ABB 511 Series Instructions Manual

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# \ IPW
IB 7.2
.
1.7
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1
Issue C
Instructions
Overcurrent Relays
CATALOG SERIES 223 /
423
DRAWOUT SEMI - FLUSH MOUNTED
SINGLE PHASE , TWO PHASE ,
AND THREE - PHASE RELAYS
INVERSE
VERY INVERSE
EXTREMELY INVERSE
DEFINITE
TIME
.
TYPE 511
TYPE 51 Y
TYPE
51
E
TYPE
51 D
SHORT TIME
LONG TIME
LONG TIME INVERSE
.
TYPE
51
S
.
.
TYPE
51 L
TYPE
51 IM
LONG TIME VERY INVERSE
....
TYPE
51 YM
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SINGLE PHASE
FOR RESIDUAL GROUND PROTECTION
THREE PHASE
FOR PHASE PROTECTION