angle Synccheck 0000000000000001 CSS Slip Freq Synccheck and Slipfreq 000000000000001 1 CSS Synch Timer Synccheck and Sliptime 0000000000000101 CSS System Angle Syscheck 0000000000100000 CSS System Slip Syscheck and Sysfreq 0000000001 100000 CSS System Timer Syscheck and Systime 000000001 0100000 CSS V B L Live LBDL or DBLL or DBDL 0000011100000000 CSS V B L Dead LBDL or DBLL or DBDL 0000011100000000 CSS Undervoltage UVBlock 0000100000000000 CSS Diff Voltage DiffBLK 0010000000000000 9 2 2 Undervoltage feature does not block If the undervoltage feature does not block the phase angle or system angle output Set CSS Fn Link UVBlock to 1 0000100000000000 9 2 3 Differential voltage feature does not block If the differential voltage feature does not block the phase angle or system angle output Set CSS Fn Link DiffBLK to 1 0010000000000000 9 2 4 Undervoltage feature output has incorrect sense Set CSS Fn Link UVOP to 1 0001000000000000 9 2 5 Differential voltage feature output has incorrect sense Set CSS Fn Link DiffOP to 1 0100000000000000 85070 Service Manual Page 88 106 KAVR 100 9 2 6 9 2 7 9 2 8 9 3 9 3 1
121. rgets LIMITS Ladder Name Max Min Display Name Menu Cell Y Y SHOTS 4 1 CNS Shots 0901 Y Y Y INSTRIPS 5 0 CNS Inst Trips 0902 Y Y Y M AL 9999 1 CNS Maint Alarm 0903 Y Y Y Y M LO 9999 1 CNS MaintLockout 0904 Y v IXFF 9999 1 CNS Exc Fit Freq 0905 P1322ENa Figure 19 Scheme Logic Diagram KAVR 102 Drg No 08 KAVR102 01 Service Manual KAVR 100 Page 59 106 PAGE 1 mr PROTCHCK input 2 INST INST ALLOWINS ARSTART e input 1 input 1 P17 Ri MAINPR PROTOP input 2 FNCT 12 LOCKOUT MAINT MLEFFBLK OC P10 R1 P11 R4 NOSYNCH LOCKOUTI EFF R6 P10 R1 P12 R4 NOSYN NOSYNCH RL14 P2 R2 FNCT 0 C B 1 PAGE 2 550 CBAUX CLSCHK 00 CBAUX NoSYN e4SvwINDOW input 00 PS R2 V LOCKOUTM C B CLOSEOK SPRCHGED NosPRCHC SPCHTIME P10 R1 P7 Ri P2 P4 R4 P3 RI gt FNCT 1 SAGE 3 ENERGY M SPRCHGED SELECT We i input 3 01 ENERGY 1 ARCPREP SYNOK input 3 01 P18 R1 ix 16 srgewt 10 i BLOCK FNCT 3 o i
122. ronism settings CSS VT Ratio CSS Phase Angle CSS Slip Freq CSS Synch Timer CSS System Angle Service Manual KAVR 100 Hz Service Manual KAVR 100 CSS System Slip CSS System Timer CSS V B L Live CSS V B L Dead CSS UnderVoltage CSS Diff Voltage Timer settings TMR Dead Time 1 TMR Dead Time 2 TMR Dead Time 3 TMR Dead Time 4 TMR Close Pulse TMR Reclaim Time TMR SynCh Window TMR SprCh Window TMR Mancl AR Inh TMR TripFailTim R8507D Page 99 106 R8507D Page 100 106 8 4 Exc Frq Autoreset TMR Cld Pickup TMR LineV Memory Counter settings CNS Shots CNS Inst Trips CNS Maint Alarm CNS MaintLockout CNS Exc Flt Freq CNS SEF Shots CNS SEF InsTrips Metering checks Actual Value Injected Line Voltage Bus Voltage Service Manual KAVR 100 Relay Metered Value Service Manual KAVR 100 8 5 8 6 8 7 1 8 7 5 8 7 2 8 7 6 R8507D Page 101 106 Opto input checks Opto input number tick LO L1 L2 L3 L4 L5 L L7 Output relay checks Output relay number tick 0 1 DO BR CO N Phase angle element and system angle element Phase Angle System Angle Drop OR 19 Pick Up 59 7 5 Synchronism timer blocking the phase
123. ry press of the key or if the key is held down the value will be incremented with increasing rapidity until the key is released Similarly the key can be used to decrement the value Follow the instructions in Section 5 2 to exit from the setting change Note When entering the VT ratio the overall ratio should be entered i e 11000 110V VT has an overall ratio of 100 1 With rated voltage applied the relay will display 1 10V when VT ratio has the default value of 1 1 and when the VT ratio is set to 100 1 the displayed value will be 100 x 110 11000V Setting communication address The communication address will normally be set to 255 the global address to all relays on the network when the relay is first supplied Reply messages are not issued from any relay for a global command because they would all respond at the same time and result in contention on the bus Setting the address to 255 will ensure that when first connected to the network they will not interfere with communications on existing installations The communication address can be manually set by selecting 85070 Service Manual Page 40 106 KAVR 100 5 2 7 5 2 8 5 2 9 5 2 10 the appropriate cell for the SYSTEM DATA column entering the setting mode as described in Section 5 2 and then decrementing or incrementing the address is recommended thot the user enters the plant reference in the appropriate cell and then sets the address manually to 0
124. s of the F key will then move down the new column row by row In this way the full menu of the relay may be scanned with just one key the F key and this key is accessible with the cover in place on the relay The other key that is accessible with the cover in place is the reset key 0 A momentary press of this key will switch on the back light for the LCD without changing the display in any way To change any setting the cover has to be removed from the relay to gain access to the and keys which are used to increment or decrement a setting value or reset a counter value to zero When a column heading is displayed the key will change the display to the next column and the key will change the display to the previous column giving a faster selection When a cell containing a relay setting is displayed the action of pressing either the or keys will indicate to the relay that a value is to be changed and a flashing cursor will appear on the display To escape from the setting mode without making Service Manual R8507D KAVR 100 Page 31 106 5 1 5 1 1 any change the 0 key should be depressed for one second For instruction on how to change the various types of settings refer to Section 5 2 Menu contents Related data and settings are grouped together in separate columns of the menu Each column has a text heading that identifies the data contained in that column Each cell may contain text values li
125. s of the watchdog relay Impulse IEC 60255 5 5 kV peak 1 2 50us 0 5 between all terminals and all terminals to case earth High frequency disturbance IEC 60255 22 1 2 2 5kV peak between independent circuits and case Fast transient IEC 60255 22 4 Class 3 2kV relay contact circuits Class 4 4kV relay contacts with external filter Class 4 4kV all other circuits Static discharge test Class 4 15kV discharge in air with cover in place Class 6kV point contact discharge with cover removed ANSI IEEE standards C36 90 The relay also complies with the appropriate ANSI IEEE standards for power system protection relays Environmental Temperature IEC 60068 2 3 Storage and transit 25 C to 70 C Operating 25 C to 55 Humidity IEC 60068 2 3 56 days at 9396 relative humidity and 40 R8507D Service Manual Page 76 106 KAVR 100 7 10 3 Enclosure protection IEC 60529 IP50 Dust protected 7 10 4 Vibration IEC 60255 21 1 0 5g between 60Hz and 600Hz 0 07 mm peak to peak between 10Hz and 60Hz 7 10 5 Mechanical durability 10 000 operations minimum 7 11 Model numbers Configuration i e settings as supplied and connection diagram sheet number varies with external connection arrangements KAVR100 COCS Issue Ratings Case details Mechanical assembly Relay type P1073ENb KVTR 1 XX L Programs numbered sequentially 1 Programs generated in UK 2 Programs generated in USA
126. se angle or CSS System angle as relevant AND 5 _ if slip frequency blocking is enabled by setting the relevant CSS Fn Links bit to 1 bit 1 for phase angle check or bit 6 for system angle check the measured rate of change of phase angle between incoming line and bus voltages is less than the set slip frequency limit CSS Slip Freq for phase angle check or CSS System Slip for system angle check AND 6 if undervoltage blocking is enabled by setting CSS Fn Links bit B to 1 the measured magnitude of BOTH incoming voltages is not less than the CSS Undervoltage setting AND 7 if differential voltage blocking is enabled by setting CSS Fn Links bit D to 1 the difference between the measured magnitudes of the incoming line and bus voltages is less than the CSS Diff Voltage setting The dead line live bus comparator gives an output to the scheme logic provided 1 it is enabled by setting CSS Fn Links bit 8 to 1 AND 2 the measured magnitude of the incoming line volts is less than the CSS V B L Dead setting 685070 Service Manual Page 18 106 KAVR 100 AND 3 the measured magnitude of the incoming bus volts is greater than the CSS V B L Live setting The live line dead bus comparator gives an output to the scheme logic provided 1 itis enabled by setting CSS Fn Links bit 9 to 1 AND 2 the measured magnitude of the incoming bus volts is less than the CSS V B L Dead setting AND 3 the
127. st plug type MMLBO1 for use with test block type MMLG Continuity tester R8507D Service Manual Page 80 106 KAVR 100 2 ac voltmeters 0 440V 2 suitable non inductive potentiometers to adjust voltage level A means of adjusting the phase relationship between the 2 voltages Phase angle meter or transducer A portable PC with suitable software and KITZ101 K Bus IEC 60870 5 interface unit will be useful but in no way essential to commissioning 8 3 Auxiliary supply tests 8 3 1 Auxiliary supply The relay can be operated from either ac or a auxiliary supply but the incoming voltage must be within the operating range specified in Table 8 3 Relay Rating DC Operating Range AC Operating Range Maximum Crest V V V ac Voltage V 24 125 19 150 50 133 190 48 250 33 300 87 265 380 Table 8 3 CAUTION THE RELAY CAN WITHSTAND SOME AC RIPPLE ON A DC AUXILIARY SUPPLY HOWEVER IN ALL CASES THE PEAK VALUE OF THE AUXILIARY SUPPLY MUST NOT EXCEED THE MAXIMUM CREST VOLTAGE DO NOT ENERGISE THE RELAY USING THE BATTERY CHARGER WITH THE BATTERY DISCONNECTED 8 3 2 Energisation from auxiliary voltage supply For secondary injection testing using the test block type MMLG insert test plug type MMLBO1 with CT shorting links fitted It may be necessary to link across the front of the test plug to restore the auxiliary supply to the relay Isolate the relay trip contacts and insert the module With
128. such as IDMT OC or EF or plain distance with conventional 80 Zone 1 reach This output can be set to operate after 1 2 3 or 4 trips CNS Inst Trips setting and will then remain operated until the relay resets or locks out at the end of the auto reclose cycle The usual arrangement for this feature is for the output relay to be normally reset and operate contact closes to block non discriminating protection Relay Mask RLY Block InstPr assigned to an output relay This is suitable for most modern protective relays For protective relays which require a normally closed contact which opens to inhibit non discriminating trip functions Relay Mask RLY Enable Inst can be assigned instead A second independently adjustable instantaneous trips selector is available Relay Mask RLY Blk SEF Inst or RLY SEF Inst OK assigned to an output relay for applications where sensitive earth fault SEF protection is required to initiate auto reclosing with short time SEF protection tripping being blocked after 1 2 3 or 4 trips CNS SEF InsTrips setting Separate logic input masks are available for inputs from short time and long time SEF protection The operating logic can be configured such that operation of the reclaim timer is suspended by an input from non discriminating protection if the Block Instantaneous Trips or Block Short Time SEF Trips output is set This input is now treated as a fault present but not yet tripped indication and ensures
129. t function operated by simple press of 0 key Issue Date SYS Software Ref SYS Ladder Ref Nov 1997 Op Sys 2 20 KAVRTOOEN C1 60 Settings file issue C R8507D Service Manual Page 106 106 KAVR 100 KAVR10001x1xJEH gt July 1998 to date 1 Increment decrement to maintenance count by user control Enable correct flagging if final trip is IDMT BAR Issue Date SYS Software Ref SYS Ladder Ref July 1998 Op Sys 2 22 KAVR100EO 1 62 Settings file issue C KAVR10002x1xJEA gt May 1999 to date Model variant KAVR10002 has slightly different functionality from the standard KAVR10001 The variant was developed to meet the special requirements of TNB Malaysia but might be appropriate in some other situations The deviations from the standard model are described below 1 Logic Inputs Input Mask SEFINST INP Inst SEF is replaced by a new mask INHCHSYN INP CheckSyn Input mask SEF INP Sensitive RF is deleted 2 Output Relays Relay mask BLSEFINS RLY Blk SEF Inst is replaced by a new mask SYNCH RLY CheckSyn OK Relay mask OKSEFINS RLY SEF Inst OK is replaced by a new mask NOSYNCH RLY ChSyn Failed 3 Functions FNCT 18 is re designated SYNCH ANY 4 Alarms New Status 1 alarm SYNCH CHECK FAILED triggered by output relay mask NOSYNCH 5 Counter Settings SEFSHOTS CNS SEF Shots and SEFINSTR CNS SEF InsTrips are deleted 6 Ladder Logic The changes
130. t on the settings in this column of the menu However the records have to be read via the serial communication port and suitable additional software is required to reconstruct and display the wave forms Only one complete record is stored and the recorder must be retriggered before another record can be captured R8507D Service Manual Page 42 106 KAVR 100 5 3 1 Recorder control 5 3 2 5 3 3 5 3 4 5 3 5 This cell displays the state of the recorder RUNNING recorder storing data overwriting oldest data TRIGGERED recorder stop delay triggered STOPPED recorder stopped and record ready for retrieval When this cell is selected manual control is possible and to achieve this the relay must be put into the setting mode by pressing the key A flashing cursor will then appear on the bottom line of the display at the left hand side The key will then select RUNNING and the key will select triggered When the appropriate function has been selected the F key is pressed to accept the selection and the selected function will take effect when the key is pressed to confirm the selection To abort the selection at any stage press the reset key 0 Recorder capture The recorder can capture SAMPLES the individual calibrated samples MAGNITUDES the Fourier derived amplitudes PHASES the Fourier derived phase angles The relay has no electro mechanical adjustments all calibration is effected in software and all
131. t display SET The selection can be 1 The manufacturer s display AREVA T amp D K SERIES MIDOS The ladder default display Description or user defined scheme reference Plant Reference user defined V Line V Bus uM The Counter Values Service Manual R8507D KAVR 100 Page 37 106 7 Measurements See Section 5 1 5 OA06 LOG Rotation Selects if default display 5 or 6 and the alarm 5 1 12 5 1 13 5 1 14 5 1 15 display will change every 5 seconds or only when the F key is pressed SET 0A07 LOG TEST RELAYS Select Selects output relays which will change state when cell 8 is reset PWP 0A08 LOG TEST RELAYS 0 Selected relays will change state when 0 key is pressed PWP INPUT MASKS PWP to OB10 An eight bit mask is allocated to each functional logic input in the scheme logic Please refer to Section 2 3 Opto isolated inputs Each cell in the INPUT MASKS column displays on the top line the defined display name for the associated input function and on the bottom line a series of 1 s and 0 for the selected mask The numbers printed on the front plate under the display indicate which opto input L7 to LO is associated with each bit A 1 indicates that the particular opto input will activate the selected logic input and a indicates that it will not RELAY MASKS PWP to OC10 An eight bit mask is allocated to each functional logic output in t
132. tFrq Cnt 000 Counter Settings Test Targets LIMITS Ladder Name Max Min Display Name Menu Cell Y Y v SHOTS 4 1 CNS Shots 0901 v Y v INSTRIPS 5 0 CNS Inst Trips 0902 Y Y Y v MAL 9999 CNS Maint Alarm 0903 Y Y MLO 9999 CNS MaintLockout 0904 Y Y XFF 9999 T ICNS Exc Fit Freq 0905 Y Y Y SEFSHOTS 4 0 ICNS SEF Shots 0906 5 5 Y Y Y Z SEFINSTR 5 0 CNS SEF InsTrips 0907 Figure 8 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 R8507D Service Manual Page 48 106 KAVR 100 PACE 1 7 MAINPROT PROTCHCK input 2 INST INST ALLOWINS ARSTART e o input 1 input 1 P18 R1 MAINPR SEFINST OKSEFINS T input 2 input 14 P18 R2 SEFINST SEF SEFPROT input 14 input 15 SEF PROTOP e input 15 FNCT 0 G B 1 PAGE 2 111 550 CBAUX CLSCHK input 00 e SYWINDOW input 0 00 PA LOCKOUTM prcoMp C B 1 105 SPRCHGED _ NosPRCHG P11 R1 P7 P2 P4 R4 PS FNCT 1 PAGE 3 ENERGY SPRCHGED 2 input 3 01 ENERGY 1 ARCPREP SYNOK input 3 01 PIS R1 54 SEQCNT 10 BLOCK FNCT 3 EE input 6 03 BLOCK 3 BAR input 6 03 INHIBIT LOCKOUTM
133. terminal 14 Note To avoid damage to the relay do not connect any auxiliary supplies to terminals 7 and 8 3 2 Opto isolated control inputs The opto isolated control inputs are rated for 48V and energised from the isolated 48V field voltage provided on terminals 7 and 8 of the relay Terminal 8 must be connected to terminals 52 and 55 The opto isolated control inputs can then be energised by connecting a volt free contact between terminal 7 and the terminal associated with the required input LO to L7 given in the above table The circuit for each opto isolated input contains a blocking diode to protect it from any damage that may result from the application of voltage with incorrect polarity Common line P2115ENa Figure 3 Connection to opto isolated control inputs Where the opto isolated input of more than one relay is to be controlled by the same contact it will be necessary to connect terminal 7 of each relay together to form a common line In the example shown in Figure 1 contact X operates L1 of relay 1 and contact Y operates LO of relay 1 as well as LO L1 of relay 2 L2 is not used on either relay and has no connections made to it Service Manual R8507D KAVR 100 Page 27 106 3 3 3 4 3 5 Analog inputs KAVR relays have two analog inputs on the microprocessor board Each is fed via an input transducer a low pass filter and a three range scaling amplifier The analog signals are sampled eight ti
134. that the reclaim time cannot time out and reset the relay before the time delayed discriminating protection operates This arrangement allows reclaim time settings shorter than the maximum protection operating time to be applied which can help to prevent unnecessary lockout for a succession of transient faults at short intervals for example in a lightning storm 2 2 7 Maintenance Alarm and Lockout A fault trips counter RST Maint Countr is incremented whenever the CB trips as a result of any protection operation special input mask INP Non AR Protn is provided to allow the counter to be incremented without initiating an AR cycle for a trip initiated by any protection for which AR is not required The counter can be reset to zero via the RESET COUNTERS menu column the user interface locally or K Bus by energising an opto input assigned to input mask INP Reset Cntr if FNCT 20 1 by activating user control cell USR Res MaintCnt via K Bus Service Manual R8507D KAVR 100 Page 5 106 2 2 8 2 2 9 2 2 10 2 2 11 2 2 12 if FNCT 20 1 and the ML O output is set by pressing the 0 key when prompted Output mask RLY Maint Alarm and control status flag CTL Maint Alarm are set when the fault trips counter reaches the CNS Maint Alarm target setting and remain set until the counter value becomes less than the target i e usually until the counter is reset The output mask can also b
135. the display bottom line will change to 0 Resetting values and records Some values and records can be reset to zero or some predefined value To achieve this the menu cell must be displayed then the 0 key must then be held depressed for at least one second to effect the reset Alarm records The alarm flags are towards the end of the SYSTEM DATA column of the menu and consist of seven characters that may be either 1 or O to indicate the set and reset states of the alarm The control keys perform for this menu cell in the same way as they do for Function Links and if this cell is selected with the function key F the relay can then put in the setting mode by pressing the key The F can then be used to step the cursor to each bit in the alarm status word and text describing the alarm state indicated by the bit selected with the cursor will be displayed as the cursor passes over the individual bits The numbers printed on the front plate of the relay under the display identify the individual bits in the alarm record Service Manual R8507D KAVR 100 Page 41 106 5 2 11 5 3 Bit position 76543210 Me Unconfig relay not operational needs to be configured Uncalib relay is running uncalibrated calibration error Setting relay is running possible setting error No Service relay is out of service No Samples relay not sampling No Fourier relay not performing fourier Scheme Alar
136. the last test R8507D Service Manual Page 84 106 KAVR 100 Continue slowly increasing V Line until resets and note the V Line V Bus value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly reduce V Line until RLI re operates and note the V Line value when this happens This should be within 1096 and 0 of the V Line value when RL1 reset in the last test Slowly reduce V Bus until RL1 resets and note the V Line V Bus value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly increase V Bus until re operates and note the V Bus value when this happens This should be within 0 and 10 of the V Bus value when reset in the last test Continue slowly increasing V Bus until resets and note the V Bus V Line value when this happens This should be within OV and 2V of CSS Diff Voltage setting Slowly reduce V Bus until RL1 re operates and note the V Bus value when this happens This should be within 10 and 096 of the V Bus value when reset in the last test 8 7 5 System angle check instantaneous operation Under LOGIC FUNCTIONS set Scheme Fn Links 2 0000100000000000 Under CHECK SYNCH STGS set CSS Fn Links to 0000000000100000 Inject nominal voltage into V Line terminals 17 18 and V Bus terminals 19 20 starting with the phase angle between them less than CSS System Angle setting 3 Output RL1 should
137. the opto inputs 1 means the input is on means it is off 0021 SYS Relay Status READ Displays the status of the output relays 1 means the relay is on means it is off 0022 SYS Alarms Current state of alarm flags see 2 1 land 5 2 10 USER CONTROLS SET 0101 to 0110 Up to 16 user controls may be entered in the ladder They act as inputs in the ladder User controls not entered will not be displayed Any displayed user control can be operated by pressing the 0 key user control will remain on for a minimum of approximately 250ms or until the 0 key is released R8507D Service Manual Page 34 106 KAVR 100 9 1 3 5 1 4 5 1 5 5 1 7 CONTROL OUTPUTS READ 0201 to 0210 Up to 16 control status outputs may be entered in the ladder Outputs not entered will not be displayed Each displayed output consists of some text describing its function and its state ON or OFF These outputs correspond to the bits in the control status word EVENT RECORDS READ 0300 to 0310 This column will display Scheme Events data MEASUREMENTS READ 0401 MES Line Voltage Line voltage 0402 MES Bus Voltage Bus voltage 0403 MES Phase Angle Angle between the line and bus voltages 0404 MES System Frq Frequency of the line voltage 0405 MES Slip Frq Difference in frequency between the input voltages This column is only available if one or more check synchronism elements are entered in the ladder diagram The measurements displ
138. three of the above options are used in the calibration process For normal use as a fault recorder SAMPLES will be the most useful Relays without analog inputs cannot record magnitudes and phases as the Fourier software is not running Only samples can be recorded and only the input and output digital channels will be obtained Recorder post trigger The Post Trigger setting determines the length of the trace that occurs after the stop trigger is received This may be set to any value between 1 and 512 samples When recording samples the total trace duration is 512 8 64 cycles because the interval between the samples is equivalent to one eighth of a cycle However the Fourier derived values are calculated once per cycle and so the total trace length when recording these calculated phase or amplitude values is 512 cycles Recorder logic triggers Any or all of the disturbance recorder triggers detailed in section 2 12 can be selected as stop triggers by setting 1 against the relevant bit or bits in cell REC Trig ON or REC Trig OFF Any trigger which has its associated bit set to O will not trigger the disturbance record The procedure for setting recorder triggers is the same as changing function links described in section 5 2 4 Notes on recorded times The times recorded by triggering from the ladder recorder triggers are affected by the following factors The relay accepted the opto isolated inputs as valid 12 5 2 5ms at 50Hz 10
139. time as construction work Storage If relays are not to be installed immediately upon receipt they should be stored in a place free from dust and moisture in their original cartons Where de humidifier bags have been included in the packing they should be retained The action of the de humidifier crystals will be impaired if the bag has been exposed to ambient conditions and may be restored by gently heating the bag for about an hour prior to replacing it in the carton Dust which collects on a carton may on subsequent unpacking find its way into the relay in damp conditions the carton and packing may become impregnated with moisture and the de humidifier will lose its efficiency Storage temperature 25 C to 70 Service Manual R8507D KAVR 100 Page 3 106 2 DESCRIPTION 2 1 Application and basic operating sequence 2 2 2 2 1 2 2 2 2 2 3 2 2 4 The KAVR100 auto reclose relay provides multi shot three phase auto reclose control with integral synchronism check and voltage monitor for distribution and transmission systems It can be adjusted to perform a single shot two shot three shot or four shot cycle Dead times for all shots reclose attempts are independently adjustable An auto reclose cycle is initiated by operation of a protective relay provided the circuit breaker is closed up to the instant of protection operation and the dead time TMR Dead Time 1 2 3 or 4 starts when the circuit breaker has tripped
140. timeout volatile R8507D Service Manual Page 14 106 KAVR 100 Display Name Description RST Maint Countr Fault trips counter for maintenance alarm and lockout RST Total Reclos Total reclose attempts counter 2 10 2 Counter targets Settings 2 10 3 2 11 2 11 1 These user adjustable values appear under menu column heading COUNTER SETTINGS They can be used in scheme logic as reference values for counter comparisons and counter value messages Display Name Description Setting Range CNS Shots Maximum number of reclose attempts before 1 4 lockout for a persistent fault CNS Inst Trips Permitted number of trips by non 0 5 discriminating protection CNS Maint Alarm Number of fault trips to maintenance alarm 1 9999 CNS MaintLockout Number of fault trips to maintenance lockout 1 9999 CNS Exc Flt Freq Fault trips target for excessive fault frequency 1 9999 logic CNS SEF Shots Maximum number of reclose attempts 0 4 initiated by SEF protection before lockout CNS SEF InsTrips Permitted number of trips by fast SEF 0 5 protection Counter values messages These messages appear under menu column heading COUNTER VALUES Each value is the difference between two specific quantities counter registers targets or fixed values Display Name Description CNV Total Reclos Total reclose attempts RST Total Reclos 0 CNV ShotstoM Lock Remaining fault trips before maintenance lockout CNS MaintLockout RST Maint Countr
141. to the ladder logic are shown in section 6 REPAIR FORM Please complete this form and return it to AREVA T amp D with the equipment to be repaired This form may also be used in the case of application queries AREVA T amp D St Leonards Works Stafford ST17 4LX England For After Sales Service Department Customer Ref Model No AREVA Contract Ref Serial No Date 1 What parameters were in use at the time the fault occurred AC Volts Main VT Test set DC Volts Battery Power supply AC current Main CT Test set Frequency 2 Which type of test was being used 3 Were all the external components fitted where required Yes No Delete as appropriate 4 List the relay settings being used 5 What did you expect to happen continued overleaf 6 What did happen 7 When did the fault occur Instant Yes No Intermittent Yes No Time delayed Yes No Delete as appropriate By how long 8 What indications if any did the relay show 9 Was there any visual damage 10 Any other remarks which may be useful Signature Title Name in capitals Company name Publication 885070 AREVA AREVA amp 0 Automation amp Information Systems Business www areva td com T amp D Worldwide Contact Centre online 24 hours day 44 0 1785 25 OO 70 http www areva td com contactcentre
142. tputs and software relays Each ladder scheme logic output or control output element has a short ladder name which is an abbreviated version of its full display name Each coil symbol in column 7 is further identified RL n or CS n where n refers to the position of the output in the associated list in section 2 5 or 2 6 List numbering starts at 0 RL n numbers refer to the list positions of output RELAY MASKS not to any specific output relay contacts Each internal scheme logic flag or software relay has a short ladder name but no other identification Each contact associated with a scheme logic output control output or software relay is identified by the same ladder name with a reference underneath to the ladder page number and row number Pn Rn where the associated coil is located in the ladder logic Software scheme function links Each scheme function link contact is identified by the associated scheme function link number FNCT n Software scheme function links Each scheme function link contact is identified by the associated scheme function link number FNCT n Other elements Timer settings counter registers and counter target settings used in the scheme logic are all identified by a short ladder name which is an abbreviation of the associated full display name listed in section 2 9 or 2 10 85070 46 106 Service Manual KAVR 100
143. trol Input L4 47 48 Opto Control Input L1 Opto Control Input L5 49 50 Opto Control Input L2 Opto Control Input 16 51 52 Common LO L1 L2 Opto Control Input L7 53 54 K Bus Serial Port P M 55 56 K Bus Serial Port Key to connection tables and indicate the polarity of the dc output from these terminals and indicate the polarity for the applied dc supply In Out the signal direction for the in phase condition Note All relays have standard Midos terminal blocks to which connections can be made with either 4mm screws or 4 8mm pre insulated snap on connectors Two connections can be made to each terminal R8507D Service Manual Page 26 106 KAVR 100 3 1 Auxiliary supply The auxiliary voltage may be ac or dc provided it is within the limiting voltages for the particular relay The voltage range will be found on the front plate of the relay it is marked Vx 24 125V 48 250V An ideal supply to use for testing the relays will be 50V dc or 110V ac because these values fall within both of the auxiliary voltage ranges The supply should be connected to terminals 13 and 14 only To avoid any confusion it is recommended that the polarity of any applied voltage is kept to the Midos standard For dc supplies the positive lead connected to terminal 13 and the negative to terminal 14 For ac supplies the live lead is connected to terminal 13 and the neutral lead to
144. two cases There is no shorting contact across the case terminals connected to the break contact of the watchdog relay Therefore the indication for a failed healthy relay will be cancelled when the relay is removed from its case If the relay is still functioning the actual problem causing the alarm can be found from the alarm records in the SYSTEM DATA column of the menu see Section 2 4 2 Unconfigured or uncalibrated alarm For an UNCONFIGURED alarm the relay logic is stopped and no longer performing its intended function For an UNCALIBRATED alarm the relay logic will still be operational but there may be an error in its calibration that may require attention It may be left running To return the relay to a serviceable state the initial factory configuration will have to be reloaded and the relay recalibrated It is recommended that the work be carried out at the factory or entrusted to a recognised service centre Setting error alarm A SETTING alarm indicates that the area of non volatile memory where the selected relay settings are stored has been corrupted The current settings should be checked against those applied at the commissioning stage or any later changes that have been made Service Manual R8507D KAVR 100 Page 89 106 9 3 4 9 4 9 4 1 9 4 2 9 5 If a personal computer is used during commissioning then it is recommended that the final settings applied to the relay are copied to a floppy disc with
145. ure 29 Figure 30 Figure 31 Figure 32 R8507D KAVR10001x1xJEG gt xJEH Nov 1997 to July 1998 105 KAVR10001x1xJEH gt July 1998 to date 106 KAVR10002x1xJEA gt May 1999 to date 106 REPAIR FORM Response of Fourier filtering 18 Frequency response for single voltage input 19 Connection to opto isolated control inputs 26 Terminal arrangement for communications 27 Front plate layout 28 Menu system of relay 30 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 46 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 47 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 48 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 49 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 50 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 51 Scheme logic diagram KAVR 100 No 08 KAVR 100 01 52 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 53 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 54 Relay settings KAVR 100 factory default settings Drg No 08 KAVR 10001 55 Relay settings KAVR 100 factory default settings Drg No 08 KAVR 10001 56 Scheme Logic Diagram KAVR 102 Drg No 08 KAVR102 01 57 Scheme Logic Diagram KAVR 102 Drg No 08 KAVR102 01 58 Scheme logic diagram KAVR 102 Drg No 08 KAVR 102 01 59 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 60 Scheme logic diagram KAVR 100 Drg No 08 KAVR 100 01 61 Scheme logic diagram KAVR 100 No 08 KAVR 1
146. ut is dead and the bus VT input is live software contact which is closed when the bus VT input is dead and line VT input is live N O software contact which is closed when the line VT and bus VT inputs are both dead software contact which is closed when line VT and bus VT inputs meet the selected phase angle measurement criteria N O software contact which is closed when line VT and bus VT inputs meet the selected system angle measurement criteria N O software contact which is closed when line VT and bus VT inputs meet the selected system split measurement criteria Software contact N o or N C depending on setting of CSS FN link C which operates when either line VT or bus VT volts is below the selected undervoltage setting Software contact N O or N C depending on setting of CSS FN link E which operates when voltage magnitude difference between line VT and bus VT is above the selected differential voltage setting Permanently closed software links Note 1 Logic is one way only left to right in horizontal contacts and links Logic flow is both up and down in vertical links Figure 29 Ladder diagram symbols Drg No 08 KAXX 00 sheet 1 Service Manual KAVR 100 7 1 7 1 1 7 1 2 R8507D Page 69 106 Ub OE C 4 H H i RES otc Ladder Diagram Symbols Column 7 Software relay Operates when
147. ute dc supply ac 50 60Hz Maximum 24 125V ac dc 19 150 50 133V 190V crest 48 250V ac dc 33 300V 87 265V 380V crest Frequency Fn Nominal Rating Reference Range Frequency tracking 50Hz or 60Hz 45 65Hz Non tracking Non tracking 47 51Hz or 57 61Hz Opto Isolated Inputs Nominal Rating Reference Range Supply 50V dc only 25 60 dc only Outputs Field voltage A8V dc current limited to 60mA R8507D Service Manual Page 70 106 KAVR 100 7 2 Burdens 7 2 1 Voltage circuits 0 012VA at 110V 0 15VA at 327V 0 87VA at 440V 7 2 2 Auxiliary voltage DC supply 2 75 3 0W at Vx max with no output relays or logic inputs energised 4 0 4 5W at Vx max with 2 output relays and 2 logic inputs energised 7 6 8 6W at Vx max with all output relays and logic inputs energised AC supply 4 5 9 0VA at Vx max with no output relays or logic inputs energised 6 0 12 0VA at Vx max with 2 output relays and 2 logic inputs energised 7 5 20 0VA at Vx max with all output relays and logic inputs energised 7 2 3 Opto isolated inputs DC supply 0 25W per input 50V 10ky 7 3 Setting ranges 7 3 1 Autoreclose settings Timer setting range The default setting range for all timers is 0 01 to 9999 seconds More restrictive limits may be applied to each timer See the scheme documentation for details Counter setting range The default setting range for all counter settings is 1 to 9999
148. utputs and software relays Software scheme function links Other elements TECHNICAL DATA Ratings Inputs Outputs Burdens Voltage circuits Auxiliary voltage Opto isolated inputs Setting ranges Autoreclose settings Check synchronism settings Measurement displayed Ratios Accuracy General for reference conditions Influencing quantities Opto isolated control inputs Contacts Operation indicator Communication port High voltage withstand Insulation Impulse IEC 60255 5 High frequency disturbance IEC 60255 22 1 2 Fast transient IEC 60255 22 4 Static discharge test ANSI IEEE standards C36 90 Environmental Temperature IEC 60068 2 3 Humidity IEC 60068 2 3 Enclosure protection IEC 60529 Vibration IEC 60255 21 1 Mechanical durability Model numbers Service Manual KAVR 100 44 44 45 45 45 69 69 69 69 70 70 70 70 70 70 70 72 72 72 72 73 74 74 74 75 75 75 75 75 75 75 75 75 75 75 76 76 76 76 Service Manual KAVR 100 8 COMMISSIONING 8 1 Commissioning preliminaries 8 1 1 Quick guide to local menu control 8 1 2 Terminal allocation 8 1 3 Electrostatic discharge ESD 8 1 4 Inspection 8 1 5 Earthing 8 1 6 Main current transformers 8 1 7 Test block 8 1 8 Insulation 8 2 Commissioning test notes 8 2 1 Equipment required 8 3 Auxiliary supply tests 8 3 1 Auxiliary supply 8 3 2 Energisation from auxiliary voltage supply 8 3 3 Field voltage 8 4 Measurement checks
149. ve bus 1 enable AR with dead line live bus D O disable AR with live line dead bus 1 enable AR with live line dead bus D 0 D enable AR with dead line dead bus disable AR without system check D enable AR without system check disable ManCl with synch check 1 enable ManCl with Sys Angle check D 0 disable ManCl with dead line live bus 1 enable MCI with dead line live bus D disable ManCl with live line dead bus 1 enable MCI with live line dead bus D 0 disable MCI with dead line dead bus D 1 enable MCI with dead line dead bus disable AR with dead line dead bus disable ManCl without system check D 1 enable without system check Service Manual KAVR 100 2 9 2 10 2 10 1 Timer Setting Ranges R8507D Page 13 106 Menu column headed TIMER SETTINGS includes fourteen user adjustable timer settings as described below Display Name TMR Dead Time 1 TMR Dead Time 2 TMR Dead Time 3 TMR Dead Time 4 TMR Close Pulse TMR Reclaim Time TMR SynCh Window TMR SprCh Window TMR Mancl AR Inh TMR Tripfail Tim Exc Frq TMR Autoreset TMR C Ld Pickup TMR LineV Memory Counters Description First shot dead time Second shot dead time Third shot dead time Fourth shot dead time Maximum waiting time for CB to close when signal is given Reclaim time Ma
150. ver if it becomes necessary to withdraw a module the precautions should be taken to preserve the high reliability and long life for which the equipment has been designed and manvfactured 1 Before removing a module ensure that you are at the same electrostatic potential as the equipment by touching the case 2 Handle the module by its front plate frame or edges of the printed circuit board Avoid touching the electronic components printed circuit track or connectors 3 Do not pass the module to another person without first ensuring you are both at the same electrostatic potential Shaking hands achieves equipotential 85070 Service Manual Page 2 106 KAVR 100 1 3 1 4 1 5 4 Place the module an anti static surface on a conducting surface which is at the same potential as yourself 5 Store or transport the module in a conductive bag If you are making measurements on the internal electronic circuitry of an equipment in service it is preferable that you are earthed to the case with a conductive wrist strap Wrist straps should have a resistance to ground between 500k If a wrist strap is not available you should maintain regular contact with the case to prevent a build up of static Instrumentation which may be used for making measurements should be earthed to the case whenever possible More information on safe working procedures for all electronic equipment can be found in BS5783 and IEC 60
151. xiliary expansion board in place Unplug the PCB from the front bus as described for the processor board and withdraw Replace in the reverse of this sequence making sure that the screen plate is replaced with all four screws securing it Replacing output relays and opto isolators PCBs are removed as described in 10 3 1 b and c They are replaced in the reverse order Calibration is not usually required when a PCB is replaced unless either of the two boards that plug directly on to the left hand terminal block is replaced as these directly affect the calibration Note This CB is a through hole plated board and care must be taken not to damage it when removing a relay for replacement otherwise solder may not flow through the hole and make a good connection to the tracks on the component side of the PCB Replacing the power supply board Remove the two screws securing the right hand terminal block to the top plate of the module Remove the two screws securing the right hand terminal block to the bottom plate of the module Unplug the back plane from the power supply PCB Remove the securing screw at the top and bottom of the power supply board Service Manual R8507D KAVR 100 Page 93 106 10 3 4 10 4 10 5 Withdraw the power supply board from the rear unplugging it from the front bus Reassemble in the reverse of this sequence Replacing the back plane size 4 amp 6 case Remove the two screws securing the right
152. ximum waiting time for system safe to close signal at end of dead time Lockout if not satisfied Max waiting time for spring charged signal at end of dead time Lockout if not received AR initiation inhibit period after manual CB close Maximum waiting time for CB trip and protection reset after AR initiation by protection operation Fault trip counting period for excessive fault frequency logic Auto reset time from lockout if FNCT 8 1 Cold load pickup time Line volt memory timer see Main Operating Features Line voltage interlock Setting Range sec 0 01 300 1 0 300 1 0 9999 1 0 9999 0 01 10 0 1 0 600 0 01 9999 0 01 600 0 01 300 0 01 300 0 01 9999 1 0 9999 1 00 9999 0 01 100 Counter related logic functions involve counter registers and settings see below Scheme logic compares counter register contents with reference values as required and updates counter values for display via the user interface Counter registers coils or resets Counter registers are incremented and reset by specific logic events and can also be reset to zero via the menu column headed RESET COUNTERS Display Name RST Sequence Cnt RST ExFltFrq Cnt Description AR initiations counter for sequence control auto reset at end of AR cycle volatile Fault trips counter for excessive fault frequency logic auto reset at lockout or excessive fault frequency
153. ycle SEQUENCE END TOTAL Time tag and counter RST Total Reclose value RECLOSURES at finish of last auto reclose cycle Local EVENT RECORDS Display Associated data EVR SeqTm Shots t total cycle time and n number of t en reclosures in last AR cycle Synchronism Check Voltage Monitor The KAVR relay incorporates two voltage transformers for measuring line and busbar voltages see under Measurement below The scheme logic includes software comparator modules to make various comparisons between line and bus voltages as described below Phase angle comparison synchronism check applied when selected by scheme function link FNCT 22 to supervise auto reclosing System angle comparison synchronism check applied when selected by scheme function link FNCT 27 to supervise manual CB closing Dead line live bus comparison applied when selected by scheme function link FNCT 23 to auto reclosing or when selected by scheme function link FNCT 28 to manual CB closing Live line dead bus comparison applied when selected by scheme function link FNCT 24 to auto reclosing or when selected by scheme function link FNCT 29 to manual CB closing Dead line dead bus comparison applied when selected by scheme function link FNCT 25 to auto reclosing or when selected by scheme function link FNCT 30 to manual CB closing Synchronism check and voltage monitor settings are accessed in the menu column headed CHECK SYNCH STGS

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