LMVP 12kV Indoor Switchgear
Contents
1. Il o iy i Circuit connected voltage transformer in the isolated position showing the secondary isolating contacts in the safety shutter Voltage Iransformers Voltage transformers with silica filled epoxy resin encapsulated primary windings are available as either i fixed units ii withdrawable units They can be connected to either the circuit or to the busbars The voltage transformers comply with BS AS and IEC standards i Fixed Voltage Transformers The fixed voltage transformers are installed in sets of single phase units above the current transformer chamber Primary fuses are fitted and are accessible through a lockable shutter ii Withdrawable Voltage Transformers The withdrawable voltage transformers are of the isolatable type and either single or 3 phase up to a maximum of 3 x 1 phase They can be mounted onto a withdrawable carriage for either busbar or circuit applications Refer Technical Specifications page 14 Padlocking facilities are provided in both the service and isolated positions Quality Reliability Flexibility Safety Circuit connected voltage transformer in the service position A circuit connected voltage transformer is connected to the circuit side of the current transformers so that it is included in the zone of the protection equipment Busbar voltage transformer connectors are directly coupled to the busbars Voltage transformers are in a t2. J RPS Sues Reliability and safety you can trust Introduction To LMVP 12kV Switchgear Vertically Isolated and horizontally withdrawable switchgear The LMVP switchgear enables the easy distribution of Medium Voltage Electrical Power through Networks to the Consumer There are 3 ratings of circuit breaker in the LMVP range 630 800amp 1250 amp and 2000 2500 amp General Description The switchgear is housed in a Fixed Enclosure B Control Section This is a rigid sheet steel cubicle consisting of The control section houses the relays and control four main sections equipment protection relays and instruments See page 6 A Busbar and Current Transformer Chamber D Circuit breaker Compartment This chamber contains the three phase copper busbars and the The bottom section houses the LMVP current transformers circuit breaker See page 4 Guide rails allow smooth safe and easy entry and removal of circuit breakers ensuring accurate location in the correct position C Cable Box See page 8 Air insulated cable boxes for heat shrink cable termination See page 7 LMVP Panel without voltage transformer showing the circuit breaker partially withdrawn The construction and design allows for complete Ratings of Switchgear interchangeability of compatible circuit breakers Rated Normal Current Amps 630 800 1250 2000 2500 Other compatible complementary products include 0 50 Ge 82 vacuum contactor
3. Fax 61 2 9684 0344 Sales rpsswitchgear com au Please refer to your local representative AFRICA Kenya 616 Runda Rise off Runda Grove Runda Niarobi Kenya Tel 254 71 563 2971 Fax 254 71 967 1212 Sales rpsswitchgear co za South Africa P O Box 7157 Bonaero Park 1622 Gauteng South Africa Ph 27 0 11 914 2395 Fax 27 0 8666 85324 AUTHORISED AGENTS Singapore Houston Electric Co Pte Ltd 55 Toh Guan Road East 06 01 Uni Tech Centre Singapore 608601 Tel 65 689 912 33 Fax 65 689 945 66 Hong Kong Multi Premium Engineering Flat 6 G F Metro Centre Phase 1 32 Lam Hing Street Kowloon Bay Hong Kong Tel 852 2321 6133 Fax 852 2327 9570 liability and safety you can trust www rpsswitchgear co nz
4. achieved with an earthing switch situated between the rear cable box and circuit breaker compartment Its operation is managed by a rotating mechanical linkage assembly which extends to the front of the Circuit Breaker Compartment for ease of use The integral circuit earthing is rated to 20kA 3s oelector Gate The position may be padlocked to permit only authorized access to change the circuit breaker position and eliminate the risk of tampering Note user to supply Selector gate mechanism for circuit breaker padlocks www rpsswitchgear co nz Operating Mechanisms LMVP switchgear is supplied with either an RPM series or X series operating mechanism RPM is the latest generation X series is widely used and fully supported RPM amp X Series mechanisms are trip free The opening spring is charged during the closing operations The circuit breaker is opened with a mechanical actuator or electrically with a trip coil Current transformer a c or d c operated trip coils are available as required Padlocking facilities are provided to prevent manual trip and close operations Rotary spring loaded auxiliary switches are positively driven in both directions and are readily accessible to facilitate inspection and cleaning We use 3 types of operating mechanism for the 2 series RPS Git ern Reliability and safety you can trust sectional Panel Views Dt HUE 630 1250 Amp Panel 630 1250 AMP PANE
5. L A Voltage transformer orifice housing B Voltage transformer Withdrawable type Also available with fixed type single phase voltage transformers 1 2 or 3 Also available as busbar connected voltage transformer C Voltage transformer HV fuses D Current transformer chamber LV insulated for bar primary and epoxy resin encapsulated for wound primary CTs E Busbar Chamber F Connection shrouds G Control Section H Gear plate J Control gear mounted on control section door K Circuit earthing contacts L Busbar earthing contacts RPS Reliability and safety you can trust ie PELLI j gr 2000 Amp Panel M Orifice shutters N Selector gate mechanism controlling circuit breaker position P Circuit cable box air insulated Q Circuit breaker R Circuit breaker operating mechanism S Circuit breaker carriage T Multicore terminal block V Multicore cable gland plate 2000 AMP PANEL A Voltage transformer housing B Voltage transformer Fixed type 1 2 or 3 x single phase Also available with withdrawable 3 phase voltage transformer or 3 single phase assembly Refer to 630 1250A panel drawing Also available as busbar connected voltage transformer C Voltage transformer HV fuses D Current transformer chamber E Busbar Chamber F Connection shrouds G Control Section H Gear plate J Control gear mounted on control section door K Circuit earthing contacts L Busbar eart
6. LMVC Load Break Switch Rated Voltage kV 7 a 702002077772 LMLBS and Fuse Switch LMFS 12 12 12 12 Up to Up to Up to Rated Short Circuit Breaking Current 25 295 Ol 1 Panel Width mm 7774 Please ask for our Complementary LM Switchgear brochure for further information Quality Reliability Flexibility Safety ARPS 5 nsa Reliability and safety you can trust A Busbar And Current Transtormer Chamber Busbar Chamber The busbar chamber contains three phase copper busbars rated at 800A 1250A 1600A 2000A 2500A or 3000A Busbars are fully insulated throughout their length with high dielectric strength sleeving Joints are shrouded on direct panel to panel busbar connections so there are no interconnecting links The busbar and feeder orifice insulators which also incorporate the vertical connectors are moulded in silica filled epoxy resin which combines high mechanical strength with excellent insulating properties The connectors terminate in silver plated plug contacts which engage with the self aligning sockets on the circuit breaker Internal busbar end covers are fitted This enables extension panels to be moved into their final position fixed cabled up and made ready before the existing switchgear is made dead Outage time is therefore minimal The Mk II busbar arrangement eliminates cascade Mk 1 Busbar chamber with interconnecting v UAM heating effects and allows f
7. age over 24 hours Minimum Altitude Average relative humidity over 24 hours Finish Colour Standard Busbar Chamber Orifice insulators Busbars Joints Rated normal current Current Transformer Standards Orifice insulators Current transformers Either Or Joints IOMS Manual The Installation Operation Maintenance and Service manual is available on request in PDF format from RPS Switchgear Reliability and safety you trust IEC 62271 200 AS 62271 200 up to 12kV r m s 95kVp 28kV r m s r m s 50Hz up to 31 5kA up to 79 kAp 3 seconds 4 seconds 25kA 1 0 sec Metal clad approaching IPAX IPAX or higher to suit specific requirements Indoor 40 C without derating Not exceeding 35 C 5 C Not exceeding 1 000m Not exceeding 95 Epoxy powder paint coating after derusting degreasing and phosphating Pipeline grey shade AS2700 N43 Silica filled epoxy resin Tinned copper Heat shrink insulated Shrouded Epoxy filled or unfilled Up to 3000A IEC 60044 1 AS 60044 1 Silica filled epoxy resin a Low voltage insulated type mounted on a screened silica filled epoxy resign primary bar b High voltage silica filled epoxy resin encapsulated type including multi turn primary designs for low ratios Shrouded Voltage Transformer Standards Insulation Connected Types Burdens Accuracy class Circuit Earth
8. ers and relays can vary as much as 250kg www rpsswitchgear co nz 4 ED EBEN Nu T 1 Quality Reliability Flexibility Safety RPS a i E LMVP Switchboard Installation Powerco Main St Substation Contact us at your nearest RPS Switchgear office NEW ZEALAND AUSTRALIA Head Office Sydney Wellington Unit 28 38 46 South Street 7 17 Bouverie Street Rydalmere 2116 Petone NSW Private Bag 39811 Australia Wellington Mail Centre New Zealand Tel 64 4 568 3499 Fax 64 4 569 9688 Sales rpsswitchgear co nz EUROPE MIDDLE EAST amp ASIA 7 17 Bouverie Street Petone Private Bag 39811 Wellington Mail Centre New Zealand Tel 64 4 568 3499 Fax 64 4 569 9688 Sales rpsswitchgear co nz Tel 61 2 9684 0333
9. hing contacts M Orifice shutters N Selector gate mechanism controlling circuit breaker position P Circuit cable box air insulated Q Circuit breaker R Circuit breaker operating mechanism S Circuit breaker carriage T Multicore terminal block V Multicore cable gland plate www rpsswitchgear co nz Busbar Dimensional Drawings MAOZ Single Busbar Single Busbar Double Cable Box Single Cable Box MAOZ NOTE 3 Double Busbar Single Cable Box For special configurations of panels refer to RPS Switchgear Overall Dimensions Widths shown apply to both single and double busbar panels Note 1 Note 2 Note 3 2 100mm small height control section Distance required for circuit breaker Distance required for access depends 2 400mm medium height control section removal on cabling requirements 700 for 630 1250 Amp panels 1 200mm for 2000 2500 Amp panels Quality Reliability Flexibility Safety ARPS SIT I S Reliability and safety you can trust Technical Specification Type LMVP Switchgear Standards Rated voltage Rated insulation level Lightning impulse withstand 1 minute power frequency withstand Additional tests Rated frequency Rated short time withstand current Rated peak withstand current Rated duration of short circuit Additional test Internal fault type tested Construction Standard Optional Degree of protection Normal service conditions Ambient air temperatures Maximum Aver
10. hree limb configuration for directional protection A positively driven shutter automatically covers the fixed isolating contacts when the voltage transformer is isolated and provision is made to allow padlocking the shutter in this position Busbar shutters are clearly labeled BUSBARS and are painted signal red 5381 colour 537 The circuit shutters are labeled CIRCUIT and painted lemon BS381C colour 355 To protect the primary windings high voltage cartridge type fuses are fitted into the primary bushings of the voltage transformer These can be removed only when the transformer is isolated Secondary HRC fuses are mounted on the top of the voltage transformer for easy access ARPS Reliability and safety you can trust B Control Section Control Section The height of the control section can be extended to suit customer requirements Standard overall dimensions are shown on pages 12 and 13 Control units including the gear plate can be removed if required Relays instruments control switches and indicator lamps are mounted on a removable hinged door which when opened allows access to the connections The fuses terminals and other control equipment are located behind the door HRC fuses are fitted to control circuits as standard All secondary wiring is carried out in PVC insulated cable with numbered ferrules Control amp Indication Cable Terminal Blocks Terminal blocks for external con
11. ial is used in the interrupters to minimise contact erosion The added contact load spring assembly gives indication that the erosion limit has been reached ISOLATING E PE CONTACTS LJ I CIRCUIT BREAKER GUIDE addi PINS FIXED CONTACT BLOCK EPOXY RESIN HOUSING VACUUM _ DOUGH gt MOULDING __ HOUSING MOVING SLIDING edet CONTACT CONNECTOR BOTTOM COVER lt OPERATING SHAFT BUFFER 7 V DE ASSEMBLY MAIN OPERATING SHAFT The interrupters have a typical life expectancy of 10 000 mechanical operations 10 000 load current operations and up to 100 fully rated short circuit operations Interrupter replacement and resetting are achieved without the need for special tools RPS GU eR Reliability and safety you can trust D Circuit Breaker Compartment Orifice Safety Shutters Substantial safety shutters actuated by the raising or lowering of the circuit breaker automatically expose or cover each 3 phase set of fixed isolating contacts Each shutter may be individually operated and padlocked in the F closed position There Circuit breaker compartment showing the orifice safety shutters and associated operating mechanism Is provision to allow either shutter to be fixed but not padlocked in the open position for testing Insertion of the circuit breaker
12. ing Busbar Earthing Testing IEC 60044 2 AS 60044 2 Silica filled epoxy resin Busbar or circuit withdrawable or fixed Up to 3x1 phase up to 200 per phase 0 2 0 5 or 1 0 By transfer circuit breaker method Optional interlocked earthing switch By transfer circuit breaker method High voltage test bushings can be inserted into de energised circuit or busbar orifices Type LMVP Vacuum Circuit Breaker Standards Rated voltage Rated lightening impulse withstand voltage Rated frequency Rated normal current Rated duration of short circuit Additional test Rated short circuit breaking current d c component Rated short circuit making current Rated out of phase breaking current Rated cable charging breaking current Rated single capacitor bank breaking current Rated transformer magnetising current Operating sequence Mass kg Rated normal current Amp Circuit breaker on carriage Enclosure complete with circuit breaker Single busbar Enclosure complete with circuit breaker Double busbar Extra for voltage transformer including housing 3 phase 3 x 1 phase IEC 62271 100 AS 62271 100 12kV 95kVp 50 60Hz 630 800 1250 2000 2500A 3 seconds 4 seconds 25 31 5kA 34 79kAp 6 25kA at 13 9kV 25A 400A 6 3A O 0 3s CO 15sec CO 630 800 1250 2000 2500 200 200 230 315 315 520 550 580 930 940 700 730 760 1450 1460 160 90 These masses are approximate as current transform
13. into its enclosure cancels this feature and automatically restores the normal operation of the shutters Busbar shutters are clearly labeled BUSBARS and are painted signal red BS381C colour 537 The circuit shutters are labeled CIRCUIT and painted lemon 5381 colour 355 Closed Door Operation This option provides additional operator safety during racking of the VCB Full behind closed door operation can be offered to include both racking and shooting bolt operation e ARPS Ss Reliability and safety you can trust Circuit or Busbar Earthing Circuit Breaker Transfer earthing is supplied as Standard The option of integral circuit and or busbar earthing is available if required and details should be specified when ordering These faciliities are provided through the circuit breaker without the use of loose attachments The transfer breaker method of earthing is used whereby the circuit breaker compartment when fully raised is connected to the main isolating plugs of the side to be earthed and to the appropriate set of three fixed copper plug contacts These are solidly earthed by a common bonding strip Closing the circuit breaker completes the operation For dependent power operation secondary connections for the closing circuit are available in both earthing positions but the circuit breaker can only be tripped manually Integral circuit earthing switching of the cable can also be
14. ker compartment immediately below the selector gate Depending on the requirement 12 18 or 24 contacts can be fitted These contacts remain connected when the circuit breaker is locked in either the raised or the lowered position The trip circuit secondary isolating contacts are not connected in the busbar earth or circuit earth positions on the enclosure so the circuit breaker cannot be automatically tripped during closing or when closed in either earthing position Circuit Breaker Description The RPM series LMVP circuit breaker has 3 separate dough moulded resin housings containing the three vacuum interrupters which are air insulated and separated by perspex phase barriers Primary through bushings are also incorporated in the housing and at their upper end accommodate self aligning multi finger isolating contacts Guide pins are fitted to the top plate to ensure correct location of the circuit breaker and a copper contact provides positive earthing of the unit The LMVP vacuum circuit breaker is interchangeable with the Reyrolle Switchgear LMT oil circuit breaker The housing has moulded inserts which provide accurate and simple location of components The main operating shaft is coupled to the moving contacts of the interrupters through a drive insulator Current transfer is through multi laminated sliding contacts and the added contact load in the closed position is provided by disc springs Copper chrome contact mater
15. nections are located at the top of the control compartment The multicore terminal block can be used for interpanel wiring The cable gland plate is drilled on site at time of installation to suit the size of multicore cable or cables and glands ET UTI i gag lt i Er EN d 1 Control amp Indication Cable Terminal Blocks Photo of interior view of control section www rpsswitchgear co nz ARPS SWIG Nn Reliability and safety you can trust C Cable Box Cable Boxes Circuit cable boxes are mounted to the back of the current transformer chamber Air insulated cable boxes for heat shrink cable termination as used with proprietary terminations are standard Modular construction means the air insulated cable boxes can be assembled to form single double or triple arrangements simply by adding extra modules All cable boxes can be supplied with gland arrangements to take cables of various types and sizes for bottom top or angled entry Maximum size of paper or plastic insulated cables vertically downwards or vertically upwards for air insulated boxes with heat shrink terminations are as follows Single cable box with circuit connected voltage transformer housing fitted Covers removed to show Single Cable box without voltage transformer Covers internal details removed to show internal details Single top entry cable box Cable Box type and Cable Opti
16. omatically prevented when the circuit breaker is closed c The closing of the circuit breaker except when correctly located in the service earth or isolated position or alternatively when the circuit breaker is withdrawn from the enclosure d A circuit breaker from being withdrawn or replaced except when it is isolated and in the appropriate location for withdrawal or replacement e A circuit breaker being closed in the service position when the secondary circuits between the fixed and moving portions are not completed a b and c are hand controlled by a lever at the front of the circuit breaker with positions labeled Isolating Mechanism free or locked and Locating Bolt free or locked This locating bolt mechanism cannot be raised except when the secondary circuits are complete on this arrangement oecondary Connections Secondary connections between the circuit breaker and the fixed portion are made by a plug and socket which is mounted on the right hand side of the circuit breaker Up to 24 pins can be used safety interlocks ensure that the circuit breaker cannot be raised into any operating position until the secondary plug is engaged in the socket Electrical interlocks isolate the trip circuit when the circuit breaker is raised into a busbar earth or circuit earth position Alternatively self aligning secondary isolating contacts can be fitted to the right hand side of the circuit brea
17. ons Rated Normal Current Amps 630 800 1250 2000 2500 1x3 up to 400mm 1 core up to mm E or 3x1 core up to 680mm 2x3 core up to 400mm Up to 3x3 core up to 400mm Double box or 6x1 core up to 630mm or Up to 12x1 core up to 630mm 3x3 core up to 400mm Triple box 12x1 core up to 630mm Note 1 Busbar end cable boxes and 12x1 core cable boxes are available Note 2 Armoured cables can be accommodated up to 1000mm for single core cable and 240mm for core cable ARPS Reliability and safety you can trust Quality Reliability Flexibility Safety A RPS SUE s Reliability and safety you can trust Vacuum Circuit Breaker There are three ratings of circuit breaker available 630 800 Amp 1250 Amp and 2000 2500 Amp The 2000 2500 Amp model has paralleled primary through bushings and a single interrupter per phase The circuit breaker is mounted on a steel carriage having four flanged wheels to facilitate location within the enclosure A central screw mechanism operated by a removable handle is provided for raising and lowering the circuit breaker oafety Interlocks Clearly labeled mechanical interlocks are provided to prevent the occurrence of a A closed circuit breaker from being withdrawn from or inserted into the isolating contacts b Tripping by attempted isolation Access to the raising and lowering mechanism is aut
18. or higher busbar ratings position Busbar connected VT risers can also be seen of 2000 3000A type is rated up to 2500A Mk 11 busbar chamber Current Transformer Chamber This chamber houses the current transformers which may be I low voltage insulated mounted on an insulated primary bar ll silica filled epoxy resin insulated either bar or wound primary type depending on the ratios and outputs required Current transformers comply with IEC 60044 1 and AS 60044 1 One side of the primary connection is solidly connected to the vertical connectors with silver plated contacts moulded into orifice insulators The joints are shrouded These plug into the Current transformer chamber top view second set of sockets on the circuit breaker The current transformers have the specified output and accuracy under rated load conditions but are also capable of withstanding for a specified time the effects of the shortcircuit fault current within the breaking capacity rating of the switchgear The minimum ratios available are largely dependent upon factors such as the short circuit fault current the type and timesetting of the protection specified the total burden and the number of current transformers to be accommodated Primary bars without current transformers fitted can also be supplied ARPS SU Es Reliability and safety you can trust www rpsswitchgear co nz Voltage Transformer Chamber E
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