GE IAC60A Instructions Manual page 12

Time Overcurrent Relays Type IAC
GEH-1753
FUNCTION NUMBERS FOR USE
DEVICE
WITH ALL EXTERNAL DIAGRAMS
50
Instantaneous Unit
51
Overcurrent, Relay, Type IAC
51N Ground Overcurrent Relay, Type lAC
52
Power Circuit Breaker
SI
Seal-in Unit, with Target
TC Trip Coil
A
Auxiliary contact, closed when breaker
closes.
-
A C BUS
.li
. , · �
TRJPP!t.'
�ACTOR-
Fig. 5
(K6375668-l) External
Type IAC51A Relays used
Reactors for Protection
6
1
2
3
.ll: :l
.ll=l.
-
Connections of Three
in Conjunction with Tripping
of
aTThree-Phase Circuit.
A-C BUS
Fig. 4
(K-6375667-2) External Connections of Three
Type IAC51A Relays used for Phase - to-Phase and
Ground Overcurrent Portection of a 3-Phase Circuit.
A� BUS
Fig. 6 (K-6375669-6) E
IACSlR Relays used for 3-Phase C ir c
Type
'·'
1-1
n l
x e r
t a Connections of Three
i
u t Protection.