Breaker Racking Mechanism; Remote Packing Operator; Primary Disconnects - GE POWER/VAC 4.16 Instructions Manual

accessory with each Power / Vac * switchgear order
( Fig
.
10
)
.
This accessory device is used
to
elevate the
breaker from the
floor or working platform to the level of the tracks in the
switchgear cubicle
.
Docking of the lifting device rails
to the
switchgear tracks is provided for maximum safety
.
( See
OPERATION
REMOVAL , PAGE 36 OR GEK 90214
)
.
BREAKER INSTALLATION AND
BREAKER RACKING MECHANISM
When installed in the switchgear
cubicle ,
the removable
element is supported by two horizontal steel tracks
,
one on
each side of the cubicle
.
The racking mechanism moves the
breaker element along these tracks between the connected
and test positions
.
This mechanism consists of heavy
-
duty
steel jack
screws which carry
nuts that engage the sides of the
removable element
.
The racking mechanism may be man
-
ually operated with the racking handle which is furnished
with each equipment
.
The breaker cannot be moved between the connected and
test /
disconnect positions unless it has been tripped
.
The
breaker cannot be closed unless it is in the connected or
test /
disconnect position
.
For a detailed explanation of the racking mechanism
refer to description under OPERATION
—
CLOSED
DOOR BREAKER RACKING , PAGE 39
.
1
—
1200 AMP
REMOTE RACKING OPERATOR
The optional electrically operated racking device ( see Fig
.
11 )
provides a convenient means for racking a breaker be
-
tween the connected and test positions
from a
remote loca
-
tion
.
It is easily mounted to the breaker unit front door and
is designed for quick transfer between units .
The remote racking operator is furnished in two operat
-
ing voltage versions
.
The 115 V AC
,
50 / 60 hertz model has
a
four foot electrical cord with standard three prong plug
to
fit a grounded receptacle
or extension cord .
The 230 VAC
,
50
/
60 hertz model has a three wire four foot cord
to
which
the purchaser applies his standard plug
.
The remote
racking operator is provided with
a
two posi
-
tion directional switch
,
an " On
-
Off ' circuit breaker and a
push button control box attached with a
30 foot extension
cord
.
2
—
2000 AMP
Instructions for the remote racking operator are found in
GEK 86130 ( 115 VAC ) & GEK 86131 ( 230 VAC )
.
PRIMARY DISCONNECTS
The
1200
and
2000 ampere primary disconnects consist of
two
rows of silver
-
plated copper fingers mounted on either
side of the circuit breaker studs
.
These fingers are held in
place with a spider which positions the fingers and fastens
them to the breaker
.
Wipe pressure is obtained by tension
springs between the rows of fingers which pull them
to
-
gether
.
When the circuit breaker is connected to the metal
-
3
_
3000 AMP
Primary Disconnects
18