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INSTRUCTIONS 

TIME 

GEI-19957G 

Supersedes  GEI-19957F 

Insert  Booklet  GEH-1753 

OVER CURRENT  RELAYS 

Types 

IAC60A  IAC60J 

IAC60B  IAC61A 

GENERAL 

fj 

ELECTRIC 

www 

. ElectricalPartManuals 

. com 

Summary of Contents for IAC60A

Page 1: ...INSTRUCTIONS TIME GEI 19957G Supersedes GEI 19957F Insert Booklet GEH 1753 OVERCURRENT RELAYS Types IAC60A IAC60J IAC60B IAC61A GENERAL fjELECTRIC w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 2: ...DIRECTION OF TORQUE TrllW I r nli rrTtnwo iz l K 6154168 5 Typical External Connections For Three T e IAC60A Relays Used In Conjunction With One TYPe CAP15A And Two Type HGA Relays For Direc tional O...

Page 3: ...1 r l t rr1 1r1 110 INSTUTANEOUS l Hli TS K 6400341 5 Internal Connections For Tyre IAC60J Relay Front View Ttme OvercurrentRelays Type lAC GEI 19957 1 PUND SHADING 1 COILS SEAL IN I UN I T I I N N D...

Page 4: ...1 125 OR STUD r 504MM 19 B75 _ _ i 18 3 slg s 4 SURFACE MTG Y OUTLINE lo 32 X MT 5t 4M 144MM SCREWS 6 z1s 1s s7 t 19 MI 7 781 L CUT I 9SMM 5 502 L 1 I DRILc OUT b l I I 252MM 9 937 504 19 8 p CASE MM...

Page 5: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 6: ...GENERAL ELECTRIC COMPANY POWER SYSTEMS MANAGEMENT BUSINESS DEPT PHILADELPHIA PA 19142 GENERAL ELECTRIC 3 80 2 65 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 7: ...INSTRUCTIONS TIME OVERCURRENT RELAYS TYPES IAC51A IAC52A IAC51B IAC52B IAC51R GENERAL fjELECTRIC GEH 1753J w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 8: ...AL IN UNIT STATIONARY CONTACT LEFT SEAL IN UNIT STATIONARY CONTACT RIGHT SEAL IN MOVING CONTACT ASSEMBL t DISK AND SHAFT l__ A 6006996 Front VieW l OWER JEWEL SCREW DRAG IE MAGNET B 8006997 Rear Vie l...

Page 9: ...ive the proper contact closing current and its motion is retarded by a permanent magnet acting on the disk to give the correct time delay There is a seal in unit mounted on the front to the left of th...

Page 10: ..._ r I t t r r r k l _ t r _ r r r I _ r I 4 I I l I I 10 r r 20 1 10 r r 1 9 1 t 1 8 1 r lg tJt I c I 4 r t r 3 G f r r 2 r c r 0 t I r G E t r 1 30 40 50 80 70 80 110 MULTlPLES OF RELAY TAP SETTING...

Page 11: ...Iv II v I v 0 Time Overcurrent Relays Type IAC GEH 1753 BURDENS Burdens for the standard coils are given in the following table These are calculated burdens at five amperes based on burden of minimum...

Page 12: ...l TRJPP t ACTOR i f q T ll l 1 t Fig 5 K6375668 l External Connections of Three Type IAC51A Relays used in Conjunction with Tripping Reactors for Protection of aTThree Phase Circuit 6 A C BUS ill z 3...

Page 13: ...ng a predetermined value OPERATING CHARACTERISTICS The instantaneous element operates over a 4 to 1 range and has its calibration stamped on a scale OP IIATING COIL 11 1 1 TAAGe T STATIONARY CONTACTS...

Page 14: ...ormer Normally most of the flux generated by the main REA coil passes through the upper limb of the magnetic structure and holds the armature firmly against this limb When the contacts of the inductio...

Page 15: ...ed as a part of a control panel will be shipped in cartons designed to yrotect them against damage Immediately upon receipt of the relay an examination should be made for any damage sustained during s...

Page 16: ...A C RIP UNIT INSTANT uu Fig 13 K 6209294 3 Internal Connections for the Type IAC51R Relay Front View SEAL IN UNIT Sl INDUCTION 2 INDUCTION UNIT 6 SHORT FINGER Fig 14 K 6209662 5 Internal Connections f...

Page 17: ...the various relay types are shown in Fig 11 to 17 inclusive Typical wiring diagrams are given in Fig 4 to 6 inclusive One of the mounting studs or screws should be permanently grounded by a conductor...

Page 18: ...The primary adjustment for the time of opera tion of the unit is made by means of the time dial However further adjustment is obtained by moving the permanent magnet along its supporting shelf moving...

Page 19: ...edge of the stationary contact sup porting post 2 ARMATURE ADJUSTMENT Loosen the two screws which hold the armature assembly bracket to the bottom of the frame Slide the bracket in or out whichever i...

Page 20: ...ctory PERIODIC TESTING An operation test and inspection of the relay at least once every six months are recommended Test connections are shown in Fig 18 RENEWAL PARTS It is recommended that sufficient...

Page 21: ...UIIBER INC FRONT VIEW FIG 6 I i l 3 5 7 9 100000 _00000 2 6 B 10 PANEL Rl Lll NG SENI Fl SH MTG FIG A 8 SURFACE WTG VIEW SHOWING ASSEMBLY OF HARDWARE FOR SURFACE WTG ON STEEl PANELS DR Ill 2 HOLES DRI...

Page 22: ...GE Power Management 215 Anderson Avenue Markham Ontario Canada L6E 183 Tel 905 294 6222 Fax 905 201 2098 www ge com indsys pm w w w E l e c t r i c a l P a r t M a n u a l s c o m...

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