GE AKR-30 Series Maintenance Manual page 63

A BREAKER MOUNTED - R IGHT SIDE
B EQU I PMENT MOUNTED
FIG. 86 N E UTRAL SENSOR SECON DARY
-
DISCONNECT
Since the neutral sensor is mounted separately
from the breaker, a d i sconnect means is requi red to
con nect its output to the breaker. Fig. 86 shows the
breaker and equi pment mounted 4th wire secondary
d i sconnect used with the M icroVersaTrip system.
1 2.2.1
REPLACEM ENT OF CU RRENT
SENSO RS
Referring to Fig. 87, replacement of MicroVersaTrip cur­
rent sensors is accomplished as follows:
a) Disconnect the programmer harness from the ter­
minal board, removing cable ties as necessary.
b) At the rear fo the breaker, remove the two Allen head
screws to separate the stud connector from the contact
pivot block.
c) Loosen the clamping bolt and remove the stud con­
nector. Uft out the sensor and its tap terminal board.
The sensor may prevented from slipping off the sen­
be
sor stud by adjacent accessories. If this exists, the sensor
stud must be removed from the breaker base. The stud
assembly is secured to the base with four bolts which are
accessible from the rear of the breaker.
d) When replacing the stud connector, tighten the Allen
±
head screw to 2SO 10 in-lbs. Tighten the clamping bolt
as follows:
AKR 30130H 1 20
AKR 50/SOH 470
AKRT 50/SOH 470
e) When replacing the programmer harness to the
phase sensors verify that the winding polarity is maintain­
ed, white wire with ring terminal to COMMON terminal
(right hand terminal, see Fig. 83).
±
1 0 in-lbs
±
10 in-lbs
±
10 in-lbs
63