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INSTRUCTIONS 

OVERCURRENT  RELAYS 

TYPES 

IFC51AD 

and 

51 

BO 

IFC53AD 

and 

5380 

IFC77AD 

and 

7780 

GEK-49827A 

INSERT  BOOKLET  GEK-45375 

GENERAL 

f) 

ELECTRIC 

www 

. ElectricalPartManuals 

. com 

Summary of Contents for IFC51AD

Page 1: ...INSTRUCTIONS OVERCURRENT RELAYS TYPES IFC51AD and 51 BO IFC53AD and 5380 IFC77AD and 7780 GEK 49827A INSERT BOOKLET GEK 45375 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 s c o m ...

Page 2: ...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 3: ...ts to those covered by the APPLICATION section in the included instructions GEK 45375 Note that the second contact on the seal in unit and the instantaneous overcurrent unit when present is intended for local alarm and or remote indication as shown on the typical external connections in Figure 3 of these instructions All other sections of the included book GEK 45375 also apply to these relays Thes...

Page 4: ...r l 2 SHORT FINGER GEK 49827 0 5 6 T SI I r 12 b 1 1 FIG 1 0208A8514 ll INTERNAL CONNECTIONS FOR RELAY TYPES IFC51AD IFC53AD AND IFC77AD FRONT VIEW 4 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 5: ... LINK TO H FOR HIGH RANGE AND TO L OR LOW RANGE LINK SHOWN IN HIGH RANGE POSITION SHORT FINGER T SI INSt r Y r 12 14 11 13 FIG 2 0208A8515 l INTERNAL CONNECTIONS FOR RELAY TYPES IFC51BD IFC53BD AND IFC77BD FRONT VIEW 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: ...1 3 1 N 12I 1415 1 Sl t 5t 2 0 0 N T fj J 0 1SAIMEAS I Pt 1 SEI I v J 1 ALARM JR REMOTE INDICATION 52 TC PHASES 2 e 3 AND NEUTRAL SAME AS PHA E l FIG 3 0275Al903 0 EXTERNAL CONNECTIONS OF FOUR IFC RELAYS USED FOR MULTI PHASE AND PHASE TO GROUND FAULT PROTECTION OF A 3 PHASE CIRCUIT 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: ... FC 5 AO IFC 5 SD l FC 5 3AO I FC 53BD IFC 77AD Ft 77BD Revised since last issue GEK 49827 TABLE I IFC TOC SETTINGS TAPS AVAILABLE 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 MALVERN PA 19355 GENERAL ft ELECTRIC 6 91 1300 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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