THOMSON marathon TS 910 Series, Руководство пользователя

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TS 910 TRANSFER SWITCH
PM140 REV 0 12/02/09
12
Thomson Technology
To maintain mechanical integrity, ensure that:
•
All fasteners are adequately tightened.
•
The operating shaft is not damaged or bent, and that all bearing points operate
freely.
To maintain electrical integrity, ensure that:
•
All electrical connections, especially power connections, are clean and
adequately tightened. Corroded or loose power connections will cause
destructive heating, and may cause premature tripping.
•
All insulating devices are in place and in good condition.
•
No moisture or other contamination is present.
•
Electrical conductors are adequately secured away from moving parts.
To maintain operational integrity, ensure that:
•
All control devices are in good condition and correctly calibrated.
•
All control devices are adequately secured in their plug-in fixtures.
8. TRANSFER SWITCH MECHANISM OPERATION
The transfer mechanism is a power contactor assembly. The transfer switch mechanism has only
two possible positions: Utility contacts closed or Generator contacts closed. There is no neutral
position.
8.1. AUTOMATIC OPERATION
During automatic operation, the TSC 9 controller issues pulsed control signals to each of the
power contactor solenoids for the utility and generator supply. Two solenoids are utilized,
one for utility supply, one for the generator supply. The two solenoids are electrically
interlocked and are intermittent duty rated only (i.e. they cannot be continuously energized
otherwise damage will result).
8.2. MANUAL OPERATION
The transfer switch maybe operated manually for maintenance or emergency operation
conditions provided both Utility and Generator supplies are de-energized prior to manual
operation.
DANGER DANGER DANGER DANGER
HAZARD OF ELECTRICAL SHOCK, EXPLOSION, OR ARC FLASH
•
This equipment must be serviced only by qualified electrical personnel utilizing safe
work practices and appropriate Personal Protective Equipment (PPE).