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Undercurrent  and  Overcurrent  Relays  Type  lAC 

* 

115  VOLTS  RATEu  FRlVUlNLY 

lAC 

6 

Figure  5.  (K-6400302)  Type  IAC59A  and IAC59B  Relays,  Test  Connections 

(15 .. >1) 

�DRILL 

(2 HOLES) 

Figure  6.  {6209271-6)  Outline  and  Panel  Drilling  for  the  Type  IAC59A  Relay 

*Indicates  revision 

5 

www 

. ElectricalPartManuals 

. com 

Summary of Contents for IAC59A

Page 1: ...RUCTIONS UNDERCURRENT GEI 21903 F Supersedes GEI 21903 E Insert Booklet GEI 1753 AND OVERCURRENT RELAYS Types IACS9A IAC59B and IAC59C GENERAL f ELECTriC w w w E l e c t r i c a l P a r t M a n u a l...

Page 2: ...OU t C OihCU IIIII CI IIIUf tt I i UUUUO UOII IUD TO Til ULIII I 1 lJ i v 1 I _ __ i J l I j 1 i I 1 1 l l 1 PIICUTUI 0 CllllllliT TO CLDU U con cra IC IIMT ct t c t lllr ll TO CLOU I i H IJ 1 v A l v...

Page 3: ...or contact spread the following procedure is necessary Turning the spring adjusting ring as described under current setting of the included instructions affects primarily the current required to close...

Page 4: ...EAL IN ELEMENT 9 r 10 SHORT FINGER Figure 3 K 6400242 Type IAC59A and IAC59B Relays Internal Con nections Front View r2 OPERATING COIL f16 1 r 9 10 SHORT FINGr R Figure 4 K 6400432 Type IAC59C Relay I...

Page 5: ...RATEu FRlVUlNLY lAC 6 Figure 5 K 6400302 Type IAC59A and IAC59B Relays Test Connections 15 1 DRILL 2 HOLES Figure 6 6209271 6 Outline and Panel Drilling for the Type IAC59A Relay Indicates revision 5...

Page 6: ...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: ...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: ...GENERAL ELECTRIC COMPANY POWER SYSTEMS MANAGEMENT BUSINESS DEPT PHILADELPHIA PA 19142 GENERAL fJjELECTRIC 7 80 2 68 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 9: ...INSTRUCTIONS TIME OVERCURRENT RELAYS TYPES IAC51A IAC52A lAC51B lAC52B IAC51R GENERAL fl ELECTRIC 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 10: ...NTACT LEFT SEAL INUNIT STATIONARY CONTACT RIGHT SEAL IN MOVING CONTACT ASS EMBLY DISK AND SHAFT LOWER JEWEL SCREW MAIN MOVING SHAFT _ i MAIN A 8006996 Front View B 8006997 Rear View STATIONARY BRU SH...

Page 11: ...piral spring to give 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...

Page 12: ...2 _ b _ I _ f I I 1 I 1 _ b r r r I 4 I I l I I 1D _ _ _ 2D i _ 10 r I i 9 8 1 _ b 6 p It r 01 c 4 3 G r f _ f 2 r c r 1 0 I I G E c r t 30 40 o so 7o ao eo MULTlPLES OF RELAY TAP SETTING Fig 2 088880...

Page 13: ...18 15 12 9 6 1 Jv Iv II v I v 0 v Time Overcurrent Relays Type lAC GEH 1753 BURDENS Burdens for the standard coils are given in the following table These are calculated burdens at five amperes based o...

Page 14: ...I G h I CTOR I L 7 I __ _ ll l 1 1 I Fig 5 K6375668 l External Connections of Three Type IAC51A Relays used in Conjunction with Tripping Reac tors for Protection of aTThree Phase Circuit 6 A C BUS r i...

Page 15: ...rrent exceeding a predetermined value OPERATING CHARACTERISTICS The instantaneous element operates over a 4 to 1 range and has its calibration stamped on a scale OP IIATII IG COIL L TARG T STATIONARY...

Page 16: ...transformer 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 i...

Page 17: ...d as a part of a control panel will be shipped in cartons designed to rotect them against damage Immediately upon receipt of the relay an examination should be made for any damage sustained during shi...

Page 18: ...2 4 6 8 10 A C RIP UNIT INSTANT uu Fig 13 K 6209294 3 Internal Connections for the Type IAC51R Relay Front View SEAL IN UNIT Sl IN DUCTION 2 INDUCTION UNIT 6 SHORT FINGER Fig 14 K 6209662 5 Internal C...

Page 19: ...diagrams for 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...

Page 20: ...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 21: ...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 22: ...he factory 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 suffi...

Page 23: ...EW F IC _ B __ _ _ I I I 3 5 7 9 00000 _00000 2 4 6 8 10 PANEL Rl LING 5 111 FL SH MTC FIG A B SURFACE WTG CASE VIEW SHOWING ASSEMBLY OF HARDWARE FOR SURFACE WTC ON STEEL PANELS i DRILL 10 HOLES 5 4 P...

Page 24: ...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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