ABB MNS-MCC, Инструкция по установке, эксплуатации и обслуживанию

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38
M N S - MCC
LO W VO LTAG E M OTO R CO N T R O L C EN T ER
The rotary operating handle can be locked in the
OFF position while the unit is in any of the following
physical positions; ENGAGED, ISOLATED or
WITHDRAWN. It can also be locked while in the
TEST position.
The withdrawable units include a safety interlock
mechanism that allows insertion or withdrawal of
the unit only when the handle is in the MOVE
position. In this handle position, the disconnecting
means will be OFF.
Referred to the Remove/Insert Withdrawal Units
section of this manual for instructions on removing
the unit.
Test Position (If provided)
You can put the unit in the TEST mode without
physically moving the withdrawable unit by turning
the operating handle to the TEST position.
For safety, you can lock the operating handle in the
OFF positions using up to three padlocks.
When withdrawable units are not being used, move
the operating handle to the OFF position.
Opening the door
The rotary operating handle mechanism prevents
opening the door unless it is in the OFF position.
You can defeat the door interlock when in the ON
position using a tool. (Item 29 of fig. 60).
Danger:
Opening the front covers while the
operating handle is in the ON position
exposes you to hazardous voltage levels.
Only trained individuals wearing correct
personal protective equipment should
attempt to open unit door while energized.