SecoGear – Installation, Operation and Maintenance Manual 44 of 56
7. Circuit Breaker Operation
Included below are abbreviated operating instructions
for SecoVac vacuum circuit breakers. Before activation
of the circuit breakers or operation of the switchgear
equipment, thoroughly read and be familiar with the
Publication#DEH-50001 SecoVac Vacuum Circuit Breaker
Installation Manual.
Closing Operation
SecoVac vacuum circuit breakers are equipped with
an integral charging handle and a “CLOSE” pushbutton on
the front. The spring must be charged before the circuit
breaker can be closed.
A complete charge is accomplished by manually pulling
the handle down about 90° (until it stops) ten times to fully
charge the closing springs. The closing spring will be charged
automatically if the circuit breaker is in the TEST position
(secondary plug connected) and control power is present.
The charge indicator will show CHARGED on a yellow
background. The circuit breaker can be closed by pressing
the manual CLOSE pushbutton on the front cover.
Opening Operation
A manually operated OPEN pushbutton mounted on the
circuit breaker front cover, operates the trip shaft to open the
circuit breaker.