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Reclosers S280-40-5

1. manm C T H TE E T oam A iw Fa Ja 9 8 mam 8 a 5 wg AC T m 4 oe X DHL nans eT EI Hem n a x Ritig o ou umo d Dee hir i mpm Te rt D E 58 E pr xb os E gs Components of Arc Interrupter Assembly Type RVE Recloser CONTACT UT pi ANIMI 2 WASHER BETAIMIN Ri lt 5 DO NOT GROVE PD DONTACT TUBE CONTACT Lem 5 5 PACE GAETER Sime Se CONTACT CONTAEC TAREE ARM lt m FILLISTER E 9 SPACER EM 0 SMOCK 5288 Figure 8 Stationary Contact Assembly Components Type RVE Recloser 806 8 SHOP MAINTENANCE CONT D 9 1 Reassemble the stationary contacts in the follow ing manner Place the four contact arms around the contact retainer fillister screw and internal spacer Each of the four teeth on the retainer should fit into a hole on a contact segment Place the garter spring contact springs and spring spacers over the small end of the assembly in the following order garter spring spring spacer contact spring spring spacer and contact spring Slip the shock absorber ring over the opposite end Insert thi
2. E 25 Page 30 PARTS LIST HEAD MECHANISM TYPES RVE AND WVE RECLOSERS 5280 40 52 Page 31 PARTS LIST HEAD MECHANISM TYPES RVE AND WVE RECLOSERS Item No 78 88 89 90 106 110 Description Contact and toggle support assembly Toggle pin Retaining ring 5133 37 Type E Shaft Spacer Spacer Retaining ring WA520 Toggle assembly Reclosing shaft order only with items 87 88 and 89 Roll pin 1 8 X 1 1 4 Ig order only with items 86 88 and 89 Toggle driver order only with items 86 87 and 89 Roll pin 3 32 X 1 1 4 10 order only with items 86 87 and 88 Machine screw 10 32NF2 x 1 1 4 Ig rd hd stl cad Switch driver Machine screw 1 4 20NC2 x 1 1 4 Ig rd hd stl cad Lockwasher 1 4 med Spacer Switch toggle assembly Spacer Stop nut elastic 10 32NF2 Spacer Spacer Stop nut 10 24NF 3 elastic Reset lever Reset lever Spacer Reset arm and pin assembly Washer 1 4 x 0 375 x 0 031 thk brass cad optional Bolt Cam Rail pin 1 8 x 1 Ig Washer Retaining ring 5133 62 Type E Mounting bracket Catalog Number KA361R KP273R KP86 KP1198R KP3009A18 KP3009A22 KP100 KP450R KP295R KP1329R KP512 KP630 KP148R KP479 KP337 KP3007A15 KA428R KP3006A4 KP2020A1 KP3015A2 KP3015A3 KP2020A2 KP166R KP164R KP3011A4 KA17R KP346R KP187RE KP518 KP2028A
3. ose rs Cooper Power Systems Type RVE and WVE Three Phase 280 40 5 24 9 kv e 400 Amp Type RVE 560 Amp TypeWVE CAUTION DO NOT ENERGIZE THIS EQUIPMENT OUT OF OIL This manual bulletin S280 40 5 for Type RVE and WVE electronically controlled reclosers covers maintenance of the interrupting mechanism operational checks for circuit components attached to the head casting and mechanism frame i testing of the control cable and bushing current transformers replacement of mechanical and electrical com ponents replacement parts for the interruping unit A separate manual bulletin 280 75 2 is a service manual which covers the electronic control and provides information on general inspection operational checks and battery test ing and charging Procedures for testing the recloser and control together are found in the control installation manual bulletin S280 75 1 ORDER OF CONTENTS Page Page 011916 eR 1 Rating Changes crane treten 14 Description of Type Recloser 2 Adjustmietits ou eta ra 14 General Maintenance Information 2 Operational 14 Maintenance 2 Control Cables 15 Desirable Oil Specifications 4 Circuit
4. 15 Bushing Current Transformers 17 Periodic Field Inspection and Maintenance 4 Replacement Instructions for Shop enian 6 Circuit Components sse 18 Arc Interrupting Assembly Type RVE Reclosers 22 2 6 Service Parts List Arc Interrupting Assembly Basic Parts List Type WVE Reclosers 8 Types RVE and WVE Reclosers Closing S lenoid cie ete 9 Tank and Cover Assemblies 21 Closing Solenoid Contactor 10 Closing Solenoid 24 Closing Solenoid FUSES 10 Parts List for Interrupting Mechanism Bushings RVE 222422 26 Type RVE Recloser 11 Parts List for Interrrupting Mechanism Type WVE 11 Type WVE Recloser 27 Removal of Head Casting 12 Head Mechanism Parts List RVE and WVE Reclosers 28 Mechanism Operation 13 These instructions do not claim to cover all details or variations in the equipment procedure or process
5. LEVER Figure 5 Move trip lever to the right to release recloser when opening with closing tool 15 CONNECT CONTROL CABLE TO RECEPTACLE ON RECLOSER HEAD CASTING Place recloser in service according to procedures outlined in the recloser installation manual bulletin 5280 40 2 NOTE Electronic control can be checked out with or without recloser in service Periodic operational checks can be made according to the control service manual SHOP MAINTENANCE When shop maintenance or repairs are to be performed remove the ten bolts that secure the head casting to the tank With suitable hoist raise the recloser mechanism out of the oil and allow it to drain The recloser can be left suspended by the hoist inverted and placed on a workbench or the mechanism frame ends can be sup ported by a special rack ARC INTERRUPTER ASSEMBLY TYPE RVE RECLOSER See Page 8 for WVE Instructions After the RVE recloser has operated through a complete duty cycle the arc interrupter assembly should be com pletely dismantled and any worn parts replaced Refer to Figure 6 1 Remove the vibration proof nut that secures the moving contact yoke to the contact lift rod Two square spacer washers will be released TUBES SHOP MAINTENANCE CONT D SUPPORT STATIONARY PLATE CONTACT ASSEMBLY ART WTERRUPTER ASSEMALY LIFT FIGD CONTACTS CONTACT Figure 6 Arc int
6. Quantity Catalog Per Number Recloser KP567R 1 KP1368R 1 KP21 8 KA33RE1 1 KP2006A2 4 KP2006A1 2 KP678 6 KP994 6 KP144RE 4 KP145RE 8 KP3009A38 8 KP339 16 KP563 8 KP798 8 KP668 4 KP564 4 KP272 4 KP5339A1050 2 1 KP4022A36 1 KP4022A31 3 KP96GS 4 KP752 10 KP2028A23 10 KA867R 1 KA88W 1 KP2007A3 1 KA809R 1 KP2039A1 1 KP79 4 Page 24 PARTS LIST TYPE RVE AND WVE RECLOSERS 5280 40 52 Page 25 PARTS LIST TYPE RVE AND WVE RECLOSERS Quantity Item Catalog Per No Description Number Recloser 90 Retaining ring WA518 KP79 2 91 Insulating link for closing plunger KP103R 2 92 SAE washer 13 16 x 13 32 x 0 062 zinc pl KP1102 2 93 Plunger link pin KP3126A2 1 94 Spacer for plunger link KP3010A1 3 95 Plunger link pin KP113R 1 96 Setscrew No 10 32 x 1 4 pin lock KP394 1 97 Closing plunger KP104R 1 98 Insulating spacer KA62R 13 99 Cap screw 3 8 16UNC2 x 1 1 2 stl hex hd KP419 8 100 Lockwasher 3 8 med steel KP556 4 101 Upper solenoid frame KP100R2 1 102 Closing coil and fuse kit 60 cycle add correct number KA834R 1 3 7 2 to 8 32 kv 4 12 0 to 13 8 kv 5 14 4 kv 7 125 v dc 8 250 v dc 9 11 0 kv Closing coil and fuse kit 50 cycle add correct number KA861R 1 3 7 2 to 8 32 kv 4 12 0 to 13 8 kv 5 14 4 kv 9 11 0 kv Closing coil and fuse kit 40 cycle add correct number KA860R 1 4 12 0 to 13 8 kv 5 14 4 kv 103A Rod solenoid
7. Flash POI iiss ut cert tetas 145 C min 293 F Ner ES 160 C min 320 F Pour ntt enis 45 69C max 50 F Viscosity at 37 8 C 100 F Saybolt Universal 62 sec max at 329F Sayholt Universal 320 sec max Specific gravity at 20 09 68 0 0 895 cc max Co efficient of expansion sto 0 000725 at 1009 C 2120 0 000755 Interfacial 40 dynes cm min Dielectric 2 2 Dielectric strength 26 000 volts min Weight per 7 5 lbs Water content 40 parts million max Fischer test Servicing Locations Vary with Amount of Maintenance Routine inspection minor maintenance most adjust ments and replacement of oil can be performed on a recloser without removing it from the mounting frame Repairs or major maintenance work should be per formed in the shop PERIODIC FIELD INSPECTION AND MAINTENANCE Each periodic check should include at least the follow ing steps 1 BYPASS TRIP AND DE ENERGIZE THE RECLOSER Disconnect the control cable from the recloser 2 INSPECT EXTERNAL COMPONENTS Check for broken bushings paint s
8. 3 MO LONMELTION xiSTS WH EMHI EDUSED wet hi BETWEEN M RECLOSER SECEPTALLE AND M CONTROL RECEP THLE ME SWITCH CON TED TO DOPFRATPG HANDLE CLOSED WHEN HANDLE i5 ul AD em Paii E mE azuro m B 4 8 xm CoL ELO SNG ER 650 BAT TERY CHARGING M r5 DOWN WHEN BECLDS R 15 FIGURE 25 Internal wiring of electronic recloser Terminals on recloser terminal strip are let tered right to left A through G Terminals on terminal strip in this diagram are lettered left to right A through G for explanatory purposes Pin N of the control cable receptacle is conneded to terminal G of the terminal strip on the recloser frame to facilitate testing of mercury switches 2 and 3 9 Transfer ohmmeter probes to sockets F and A The ohmmeter should read infinite ohms If not mercury switch 2 may be faulty Individual checks on mercury switches 2 and 3 can be made by means of pin sockets N F and A 2 Recloser contacts open and manual control lever up a Repeat step f under condition 1 Microswitch 1 should still be open b Transfer ohmmeter leads to sockets F and A Ohmmeter should indicate closed circuit show ing that mercury switch 3 has remained closed Mercury switch 2 should be closed c Remove ohmmeter probes from terminals F and A Connect positive lead of the battery or 25 volt station d c source to socke
9. Should one trans former possess opposite polarity be sure to refer to the circuit of figure 25 as a guide during further trouble shooting 3 De energize a c test current and remove jumper wires from receptacle sockets Output Test for Battery charging Current Transformer 1 Energize 100 ampere a c test current 2 Measure current at sockets K and L of receptacle Value should fall between 40 and 60 milliamperes 3 Readings within this range indicate sufficient cur rent to maintain the control battery at the optimum voltage level Page 18 OPERATIONAL CHECKS CONT D REPLACEMENT INSTRUCTIONS FOR CIRCUIT COMPONENTS All circuit components associated with the recloser frame head casting and operating mechanism except the trip solenoid rotary solenoid microswitch 1 and mercury switch 2 can be replaced without detaching the recloser mechanism from the head casting Instructions for replacing bushing CT s mercury switch 3 and the 0 2 MFD capacitor are given first A 100 watt soldering iron will meet all requirements for repair work When resoldering lead connections use only resin core solder M E will assume no responsibility for components having leads connected by means of acid core solder 0 2 MFD Capacitor Label lead connections to the capacitor and proceed as follows 1 Heat solder joints to disconnect leads 2 Remove two screws that secure capacitor to recloser frame 3 Replace by reversing above
10. casting Lift the bushing assembly up through the head casting 3 An aluminum clamping ring cushions the pressure between the bushing and bushing clamps If it is in good condition the ring can be reused Twist the ring and slip it from the bushing 4 The bushing assembly can be completely replaced or new porcelain only may be installed If new porcelain is used unscrew the bushing terminal and pour out the oil from inside the bushing Loosen the sealing plug and then draw the bush ing lead rod out the lower end of the porcelain Insert the rod all the way into the new porcelain and tighten the sealing plug Slowly fill the bushing with transformer oil and then replace the bushing terminal using a new terminal gasket 5280 40 5 Page 11 WA TERMINAL EOD m EOD RELATION 5 2 E 2 RUSHING 5 4 1 a 1 gt DG IRMINA GAMIT ASSEJUIL T 71 i BUSHIMGE E 1 CLAMPS AULA 3 6 mes 1 45 im SLEEVE HOCK 5 5 GASKET BEALZKMR PLIG Figure 14 Bushing Replacement Type RVE Recloser 5 Replace the bushing assembly using a new gasket between the bushing and the head casting When securing the bushing clamps be sure to tighten the three bolts evenly a little at a time CAUTION When reconnecting bushings position flexible le
11. described nor to provide direction for meeting every possible contingency during installation operation or maintenance When additional information is desired to satisfy a problem not covered sufficiently for the user s purpose please contact your Cooper Power Systems sales engineer Replaces 281 75SB 1 dated 1 66 No change in text Page 2 DESCRIPTION OF RECLOSER The Types RVE and WVE reclosers are self controlled devices that protect distribution lines and equipment Each unit consists of a circuit interrupting device hereafter referred to as the recloser an electronic control and a connecting cable Fault current sensing is achieved by the control which actuates the recloser Circuit interruption is provided by the recloser A Type RVE or WVE recloser performs similarly to other reclosers in that it trips and automatically reclos es If a fault is temporary reclosing of the contacts restores normal service If the fault is permanent the recloser senses this by performing a preset number of operations and locking open All three phases of a Type RVE or WVE recloser open and lock out simulta neously Opening sequences of the recloser can be all fast all delayed or any combination of fast followed by delayed operations up to a total of four Fast opera tions clear temporary faults before branch line fuses can be damaged Delayed openings allow time for fuses to clear so permanent faults can be confined to smaller sections
12. frame KP1669R 4 103B Solenoid frame shoe Alternate for 103A KP102R 2 104 Fiber stop also included with item 102 KP106R 1 105 Closing plunger stop KP1667R 1 106 Bridge plate KP1668R 1 107 Plate KP1587R1 1 108 Spring valve lift KP563R 2 109 Spacer KP3009A6 2 110 Washer 1 2 AN light stl KP1103 1 111 Washer 14L brass KP818 2 112 Lockwasher 1 4 med KP337 2 113 screw 1 4 20UNC2 x 2 1 4 stl hex hd KP751 2 114 Head to frame spacer KP227R1 6 115 Lockwasher 1 2 med sil zn pl KP1107 6 Quantity Item Catalog Per No Description Number Recloser 116 Socket cap screw 1 2 13UNC2 x 4 1 2 stl hex black oxide finish or equivalent KP2036A3 6 117 Quick release control lever coupler KP1177R 1 118 Quick release counter shaft coupler KP1056R 1 119 Retaining ring WA514 stl KP75 7 120 Lockwasher 1 4 X 0 109 x 0 062 stl KP337 3 121 screw 1 4 20UNC2 x 3 4 stl hex hd KP735 3 122 Closing solenoid contactor kit KA852R 1 123 Contact toggle spring KP141R 2 124 Contactor link pin KP1306R 1 125 Mechanism frame assembly KA68RE 1 see parts list page 28 126 Shield KP531RV 1 127 Conduit strap 3 4 Graybar 1277 128 Screw 10 24UNC2A 5 8 lg rd hd stl KP1041 4 129 Stop nut elastic KP2020A13 4 130 Washer 10 SAE stl KP1115 4 131 Washer KP753R 4 132 Wire Assembly KA28W2 1 133 Screw self tapping 10 x 3 8 Sstl KP52 1 134 Machine screw 1 4 20UNC2 x 1 2 br
13. of line Arcs are extinguished in the rugged arc interrupter assemblies figure 1 which utilize the proven selfblast principle of arc interruption Moving contacts are driv en by powerful opening springs that are charged when the recloser is closed Closing is accomplished when a line voltage solenoid is connected across two phases of the distribution line This connection occurs when a rotary solenoid located inside the recloser allows the closing solenoid contactor to close A trip free control lever linked with the interruption mechanism is provided to lock the recloser open manually This lever located under the sleet hood cannot be used to close the recloser but it must be in the CLOSED position before the electronic control can cause the recloser to close A contact position indicator linked to the interrupting mechanism but independent of the control lever is provided under the sleet hood GENERAL MAINTENANCE INFORMATION Maintenance Ensures Reliable Performance Reclosers are widely applied to increase service con tinuity reduce system operating costs and increase revenue The Type RVE or WVE performs all these recloser functions by combining the flexibility and relia bility of electronic control with proven interrupting mech anisms to achieve superior distribution circuit protection However the recloser can perform at peak efficiency only if it is maintained in good condition While mainte nance is relativ
14. pin BOTARE SGLENOID 4 SPACERS LEADS RET 5 45 Figure 29 Top view of rotary solenoid and associated components Page 20 OPERATIONAL CHECKS CONT D FUSH ROD BRACKET 2 Remove hexnuts and lock washers that secure the rotary solenoid to the recloser frame Disconnect solenoid leads from the terminal block and remove rotary solenoid 3 Remove hexnut spacers and washers from rotary solenoid mounting studs and attach to new solenoid Install new rotary solenoid by reversing the foregoing procedure Be sure solenoid leads are connected to correct terminals Refer to fig ures 17 and 25 Trip Solenoid The trip solenoid figure 30 is replaced as follows 1 Disconnect leads from terminals A and B of the terminal block TEIP 2 Loosen the hexnut that secures the nylon mount SET SCREWS AMD SOLENOID ing strap to allow lead sleeving to slip through LOCKWASHERS freely Figure 30 3 Remove two socket head set screws that secure Properly installed trip solenoid the trip solenoid to the mounting bracket Detach trip solenoid from bracket Two lock washers will be released 4 Install new solenoid by reversing above procedure Pass leads through nylon mounting strap and grommet in mechanism frame Connect leads to terminals A and B of the terminal strip in any order The trip solenoid is not polarity sensitive PARTS ORDERING When orde
15. procedure Be sure to reconnect leads to proper capacitor terminals Battery Charging Current Transformer Label lead connections to the current transformer and shunting resistor Then proceed as follows 1 With diagonal cutters clip the leads close to the current transformer 2 Disconnect the flexible bushing lead 3 Remove the two screws that secure the current transformer to the head casting Bushing CT is now free to be removed 4 Replace current transformer by reversing the above procedure Be sure to use spacers between the transformer mounting supports Replacement transformers are equipped with six inch leads which can be trimmed as required When splicing connections be sure the proper leads are connected before soldering Be sure to wrap all splices with electrical tape and observe soldering precautions recommended above Sensing Bushing Current Transformers Replacement of phase A phase B and phase C cur rent transformers is identical These transformers are installed as described above under battery charging transformer instructions Mercury Switch 3 Refer to figure 17 Disconnect leads from terminals A and G and proceed as follows 1 Loosen two screws that secure nylon mounting straps to lever pinned to main reclosing shaft 2 Slip mercury switch from mounting straps when screws are loosened sufficiently 3 Be sure to replace mercury switch so that lead wires are furthest from the rotary sole
16. rd hd Lock washer 1 4 20UNC2 Terminal box gasket Oil level dipstick O ring gasket Lifting eyebolt Palnut 5 8 11UNC2 galv Closing tool port cover Port cover plate gasket Plate closing call Self tapping screw 2 x 3 16 sstl Head casting includes control shaft bushings items 46 and 54 Head gasket Ground connector Plate serial number Plate ground instruction Indicator and support assembly Spacer Groove pin Retaining ring WA514 Lockout handle assembly Link rod and pin assembly Handle lever assembly Spacer Handle shaft bearing included with item 33 Retaining Ring WA516 Retaining Ring WA510 Spacer Groove pin Groove pin Shaft and lever assembly Spacer Shaft bearing included with item 33 Washer 9 16 x 0 260 x 0 040 brass Cottter pin 3 31 X 1 2 brass Roll pin 1 32 X 1 2 Roll pin 1 8 X 3 4 Link Sleet hood cover plate Self tapping screw No 12 x 1 2 sstl Serial number nameplate RVE Serial number nameplate WVE Catalog Number KP609R KP610R KP613 KP563 KP611R KA363R KP2000A9 KP1104R KP2064A7 KP246R KP247R KP1225R KP69 KA1603R1 KP120R KA392R KP110GS KP611D KA19RE KP3013A11 KP3126A4 KP75 KA621R KA314R KA320R KP3010A6 KP259R KP76 KP72 KP3006A9 KP3123A12 KP3123A3 KA319R KP3007A8 KP1055R KP399 KP302 KP504 KP502 KP137RE KP283R KP50 KP1RVE KP101WVE Quantity Per Recloser 1
17. 4 KP87 KP163RE Quantity Per Recloser cg E23 BR NW dx NS 2 Quantity Item Catalog Per No Description Number Recloser 112 Shaft spring anchor KP292R 1 113 Spring reclosing KP191R 1 114 Retaining Ring WA516 KP77 36 115 Lever reset trip order only with items 116 and 117 KP194R 1 116 Roll pin 3 32 X 3 4 Ig order only with items 115 and 117 KP523 2 117 Shaft order only with items 115 and 116 KP153RE 1 118 Machine screw 10 24NC2 x 1 Ig rd hd stl cad KP670 1 119 Hex nut 10 24NC2 stl cad KP272 1 120 Lockwasher 10 med st cad KP353 1 121 Spring reset lever KP172R 1 122 Lever reset trip KP171R 1 123 Retaining ring WA518 Type C KP79 5 124 Spacer KP3009A17 2 125 Contact and trip arm assembly KA360R 1 126 Contact and counter arm assembly KA359R 1 127 Spacer KP3009A16 1 128 Spacer KP3007A8 3 129 Counter link KP183R 1 130 Retaining ring WA514 Type C KP75 10 131 Contact lever and shaft assembly KA318R 1 132 Bearing shaft KP1055R 1 133 Spring KP1180R 1 134 Washer 14S plain brass cad KP811 4 135 Roll pin 3 32 x 1 2 KP504 1 136 Groove pin KP3125A5 1 137 Washer flat 5 16 SAE brz irr KP1120 13 138 Contact bar assembly KA13R 1 139 Contact bar pin KP290R 1 140 Pin KP3125A9 1 141 Washer flat 5 16 AN stl zn pl KP833 8 142 Contact opening spring KP173R 2 143 Spacer KP3011A34 2 14
18. 4 Washer flat 3 8 SAE Stl cad 547 1 145 Spring anchor shaft KP284R 1 146 Frame operating mechanism KP189RE 1 COOPER Cooper Power Systems Quality from Cooper Industries 1988 Cooper Industries P O Box 2850 Pittsburgh PA 15230 KTM 4 88
19. 5W 6 195 Bottom plate KP214W 3 196 Lockwasher 3 8 med KP1108 24 197 nut stl 3 8 16UNC2B KP276 24 198 Spacer KP3011A4 6 199 Contact yoke assembly KA6WV 3 200 Washer 5 16 SAE stl KP350 3 201 Stop nut elastic KP2020A2 3 202 Insulating spacer KA62R 13 203 Contact nut KP207W 6 204 Washer retaining KP515RV2 6 205 Fibertube includes retaining ring KP512RV 6 206 Contact cup KP206W 6 207 Contact spring KP117W 12 208 Spring spacer KP210W 12 209 Garter spring KP209W 6 210 Contact arm assembly KA124W 36 211 Contact retainer KP211W 6 212 screw fil hd 3 8 24UNF 2 x 1 1 4 KP1069 6 213 Gasket KP136W 6 214 Plate KP1293M 24 215 Plate KP213W 12 216 Plate KP1294M 48 217 Plate KP523R4 36 218 Roll pin 1 8 x 13 16 KP506 3 Page 28 PARTS LIST HEAD MECHANISM TYPES RVE AND WVE RECLOSERS S ag 48 Ka 16 AS NE m Item No PARTS LIST HEAD MECHANISM TYPES RVE AND WVE RECLOSERS Description Machine screw 6 32NC2 x1 Ig rd hd brass Lockwasher 6 internal tooth bronze Switch hermetically sealed type 1HS3 with roller lever actuator Minneapolis Honeywell Machine screw 10 24NC2 x 3 4 lg rd hd stl cad Bracket Lockwasher 10 med stl cad Hex nut 10 24NC2 stl cad Hex nut 6 32NC2 brass cad Machine screw 6 32NC2 x 1 2 lg rd hd brass cad Cable clip Lead wire assembly Mercury switch Machine screw 8 32NC2 x 1 4 lg rd h
20. OLENOID PORT AMD COVER FOR WAMLAL CLOSING TOOL 3 pH N RECLUSING LEVER O RING GASKET CLOSING SOLENOID COMTACTOR INTERRUPTER ASSEMBLIES Figure 1 Principal Components Types RVE and WVE Reclosers Type RVE Shown here Page 4 GENERAL MAINTENCE INFORMATION CONT D High Dielectric Strength Maintains Oil Effectivness Although the Type WE can undergo a complete duty cycle without requiring an oil change more frequent oil changes will be required if the majority of fault currents are near the maximum interrupting rating Oil that has become contaminated with carbon and sludge or has a dielectric strength of 18 kv or lower should be replaced Use only oil that meets the requirements tabulated below for L M switchgear Refer to ASTM Methods of Testing Electrical Insulating oil Publication D117 This publica tion is available from the American Society for Testing Materials 1916 Race Street Philadelphia Pennsylvania CHARACTERISTICS OF OIL FOR M E SWITCHGEAR Color nearly colorless ASTM colorimeter 1 0 max Union colorimeter esses 2 0 max aie diea neutral Neutralization number 0 03 mg KOH g max Free eta rnit Corrosive sulphur sese 3 max Steam emulsion number 25 seconds max
21. XHUTS BHDOBOHOWITCM I 21 5 PRICE BUCHT EM DE CAM BOLL LEWER Figure 28 Properly installed microswitch 1 pAERCUET 3 SHAFT c 8 2 111 871111117 280 40 5 Page 19 5 Pass sleeving through mounting straps and tighten to secure sleeving Connect switch leads to proper terminals Position switch as shown in figure 27 and secure mounting straps to lever If switch is posi tioned opposite to that illustrated in figure 27 the recloser will operate improperly Microswitch 1 Refer to figure 28 and proceed as follows 1 Disconnect the two white leads from the top of the microswitch 2 Remove two round head machine screws to release microswitch from mounting bracket A hexnut an washer will be released from the threaded end of the screw 3 Attach new microswitch to mounting bracket Adjust microswitch so that roller lever stop just touches base of switch when roller rides on cam When roller is off cam it should just clear flat of cam as shown in figure 28 Tighten machine screws 4 Reconnect leads to two terminals nearest rotary solenoid as shown Rotary Solenoid Refer to figures 17 28 and 29 and proceed as follows to replace the rotary solenoid 1 Drive out the roll pin that secures the spring lever to the rotary solenoid shaft Detach retarding spring from cotter
22. act closing is performed by the closing coil mounted below the mechanism The basic lever arrangement in the mechanism is shown here With the contacts closed figure 19 the opening springs are fully extended The trip coil push rod rests up against the toggle latch and when the trip coil is energized the toggle opens figure 20 The contact and toggle support assembly and the contact and trip arm assembly rotate on their shafts and begin to push the contacts open As the opening springs rotate the contact and trip arm assembly past this point fig ure 21 the trip arm moves the reset trip lever which releases the reset lever The reset lever is rotated by a spring and snaps the toggle closed This motion of the reset lever also pulls the plunger out of the closing coil At this point the contacts are completely open TO OPENIMG SPANCA CONTACT LFT ADD SPRINGS ARE FULLT CONMDCTER HERE Figure 19 Contacts closed MNCS sss HALF E2 TENDED 1 TOCGLE ASSET CONTACT AMD TOGGLE SUPROAT Figure 20 Contacts open halfway Figure 21 Contacts fully open Page 14 ADJUSTMENTS CONT D Figure 22 Contacts reclosed The closing coil is energized by a signal to the rotary solenoid on the side of the mechanism The solenoid closes the closing solenoid contactor which energizes the coil The plunger is drawn into the coil an
23. ads at least 1 2 inch from any vertical insulating support grounded part or contact plunger rod On reclosers equipped with a ground trip solenoid also be sure one center phase lead clears the solenoid frame by 1 2 inch BUSHING TYPE WVE RECLOSERS Maintenance of bushings is generally limited to an occa sional cleaning If a bushing should become cracked or broken replace the entire bushing assembly Type WVE only as follows 1 Remove the hex nut lock washer and flat washers on the bushing to release flexible straps 2 Remove the three hex head cap screws that secure the bushing assembly to the head casting and lift out the bushing assembly 3 Replace the bushing assembly using a new gasket between the bushing and the head casting CAUTION When reconnecting bushings take care to position flexible leads at least 1 2 inch from any vertical insulating support stringer grounded part or the contact plunger rod in each phase on reclosers equipped with a ground trip solenoid also be sure one center phase lead clears the solenoid frame by 1 2 inch Page 12 SHOP MAINTENANCE CONT D CONTACT POSITION INDICATOR eA LEVER SPRING LOADED SLEEVES Figure 15 Spring loaded sleeves of lockout lever and contact position indicator in engaged positions REMOVAL OF HEAD CASTING Access to components located in or on the main frame such as the operating mechanism mercury switches trip solenoid rotar
24. aras IR ea ra pan Lg p x E it iia 3 a MUT ay aed I coer 5 Sy mann umar 7 T mr ac pe 2771 b 2d Te n j z p n m mum Lc Ne 8 m Figure 9 Components of arc interrupter assembly Type WVE Recloser 6 Insert a large screwdriver through the stationary contacts to engage the fillister screw slot With a box wrench loosen and remove the contact nut while the screwdriver is held securely in a vise Remove contact arms contact cup and retaining washer leaving the retaining ring which rests in a slot on the inside of the tube Figure 10 shows a dismantled stationary contact assembly 7 To reassemble the stationary contacts slip the con tact retainer onto the fillister head cap screw and arrange the six contact segments around the screw and retainer Each of the six teeth on the retainer should fit into a hole on a contact segment Place the garter spring contact springs and spring spac ers over the small end of the assembly in the fol lowing order garter spring spring spacer contact spring spring spacer and contact spring Insert this assembly into the contact cup by twisting in clockwise Then push the cup and contacts into the large
25. ass rd hd KP473 4 135 Washer 14L plain brass KP818 4 136 Lockwasher 1 4 med phos buzz KP347 4 137 Machine screw nut 1 4 20UNC2 brass hex KP274 4 138 Closing coil fuse assembly KA259R 1 Add number to indicate voltage rating 3 12 0 to 14 4 kv color band one red 4 2 4 kv color band two red 139 Fuse wire jumper assembly KA28W1 1 140 Fuse bracket included with item 138 KP714R 1 141 Fuse terminal bracket KP257L 1 142 Non reclosing shaft link KA25R 1 Page 26 PARTS LIST FOR INTERRUPTING MECHANISM TYPE RVE RECLOSER ONLY SEE PAGE 27 FOR WVE PARTS LIST it Quantity fax Catalog Per H No Description Number Recloser 87 143 Lift rod link KP167R 6 gt 144 Groove KP3125A2 6 145 Retaining ring WA516 KP76 12 iti 146 Guide contact rod KP518RV1 3 p 147 Lock washer 1 4 med KPI040 6 E T 148 Screw rd hd stl 1 4 20UNC2A x 1 2 KP837 6 j 149 Contact rod assembly phases A and B KA6RV1 2 Contact rod assembly phase KA6RV2 1 150 Cap screw stl 3 8 16UNC2A x 6 1 2 KP1Q72 24 151 Washer 13 32 x 13 16 x 0 062 KP807 48 152 Contact frame assembly phases A and B KA3RV1 2 Contact frame assembly phase C KA3RV2 1 153 Spacer KP3013A40 24 154 Spacer KP3008A9 24 155 Contact housing assembly KA11RV 6 156 Bottom plate KP524RV 9 157 Lockwasher 3 8 med KP1108 24 158 Hex nut stl 3 8 16UNC2B KP276 24 159 Washe
26. bon traces with a clean lint free cloth 9 INSPECT TANK LINERS 10 Any soft or spongy areas in the liners indicate mois ture has been absorbed These areas are most likely to occur near the bottom of the tank When replacing liners be sure the new liner installed in each section is the same size as the original If interrupting duty is severe the tank liners may be eroded near the exhaust ports of the arc interrupting structures Replace any liners that show appreciable erosion Replacement liners come in a kit as part number KA867R See Parts List Page 23 item 86 CHECK CIRCUIT COMPONENTS ATTACHED TO THE RECLOSER COVER FRAME AND OPERATING MECHANISM These components are identified in figures 17 24 and 27 Be sure all wiring to the terminal strip is secure at each terminal The rotary solenoid and trip solenoid should be firmly attached to the recloser frame Check mercury switches attached to the counter shaft and main shaft They should be securely held in place by the nylon mounting straps Check the microswitch mounted above the main shaft It should be firmly held in place by the mounting bracket Check bushing current transformers See that wiring is in order FILL TANK WITH OIL Use only new transformer oil with dielectric strength of at least 26 kv as measured across a standard 0 1 inch gap in accordance with methods presented in ASTM Publication D117 The oil level should be 2 1 4 inches from the top o
27. cratches or other mechanical damage 3 LOWER THE TANK TO EXPOSE INTERNAL COM PONENTS Attach sheaves of the tank hoisting mechanism to recloser tank and take up slack Then remove the ten bolts to release the tank from the head casting CAUTION Be sure the recloser is tripped before lowering the tank so the recloser will not be tripped accidentally while the mechanism is out of oil 4 INSPECT MOVING CONTACTS Arcing tips of the moving contacts can experience considerable erosion before replacement is neces sary The contacts should be replaced before their effectiveness is impaired by erosion of the load cur rent contact surfaces LOAD CURKENT COMTACT SURFACES j ARBCIMO TIFS Figure 2 Left moving contact assembly after one full duty cycle right contact assembly new Figure 2 shows a set of moving contacts after they have experienced severe interrupting duty and a new set for comparison The used contacts shown have reached the condition where they should be replaced If moving contacts appear to have further useful life inspection of the arc interrupter chamber and sta tionary contacts can be omitted These components are designed to last at least the life of the moving contacts 5 INSPECT STATIONARY CONTACTS If moving contacts of any phase or phases are in questionable condition the corresponding stationary contacts should be inspected Refer to page 7 or 9 for instructions on removal and reass
28. current sup ply to points 1 and 2 CAUTION Never use the KA90R manual closing tool on an energized recloser Ratio Test for Sensing Current Transformers 1 Energize 100 ampere test source 2 Check current through control cable receptacle sockets K G K H and K J as identified in figure 25 For each sensing bushing CT checked the mil liammeter should indicate 100 milliamperes 10 percent BE SURE TO ALLOW FOR TOLER ANCES OF METERING EQUIPMENT The resis tance of certain types of meters is not negligible It may be necessary to use the 0 500 milliampere scale with its lower resistance rather than the O 100 milliampere scale 3 A 100 ma reading verifies the 1000 1 ratio of the current transformer If 100 ma is not achieved bushing CT can be suspected as faulty but polarity test should be performed De energize test source Polarity Test for Sensing Current Transformers 1 Connect sockets G H and J of the control cable receptacle in series with jumper leads as indicated in figure 26 The jumper leads connect the secon daries of the current transformers in parallel so that total output current measured at points K and J should be 300 ma 2 Energize a c test current Check for 300 ma reading at sockets K and J Results can indicate either a all three bushing current transformers have the same polarity 300 ma reading or b one bush ing current transformer has polarity opposite remaining two 100 ma reading
29. d stl cad Machine screw 8 32NC2 x 5 8 lg rd hd stl cad Washer 10L plain brass Nyloclip HP 8N Burndy Machine screw 6 32NC2 x 5 8 lg fil hd stl cad 7 terminal board Grommet rubber Washer 105 plain brass cad Machine screw 10 24NC2 x 16 lg rd hd stl cad Spacer Link Groove pin Retaining ring WA514 Arm Spacer Lever Lever order with item 30 Pin order with item 29 Roll pin 3 32 X 1 2 Transfer shaft Roll pin and lever included in item 41 Lever Retaining ring WA510 Groove pin Link Hex nut 1 4 28NF2 stl cad Lockwasher 1 4 med Washer 145 plain brass cod Rotary solenoid assembly Catalog Number KP681 KP826 KP497 KP186RE KP353 KP272 KP852 KP641 KP2006A8 KA62RE KP134RE KP500 KP669 KP560 KP2006A4 KP1043 KP882 KP2017A4 KP840 KP670 KP133RE KP128RE KP3124A3 KP75 KP1295R KP3009A9 KP130RE KP118RE KP119RE KP504 KP152RE KP117RE KP72 KP3123A4 KP126RE KP290 KP337 KP811 KA12RE Quantity Per Recloser BB gt 00 4 3 5 GO ek VES gt Item No 42 43 44 46 47 49A 49B 51 52 53 54 69B 70A 70B 71 72 73 74 75 76 77 5280 40 53 Page 29 Description Spring counterbalance Cotter pin 3 32 X 1 Ig brass Spacer Roll pin 1 8 X 3 4 Washer flat 5 16 SAE stl cad Spring Retaini
30. d the reset lever is pulled back figure 22 to its original posi tion at the same time closing the contacts The mech anism is then ready for another cycle RATING CHANGES The recloser s continuous current rating and minimum trip values can be changed in the field as described in the control installation manual Closing solenoid coils are available for eight voltage ranges from 2 4 to 14 4 kv Note that the voltage rating represents phase to grounded neutral voltage Two d c coils rated at 125 and 250 volts dc also are available When the closing solenoid coil is changed as described ort page 9 the protective fuse may also require replacement one fuse is shipped with each replacement coil Fuse and coil data are given on pages 10 and 11 ADJUSTMENTS Refer to the control installation manual bulletin 281 27SA 1 for information about operations to lockout reclosing time phase trip sequence minimum trip val ues resetting time ground trip sequence phase trip timing and ground trip timing CONTROL LEVER OVERTRAVEL ADJUSTMENT Check for proper adjustment of the control lever by first removing the sleet hood cover to expose the control lever From the OPEN position slowly push the control lever toward the CLOSED position As the lever is pushed up latching of the recloser will be felt At this point dimension a of figure 23 should be 1 4 inch If the control lever is not adjusted properly open the C ring and remove i
31. e 7 ohms If not corresponding sensing current transformer may be faulty Check bushing CT s for ratio and polarity as described in the test procedure on page 17 With ohmmeter common probe still inserted in socket K insert positive probe into socket L Ohmmeter should read 1000 ohms If a reading of zero ohms is obtained the 0 2 MFD capacitor may be short cir cuited Readings deviating from 1000 ohms outside a 20 percent tolerance indicate damaged resistor or transformer winding f Transfer ohmmeter probes to sockets C and D Infinite ohms should be read indicating microswitch 1 is open circuited If not the mercury switch is faulty but should be rechecked before replacing NOTE Mercury switch and microswitch positions for combinations of control lever and recloser contact positions are tabulated on page 17 4 BUSHING CURRENT a TRANSFORMERS 100 0HM SHUNT RESISTORS View of fault sensing bushing current transform ers located on source side of recloser Battery charging current transformer is located on center phase loads ide bushing Page 16 OPERATIONAL CHECKS CONT D RECEPTACLE E F LCHJELHMNHP jj hi CONNECTIONS 14 FIGURATION DF PIN nn f 5 OF CONTROL T RMINAL STR E a RECEPTACLE SEEM ON PECL 4 FRAME MICE M EC RUTARY TEST LEAD FOR SW TCHES 2 Laie nT
32. ely easy and inexpensive it is important Oil plays an essential role in arc interruption insulation and reclosing Arc interruption however contributes to oil decomposition For this reason the oil steadily dimin ishes in dielectric strength as the recloser continues to clear fault currents Breathing action may also result in moisture absorption by the oil thus lowering its insula tion value For effective recloser operation oil must be replaced before it deteriorates beyond a safe level Climate and Duty Determine Maintenance Intervals Frequency of maintenance depends upon local climatic conditions and the interrupting duty imposed on the recloser M E recommends the unit be inspected com pletely cleaned and filled with new oil at least once each year If the recloser operates through a duty cycle in less than one year periodic maintenance should be performed then The duty cycles are as follows Type RVE Recloser Fault Current Percent of Maximum Interrupting Recloser Circuit Rating Operations X R Value 15 20 28 4 45 55 24 8 90 100 10 15 Total 62 Type WVE Recloser Fault Current Percent of Maximum Interrupting Recloser Circuit Rating Operations X R Value 15 20 28 4 45 55 20 8 90 100 10 15 Total 58 5280 40 53 Page COVER CLAMPED LH NDS HAMEPLATES SLEET Honn E sd MANLIAL LOC ROUT LEVER TERMINAL STRIF MOWING CONTACT ASSEMBLIES CLOSING S
33. embly of the fiber plates that form the arc interruption chambers Removal of these plates is necessary for inspection of the stationary contacts Figure 3 shows a stationary contact assembly after one duty cycle and a new assembly for comparison Note that erosion of the load current contact sur faces has started The six contact segments or the entire assembly should be replaced ARCIAG TIPS LOAD eo 7 CONTACT SURFACES Figure 3 Left Stationary contact assembly after one full duty cycle right new contact assembly 6 INSPECT ARC INTERRUPTER CHAMBERS The insignificant cost of the fiber plates making up the arc interrupter chambers permits complete replacement whenever the stationary contacts are replaced A visual comparison of bottom and top plates will indicate necessity for replacement The top plates closest to the stationary contacts and nearest to the most arcing will show enough ero sion to provide a decision for replacement S280 40 5 Page 5 7 CLEAN ALL INTERNAL COMPONENTS Remove all carbon traces by wiping with a clean lint free cloth Pay particular attention to all insulating members Flush the mechanism with clean dry transformer oil CAUTION Never use volatile solutions detergents or water soluble cleaners 8 DRAIN OLD OIL Remove the 1 2 inch pipe plug at the bottom of the tank or open the tank valve if one has been installed Rinse the tank with clean oil and wipe out all car
34. emoved Six tubular spacers and lock washers will be released when the bolts are removed and the head is lifted from the reclos er mechanism frame Figure 18 shows head cast ing and associated components removed from the mechanism frame 7 To reassemble carefully lower head casting in place with the six tubular spacers placed on the lugs Start the six ton bolts and tighten evenly to avoid any binding of the mechanism 8 Engage the contact indicator and lockout lever Reconnect the operating lever of the auxiliary switch if used 9 Attach 0 2 MFD capacitor to the recloser frame Reconnect bushing leads Be sure bushing leads are positioned as described in the cautionary notes on Page 11 10 Connect wiring from bushing CT s and cable recep tacle to respective terminals on the terminal block Attach nylon lead strap to recloser frame 280 40 5 Page 13 FAULT SENSING MUSHIN CUBREMT 5 8 5 5PACERS THESE WIRES COMMECTED BATTERY CHARGING BLUSHING TERMIMAL STRIP CURWENT TRANSFORMER Figure 18 RECEPTACLE ON HEAD Casting D 2 FD WEXSCKCKET HEAD CAPACITOR EATS Head casting detached from operating mechanism Hexsocket head bolts have been attached to head casting for illustrative purposes MECHANISM OPERATION The head mechanism performs the actual opening and closing operations in response to signals from the electronic control Contact opening is initiated by a trip coil Cont
35. end of the tube Insert the retaining washer and contact nut from the opposite end Use the large screwdriver to hold the fillister head cap screw while the contact nut is tightened Replace the fiber plates in the arc interruption assembly if necessary Refer to periodic mainte nance page 5 for the method of determining when these plates should be replaced EZ CONTACT EETAIMIMMRP RIND d DO MOT REMOVE FROM CONTACT TUSE mra CONTACT Tiki CONTACT CONTACT a SPRING i 5PACHE GARTER CONTACT a T x lt E le COC A CONTACT SCREW RETASMER Figure 10 Stationary contact assembly components Type WVE Recloser S280 40 5 Page 9 9 Examine the insulating support stringers for evidence of tracking or moisture absorption Failure of these members is rare but if any show tracking replace as follows a Remove the hex nuts lock washers and flat washers that secure the phenolic contact sup port plate to the stringers b Loosen the stringers with pliers and remove c Install new members as required and reassem ble 10 Refer to figure 9 and reassemble the interrupter in the following order a Place the fiber plates in two stacks on top of the bottom plate in the order shown in figure 9 Make sure that the gasket is included The exhaust po
36. errupting assembly Drive out the roll pin located near the end of the contact lift rod Be sure to back the rod with a heavy solid object when driving out the roll pin Slide the contact yoke from the lift rod Save all the spacer washers Remove the terminal bolt from the top of each sta tionary contact assembly Remove hex nuts flat washers and lock washers from bottom of interrupter assembly Slide the arc interrupter assembly downward Figure 7 shows the individual parts in the order of removal Examine the stationary contact segments to deter mine if arc erosion has spread to the load contact surfaces If so the contact segments only or the entire stationary contact assembly should be replaced Insert a large screwdriver through the stationary contacts to engage the fillister screw slot With a box wrench loosen and remove the contact nut while the screwdriver is held securely in a vise Remove contact arms contact cup and retaining washer leaving the retaining ring which rests in a slot on the inside of the tube Figure 8 shows a dis mantled stationary contact assembly 280 40 5 Page 7 a did n Ar zn 4 4 p a 82828 TA a n F ee s hm 2 ud n F
37. f the tank with the mecha nism removed The level can be double checked with the oil level gauge after the mechanisms and head casting have been fastened in place The capacity of the tank is approximately 38 gallons Page 6 GENERAL MAINTENANCE INFORMATION CONT D 12 13 14 REPLACE TANK Clean the ring head gasket and the tank gasket seat Move the control lever to the closed position to avoid any possible binding while raising the tank Raise the tank and secure it to the head casting with the ten head bolts CHECK LOCKOUT LEVER AND CONTACT POSITION INDICATOR Correct operation of these components can be observed by manually operating the recloser MANUAL OPERATION Remove the closing tool port cover and gasket and insert a KAQOR closing tool Manual operation can now be achieved by closing with the KA90R tool and tripping the recloser with the lockout lever See figure 4 CAUTION Never use the tool on an ener gized recloser If a recloser is to be tripped out of oil use the clos ing tool to open the contacts While one person turns the tool clockwise against the stop another can move the trip lever shown in figure 5 to the right Now let the tool slowly rotate counterclock wise to open the contacts Replace port cover and gasket when manual operation is completed Figure 4 Rotating the KA90R tool clockwise to manually close the recloser SHAFT AND EMGAGE CLOSING
38. gt gt 3 5 ii pau Item No Description 63 Voltage rating nameplate a c coils add correct number 3 7 2 to 8 32 kv 4 12 0 to 13 8 kv 5 14 4 kv 7 11 0 kv Item 63 is also included with Item 102 Voltage rating nameplate d c 6015 add de coil rating to serial number Item 63 is also included with Item 102 64 Self tapping screw No 4 x 3 16 sstl 65 Receptacle wiring duct assembly 66 Cable clamp 67 Cable clamp 68 Machine screw 8 32UNC x 5 16 Ig rd hd stl cad pl 69 Lockwasher 10 med sstl 70 Current transformers 71 Support current transformers 72 Spacer 73 Washer 14S plain brass 74 Lockwasher 18 8 1 4 x 0 109 x 0 062 sstl 75 Cap screw 14 20NC2 x 2 1 4 Ig hex hd stl cad pl 76 Machine screw 10 24NC2 x 2 1 2 19 rd hd stl cad pl 77 Lackwasher 10 med 78 Mach screw nut 10 24NC2 hex cad 79 Lead wire 80 Capacitor 23355 0 2 MFD Potter Co 2500 VDCW 81 Resistor 1K 25W 82 Resistor 100 ohm 25W 83 Terminal bracket 84 Cap screw 1 2 13NC2 x 3 1 4 electro zn and iridite pl hex hd stl 85 Washer wrought galv 86 Tank liner kit 87 Tank assembly 88A Pipe plug 1 2 solid sq hd brass 88B Gate valve 100 Ib 1 2 brass optional 88C Close nipple included with item 88B 89 Retaining ring WA518 sil
39. losing plunger Loosen defective supports with pliers and remove Install new members as required and reassem ble 4 Install the closing solenoid Be sure to use a new gasket between the coil and solenoid base plate Also see that solenoid leads clear insulating sup ports and the solenoid frame by at least 1 2 inch CLOSING SOLENOID CONTACTOR If the double break contacts of the closing solenoid contactor require replacement install an entire new closing solenoid contactor as follows 1 Disconnect closing solenoid and fuse leads from contactor C RINGS TOGGLE MECHANISM OPERATING LIE CLOSING SOLEHOID CONTACTOR Figure 12 Releasing contact operating rod of closing solenoid contactor from toggle mechanism 2 Remove three C rings to release pin that connects the operating link to the toggle mechanism figure 12 Two C rings are between the operating link and toggle mechanism The third is located on the outer end of the pin 3 With a long nose pliers release the springs between the operating link and toggle from the pin Then push pin through toggle mechanism and operating link 4 Remove the three hexhead cap screws that secure the contactor to the underside of the recloser frame Contactor is now free to be removed 5 Replace the contactor by reversing the above proce dure Use new C rings on toggle mechanism pin Be sure closing solenoid and fuse leads clear insulating supports and grounded
40. ng ring WA516 Handle shaft assembly used with items 69A and 7OA Handle shaft assembly used with items 69B and 7OB 50 Self tapping screw 6 32NC2 x 1 2 19 Type F Washer 6 plain brass Mercury switch subassembly Machine screw 8 32NC2 x 5 8 10 rd hd brass cad Lockwasher 8 med phos bronze cad Hex nut 8 32NC2 steel cad Pin reset lever Spring Spacer Spacer Pin spring anchor Trip lever assembly Spring bell crank Shaft spring anchor Link Spring Spacer Washer 145 plain brass cad Auxiliary switch bar assembly Trip latch lever used with items 49A and 70A Trip latch lever alternate used with items 49B and 70B Shaft used with items 49A and 69A Shaft alternate used with items 49B and 69B Spacer Solenoid trip assembly The solenoid may be ordered sepa rately as part no KP182RE Flat washer 1 4 SAE stl cad Cap screw 1 4 20NC2 x 1 2 19 hex hd stl cad Hex nut 1 4 20NC2 stl cad Cam roller assembly Machine screw 10 24NC2 x 7 16 19 rd hd stl cad Catalog Number KP98L KP433 KP3007A30 KP502 KP350 KP1176R KP77 KA15RE KA15RE KP30 KA63RE KP669 KP813 KP573 KP280R KP16GS KP330R KP3006A6 KP282R KA17RE KP12GS KP1488R KP1147R KP731R KP3007A1 KP811 KA253R KA647R KA13RE KP1678R KP125RE KP3007A8 55 827 KP701 KP279 KA67R KP489 Quantity Per Recloser O 19
41. noid If the end with out lead wires is not nearest the rotary solenoid improper operation of the recloser mechanism will result Remove Head Casting for Remaining Components To replace the following components trip solenoid microswitch 1 mercury switch 2 and rotary solenoid the recloser mechanism must be removed from the head casting as described on page 12 Mercury Switch 2 Refer to figure 27 and install new switch as follows 1 Disconnect the leads of the mercury switch from the terminal strip terminals F and G 2 Remove the four nylon mounting straps that secure the sleeving to the recloser frame 3 Remove the faulty switch from its mounting straps With an offset screwdriver loosen the screws that secure the nylon straps to manual lockout shaft lever to allow removal of switch 2 MERCURY LEVER SWITCH 3 LEADS Lor GHce MCU REE iS QVER SHAFT SCREWS STRAPS LOCKOUT SHAFT Figure 27 Location of mercury switch 2 Pull the leads through the protective sleeving Thread the leads of the new mercury switch through the sleeving Thread both leads at the same time Leads can be secured to a long wire which can draw the mercury switch leads through the sleeving NOTE Switch leads need only be connected between the proper terminals for correct operation Reversing leads between switch terminals has no effect on recloser opera tion ROT ANY SOLENOID PAACHIME TERMINAL SCREWS FE
42. parts by at least 1 2 inch CAUTION Fuse and ground leads must be connect ed to upper terminals of contactor CLOSING SOLENOID FUSE To replace a blown closing solenoid fuse simply discon nect the long lead at the closing solenoid contactor the short lead at the fuse end and loosen the mounting strap Slide out the fuse and install a new one A tag attached to each closing solenoid coil shows the color band coding and catalog number of the correct fuse to protect the coil Table also shows this informa tion Note that the voltage rating represents the phase to grounded neutral voltage Be sure fuse lead clears any grounded parts and insulating supports by 1 2 inch TABLE 1 Closing Solenoid Fuse TCC Phase to Phase Catalog Color Number Neutral Voltage kv Number Band See figure13 7 210 8 32 and 11 0 KA259R 2 Yellow 3 12 0 to 14 4 KA259R 3 Red 2 DEAL 2s rimus __ Sa rie EEG 2 Tpit Figure 13 Fuse time current characteristics for protection of closing solenoid BUSHINGS TYPE RVE RECLOSERS Maintenance of bushings is generally limited to an occasional cleaning However if a bushing should become cracked or broken replace it as follows 1 Remove hexnut lock washer and flat washers on the lower end of the bushing to release the four flexible straps 2 Remove the three hexhead cap screws that secure the bushing clamps to the head
43. r 5 16 SAE flat stl KP350 15 160 Contact yoke assembly KA16VLR 3 161 Spacer KP1505R 6 162 Rail pin 1 8 X 13 16 KP506 3 163 Stop nut elastic KP2020A2 3 164 Insulating spacer KA62R 13 165 Contact nut KP513RV 6 166 Washer retaining KP515RV1 6 167 Fiber tube includes retaining ring KP512RV 6 168 Contact cup KP514RV 6 169 Contact spring KP1519R 12 170 Spring spacer KP1513R 12 171 Garter spring KP1520R 6 172 Contact arm assembly KA539R 24 173 Contact retainer KP1514R 6 174 Cap screw fillister hd KP1694R 6 175 Ring KP3014A4 6 176 Shock absorber KP1257R 6 177 Gasket KP136W 6 178 Plate KP1293M 24 179 Plate KP213W 12 180 Plate KP521RV 48 181 Plate KP523RV 48 280 40 5 Page 27 PARTS LIST FOR INTERRUPTING MECHANISM TYPE WVE RECLOSER ONLY SEE PAGE 26 FOR RVE PARTS LIST Ti 28 Quantity Item Catalog Per 4 m No Description Number Recloser Se cima m 182 Lift rod link KP167R 6 C 183 Groove pin KP3125A2 6 184 Retaining ring WAS16 KP76 12 185 Guide contact rod KP518RV1 3 186 Lockwasher 1 4 med KP1040 6 187 Screw rd hd stl 1 4 20UNC 2A x 1 2 KP837 6 188 Contact rod assembly phases KA95W2 2 Contact rod assembly phase C KA94W2 1 189 screw stl 3 8 16UNC2A x 6 KP1068 24 190 Washer 3 8 SAE stl KP1112 48 191 Contact frame assembly phases A and B KA127W 2 Contact frame assembly KA128W 1 192 Spacer KP3013A40 24 193 Spacer KP3008A23 24 194 Contact housing assembly KA12
44. recloser by applying 25 volts dc across socket positive and socket B negative If recloser con tacts do not trip open trip solenoid may be inoper ative CAUTION Recloser should be tripped in oil to avoid damage to the dashpot in the arc interrupting mechanisms adaf FEN Cee 5 CLE we IER quete iaire Pit cert 5 i Harti are mae hia L Figure 26 Test circuit for checking bushing current transformers Ratio and polarity test circuits shown are the effec tive circuits that contribute to the testing Components not having an effect on the current flow ore not shown Dotted lines in the polarity test circuit are test leads TABLE 2 Manual Recloser Control Micro Mercury Mercury Contacts Lever switch 1 Switch 2 Switch OPEN DOWN OPEN OPEN CLOSED OPEN UP OPEN CLOSED CLOSED CLOSED UP CLOSED CLOSED OPEN BUSHING CURRENT TRANSFORMER TESTS The sensing transformers and battery charging trans former can be tested using the circuits shown in figure 26 An a c ammeter possessing a 0 to 500 milliampere range is required 280 40 5 Page 17 Assemble the test circuit as shown in the top drawing of figure 26 Connect the phases in series and close the recloser contacts with KA90R closing tool as described on page 6 Connect a 100 ampere a c test
45. ring replacement parts always include the recloser type and serial number in the ordering information With Cooper Power System s continuous improvement policy there will be some cases where parts ordered may not be exactly the same as parts furnished All parts ordered however including those of an advanced design have the same warranty as any whole item of switchgear i e against defects in material or workmanship within a period of One year from date of shipment 280 40 5 Page 21 PARTS LIST TYPE RVE AND WVE RECLOSERS ars Y 1 ag 1 7 19 14 Wwe E tai Quantity Item Catalog Per No Description Number Recloser 1 Bushing assembly standard Type WVE Recloser KA27RV2 6 Bushing assembly standard C T Type WVE Recloser KA27RV6 6 Bushing assembly 26 1 2 creep age Type WVE Recloser KA27RV4 6 Bushing assembly 26 1 2 creep age C T Type WVE Recloser KA27RV8 6 2 Bushing assembly standard Type RVE Recloser KA28RV 6 Bushing assembly standard C T Type RVE Recloser KA29RV 6 Bushing assembly 26 1 2 creep age Type RVE Recloser KA17RV 6 Bushing assembly 26 1 2 creep age C T Type RVE Recloser KA22RV 6 3 Bushing terminal Type RVE Recloser KA329R 6 4 Gasket upper bushing Type RVE Recloser KP120L 6 5 Ceramic bushing standard Type RVE Recloser KP541RV 6 Ceramic bushing standard C T Type RVE Recloser KP542RV 6 Ceramic bushing 26 1 2 creep age Type RVE Reclo
46. rts open to the outside of the assem bly b Drop the long spacer tubes into the corner holes of the two stacks The lower end of each spacer tube should be flush with the lower surface of the bottom plate Place the short spacer tubes over the portions of the long spacer tubes which pro trude from the stacks c Position the stationary contact assemblies on top of the two stacks d Place the assembly in position on the contact frame and secure it with the eight mounting bolts Reconnect the leads to the contact nuts e Install the moving contacts on the lift rod CLOSING SOLENOID Little maintenance is required for the closing solenoid However if the recloser is to be operated at another voltage replace the solenoid coil as follows 1 Disconnect the two coil leads from the closing solenoid contactor figure 11 2 Remove four capscrews on the bottom of the solenoid frame and lower the coil and base plate Lift the coil from the base plate Page 10 SHOP MAINTENANCE CONT D SUPPORTS SOLEMGIO LEADS SOLINGIO FRAME BASE PLATE GASKET CLOSING SOLEMCHD Figure 11 Removing closing solenoid coil 3 Examine the insulating supports for evidence of tracking or moisture absorption Replace any defective members as follows Remove the hexnuts lock washers and flat washers that secure the solenoid frame to the supports Then lower the solenoid frame slowly to avoid damaging the c
47. s assembly into the contact cup by twisting in clockwise Then push the cup and con tacts into the large end of the tube Insert the retaining washer and contact nut from the oppo site end Use the screwdriver to hold the fillister head cap screw while the contact nut is tightened Replace fiber plates in the arc interruption assem bly if necessary Refer to periodic maintenance page 5 Examine the insulating support stringers for evi dence of tracking or moisture absorption Failure of these members is rare but if any show track ing replace as follows a Remove the hex nuts lock washers and flat washers that secure the phenolic contact sup port plate to the stringers b Loosen the stringers with pliers and remove Refer to figure 7 and reassemble the interrupter in the following order a Place the fiber plates in two stacks on top of the bottom plate in the order shown in Figure 7 Make sure that the gasket is included The exhaust ports open to the outside of the assembly b Drop the long spacer tubes into the corner holes of the two stacks The lower end of each spacer tube should be flush with the lower sur face of the bottom plate Place the short spac er tubes over the portions of the long spacer tubes which protrude from the stacks C Position the stationary contact assemblies on top of the two stacks d Place the assembly in position on the contact frame and secure it with the eight mo
48. ser KP534RV 6 Ceramic bushing 26 1 2 creep age C T Type RVE Recloser KP539RV 6 6 Roll pin 1 8 x 7 8 Ig Type RVE Recloser KP517 6 WVE bushing assemblies cannot be dismantled and must be replaced as complete assemblies a L 8 11 Quantity Item Catalog Per No Description Number Recloser 7 Washer Type RVE Recloser KP1071R 6 8 Terminal rod standard Type RVE Recloser KP511A1 6 Terminal rod standard C T Type RVE Recloser KP511A5 6 Terminal rod 26 1 2 creepage Type RVE Recloser KP511A2 6 Terminal rod 26 1 2 creepage C T Type RVE Recloser KP511A4 6 9 Bushing rod insulation Type RVE Recloser KP509RV 6 Secure with gummed tape 0 005 X 3 4 X 9 10 Ring Type RVE Recloser KP2000A18 6 11 Sleeve Type RVE Recloser KP537RV 6 12 Shock absorber Type RVE Recloser KP1257R 6 13 Sealing plug Type RVE Recloser KP507RV 6 14 Jam nut brass hex 1 2 20NF2 Type RVE Recloser KP291 6 15 Mach bolt 3 8 16UNC2 x 1 Sstl hex hd KP738 18 16 Mach bolt 3 8 16UNC2 x 2 Sstl hex hd KP763 18 17 Bushing clamp KP1109R 18 18 Bushing clamping ring aluminum KP1111R 6 19 Lower bushing gasket KP1112R 6 Page 22 PARTS LIST TYPE RVE AND WVE RECLOSER Tank and Cover Assemblies 5280 40 52 Page 23 PARTS LIST TYPE RVE AND WVE RECLOSERS Item No Description 20 21 22 Cover plate Mounting gasket far auxiliary switch Mach screw 1 4 20UNC2 x 5 8 sstl
49. sockets are identified on each cable end A zero reading indicates continuity an infinite reading indicates an open circuit If an open circuit is discov ered the cable can be reinstalled after the open cir cuited lead is repaired or replaced Continuity between unlike pins or sockets indicates a short cir cuit Pins and sockets of the control cable designated N and P are not used CIRCUIT COMPONENTS Refer to figures 17 24 25 26 27 and 30 for identifi cation of microswitch 1 mercury switches 2 and 3 rotary solenoid trip solenoid bushing current trans formers terminal strip and the configuration of pinsockets of the control cable receptacle on the head casting The components are checked out under the three following conditions 1 Recloser contacts open and manual control lever down a All measurements are made from the pin sock ets of the control cable receptacle Figure 24 b 280 40 5 Page 15 Connect ohmmeter probes to sockets A and B The ohmmeter should read approximately 9 5 ohms If not difficulty may be present in the trip solenoid NOTE Readings within 15 percent of suggested readings are sufficient to indicate compo nents are trouble free Transfer ohmmeter probes to sockets E and F Reading of 19 ohms indicates rotary solenoid should be trouble free Insert ohmmeter common probe into socket K Insert the positive probe into sockets G H then J All three readings should b
50. t F Momentarily connect the negative lead to socket E Rotary solenoid should operate producing an easily distinguished sound Repeat two or three times Connect ohmmeter across source side B and C phases see figure 25 for identification of phas es The ohmmeter should show closing coil con tinuity effective d c resistance of coil when rotary solenoid is energized Disconnect d c source NOTE To check for d c closing coil continuity read value across d c terminals in junc tion box CAUTION If the control battery is used as the 25 volt d c test source the battery should be connected only as long as is necessary for testing purposes Lengthy connection across the rotary solenoid will create an excessive drain of energy from the bat tery although it has no effect on the solenoid itself If a station d c source is used it can remain connected to sockets E and F from step 2c through completion of testing 3 Recloser contacts closed end manual control lever up a With 25 volt d c source connected across sockets E and F close the main recloser contacts with the KAQOR closing tool as described on page 6 Ohmmeter connected across B and C phases should show loss of continuity indicating that clos ing solenoid contactor is open b Transfer ohmmeter probes to terminals C and D Zero ohms indicates that microswitch 1 is opera tive and closed Remove KA9OR closing tool and ohmmeter leads from receptacle sockets c Trip
51. t with diagonal cutters Then slide the control lever from the shaft Rotate the control lever clockwise to reduce dimension a or counterclockwise to increase dimension a Reassemble by reversing the pro cedure when the correct clearance has been set DISTANCE 1 5 CONTROL RING LEVER Figure 23 Overtravel adjustment of control lever OPERATIONAL CHECKS Circuit components attached to the recloser cover frame end operating mechanism require no mainte nance and should provide trouble free operation However if the recloser fails to operate properly per form these steps 1 Check out the control cable for continuity between pins 2 Test the circuit components associated with the recloser mechanism as described below and 3 Check the electronic control as described in the electronic control service manual bulletin 281 27SB 1 The recloser should be checked out in this order An ohmmeter voltmeter such as the Triplet Model M30 which provided reference values for the following tests is the only equipment necessary for steps 1 and 2 OPERATIONAL CHECKS CONT D CONTROL CABLE Remove the recloser from service as described on page 4 if not already disconnected Then detach the control cable from the receptacles on the recloser cover and underside of the electronic control housing With the ohmmeter check for continuity between cable pins and pin sockets Pins and pin
52. unting bolts Reconnect the leads to the contact nuts e Install the moving contacts on the lift rod ARC INTERRUPTER ASSEMBLY TYPE WVE RECLOSER see Page 6 for RVE Instructions After the WVErecloser has operated through a complete duty cycle the arc interrupter assembly should be com pletely dismantled and any worn parts replaced Refer to figure 6 1 Using a 1 2 inch thin wall socket remove the vibra tion proof hex nut that secures the contact yoke to the lift rod Gently tap contact arm to remove con tacts from the lift rod 2 Remove the terminal bolt from the top of each sta tionary contact assembly 3 Remove hex nuts flat washers and lock washers from bottom of interrupter assembly 4 Slide the arc interrupter assembly downward Figure 9 shows the individual parts in the order of removal 5 Examine the stationary contact segments to deter mine if arc erosion has spread to the load contact surfaces If so the contact segments only or the entire stationary contact assembly should be replaced S A 1 1 DER ampi 5 f canas ya f eo ex T T Set E T m u l a hM ber MAE E iS 1 les 3 F x ay qu am 278 mau n 82 o p
53. y solenoid and internal wiring is achieved by removing the head casting Proceed as follows 1 Disconnect all bushing leads at the lower end of the bushings 2 Disengage the lockout lever and the contact posi tion indicator by pushing the spring loaded cou plers inward Refer to figure 15 Turn the couplers to lock them in the disengaged position OPERATING LEVEE RING Figure 16 Auxiliary switch disconnection from operating lever before removal of head casting from operating mechanism 3 If an auxiliary switch accessory is mounted on the recloser head casting remove the E ring and wash er figure 16 to allow disconnection of the operating lever 4 Remove the two screws that secure the 0 2 MFD capacitor to the load side of the recloser frame WOTART SOLENCHD MICROSWITCH 1 TERMIHAL MERCEY STRIP SWITCH 3 Figure 17 Terminal strip attached to recloser frame 5 Disconnect the seven leads connected to the lower terminal strip of the terminal block attached to the recloser frame figure 17 Be sure to label these seven leads corresponding to the terminals from which they are disconnected Terminals are lettered A through G right to left Remove the screw that secures the nylon leadstrap to the frame above the terminal block 6 Remove the six 1 2 x 4 1 2 hexsocket head bolts that secure the frame to the head casting Be sure the recloser mechanism is supported from below before these bolts are r

Reclosers S280-40-5

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