ITE 7850 Series Instruction Bulletin Download Page 4 | Manualshive

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Courtesy of NationalSwitchgear.com

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Summary of Contents for 7850 Series

Page 1: ...UARY 1975 MM Mgg i mm USE SERIES 7850 High Voltage Motor Starter 4 3 V vs sr s Vrf fer i V INSTALLATION OPERATION MAINTENANCE l T E IMPERIAL CORPORATION WESTMINSTER OPERATION WESTMINSTER MARYLAND 21157 Courtesy of NationalSwitchgear com ...

Page 2: ...ALLATION 4 RECEIVING STORAGE HANDLING UNCRATING GENERAL PRE INSTALLATION INSPECTION POSITIONING ELECTRICAL CONNECTIONS ENCLOSURE DIMENSIONS FINAL CHECKOUT AND INSTALLATION 7 8 9 S r f 10 OPERATION WIRING SCHEMATIC 11 ROUTINE INSPECTION AND MAINTENANCE TROUBLE SHOOTING 12 PARTS LISTS CABINET INTERNAL COMPONENTS CONTACTOR EXPLODED VIEW FUSE AND ARC CHUTE BARRIERS 13 14 15 17 18 Courtesy of NationalS...

Page 3: ...ated at 400 A allows generous wiring area further reducing installation cost This same 400A controller is provided for 200A applications provid ing increased contact life as well as unmatched flexibility When applied to the 400A application with the proper fuses the controller s reduced size provides generous wiring This unique design allows greater flexibility in B Handle and Contactor Interlock ...

Page 4: ...latch assembly upward and manually rolling the controller into the desired position Reference Figure No 4 Ambient compensated thermal overload relays with exter nal hand reset are provided as standard offering accurate and reliable overload protection Special switchboard or magnetic type overcurrent protection is available D Switch Electrical Interlock The normally open electrical interlock locate...

Page 5: ...lable covering a broad range of customer requirements Features Basic welded starter modules 29 wide by 30 high by 29 deep All enclosures use this basic module pro viding great flexibility and interchangeability See page 9 for enclosure variations Add on type modular separate low voltage compart ments with individual doors Ventilated openings in starter module doors between units and at the top of ...

Page 6: ...Phase 80 000 Amperes RMS Asymmetrical at 2400 Volts 70 000 Amperes RMS Asymmetrical at 2750 Volts A240R 2R A240R 3R A24QR 4R A240R 6R A240R 9R A240R 12R 2R 70A 3R 100A 130A 170A 200A 230A 4R 6R 9R 12R Three Phase 210 MVA Symmetrical at 2400 Volts 210 MVA Symmetrical at 2750 Volts A240R 18R 18R 390A 24R A240R 24R 450A 4800 VOLTS Single Phase 100 000 Amperes RMS Asymmetrical at 4800 Volts 90 000 Amp...

Page 7: ... 60 sanu 40 30 20 10 M 9 9 SDKE5 0 i SfRSfr 7 7 4 6 S2ESS 6 5 mm 4 4 ESSIE 3 i C 2 i g Q 7 V o _v A U f r ui v V V i B KIN 9 2 9 uaair t r J 4 ISIHKBfi isaB11z ssamtssm v in 7 7 EHBBB 2 6 4 S5E0EI ausBiie 351 4 4 ISIH i A 4 3 Jr S 31 4 4 a tffgts a y 4 4 y 1 ai 09 49 BBIE A w r WW V r 4 40 assassin i 1 C fT 47 47 3SSEC 46 44 SSESE 45 4 3EE1E 44 43 02 J K C C 01 41 CURRENT IN AMPERES Courtesy of Na...

Page 8: ... i3 i V v 1f r 7 r t tn a t w i ikisi SI C 1 ii S S T S i v fc i 4 4 Vi ui ti ei i i 1 t 1 r t v I J vI r 3i i i G t w l 1 3 y v j 7 J v v 2 in 2 r s s illli J r r vlM a SE 41 s5tSSIiSS8iaalil aifilt8 i u 1K 11 ua A tvr j Bii t sa ins m n e tr3rc F7n JK JP tr i 1 rsrzzx K o is ft aitt v t eniri saii r s tv f U S162CS E RSS mBJ tiiSiSa ESSSSRBBBBC3SSSSSSSHl aBPW X i 3 8B S3S a B E S B1 6 2 W l E S ...

Page 9: ...TION 1 With the 7850 PLD lift mechanism or other lifting means in position defeat the mechanical latch mechanism as described in section C page 2 Roll the contactor out of the cabinet and follow steps 2 8 below HANDLING All Series 7850 Starters should be handled with utmost care to avoid possible damage due to severe shock Ship ping skids plastic covering and open crating should be left intact as ...

Page 10: ...Remove bolts No A Figure 10 then remove barriers No B Line cables coming into the line compartment of the enclosure are connected to terminals No C After connection is made replace isolation barriers No B Reference page 9 for basic Each unit is provided with mounting channels that may either be set on the floor or embedded in it Although these units are free standing and self supporting they shoul...

Page 11: ...i LIFTING ANGLES 40 29 29 h v 11 7 45 30 30 i 30 45 l 90 90 15 WALL MOUNTED 0 30 30 90 15 45 30 30 30 THREE HIGH TWO HIGH WIDE ONE HIGH TWO HIGH NARROW FRONT VIEW ALL MTG HOLES 3 4 DIA TYPICAL B A A B A B A r c c r c L 3 A D D D D F E F F F E E MOUNTING LOCATIONS Dimensions in Inches F D E B C A Unit 2 1 4 24 1 4 2 3 B 17 1 4 20 7 8 3 9 16 V2 2 1 4 20 7 8 24 1 4 2 3 8 3 9 16 17 1 4 V3 2 1 4 24 1 4...

Page 12: ...y mate fully and evenly across the full surface of the contacts Return the arc chutes to their normal position Check that the arc chutes are fully en gaged Reference Figure No 12 While the unit is energized depress the anti single phasing bar the contactor should de energize Re energize the unit and push the contactor back into the enclosure to its stop position The contactor should de energize du...

Page 13: ... doors and latch the two 2 1 4 turn latches The operating handle may now be moved to the On position moving the contactor into the engaged position Complete electrical sequence of a typical starter can be traced on the schematic diagram Figure No 13 Figure 12 Engagement of Arc Chutes S3 r uO aw I I I L OZO ICT n l o I Si bantermm pJ IJ u taarjhMS U S JL HI P A iUUUUUUUUUUUlA q I li y Tt LI tmaftaf...

Page 14: ... Defective magnet Check coil or rectifier Low control voltage Check line voltage Contacts overheat Loose connection Tighten connections Contacts not making firmly Check for weak or deformed contact spring replace as required Dirt or foreign matter on contact surfaces Clean contacts Contact material consumed Replace contacts Control circuit or main fuses blown Inspect fuses replace if blown Contact...

Page 15: ...5000 Handle Assembly 1 Per Switch No 170019600 Over Center Mechanism Assembly 1 Per Switch Figure 14 No 170019100 Rack Assembly 1 Per Switch 1 11 No 160044900 Shutter and Ground Assembly 1 Per Switch No 150115000 Stab Assembly Transformer to Bus Bar 2 Per Switch Figure 16 w 7 Courtesy of NationalSwitchgear com ...

Page 16: ...top 2 Per Switch No 150121000 Auxiliary Contact Assembly 1 Per Switch Figure 17 i t No 150136900 Current Transformer Assembly 3 Per Switch Optional Figure 18 No 150130900 Walking Beam Assembly 1 Per Switch No 170019000 Chassis Assembly 1 Per Switch y Figure 19 Courtesy of NationalSwitchgear com ...

Page 17: ...him Washer Main Shaft Bearing Main Shaft Contact Spring Separable Contact Finger Assembly Arc Horn Support Assembly Flexible Shunt Assembly _Movable Contact Assembly Fuseblocfc Assembly Control Fuse Insulator Fuseblocfc Primary Main Shaft Barrier Service Handle Left Hand Slide Right Hand Slide Fuse Clip Fuse Clip Support Spring Fuse End Stop Guide Main Fuse Arc Chute Assembly Lever Assembly Namepl...

Page 18: ...r Carriage Slide Latch Stop Control Fuse 3 8 x 1 1 4 Socket Hd Shoulder Scr No 6 32 x 1 125 Rd Hd SMS No 6 32 Hex Nut No 6 Lock Washer No 6 Flat Washer No 10 32 x 1 2 Pan Hd SMS No 10 32 x 3 8 Hex Indented W W TT No 10 Split Lockwasher No 10 Flat Washer No 10 32 Steel Hex Nut 1 4 20 x 3 8 Phil Pan Hd TT Screw 1 4 20 x 1 Hex Hd SCS 1 4 20 x 5 8 Hex Hd SCS 1 4 20 x 3 4 Hex Hd SCS 1 4 20 x 1 1 4 Hex ...

Page 19: ...AGE STARTERS Figure 21 Fuse and Arc Chute Barriers r Fig Index Description Part Number No Typical Controller Fuse Barriers 14 required Center Switch Barrier 4 required 21 1 150104800 150104700 21 2 21 3 t e v Sr Si V r si t J ji r Courtesy of NationalSwitchgear com ...

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