GE AK-50 Series User Manual

CONTENTS
3
INTRODUCTION
3
OPERATION
MANUAL
CLOSING
.
.
.
MANUAL
MAINTENANCE
CLOSING
OF
ELECTRICAL
BREAKERS
ELECTRICAL
CLOSING
.
QUICK
CLOSE
FOR
ELECTRICAL
BREAKERS
ELECTRICAL
TRIPPING
.
.
.
3
4
4
4
5
5
MAINTENANCE
INSERTING
SAFETY
PIN
-
AK
-
50
,
AK
-
75
AND
AK
-
100
INSPECTION
TROUBLE
SHOOTING
LUBRICATION
SEPARATION
OF
FRONT
AND
REAR
FRAMES
5
5
6
7
7
7
BASIC
BREAKER
COMPONENTS
ARC
QUENCHERS
POLE
UNIT
ASSEMBLY
OPERATING
MECHANISMS
QUICK
CLOSE
BREAKER
ADJUSTMENTS
AUXILIARY
SWITCH
7
8
13
16
11
23
ELECTRICAL
CLOSING
DEVICES
AND
CONTROLS
CLOSING
SWITCH
CUT
-
OFF
SWITCHES
CONTROL
RELAY
23
23
23
23
PROTECTIVE
DEVICES
STATIC
TIME
DELAY
UNDERVOLTAGE
TRnPING
DEVICE
INSTANTANEOUS
UNDER
VOLTAGE
TRIPPING
DEVICE
.
.
.
.
UNDERVOLTAGE
LOCKOUT
DEVICE
.
.
.
.
.
.
.
DIRECT
-
ACTING
TRIPPING
DEVICE
-
EC
-
1
B
SERIES
OVERCURRENT
TRIPPING
DEVICE
EC
-
1
SERIES
OVERCURRENT
TRIPPING
DEVICE
EC
-
2
/
EC
-
2
A
.
.
.
REVERSE
CURRENT
TRIPPING
DEVICE
(
AK
-
50
ONLY
)
POWER
SENSOR
TRIP
.
.
.
.
SELECTIVE
TRIPPING
23
25
25
26
29
31
33
33
39
42
BREAKER
ACCESSORIES
PRIMARY
DISCONNECTS
SECONDARY
DISCONNECTS
DRAWOUT
MECHANISMS
SHUNT
TRIPPING
DEVICE
BELL
ALARM
AND
LOCKOUT
DEVICE
OPEN
FUSE
LOCKOUT
DEVICE
42
42
43
44
44
45
47
MISCELLANEOUS
TOOLS
RENEWAL
’
PARTS
47
47
These
instructions
do
not
purport
to
cover
all
details
or
variations
in
equipment
nor
to
provide
for
every
possible
contingency
to
be
met
in
connection
with
installation
,
operation
or
maintenance
.
Should
further
information
be
desired
or
should
particular
problems
arise
which
are
not
covered
sufficiently
for
the
purchaser
’
s
purposes
,
the
matter
should
be
referred
to
the
General
Electric
Company
.
Courtesy of NationalSwitchgear.com

GE AK-50 Series Specifications

General

Brand	GE
Model	AK-50 Series
Category	Circuit breakers
Language	English