On-load tap changer type D PDF

MASCHINENFABRIK M R REINHAUSEN ON-LOAD TAP CHANGER TYPED Inspec tion i n s t r u c t i o n s  MRzer= IA 75/80 en — 0692/500...

MASCHINENFABRIK M R REINHAUSEN ON-LOAD TAP CHANGER TYPED Inspec tion i n s t r u c t i o n s  MRzer= IA 75/80 en — 0692/500 Maschinenfabrik Reinhausen GmbH Printed in Germany Postfach 12 03 60 D-93025 Regensburg Phone: +49-941-4090-0 Fax: +49-941-4090-111 Telex: 6 5 8 8 1 ON LOAD TAP CHANGER TYPE D (Diverter switch type D 21000 and D 0466) inspection Instructions No. 75/80 Contents Page BR 1-1 TT | 3 2. Preliminaries.... c v c v v e ii innneee rss trata ence nnn. 3 21 Tools 2.2 Spare parts 23 Oil filling quantities 24 Lifting device and withdrawing height 25 Grouding 26 Operating position 3. Removal of the diverter switchinsert.......................... 4 4. Cleaning and inspection of the diverter oil compartment.......... 5 4.1 Cleaning the diverter switch o i l compartment and the t a p - changer head 4.2 Inspection of the diverter switch o i l compartment 4.3 Inspection of Geneva gear 44 Control works 45 Installation of the gear plate 46 Inspection o f tap changer head cover 5. Replacement workontapchangerhead..............c.c.cvv.... 6 5.1 Roller bolt of geneva cam wheel 5.2 Safety diaphragm 53 Worm wheel 6. Removal of the supporting cylinder, dismantling and assembly oftheinserthead................. ii iiiiiiiiiiinnnns 7 6.1 Removal of the supporting cylinder 6.2 Dismantling of insert head 6.3 Cleaning of the support cylinder with insert head 64 Control work 6.5 Reassembly of the insert head Contents 7. Replacement workontheinserthead........................ 7.1 Roller and slide square bolts 7.2 Shock absorbing springs 7.3 Energy accumulator spring Disassembly of diverter switch inserttypeD21000............. 8.1 Removal of the resistor cylinder 8.2 Removal o f the contact cylinder 8.3 Cleaning o f the diverter switch 8.4 Control work Reassembly of the diverter s w i t c h i n s e r t...................... 9.1 Installation of contact cylinder 9.2 Installation of the resistor cylinder 9.3 Attachment of supporting cylinder with insert head 9.4 Control of mechanical function of diverter switch insert and of the resistance values 10. Replacement work o n diverter switchD21000................. 10.1 Movable main and auxiliary arcing contacts 10.2 Stationary main and auxiliary arcing contacts 10.3 Braids for main and auxiliary arcing contacts 1. Disassembly of diverter switch type D0466................... 11.1 Removal o f the resistor cylinder 11.2 Removal o f the contact system 11.3 Cleaning o f t h e diverter switch unit 11.4 Control work 12. Reassembly of diverter s w i t c h i n s e r t......... Creare 12.1 Installation o f movable contact system 12.2 Installation o f the resistor cylinder 12.3 Installation o f the supporting cyliinder with insert head 12.4 Control o f mechanical function o f diverter switch insert and of the resistance values 13. Replacement work on diverter switchD0466.................. 13.1 Movable main and auxiliary arcing contacts 13.2 Stationary main and auxiliary arcing contacts 13.3 Shunt contact (movable) 14. Installation of diverter s w i t c h i n s e r t................. c c e v u n... 15. (0 111 7 TR 16. Final checks and putting intoservice........................ 16.1 Drive shafts 16.2 Equalizing t h e rotation lag 16.3 Trial operations 16.4 Protective relay 16.5 Voltage regulator 17. APPENdiX..... ii iii ie i irre tetera aan 17.1 Adjustment plans 17.2 Tools 17.3 Parts of diverter switch unit 1. GENERAL existing the oil filter unit, have to If the inspection will not be perfor- be checked for proper function. med by MR personnel please send We recommend a periodic inspec- a report for data collecting purpo- tion of the tap changer equipment The insulating oils used i n tap ses s o that we can provide further t o maintain a high reliability i n ser- changers must comply with the re- recommendations for your next in- vice. The below table indicates the spective specifications especially spection. number of tap changer operations as regards the dielectric strength after which an inspection should and the water contents, e. g. IEC be carried out. This figures have Publ. 422 (1973), VDE 0370 (1966). been experienced from t h e o i l ty- pes normally used. Inspection in- tervals vary according t o the tap changer type and the operating through-current. If the number of switching opera- tions indicated i n the table should not have been reached, inspection will become necessary after five t o six years at the latest. Tap changer Through-current Number of tap change We recommend that the inspection operations should only be carried out by well trained personnel. During such an Dit 200 up t o 200 A 100000 inspection the diverter switch in- over 150 A constant load current 70000 sert has t o be withdrawn, dismoun- D Ill 400 u p to 400 A 70000 ted, cleaned and checked. The di- over 300 A constant load current 50000 verter switch insert should not be exposed t o atmospheric humidity DI 400 up to 400 A 100000 more than necessary (max. for ten DI 800 up t o 800 A 70000 hours). On this occasion the oil i n the diverter switch oil compart- DI 1200 upto 1200 A 50000 ment will be changed. Furthermore over 900 A constant load current 35000 the drive shaft with bevel gear, mo- tor drive, protective relay and, if Table! Recommended inspection intervals 1 open-jaw wrench, size 10 2.3 Oil filling quantities 2. PRELIMINARIES 1 open-jaw wrench, size9 1 open-jaw wrench, size8 The quantity of oil necessary for The inspection should be carried 1 hexagon socket screw wrench, one OLTC unit i s according t o ta- out a s quickly a s possible with the size5 (alternatively s i z e4) b l e Il. Procure t h e necessary quan- utmost care and tidiness. The di- 1 screw driver tity of new oil and make sure t o verter s w i t c h insert should not b e 1 circlip pincers A 1 and [ 2 each have some new oil left for cleaning exposed to atmospheric humidity 1 locking pincers purposes, as well as a suitable for m o r e t h a n 1 0 hours. 1 operating key for diverter vessel for the fouled oil and a sui- switch spindle table oil pump for oil replacement. 2.1 Tools (see appendix, 1 operating key for energy s e c t i o n 17.2) accumulator 6 cocking hooks (D 0466) s o c k e t wrench, size 1 9 ash a d 3 cocking hooks (D 21000) socket wrench, size 1 7 socket wrench, size 1 3 eh 2.2 Spare parts socket wrench, size 10 eh kV 30 45 60 80 110 150 mh socket wrench, s i z e8 When ordering spares please indi- open-jaw wrench, size 19 md cate always OLTC serial number Litres 8 5 9 0 110 1 1 0 130 140 mh open-jaw wrench, size 17 and number of switching opera- open-jaw wrench, size 13 — tions carried out. Table l l Oil filling quantities 3 2.4 Lifting device and 3. REMOVAL OF THE DIVERTER withdrawal heights SWITCH INSERT Procure a suitable lifting device for Shut all stop valves between oil withdrawing the diverter switch in- conservator, transformer tank and sert. Withdrawal heights see table tap changer head. lll. The weight of the insert i s about 150 kg. Lower the oil level i n the tap changer head. For t h i s purpose kv. 30 45 60 80 110 150 open the vent screw of the tap changer head cover (cap M16 mm 900 900 1000 1100 1300 1400 wrench size 22, socket head cap screw M6) and open the drain Table l l l Withdrawal heights i n m m valve of the tap changer head. If a stationary oil filter unit i s in- stalled, operate the sample valve of the return pipe and put the oil 2.5 Grounding filter unit i n operation. Switch off the transformer and Drain oil from the tap changer ground it visibly (grounding leads, head until the oil level i s just grounding switch). below the engergy accumulator (look through the inspection win- 2.6 Operating position prior to in- dow of the tap changer head spection cover). I t i s possible t o remove t h e Unbolt the ground connection o f diverter switch insert i n any the tap changer head cover (screw operating position. We recommend M12 wrench size 19) and remove however the diverter switch t o be cover screws M10 wrench size 17) withdrawn in the adjustment posi- with washers (fig. 1). tion for inspection works i n the tap changer head can only be carried Remove tap changer head cover out i n this position. The OLTC can and gasket. When deposing the be set i n the adjustment position tap changer head cover take care by operating the motor drive of the inspection window and the clockwise with the hand crank. safety diaphragm. Remove the four nuts M12 (wrench size 19) with Caution: Do not operate the motor pressure springs (fig. 2). drive until t h e diverter switch in- sert h a s been reinstalled. Withdraw diverter switch insert from the o i l compartment i n ver- For avoiding involuntary energiza- tical direction (fig. 3) and depose it tion trip the motor protective o n a clean surface. switch of the motor drive or engage the hand crank respective- Pump off the remaining o i l from ly. the diverter switch o i l compart- ment. 4. CLEANING AND INSPECTION OF THE DIVERTER SWITCH OIL COMPARTMENT 4.1 Cleaning the diverter switch oil compartment and the tap changer head Flush inside of t h e o i l compart- ment and the tap changer head with new transformer oil (fig. 4). Remove all carbon particles. Open t h e s t o p valve between t a p changer head and oil conservator: Flush the pipe leading t o the oil conservator until only clean oil i s flowing into the oil compartment. Shut the stop valve, flush the oil compartment with new oil and drain the oil compartment com- pletely. 4.2 Inspection o f t h e diverter s w i t c h o i l compartment Check condition of connecting contacts and laminated paper cylinder. 4.3 Inspection of Geneva gear Before inspecting t h e Geneva gear i t i s necessary t o remove t h e gear plate. Prior to the removal note the marks of the indicating discs and gear plate as well as position of the coupling hub (fig.5, 6 and cor- responding adjustment plan). Prior to the removal t o the gear plate loosen coupling of drive shaft by removing the coupling bolt and moving the coupling tube onto the worm shaft. After removal of the four screws M 1 0 (wrench size 17) and of the locking plates it i s possible t o withdraw the gear plate (fig. 7). B e f o r e r e m o v i n g t h e Geneva c a m wheel n o t e t h e position o f roller b o l t a n d t h e 0-mark ( f i g. 8 , 9 ) 4.4 Control w o r k Check the radial clearance between roller bolt and roller of the Geneva cam wheel. Max. clearance 0,6 m m (fig. 10). Check worm wheel and worm drive (wear). Backlash should be 1.5 m m at maximum. (if replace- ment should become necessary please refer to point 5 replacement work on tap changer head«). 4.5 Installation of the gear plate When installing the Geneva cam wheel take care of the sliding disk situated between the Geneva cam wheel and the bush (fig. 10). The installation of the gear plate i s carried out stepwise in the reverse order of the removing procedure (note marks and removing position). Lock fixing screws of gear plate and Roller the coupling bolts. 4.6 Inspection of tap changer head cover Check safety diaphragm for deflec- tion and corrosion. In case of corro- 12 sion i t should be replaced (refer t o point 5 »replacement work on tap changer head«). After having check- Protective coating o n top side ed the safety diaphragm put cover o n the tap changer head (take care of the gasket and attach the head cover b y s o m e screws). = AN = ZZ 7 7 ASIEN RR.) ESE, gf = ¢ 5. REPLACEMENT WORK ON Attach roller and circlip. i s outside (fig. 12). TAP CHANGER HEAD 5.2 Safety diaphragm 5.1 Roller bolt o f Geneva c a m wheel (fig. 11) After removal o f 1 2 screws M 10x 35 (w.s.7) the pressure flange Remove outside circlip and roller: can be removed together with Remove rivet by using drill 11- diaphragm and gaskets. Take care 11,5 m m @ and remove bolt. of lock washers. Press i n replacement bolt and rivet The re-installation i s effected i n the by using a suitable backing support. reverse order. Make sure that the Check the bolt for perfect seat. protective coating of the diaphragm 5.3 Worm wheel (fig. 13) Loosen lock washer (1) of the outgoing drive shaft, remove shaft (2), loosen lock washers (3) and (4) o n the bearing. VE NC SSSR I EN [HTINNNT TH ¥) Put in auxiliary washers between (777A base plate and worm wheel. The Vian ) bearing can be removed from the base plate by striking through the Aux. washer holes of the worm wheel (on the outside of the ball bearing). Remove worm wheel and auxiliary 13 washers. The installation o f the worm wheel i s t o be carried out i n the reverse order of the removal. Mind a control position of worm wheel and worm shaft. 6. REMOVAL OF THE SUPPOR- TING CYLINDER, DISMANTL- ING AND ASSEMBLY OF THE INSERT HEAD 6.1 Removal of the supporting cylinder Remove flange screws M 6 (wrench size 10) w i t h n u t s a n d lock washers. Remove supporting cylinder i n ver- tical direction. Depose supporting cylinder on a suitable surface and take care of the switch crank tube (fig. 14). 6.2 Dismantling of insert head Remove outside circlips with washer and drive crank (fig. 15). 15 Loosen the four nuts M 1 2 (wrench Lh) =: : size 19) with lock tabs and remove nh energy accumulator (fig. 15). Loosen the two screws M 8 (wrench size 13) with lock tabs and remove guide with energy ac- cumulator lever (fig. 16). Remove outside circlips with washers as well as paw! with trip lever and note O-mark (fig. 17). Remove bumper supports and 16 sliding disk on roller bolt of switch crank (fig. 18). 6.3 C l e a n i n g o f t h e s u p p o r t cylinder with insert head Clean thoroughly with transformer oil the support cylinder and switch crank tube as well as all parts of the insert head. 6.4 Control work Condition o f support c y l i n d e r a n d o f s w i t c h crank tube (hard paper). Check radial clearance between roller bolt and roller as well as slide square bolt and slide square of energy accumulator lever. Max- imum admissible clearance 0,6 mm (fig. 19). Inspect shock absorber springs (replacement after 100.000 swit- c h i n g operations), energy ac- cumulator spring (replacement after 400.000 oerpations) and p a w l spring (if replacement should become necessary please refer t o point 7 »replacement work on the insert head»). 6.5 Reassembly of the insert head The reassembly of the insert head i s t o be done stepwise i n the reverse order. Make sure that there is a clearance of about 0,4mm bet- ween energy accumulator slide and guiding bars after the tighten- ing o f the four nuts M 1 2 (fig. 15). Lock all screws and nuts. 7. REPLACEMENT WORK ON INSERT HEAD Slide square bolt \ [T] 7.1 Roller and slide square bolts YUL ee 4 | Remove by means of drilling the ri- Rotler veting of the disc (drill 9-9,5mm @) and the riveting o f the bolt (drill 13,5-14mm @, fig. 20). Remove the disk, roller or slide square and bolt. Press i n the repla- cement bolt and rivet by using a suitable support. Check the perfect seat o f bolt and smooth movement of roller and slide square. 7.2 Shock absorbing springs Loosen screw M 6 (w.s. 10) of one bracket o n the support. During di- sassembly take notice of the num- ber of shock absorbing and com- pensating plates for reassembly. If applicable compensating plates must be reinstalled in the same number and place. In order to avoid interchange of shock absorbing spring packs, it i s recommendable t o change one pack after the other ( f i g. 21). After installing the bracket lock the fi- Xing screw. 7.3 Energy accumulator spring Loosen the ten countersunk head screws M 5x10, remove guiding rails, withdraw spring unit of ener- gy accumulator housing and ener- gy accumulator slide (fig. 22). The installation of the new spring system i s performed i n the reverse order. Lock t h e countersunk screws by punching. Diverter s w i t c h D 0466 2 x 2 5 k p or 2x 250 N resp. Make sure that the spring force va- lue which i s marked o n the spring screw i s indentical with the value of the replaced spring system. Differences of spring force of ab- out + 6 % are admissible. The spring system incorporated i n the various OLTC types are: Diverter switch D21000 2x31kp or 2x310N resp. 8. DISASSEMBLY OF DIVERTER SWITCH INSERT TYPE D 21000 (fig. 23) In order t o clean the diverter switch and t o check the contact wear it i s necessary t o withdraw the resistor cylinder and the con- tact cylinder. 8.1 Removal of the resistor cylinder Remove the insulating protective ring (take care of the 3 plastic sup- porting bolts) a n d loosen resistor connecting screws M 5 (w.s.8) together with lock tabs. After removal of the bushes i t i s possi- ble t o withdraw the resistor cylinder. Note the installation posi- tion (fg. 24, 25). 8.2 Removal o f t h e c o n t a c t cylinder (fig. 26, 27) Loosen the 12 flange screws M 6 (w.s. 10) o n the bottom bearing with lock tabs. Before withdrawing the contact cylinder note the posi- tion of the guiding bolt (fig. 28) t o the bottom bearing (OLTC serial number). 8.3 Cleaning of the diverter switch Clean thoroughly contact cylinder, resistor cylinder and movable con- tact system with transformer oil. Remove carbon particles par- ticularly from all hard paper com- a ponents and transition resistors. 4 Flush all parts thoroughly with [oo gl. - new oil. al A ba a ” 20 8.4 C o n t r o l w o r k Re smooth movement by rotating the Inspect contact wear of the switch spindle. Replacement of movable and fixed switching and braids should be carried out after auxiliary contacts (fig. 29) as well about 400.000 switching opera- as condition and movability of tions. sliding contacts and output con- tacts. Visual inspection of condition o f resistors and laminated paper Check the distance of the protec- cylinder. tive gaps, distance = 5 m m (fig. 28). For replacement o f contacts a n d contact braids please refer to sec- Check condition o f m a i n and aux- t i o n 1 0 »replacement work o n iliary arcing contact braids and of diverter s w i t c h D21000«. the movable contact system for 28 10  Fig. 29 " Diverter switch D 21000, checking arcing contacts: Max. permissible contact wear - Hil a =5mm, } Contact material: Copper = h | | 1 — Movable main and auxiliary arcing contact 2 — Stationary main arcing contact | | 3 — Stationary auxiliary 4 ! arcing contact [) 1 as ~115 | - N5ke [] a a ~ Arcing area Arcing area =g [14 id Fe Hii == 9. REASSEMBLY OF THE DIVERTER SWITCH INSERT 9.1 Installation of contact cylinder To attach the contact cylinder it i s necessary t o cock the movable contact system. Prior t o cocking i t is necessary t o insert the cocking hook into the guiding slots o f the auxiliary contacts located t o the right side of the output contact. Make sure that the spring screws of the contact spring are engaged i n the drive element (fig. 30, 31). Cock the contact system an- ticlockwise b y means o f t h e operating key until stop (fig. 32). 11 Attach contact cylinder on the 9.4 Control of mechanical function movable contact system; pay at- o f diverter switch insert and o f tention to the position o f the guide the resistance values bolt to the output contact with OLTC serial number (refer t o point In order t o control the functioning 8.2). of the diverter switch insert attach operating key t o the coupling and Screw contact shells with bottom operate the diverter switch. Control flange and lock the screws (fig. 33). the values o f transition resistors. The resistance measurement is to Operate contact system by means be performed by means o f a of the operating key clockwise, suitable measuring bridge on both remove cocking hooks and then sides of the contact shell and o n operate anticlockwise up t o the any sector. The contact system stop. T h u s t h e withdrawing posi- must be open between the measur- t i o n o f t h e diverter s w i t c h i s reach- ing points. ed again. Compare the determined values 9.2 Installation of t h e resistors with those o n the name plate. Dif- cylinder ferences of + 10 % are admissible (fig. 34, 35). The installation of the resistor cylinder i s performed in the reverse order according t o point 8.1 Lock resistor connecting screws M5 (w.s. 8) after tightening them. Insert insulating guide ring. 9.3 Attachment of supporting cylinder with insert head Prior t o the attachment of the sup- porting cylinder with insert head note the position of energy ac- cumulator slide (fig. 15) as well as the position of the guide bolt hole and that of the guide bolt of the separating flanges. In order to avoid damages of the resistor cylinder i t i s necessary t o attach the cylinder i n a vertical and centrical position (section 6.1). =PAY Connect both separating flanges Lik4 b y means o f bolts a n d n u t s locked —i d- p by lock washers. 35 12 10. REPLACEMENT WORK ON DIVERTER SWITCH D21000 10.1 Movable m a i n a n d auxiliary arcing contacts Loosen fixing screws M 8 (w.s. 13) and remove contact. Mind position of lock tabs during installation and removal procedure. Lock all fixing screws (fig. 36) after contact replacement. 10.2 Stationary main and auxiliary arcing contacts Loosen countersunk screws M 6 (w.s.4 or w.s. 5, hexagonal recess) of the sliding contact groups on the main arcing contact and screws M 6 (w.s. 10) of the protec- tive arc gaps o n the auxiliary arc- ing contact (fig. 37). The counterbores o f the insulating spacers have t o point t o the con- tact during the installation o f the contacts (fig. 38). Mind the facet of the fastening plate and the elasticity of the sliding contact group and check the distance of the protective arc g a p s (desired d i s t a n c e = 5mm). Lock all screw connections. 10.3 Braids for main and auxiliary arcing contacts Loosen the screws M 6 (w.s. 10) and remove braids. Lock the screw connections after the replacement (fig. 39, 40). 11. DISASSEMBLY OF DIVERTER SWITCH TYPE D 0466 (fig. 41) To clean the diverter switch insert and t o check the contact wear it i s necessary t o withdraw the movable contact system. 11.1 Removal o f t h e resistor cylinder Loosen the connecting screws M 6 (w.s. 10) for type D 1800/ D1 1200 the countersunk screws M 6 (wrench size 4 o r wrench size 5 for hexagonal recessed screws) o n the resistor connecting contact (fig. 41). Withdraw resistor cylinder and note position of the potential spr- ing t o the guide bolt (fig. 42, 43). 11.2 Withdrawing the movable contact system Prior t o withdrawing the movable contact system note the 0-mark of the guiding plate t o the guide bolt of the separating flange (fig. 44). Put diverter s w i t c h upside down, loosen the 3 screws M 6 (w.s. 10) o n t h e c o n n e c t i n g b a r s a n d set contact system i n t o a n in- termediate position by turning the shunt contact (fig. 45). By exerting an axial pressure on the bottom guiding plate i t i s possible t o withdraw the movable contact system from the contact cylinder. Thereby tractive resistance exists (fig. 46, 47). 11.3 Cleaning the diverter switch unit Clean thoroughly with transformer oil the contact cylinder, resistor cylinder and movable contact system, remove carbon particles from all hard paper components and transition resistors. Flush thoroughly a l l parts w i t h n e w oil. 14  F i g.48 Diverter switch D0466, checking arcing contacts: Max. permissible contact wear a=5mm, Contact material: Tungsten 1 — Stationary main and aux- iliary arcing contact 2 — Movable main and auxiliary arcing contact 11.4 C o n t r o l s Check also condition of current leads, pressure springs and rollers Inspect the contact wear of the of the shunt contact. A replace- movable and stationary switching ment of the movable shunt contact and auxiliary contacts. Make sure becomes necessary after 300.000 that the sum of lever clearance or when the switching operations and contact wear will not exceed contact roller clearance exceeds the max. permissible wear until the about 1 m m (fig. 50). next inspection (fig. 48). Visual inspection of resistors and Check condition of contact braids laminated paper parts. as well as smooth movement of the movable contact system by For replacement o f arcing contacts rotating the switch spindle. Check and movable shunt contact please sliding and output contacts for refer t o section 13 »replacement their condition and movability as work on diverter switch D 0466«. well a s clearance o f t h e protective gaps, electrode distance = 5 m m (fig. 49). 15 12. REASSEMBLY O F DIVERTER SWITCH INSERT 12.1 I n s t a l l a t i o n o f m o v a b l e contact system To install the movable contact system i n t o t h e contact cylinder the contact system i s to be cock- ed. Prior t o cocking put the con- tact system upside down and in- sert the 3 cocking hooks into the existing holes of the guide plate and the sliding shoes of the main arcing contacts (fig. 51). Make sure that the spring screws of the contact springs are engaged i n the diverter element. To cock the contact system rotate the drive element clockwise by means of a suitable tool until the stop (fig. 52). Press in the auxiliary arcing con- tacts by hand so that the cocking hooks engage i n the holes o f the sliding shoes (fig. 53, 54). Close right side of the shunt con- tact (fig. 55) and slide the cocked contact system i n t o t h e c o n t a c t cylinder t o the final stop (fig. 56). Make sure that the 0-mark coin- cides with the guide bolt (fig. 56), the screening rails will not be damaged and that the connecting bars come to lie on the copper segment (between both braids, see fig. 57). 16 The removal of the cocking hooks i s effected by careful moving of the contact system in both swit- ching directions by means of the operating key. Start moving c l o c k w i s e ( f i g. 58). T h e c h e c k t h e hooks (6 pieces) which are below the diverter switch for com- pleteness and damage. Move contact system by means of the operating key anticlockwise up t o the stop (original position), at- tach the connecting bars by screws M 6 (w.s. 10), lock tabs and washers. 12.2 Installation o f t h e resistor cylinder Install resistor cylinder (potential spring towards guide bolt) screw in by hand all resistor connecting screws M6, then tighten and lock them. 12.3 Installation o f the supporting cylinder with insert head Prior t o the attachement of the supporting cylinder with insert head note position of the energy system must be open between the accumulator slide (fig. 15) as well measuring points. as the position of the guide bolt hole and that of the guide boit of Compare the determined values i the separating flanges. To avoid with those of the name plate. Dif- damages on the resistor cylinder i t ferences of + 1 0 % are admissible R1 R2 R2 R l i s necessary t o attach the cylinder (fig. 59, 60) i n a vertical and centrical position (point 6.1). Connect both separating flanges by means of bolts and nuts, locked by lock washers. 12.4 C o n t r o l o f m e c h a n i c a l f u n c - tion of diverter switch insert and of the resistor values To c o n t r o l the m e c h a n i c a l f u n c t i o n of t h e diverter s w i t c h insert attach o p e r a t i n g key t o t h e c o u p l i n g a n d o p e r a t e t h e diverter s w i t c h bet- ween both operating positions. Control values o f transition resistors. The resistance measure- ment i s t o be effected by means of a suitable measuring bridge o n both sides of the contact shell and o n every sector. The contact 60 17 13. REPLACEMENT WORK ON (w.s. 10) o n t h e pressure plates, t h e DIVERTER SWITCH D 0466 fixing screws M 5 (w.s. 8) o f the current rails (mind nuts M 5 i n the 13.1 Movable main and auxiliary slots of the guid plates) and nuts arcing contacts M 5 (w.s. 8) of the current take-off braids (fig. 62). The movable main and auxiliary ar- cing contacts will be supplied Mark the installation position preassembled incl. assembly of before removing the guide plate levers and bearing bolts. (fig. 63). Remove l o c k washers a n d swit- c h i n g s p i n d i e ( f i g. 61), t i l t t h e c o n - tact system, loosen 6 screws M 6 SREY Et es ie EY Taltiyg Mark the installation position of the switching star and remove the movable contact system(fig.64... 66). 18  Ae. NTR EY J: ETT.. Loosen bearing bolts o n top and W i l l sCx aipee dctbolin G E E R hed G e t Sis ET ;. ria bottom of the switching star and withdraw the contacts p 9 (fig.67... 69). Replacement should : 3 be carried out sector by sector. Remove contact tension spring after having removed contacts and lock washers (fig. 70). Mind installation position (fig. 71) when reinstalling the contact ten- sion springs i n the spare contacts. For the installation of the com- plete spare contacts the boreholes of the sliding shoes must be o n the side of the carrier bolt of the main arcing contact (fig. 72). The remaining reassembly of the movable contact system has to be carried out in the reverse order of the disassembly. Fasten and lock all screw connec- tions and check the contact system for smooth operation. 72 71 19 13.2 Stationary main and auxiliary arcing contacts Loosen nuts M 6 (w.s. 10) and remove lock washers, connecting plates, spacers, discs, protective arc gap and contact pieces (fig. 73). Loosen screws M 6 (hex- agonal recess 4 o r 5 m m ) , remove sliding contacts w i t h contact bridge (fig. 74), loosen nuts M 6 (w.s. 10) and dismount pressure springs ( f i g. 7 5... 7 7 ). Mind contact bushings and in- sulating discs of the pressure spr- ing. The installation of the main and auxiliary arcing contacts i s carried out in the reverse order o f the disassembly. Lock all screw connections, check the sliding contacts for proper suspension and the distance o f the protective arc gap (distance = 5mm). 13.3 Shunt contact (movable) After loosening 2 nuts M 1 2 (w.s. 19) on the bottom under side of the diverter switch bottom bear- ing the movable shunt contact star with bearing bolt can be lifted. M i n d f o r reinstallation t h a t t h e t o p side of the movable shunt contact star (fig. 78, 79) points t o the con- tact system. 20 A f t e r f a s t e n i n g t h e nuts, t h e AAR 16.2 Equalizing the rotation lag BEIT SCX movable shunt contact star must &% q [X b e easy movable a n d have a n axial Equalize the rotation lag between clearance of 0,1 & 0,05mm o n t h e the motor drive and the OLTC. This b e a r i n g p l a t e ( f i g. 80). lag should be about the same in 0 1 +005 both directions. Lock the nuts by punching. 16.3 Trial operations T h e trial operations are t o b e per- formed across the complete regulating range. During the trial operations take care that the posi- 80 ¥ tion indication of the OLTC and motor drive correspond. 14. INSTALLATION OF DIVERTER SWITCH INSERT Check the electrical and mechanical position limitation of Remove t a p c h a n g e r h e a d cover the motor drive. and lower slowly and carefully the diverter switch insert into the oil 16.4 Protective relay compartment (fig. 81). Check the tripping function of the When coupling the diverter switch relay. Open the hood and press insert it could become necessary push-button »TRIP«. Check that all to rotate the diverter switch coupl- circuit breakers of the transformer ing until the coupling engages. operate properly. Press p u s h - The diverter switch insert i s fasten- button »RESET«. Close the hood ed by means of 4 compression spr- and tighten it. ings and nuts M 1 2 (w.s. 19) which are f i l l e d a n d screwed i n u p t o o n e 16.5 Voltage regulator revolution before e n d o f t h e thread (fig. 82). If the OLTC i s operated by a voltage regulator: 16. OIL FILLING Check setting of voltage level, bandwith and delay time according Fill the diverter switch oil compart- t o i t s Operating Instructions in ment with new tansformer oil up t o order t o avoid unnecessary tap the level of the protective relay change operations. pipe connection, put the cover o n t h e t a p c h a n g e r h e a d a n d fasten it. O p e n all s t o p valves between oil conservator, transformer tank and tap changer head and fix groun- ding connection with screw M 1 2 (size 19) of the tap changer head 16. FINAL CHECKS AND cover. PUTTING INTO SERVICE If a stationary oil filter i s installed 16.1 Drive shafts operate the filter unit until oil cir- c u l a t e s w i t h o u t bubbles. Check the entire drive shafts especially the coupling bolts and F i l l u p t h e o i l conservator t o i t s c o u p l i n g p o i n t s (axial clearance original level with new transformer must be approx. 2mm). Check oil. grease c o n t e n t s o f bevel gear. 21 17. APPENDIX 17.1 Adjustment plans Designation key for tap changer and basic c o n n e c t i o n d i a g r a m.............. coi ii iii. 894 547 OLTC with reversing switch (without 3 W ) and coarse tap selector, 1 0...18CoMaACES.. oooh iii i ii te ri trate as 894 216 OLTC with reversing switch ( 3 W only) 10...18contacts..........cci iii ii i ities 894 215 OLTC without change-over selector 10,14,18contacts......... ccc i eee 894 218 OLTC without change-over selector 12,16 Contacts... coi ii iii errata aaa 894 217 17.2 Tools Toolsforboltsand n u t s........ccovii i i iiiii erin rnnnns 894 404 Special tools forinspection.........c.covii iii i i i i ei 894 405 17.3 Parts of diverter switch unit Inserthead.........ciiiiiiiiirrerenreancnaaaanrarnrnnnns 894 422 Movable contactsystemD21000.....................c0vvnn.. 894 467 Stationary contact s y s t e m D 2 1 0 0 0.............. cocina 894 418 Movable contactsystemDO0466.................iiiieiiannn 894 421 Stationary contact system DO0466..................c0iiiinn. 894 420 22  ON-LOAD TAP CHANGER D III 400 — 110 7 150 — 14 27 1G wd TYPE BASIC CONNECTION DIAGRAM N U M B EOF R —— TAP SELECTOR SIZE POLES MAX.RATED THROUGH - —— CURRENT IN AMPERES SERIES VOLTAGE Hames INSULATION TO GROUND BASIC CONNECTION DIAGRAM 14 27 PITCH OF CONTACT CIRCLE / \ VN MAX.NUMBEROF MID.POSITIONS) CHANGE -OVER TAP SELECTOR SERVICE POSITIONS SELECTOR \ CN COARSE REVERSING TAP SELECTOR SWITCH CHANGE—OVER SELECTOR WITHOUT WITH G w l / \ 10 10 09 19 * } NO DESIGNATION WITHOUT 12 12 1" 23 — OVER CHANG E SELECTOR 14 14 13 27 16 16 15 3 18 18 17 35 MASCHINENFABRIK On-load tap changer type D M REINHAUSEN 894547:1E/TNO50 Designation code for tap changer and basic connection diagram jl  DIVERTER SWITCH BEVEL GEAR —O C ) ~~ DRIVE SHAFT POSITION INDICATOR IDLE COUPLING GENEVA GEAR COUPLING 2 030000 A = X i ©) TAP SELECTOR GEAR io A Ke » ac CONTACT CONTACT PLANE 1 PLANE 2 MASCHINENFABRIK On-load tap changer type D MRF" REINHAUSEN Adjustment pian for R r ty eer selector 894216:0E/TJ050 1W, 1G, 3G, tap s e l e c tDo30000/D r 31000, 10.... 18 tap selector contacts |  | DIVERTER SWITCH BEVEL GEAR i! i DRIVE SHAFT ® |» (+) (:) POSITION: INDICATOR | i IDLE COUPLING “i Ls i +h ; GENEVA GEAR COUPLING 1 i | COUPLIN G 2 D 30000 WoW t+— TAP SELECTOR GEAR i / CONTACT PLANE 1 CHANGE -OVER SELECTOR POSITION(D 30000) w2 CHANGE-QVER SELCTOR rEDowoe POSITION D 3 1 0 0 0 A S CHINENFABRIK On-load tap changer type D 894215:0E/TJ050 REINHAUSEN Adjustment plan for OLTC with reversing switch ( 3 W only), EE EEE — tap selector D 3 0 000/D 31000, 1 0... 1 8 tap selector contacts l  DIVERTER SWITCH Re) BEVEL GEAR 5 n g £33 CBN ————— p e i ——3 “™~ DRIVE SHAFT s gr (®) 1} POSITION INDICATOR a aA IDLE COUPLING | La i GENEVA GEAR MOTOR DRIVE COUPLING K 1. © iy COUPLING2 i's TAP SELECTOR GEAR 18CONTACTS 9 18CONTACTS 10 14 CONTACTS 7 14 CONTACTS 8 10 CONTACTS S 10CONTACTS 6 CONTACT CONTACT PLANE 1 PLANE 2 MASCHINENFABRIK On-load tap changer type D 894218:0E/TJ050 M REINMAUSEN Adjustment plan for O L T C without change-over selector, Tap selector D 3 0000/D 31000, 1 0 , 1 4 , 1 8 tap selector contacts  7 = DIVERTER SWITCH |AR 1 1 : DRIVE SHAFT (1d POSITION INDICATOR & Yea ix a IDLE COUPLING 3 Ab yy 11%) \% ¥) (C," 4 4S | : GENEVA GEAR ® COUPLING 1 | COUPLING 2 Vo : AE re an - — TAP SELECTOR GEAR 16 CONTACTS 9 16 CONTACTS 8 12CONTACTS 1 12CONTACTS 6 CONTACT PLANE 1 —— 177) g av oF 1 V2 [+ IW) [ wl TBoes CHIN ENFABRIK On-load tap changer type D 894217:0E/TJ050 MIR reise Adjustment plan for O L T C without change-over selector, EEE Ess | Tap selector D 3 0 000/D 31000, 1 2 and 1 6 tap selector contacts 1  §% A B C ITEM | No. DESIGNATION FIG.|DIN WRENCH SIZE 1 1 DOUBLE ENDED OPEN JAW WRENCH A895] 8 x 10 2 1 SINGLE ENDED SOCKET WRENCH —- o] 3 1 DOUBLE ENDED OPE JAW WRENCH A 13 x 17 4 1 DOUBLE ENDED OPEN JAW WRENCH A 19 x 22 5 1 DOUBLE ENDED SOCKET WRENCH B |896] 8 x 10 6 1 DOUBLE ENDED SOCKET WRENCH B 1896] 13 x 14 7 1 DOUBLE ENDED SOCKET WRENCH B 1896] 17 x 19 8 1 HEXAGON SOCKET SCREW KEY Cc |911 4 9 1 HEXAGON SOCKET SCREW KEY Cc [911 5 M MATCHINENF:ABRIK On-load tap changer type D 894404:0E/TNO50 EEE S———— Tools for bolts & screws for inspection |  ® @ — 815 BE) LAS pa 1 1 3 } a Ti } fd | 10,5 12 b = e e 30 = —— RE 2 42 — of Ll = N f Ww — [=] i ITEM | No. DESIGNATION MR - No. 1 1 |WRENCH FOR SWITCHING SPINDLE 040 994 2 1 |WRENCH FOR ENERGY ACCUMULATOR — 3 3 |COOKINGHOOK FOR DIV. SWITCH D 21000 — 4 6 [COOKING HOOK FOR DIVERTER SWITCHDO6S 020 462 M S CHINENFABRIK On-load tap changer type D 894405:1E/TN050 = T Special tools for inspection ]  PARTS-NO. DESIGNATION 001 083 ENERGY ACCUMULATOR LEVER PREASSEMBLED 001 084 SWITCHING CRANK PREASSEMBLED 001 085 SUPPORTING BRACKET PREASSEMBLED 001 086 SUPPORTING BRACKET PREASSEMBLED 001 089 SUPPORTING PAWL PREASSEMBLED 001 090 PAWL SPRING PREASSEMBLED 001 091 ENERGY ACCUMULATOR LEVER PREASSEMBLED 001 093 ENERGY ACCUMULATOR SLIDE COMPLETE 001 095 (D 0466) SPRING UNIT COMPLETE 001 096 (D 21000) SPRING UNIT COMPLETE 009 991 { D 0444) SPRING U N I T COMPLETE 003 340 INSERT HEAD PREASSEMBLED 003 341 DRIVE CRANK PREASSEMBLED 004 211 DIVERTER SWITCH POSITION INDICATOR 020 549 SUPPORT CLAMP 020 553 PAWL BOLT 020 554 WASHER 020 556 WASHER 020 570 JACKET 020571 BUMPER SPRING HOLDER 020572 LOCK TAP 020573 SLIDING RAIL 020574 BOLT 020 575 WASHER 020 582 TRIPPING ROCKER 020 583 ROLLER BOLT 020 584 RIVET DISC 020 585 TRIPPING BOLT 020 592 RIVETING CASING 020 596 ROLLER BOLT 020 597 RIVET DISC 020 600 ENERGY ACCUMULATOR HOUSING 020 601 SUPPORT RAIL 020 602 LEVER BOLT 027 073 WASHER 065 907 WASHER 450 358 HEX HEAD SCREW M6 x 20 450 384 HEX HEAD SCREW M8 x 18 450672 RECESS HEAD SCREW MS x 10 451 238 HEX HEAD NUT M6 451 241 HEX HEAD NUT M12 451 235 DISC 451 404 LOCK TAB 451 406 LOCK TAB 452 031 GROOVED BALL BEARING 452 061 GROOVED BALL BEARING 452 061 GROOVED BALL BEARING 452 208 GUARD RING 452 212 GUARD. R I N G 452 227 GUARD RING 452 245 GUARD RING 452 262 GUARD RING 550 011 BUMPER SPRING 560 207 COMPENSATION BUMPER SPRING 550 397 WASHER M p r y ABRIK MASCHINENF On-load tap changer type D Parts designation 894 p b  MASCHINENFABRIK MR raiatsen On-load tap changer type D 894 422 Parts of insert head  PARTS-NO. DESIGNATION 001 557 C O N N E C T I O N B R A I D PREASSEMBLED 001 559 D R I V E S T A R BOTTOM PREASSAMBLED 001 561 CONTACT TENSILE SPRING 001 562 S W I T C H I N G C O L U M N PREASSEMBLED 001 563 MAIN ARCING CONTACT BRAID PREASSEMBLED 001 564 AUXILIARY CONTACT BRAID PREASSEMBLED 001 565 CONTACT CARRIER PREASSEMBLED A 001 566 CONTACT CARRIER PREASSEMBLED B 001 567 CONTACT CARRIER PREASSEMBLED C 001 568 CONTACT CARRIER PREASSEMBLED D 020 548 LOCK TAB 020 671 LOCK TAB 022 551 BEARING FLANGE 022 552 CONTACT GUIDE 022 555 OUTPUT CONTACT 022 558 DIVERTER SWITCH DRIVE SHAFT 022 560 DRIVE STAR TOP 022 561 LEVER BOLT 022 562 LEVER 022 563 Disc 022 565 GUIDE PLATE TOP 022 569 PRESSURE P L A T E 022570 PRESSURE PLATE 022 571 LOCK TAB 022575 INNER BRAID LEAD PLATE 022576 OUTER BRAID LEAD PLATE 022577 LEVER BOLT 022578 DISC 022 579 SPACER 022 580 DISC 022 583 SPACER 0 2 2 589 BEARING BOLT 022 590 CONTACT 022 591 LOCK TAB 024 135 LOCK TAB 031 995 CONTACT LEVER 050 226 C O N T A C T SUPPORT 420 654 HEX HEAD NUT M8 420712 DISC 450 063 HEX HEAD SCREW M6 x 30 450 355 HEX HEAD SCREW M6 x 16 450 356 HEX HEAD SCREW M 6 1 8 x 450 385 HEX HEAD SCREW M8 x 20 450 386 H E X H E A D SCREW M S x 22 450 500 HEX HEAD SCREW M8 x 22 451 238 HEX HEAD NUT M6 451 364 WASHER 452 028 GROOVED BALL BEARING 452 204 GUARD RING 452 221 GUARD RING 452 256 GUARD RING 550 670 PRESSURE S P R I N G 564 114 WASHER Diverter switch D 21000 — Movable contact system MASCHINENFABRIK Parts designation MRswiea™" On-load tap changer type D 894 467 Parts o f diverter switch u n i t D 2 1 0 0 0 |  ye 022958 02251 450355 450500 02251 SHIR ) 020671 — — -0225M | m— ~022570 022565 I Pa 022577 001565 - 001568 02259 | 0 450386 022589 001562 42072 02067 } 451364 450356 ” "\ 420654 / 45038! os 9 N C —> CI \ 001557 M eam O n - l otap a dchanger type D 894 467 Parts of diverter switch unit D 2 1 000 PARTS-NO. DESIGNATION 0 0 1 552 S L I D I N G CONTACTS COMPLETE 001 654 SLIDE CONTACT PREASSEMBLED 001 555 S E P A R A T I N G F L A N G E PREASSEMBLED 0 2 0 548 LOCK TAB 021 901 WASHER 022 536 CONTACT SHELL (1/3) 022 537 MAIN ARCING CONTACT 022 539 SLIDE CONTACT HOLDER 022 540 WASHER 022 545 AUXILIARY CONTACT 022 546 PROTECTIVE SPARK GAP RIGHT P A R T 0 2 2 547 P R O T E C T I V E SPARK G A P L E F T P A R T 022 548 LOCK TAB 022 549 T U B U L A R SPACER 055 440 WASHER 450 362 H E X H E A D SCREW M 6 x 1 2 450 356 H E X H E A D SCREW M 6 x 1 6 451 076 RECESSS H E A D SCREW W I T H N U T M 6 x 1 6 550 669 PRESSURE S P R I N G 5 6 4 112 WASHER 546 113 WASHER Diverter switch D 21000 — Stationary contact system Parts designation MR" REINHAUSEN.ARIK On-load tap changer type D Parts of diverter switch unit D 21 000 894 418  022536 ©) SD © MR m a n Onoad a p change type D Parts of diverter switch u n i t D 2 1000 o a aro I PARTS-NO. DESIGNATION PARTS-NO. DESIGNATION 001 105 B R A I D L E A D P L A T E PREASSEMBLED 0 2 2 461 LOCK TAB 001 510 M O V A B L E SHUNT CONTACT COMPLETE 024 279 LOCK TAB 001 513 C U R R E N T STRIPS 031 712 LOCK TAB 001 514 C E N T E R B O L T PREASSEMBLED 0 3 2 002 CONTACT LEVER 001 523 C U R R E N T STRIP COMPLETE 261 601 SPRING I N S U L A T O R 001 526 MAIN ARCING CONTACT 410 626 RIVET WITH BUTTONHEAD 001 528 T A K E - O F F B R A I D PREASSEMBLED 4 2 0 657 HEX HEAD NUT M8 001 831 C O N T A C T T E N S I L E SPRING 420 704 DISC 0 0 1 632 BUMPER STOP PREASSEMBLED 450 335 H E X H E A D SCREW M 5 x 20 012 594 O U T P U T C O N T A C T ( D I 8 0 0 , D I 1200) 450 351 H E X H E A D SCREW M 6 x 1 0 020 643 D I V E R T E R SWITCH B O T T O M B E A R I N G 450 352 H E X H E A D SCREW M 6 x 1 2 020 645 OUTPUT CONTACT PLATE 4 5 0 358 H E X H E A D SCREW M 6 x 20 020 647 CENTER BOLT INSULATING BUSHING 4 5 0 361 H E X H E A D SCREW M 6 x 2 5 020 648 OUTPUT CONTACT 450 677 RECESS H E A D SCREW M 6 x 2 5 020 649 I N S U L A T I N G WASHER 450 1 7 0 BOLT M3 x8 020 668 SPACING R I N G 451 237 HEX HEAD NUT M5 020670 BRIDGE 451 238 HEX HEAD NUT M6 020671 LOCK TAB 451 241 HEX HEAD NUT M12 020 680 D I V E R T E R SWITCH D R I V E S H A F T 451 328 DISC 020 681 LOCK RING 451 478 SPLINT 020 682 LOCK RING 4 5 1 686 RIVET WITH BUTTONHEAD 020 686 LEVER BOLT 452 031 GROOVED BALL BEARING 0 2 0 741 LOCK TAB 4 5 2 052 GROOVED BALL BEARING 022 304 RIVET PIN 4 5 2 204 CIRCLIP LOCK RING 022 392 D I V E R T E R SWITCH B O T T O M B E A R I N G 453 255 H E X H E A D SCREW M 5 x 1 6 ( D I 8 0 0 , D I 1200) 550 1 1 4 PRESSURE SPRING 022 405 I N N E R PRESSING L E V E R 550 184 F L A T S H A P E D SPRING 022 406 O U T E R PRESSING L E V E R 550 397 WASHER 022 4 1 0 RIVET PLATE 550 871 PRESSURE SPRING 022 412 SHUNT CONTACT ROLLER 022 413 BUSHING 022 414 TUBULAR RIVET 022 415 SPACER 022 416 SUPPORTING T U B E 022 417 DISC 022 418 Disc 022 419 Disc 022 420 BEARING CURRENT TAKE-OFF RING 022 421 CURRENT TAKE-OFF RING 022 422 DISC 022 423 CENTER B O L T 022 424 DRIVE STAR BOTTOM 022 426 D R I V E S T A R TOP 022 427 CONTACT CARRIER > 022 428 CONTACT CARRIER 022 429 CONTACT CARRIER TMOO® 022 430 CONTACT CARRIER 022 431 CONTACT CARRIER 022 432 CONTACT CARRIER 022 433 8OTTOM SLIDE 022 4 3 4 TOP S L I D E 022 435 BOLT 0 2 2 439 TUBE 022 440 CONTACT HOLDER 022 443 TUBULAR RIVET 022 448 LEVER 022 451 LEVER BOLTS LONG 022 452 LEVER BOLTS SHORT 022 453 BOLT 022 454 INSULATING GUIDE PLATE 022 455 LOCK TAB 022 458 LOWER I N S U L A T I N G G U I D E P L A T E 0 2 2 459 CONNECTOR 022 460 BRAID LEAD PLATE Diverter switch D 0466 — Movable contact system MRssilae™ MASCHINENFABRIK REINNAUSEN On-load tap changer type D Parts of diverter switch unit D 0466 Parts designation 894 421 1  (21310) Pr 10 20008 — 03ers _ — [3 Ld 022084 °o, a. Pu wn - ‘wn > [210 ) bedi sum [en < 022¢8m 020870 Cd o 0208 pn wom J. sua one wise ann point — Pp 01am — 21501 Gira ain [™ 90007 022417 022418 00751 4 he id Eo oan ™~ 022408 o e saa ruotrare) 022012 } os, a. Ri 0224 osx 022414 pd wie — Sv. 451470 —— a — TN want I “wie > ses () ama MASCHINENFABRIK M REINHAUSEN On-load tap changer type D 894 421 EE Parts of diverter switch unit D 0466 |  PARTS-NO. DESIGNATION 0 0 1 097 S E P A R A T I N G F L A N G E PREASSEMBLED 0 0 1 506 A U X I L I A R Y A R C I N G C O N T A C T PREASSEMBLED 012 665 S L I D E C O N T A C T PREASSEMBLED 012 666 S L I D E C O N T A C T PREASSEMBLED ( D I 8 0 0 , D I 1200) 0 2 0 548 LOCK TAB : 020 629 R I V E T DISC 020 632 I N N E R PRESSPAN S H E E T 020 634 DISC 021 819 TUBULAR RIVET 021 901 WASHER 022 292 C O N T A C T CONNECTOR 022 296 C O N T A C T CONNECTOR 022 357 CONTACT CYLINDER 022 358 CONTACT CYLINDER 022 359 SHUNT CONTACT RAIL LEFT 022 360 SHUNT CONTACT RAIL RIGHT 022 361 PRESSPAN S H E E T 022 362 SHUNT CONTACT RAIL LEFT 022 363 SHUNT CONTACT RAIL RIGHT 022 364 PRESSPAN S H E E T 022 367 SLIDE CONTACT HOLDER LEFT 022 368 SLIDE CONTACT HODER RIGHT 022 369 PRESSPAN S H E E T 022 370 WASHER 022 371 BUSHING 022 373 SHUNT CONTACT STATIONARY LONG 022 374 SHUNT CONTACT STATIONARY SHORT 022 375 LOCK TAB 022 376 LOCK TAB 022 377 LOCK TAB 022 378 INSULATING RAIL 022 380 WASHER 022 381 LOCK TAB 022 382 BUSHING 022 383 ARCING CHUTE 022 384 ARCING CHUTE LEFT 022 385 ARCING CHUTE RIGHT 022 386 PROTECTIVE SPARK GAP L E F T INTERIOR PART 022 387 PROTECTIVE SPARK GAP RIGHT INTERIOR PART 0 2 2 389 O U T E R PRESSPAN S H E E T 022 390 INSULATING RAIL 022 462 T R A N S I T I O N RESISTOR C O N N E C T I N G B U S H I N G 042 847 M A I N ARCING CONTACTS 044 245 M A I N ARCING CONTACTS 420 703 DISC 450 062 H E X H E A D SCREW M 6 x 2 8 450 351 H E X H E A D SCREW M 6 x 1 0 450 355 H E X H E A D SCREW M 6 x 1 6 450 363 H E X H E A D SCREW M 6 x 30 451 074 RECESS H E A D S C R E W W I T H N U T M S x 2 0 451 088 RECESS H E A D SCREW W I T H N U T M 6 x 3 0 451 230 HEX HEAD NUT Mé 451 238 HEX HEAD NUT M6 452 206 CIRCLIP LOCK R I N G 650671 PRESSURE SPRING Diverter switch D 0466 — stationary contact system MASCHINENFABRIK Parts designation M REINHAUSEN On-load tap changer type D 894 420 Parts o f diverter switch u n i t D 0466 I MR On-load tap changer type D Parts of diverter switch unit D 0466 894 420 M MASCHINENFABRIK REINHAUSEN Maschinentabrik ReinhausenGmbH Postfach 12 03 60 W-8400 Regensburg 12 Telefon (09 41) 40 9 0 0 Telefax (09 41) 4 42 03 Telex 6 5 881