Operation Of The Switchgear - ABB UniGear ZVC Installation, Operation And Maintenance Instructions Manual

O P E R A T I O N O F T H E S W I T C H G E A R
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7 Operation of the switchgear

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Note on safety at work!
7/1 Operation of
The relative work and operating
the door catch
procedures must be carried out carefully
by trained specialists familiar with the
installation, taking into account all the
relative safety regulations according to
the IEC and other relevant professional
bodies, as well as any local and work
regulations and instructions.
Note:
Do not walk on the top surfaces of the switchgear
panels (rupture points for pressure relief).
7.1 Switching operations
Carry out switching operations with the front
doors closed.
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7/1
Catch
7.1.1 Withdrawable fused contactor
Switching of the contactor is carried out via the
control features fitted to the instrument
compartment. The contactor status is indicated
on the front of the contactor and can be viewed
through the top viewing window. Switching
operations can only be carried out with the
withdrawable contactor in service or in the test
position. We highly recommend that all
switching be done with the front door closed.
For a mechanically latched contactor (optional),
emergency opening (4/13) is achieved by using
the special rod provided to operate the emergency
manual trip operator fitted on the withdrawable
contactor.
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