GE Industrial Solutions Remote Racking Operator: Low Voltage EntelliGuard G Circuit Breakers User Manual

Page 4

Advertising
background image

4

Description and Operation

Section 4.1 Description

Remote Racking Operator – 400-6400A
frame size Entelliguard

G breakers

The remote racking operator consists of a drive
train, control box with switches, power chord
and connecting chord. The drive train is made of
a gear head motor (1, fig. 4). The hand held
control box consists of an (OFF/ON) toggle switch
(2, fig. 5). A forward, stop, reverse (FWD STOP
REV) three position toggle switch (3, fig. 5). A
(RUN), momentary push button (4, fig. 5). And a
two position torque selector toggle switch
labeled (BREAKER FRAME) with choices Frame 1/
2, left position and Frame 3, right position.
(5, fig. 5). After plugging in the grounded 3-
pronged power chord to a 115V AC outlet, the
OFF/ON toggle can be switched to ON which
powers up the control box. Depending on the
breaker frame size being racked in or out, toggle
this switch to the appropriate position. Refer to
the Breaker Envelope Frame Size chart on page 5
to determine the envelope frame size of the
breaker you are racking. Next step is to
determine which intended direction the breaker
will go. If breaker is in the DISCONNECTED
position then the intended direction would be
forward (FWD) to rack to the connected position.
If the breaker is in the CONNECTED position then
the intended direction is reverse (REV). Existing
breaker position is confirmed by the position flag
in the lower left location of the breaker cassette
facia plate located below the breaker. There is a

window indicating the breakers position. Before
Racking breakers in or out, ensure breaker is in
the OFF position
. See Warning on page 1.

Section 4.2 Operation


Next step is to depress the momentary
pushbutton, (RUN) which will start the drive.
Hold down the button until the breaker reaches
final position. The drive controller is equipped
with a current inrush sensor. When the breaker
reaches it’s end of stroke whether CONNECTED

Fig. 4 Remote Racking Operator drive train



or DISCONNECTED the controller will sense the
increase in current and shut off power to the
motor. An LED labeled “TORQUE LIMIT” , (6, fig 5)
will illuminate signaling end of stroke. Remove
pressure from the (RUN) button. There is also a
striped label on the motor shaft exiting the rear
of the motor. This can be used for a visual
reference for when the breaker has reached the
final positions.


Fig. 5 Control Box

TORQUE LIMIT

1

2

3

4

5

6

Advertising