Table of Contents
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CONTENTS
Introduction
Constructional
Diff
erences.
.
Breaker
Ratings
Drawout
Breaker Interchangeability
Breaker Maintenance
.
.
Precautions
Manual Handle Adjustment
ContactMaintenance.
. .
.
Contact
Adjustment:
AKR.3O, -30H, AKRU-30
.
AKR-50, -50H, AKRU-50
.
AKRT-50
Contact Replacement:
AKR-30, -30H, AKRU-30
.
AKR-50, -50H, AKRU-50, AKRT-50.
.
.
.
6
o
6
o
7
I
8
10
10
FusedBreakersAKRu-30,
-50
......
10
FuseSizesandMountinC....
10
Special 2500A
Fuse.
72
Open
Fuse Lockout
Device
12
Type
SST
Overcurrent
Trip
Device
t4
Components
14
TripCharacteristies
......16
Troubleshooting.
77
SST
Test
Set
TAK-TS1.
. .
.
18
False Tripping (Ground
Fault)
19
Replacement
of Current
Sensors
19
Flux
Shift
Trip
Device
20
Cabling
Diagrams.
22
Ground
Fault Defeat
Cable
23
Type
ECS
Overcurrent
Trip
Device
24
Components
24
TripCharacteristics
.,,,..25
Cabling
Diagram
26
ECS
&
SST
Time-Current
Curves
27
fhese inslruclions
do
nol purporl
lo
cover
oll
detoils
or
voriations
in
eguipmenl nor
to
provide
for
every possrble
conlngency
lo be
mel
in
conneclion
with instollolion,
operolion
or
moinlenonce. Should
further
informolion
be
desired
or
should
porliculor
problems
orue
whrch
ore
nol
covered
sufticienlly
for
lhe
purchoser's
purposes,
lhe
moller should
6e
referred
lo
lhe
Generol Eleclric Compony.
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Do you have a question about the AKR Series and is the answer not in the manual?
Questions and answers
trying to remove the breaker using a socket to the all thread counterclockwise and the all thread comes out indicating the jam nuts are absent. is there another way to remove the breaker.
@george A dupre
To remove a GE AKR Series breaker when the all-thread comes out and the jam nuts are absent, follow these steps:
1. Remove the sensor stud if needed to gain working clearance. This can be done by removing its four holding bolts from the rear of the breaker (refer to Fig. 20 in the manual).
2. Disconnect the neutral sensor and verify proper connection and continuity, ensuring it matches the phase sensors in rating and tap setting.
3. Lift out the sensor and its loads.
4. Tap the terminal board to disconnect it.
These steps allow removal of the breaker even without the jam nuts.
This answer is automatically generated