13
I N SER T I O N A N D R EM OVA L
Test through connect
1. Perform visual inspection of the circuit breaker.
a. Verify close/open indicator shows open.
b. Verify charged/discharged indicator
shows charged.
c. Verify switchgear door is closed.
2. Actuate (push down) position release lever
to begin racking from test position.
a. Begin racking in the clockwise direction.
b. Release position release lever once racking
has begun (after approx. 1/2 turn).
c. Approximately 40 revolutions (400 mm) are
required to move the breaker between the
test and connect positions.
The connect position is indicated by a positive lock,
preventing further racking shaft rotation. It is
impossible to close the breaker between the test
and connect positions.
Once the breaker is fully in the connect position and
the positive lock position has been established, it is
recommended to turn the racking screw counter-
clockwise to release the pressure on the locking
mechanism, ensuring positive engagement of the
mechanical and electrical interlocks.
Connect through test
1. Perform visual inspection of the circuit breaker.
a. Verify close/open indicator shows open.
b. Verify switchgear door is closed.
2. Actuate (push down) position release lever
to begin racking from test position.
a. Begin racking in the counterclockwise
direction.
b. Release position release lever once racking
has begun (after approx. 1/2 turn).
c. Approximately 40 revolutions (400mm) are
required to move the breaker between the
connect and test positions.
The test position is indicated by a positive lock,
preventing further racking shaft rotation. It is
impossible to close the breaker between the test
and connect positions.
Test through disconnect
1. Perform visual inspection of the circuit breaker.
a. Verify breaker is open (push open button
or initiate external electric trip if closed).
b. Verify switchgear breaker door is closed
and secured.
2. Begin racking procedure using the approved
racking crank.
a. Insert racking crank socket into breaker door
access port and rotate until socket slides into
position.
b. Hold racking crank with left hand and depress
position lever with right hand.
c. Turn racking crank counterclockwise for
a ¼ turn before releasing position lever.
d. Continue racking counterclockwise
approximately four (4) turns until the
“disconnect” position is reached.
e. A positive stop will be felt, and the position
release lever will snap into the up position.
f. Relieve tension on the racking pin and
mechanical/electrical interlocks by reversing
the racking crank slightly.
