the manual of EMRI EME_AVR_RAIL
Contents
1. Voltage regulator for generators January 2006 Instruction Manual I Generator rewinding amp repair Voltage regulator products EME_VD_Manual_V1_31 doc WARNINGS WARNING The system should not be installed operated serviced or modified except by qualified personnel who understand the danger of electric shock hazards and have read and understood the user instructions WARNING Never work on a LIVE generator Unless there is another person present who can switch of the power supply or stop the engine WARNING Dangerous voltages are present at the voltage regulator board Accidental contact with live conductors could result In serious electrical shock or electrocution Disconnect the power source before making repairs connecting test instruments or removing or making connections to the voltage regulator or generator ELECTRICAL HAZARDOUS VOLTAGES DANGEROUS DO NOT OPERATE WHEN NOT FAMILIAR WITH GENERATORS The manual does not cover all technical details of the product Specifications may be modified by the manufacturer without notice For further information the manufacturer should be contacted Version 1 25 2006 9 25 00 Page 2 of 19 Generator rewinding amp repair Voltage regulator products Table of contents WARNINGS Chapter 1 Introduction 1 0 1 1 1 2 1 3 General description AVR Layout Absolute maximum ratings Commissioning information Chapter 2 Installation and2. 10 Critical error Reduce RPM Check ventilation Clean housing Replace AVR Note 1 For a successful selftest a minimum remanent voltage of 11V phase phase has to be present Table 3 Error codes and solutions Version 1 25 2006 9 25 00 Page 10 of 19 ZMR zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 2 3 ADJUSTING AND FACTORY SETTINGS When delivered the AVR is ready to use with pre set factory settings These settings are explained in table 4 It is not advisable to change these settings because changing the factory settings can damage the generator and cause high voltage Adjusting may only be done by qualified personnel who understand the danger of electric shock hazards and have read and understood the user instructions Factory default Turning CW Turning CCW Voltage setpoint Increase the Decrease the Adjust the output voltage output voltage generator output voltage Factory default Turning CW Turning CCW P action setpoint Ue Increase the Decrease the Adjust the P action Proportional gain Proportional gain control action action characteristic Factory default Turning CW Turning CCW action setpoint aii Increase the Decrease the Adjust the l action Integral action Integral action control characteristic Factory default Turning CW Turning CCW Droop setpoint Increase the Decrease the Adjust the voltage amount of voltage amount of voltage droop f
3. Closed when AVR operational Overtemperature when open Table 2 Connecting diagram Version 1 25 2006 9 25 00 Page 8 of 19 EMRI zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 2 1 Running state and LED error codes Cr Important By removing the 110V 24V power supply error codes will be lost To read out the error code the 110Vac or 24Vac power supply must remain connected after an error occurred In order to reset the AVR remove the 110Va or 24Vac power supply for at least 5 seconds Green LED off Diagnose fault AVR AVR not running Green LED on No diagnose fault AVR running Red LED Fault and error AVR not running Table 2 LED status and corresponding error codes No of Blinks Red LED Error ERE rU NN Green LED off Green LED On LED On LE LL EL LL yd yt dd Operational contact selftest HEHEHE failure Undervottage 280 NI DJ ILLI HN ILLI NI DJ ILLI Supply relais selftest failure Undervoltage 340V 1s Sa HHHH B BRR Overvoltage selftest failure Overvoltage 420V PT TTT TEE EEE EE EEE EEE Error reset selftest failure Overvoltage 440V gt 15 EN AU Overtemperature selftest failure Overvoltage 500V gt 0 1s ERR ial Measurement selftest failure Underspeed 45Hz gt 5 H
4. maintenance 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 Connection diagram Running state and LED error codes Power up routine and diagnose Adjusting and factory settings Special functionality Electrical characteristics Wiring diagram Fault diagnostics diagrams Factory settings General installation information Version 1 25 2006 9 25 00 Page 3 of 19 EME VD Manual V1 31 doc NO 0 A 10 11 12 12 13 14 17 18 I Generator rewinding amp repair Voltage regulator products EME_VD_Manual_V1_31 doc 1 INTRODUCTION 1 0 General description This manual contains instructions for installing operating and maintaining the EME VD automatic voltage regulator AVR The AVR is specifically designed for railway application according EN 50155 in combination with brushless generators 400 V 50 Hz It is however very applicable for generator installations where high demands for the accuracy and safety for the generator output are requested The AVR is equipped with security functions to protect the generator load and equipment from damage or dangerous situations Critical protections are implemented redundant The protection circuits as well as the operational status feedback interface contact are tested upon every power up before the generator is excited by the AVR The AVR is designed to meet the railway requirements described in the EN 50155 2004 rolling stock This contains the environmental aspects as well as t
5. 105mm 110V OV J1 UH VH UH VU C N 5 5mm 130mm PE Fig 2 Rear view of the AVR Measurements in mm 1 2 Absolute maximum ratings Symbol Parameter Condition Max Voltage sensing input lt 30 s 50 Hz 5900 0 Vac J1 K1 Field excitation current Typical 4 Aac 78 Aa j UH VH Supply input 1 or 3 phase 20 240 V UH VH or two 1 phase dc 400 Hertz 230 Vans 230 VUH VH rms m temperature non condensing non condensing NO C _ Operationaloutput 5A 30V DC m U sss 12 1168 Jae 0 24 supply __llsolated__ 18__ 38_ Vse__ st External Voltagust 5 o Sk Accuracy THD 59 1 Table 1 Absolute maximum ratings Version 1 25 2006 9 25 00 Page 6 of 19 ZMR zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 1 3 Commissioning information The system should not be installed operated serviced or modified except by qualified personnel who understand the danger of electric shock hazards and have read and understood the user instructions Defects in the generator or AVR may cause consequential loss Precautions must be taken to prevent this from occurring Never work on a LIVE generator Unless there is another person present who can switch of the power supply or stop the prime mover Dangerous voltages ar
6. 9 Generator rewinding amp repair Voltage regulator products 2 Fault diagnoses EME VD Manual V1 31 doc 420V Overvoltage Generator Voltage Operational Contact Red LED Generator Voltage Operational Contact Red LED Time j gt Version 1 25 2006 9 25 00 Page 14 of 19 Generator rewinding amp repair Voltage regulator products Generator Voltage Operational Contact Red LED Generator Voltage Operational Contact Red LED Generator Voltage Operational Contact Red LED EME VD Manual V1 31 doc 440V Overvoltage On i HH Hi IHil Off 1s 21s e gt Time j 340V Undervoltage gt 1s ss gt 500V overvoltage On Wi TD Off 0 1s 20 1s 2 gt Time Version 1 25 2006 9 25 00 Page 15 of 19 zM Generator rewinding amp repair Voltage regulator products Overspeed EME VD Manual V1 31 doc Generator speed BN OHz On Operational Contact Reg O LED O
7. HHH HHH HH EE LLL LL B B B Bg B BG Phase loss selftest failure Overspeed 55Hz PT TTT TT EER EEE SH Over temperature T36 T37 5s H Phase loss gt 0 15 PTT TTT Tee a a 36 37 gt 55 Critical Error 500V gt 0 15 Note Critical error is either Overvoltage or Overtemperature hardwired circuits Version 1 25 2006 9 25 00 Page 9 of 19 EMRI zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 2 2 Power up and diagnose 400V 390V e ae sss NU E Generator Voltage OV jz Green OF LED Operational n B Contact Off Self test Voltage build up Stable p p P Time For a successful self test a remanent voltage of at least 11 Vac phase phase and a frequenc between 45 and 55Hz have to be present Power up self test takes approximately 15 seconds ry Green LED off c Green LED on Ready Reason Solution 1 failure high load Check for short circuit high load AVR defect Replace AVR AVR defect Replace AVR AVR defect Replace AVR o Mesure PU Replace AVR Coupingdefect Replace coupling Replace AVR Coupling defect Replace coupling Coupling defect Replace coupling a Clean housing Short circuit Check short circuit
8. ables need to be laid across distance along other cabling shielded cable is preferred Keep the shield as long as possible and the wiring outside the shield as short as possible Do not solder or shrink the shield to a regular wire Connect the original shield to ground at one side with an as large as possible contact surface Version 1 25 2006 9 25 00 Page 18 of 19 ZMR zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc Additional installation information When the product is supplied by means of a transformer it should never be an auto transformer Auto transformers react as voltage sweep up coil and may cause high voltage peaks Standard fit capacitors or over voltage suppressers across F and F or exciter field terminals inside the generator should be removed When the product is supplied by means of a transformer it should be able to carry at least the maximum expected current Advisable is to have a transformer which can carry twice the maximum expected current Inductive loads make voltage sacks and peeks into the secondary voltage of a transformer from which the device may malfunction It is not recommended to apply switches in dc outputs It is preferred to use switches in the ac supply inputs of devices In case it is unavoidable to have switches in the dc output of a device action must be taken to avoid over voltage damage to the device due to contact arcing Use a voltage suppr
9. e present at the voltage regulator board Accidental contact with live conductors could result in serious electrical shock or electrocution Disconnect the power source before making repairs connecting test instruments or removing or making connections to the voltage regulator The unit should be installed with respect to the environmental specifications as well as the rules mentioned in the General installation information For safety reasons the voltage LEVEL potentiometer is best turned completely counter clockwise in order to start at the lowest possible voltage Version 1 25 2006 9 25 00 Page 7 of 19 zM Generator rewinding amp repair Voltage regulator products EME_VD_Manual_V1_31 doc 2 INSTALLATION AND MAINTENANCE For safety reasons the voltage LEVEL potentiometers are best turned completely counter clockwise in order to start at the lowest possible voltage 2 0 Connection diagram For a complete wiring diagram see figure 4 on page 12 Of EME VD REG Remove bridge when using external D Voltage trm Ready Eror 06 KXJDD 110V J1 UH VH UH VH C NO 0 0 0 0 0 09 0 0 9 Fig 3 Connectors top and rear view Notes 0 5 Aac max Vphase When used remove bridge 24 Vac also available
10. essor across the output It is not recommended to apply switches or fuses in the sensing lines Defects can cause high voltage situations due to over excitation When using a step down transformer in medium or high voltage generators the transformer should be three phase if three phase sensing and the transformer should be suitable for acting as a sensing transformer If the transformer is unloaded connect a resistor to avoid voltage waveform distortion The phase relation from the generator to the AVR is important Also when voltage transformers and or current transformers are installed When using a step down or insulation transformer in the droop circuit phase relation from the generator to the AVR is important CT s wiring connected to the AVR should never be grounded Always disconnect electronic products circuits and people before checking the insulation resistance Megger check Due to differences in generators impedance s EMC behavior is not predictable Therefore the commissioner installer should be aware of proper and correct installation Large highly inductive exciter stator windings can cause destructive high voltage peaks Adding a resistor from 10 to 20 times the exciter stator field resistance reduces voltage spikes If necessary filter can be fitted additionally e g snubber RC network Upon problems during commissioning faulty behavior or defects in the generator consult the fault finding ma
11. ff IA n 1 lt 1 lt K Time j gt Generator speed Operational Contact Red LED Open M n Clixon input Closec Operational Contact Off e 516 1525 gt 5 lt gt lt lt gt Time p gt Version 1 25 2006 9 25 00 Page 16 of 19 Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc Phase loss 400V Generator phase OV U Vor W AVR reference 230V Voltage Operational Contact D O x x x x LED ff gt 65 gt A BEES IV en 20 1s lt X 2 8 Factory settings After service or repair the AVR is re adjusted to factory settings which are Output Voltage 400 Under speed frequency Over speed frequency Dop 10 1 Version 1 25 2006 9 25 00 Page 17 of 19 ZMR zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 2 9 General installation information Absolute Maximum Ratings The Absolute Maximum Ratings are those limits for the device that if exceeded will likely damage the device Exceeding the absolute maximum ratings voids any warranty and or guarantee M
12. he electrical aspects such as EMC emission and immunity supply voltage range and overvoltage protections Under normal conditions the AVR is placed inside the generator but installation in cabinets is also possible The AVR is partly software controlled and deliverable with special functions such as soft voltage recovery at voltage dips upon switched on heavy loads when using soft prime movers such as a hydraulic motor The AVR is available for 0 110Vuac as well as 0 24 4 supply voltage Version 1 25 2006 9 25 00 Page 4 of 19 1 EMRI zM Generator rewinding amp repair Voltage regulator products 1 AVR Layout The AVR is protected from the environment by an epoxy coating The bottom of the AVR has a special Protective Earth PE connection surface shown as PE in figure 2 Connection terminals are locked by screws and are not exchangeable as a consequence of a coding system 180mm o OL EME VD REG 140mm 160mm Remove bridge when using external pot Meter D P V Ready Error Jo o o olele 202020700007 Fig 1 view AVR Measurements Version 1 25 2006 9 25 00 Page 5 of 19 EME VD Manual V1 31 doc EMR zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc AVR layout continued
13. ndensing 20 C to 0 C non condensing Storage temperature 30 C to 55 C non condensing 30 C to 55 C non condensing 5 Stresses above those listed under Absolute Maximum Ratings cause permanent damage to the device This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied Exposure to maximum rating conditions for extended periods may affect device reliability and lifetime Version 1 25 2006 9 25 00 Page 12 of 19 ZMR Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 2 6 Wiring diagram Volt trim 10 kO hm Remove bridge when using external D gt V Voltage trim Ready Error O 6 EME VD REG stability Faction stabilty droop Operational 0000000000 E ZEE Q0 60 09 6 6 6 6 Operational Enable N U GENERATOR OUTPUT ROTATION CLOCKWISE W V Version 1 25 2006 9 25 00 OPTIONAL DROOPKIT STATOR ROTOR EXCITER FIELD Fig 4 Wiring Page 13 of 1
14. nual at our web site Some advises may be overdone or seem extraordinary but since the electrical rules are the same everywhere these advises are given Version 1 25 2006 9 25 00 Page 19 of 19
15. or parallel droop droop operation Table 4 Adjusting AVR setting note CW Clock wise CCW Counter Clock wise Version 1 25 2006 9 25 00 Page 11 of 19 zM Generator rewinding amp repair Voltage regulator products EME VD Manual V1 31 doc 2 4 Special functionality The AVR has a unique feature of reducing the reference voltage When a heavy load is switched on and the generator output voltage decreases below 370 the AVR lowers the reference voltage to 370 When the generator voltage is equal to the AVR reference voltage again the AVR builds up to the normal voltage output threshold level again This feature prevents the generator from producing a voltage overshoot due to heavy load switches in combination with an over magnetized generator AVR reference Voltage Generator Voltage OV Off Time Voltage reference lowering due to heavy load change Not implemented on 24V version 2 5 Electrical characteristics VD 110 AVR EME VD 24Vac AVR sensing voltage input 3 x 400 V 50 Hz 3 x 400 V 50 Hz Supply input 85V 100Vac 100 400 Hz 85V 100Vac 100 400 Hz UH VH UH VH Electronics supply 77 138 Vac 18 39 Vac 0 110V4 0 24Vac Field excitation current 3 7 A Field resistance 6 100 6 100 Voltage setpoint range Operational contact 30V 5 30V 5 Ambient temperature 20 C to 0 C non co
16. ounting Mounting of the product should be done in such a way that the absolute maximum ambient temperature rating of the product will never be exceeded Mounting of the product should be done in such a way that maximum cooling direction of cooling ribs and direction of airflow is achieved Mounting of the product should be done in such a way that no humid air can flow through the product or condensation occurs Mounting of the product should be done in such a way that dust or other materials or residue will not remain in or on the product Mounting of the product should be done in such a way that the maximum vibration is not exceeded Mounting of the product should be done in such a way that personal contact with persons is impossible Wiring Diameter size of the wiring should be enough to carry the expected current Wire insulation should be enough to withstand the expected operating voltages and temperatures To improve EMC emission and immunity care should be taken for the lay out of the wiring This in respect to all wiring in the installation Keep current carrying wires as short as possible Keep wires carrying a total sum of zero Ampere close to each other or in one single cable E g U V W or F and F or Phase and neutral X1 and X2 Avoid current carrying conductors next to sensing or control wiring Especially current controlled by SCR s or PWM controlled transistors If sensitive sensing signal c
Download Pdf Manuals
Related Search