THOMSON TS 870 - ATS Manual Operating Instructions; S-Style ATS - Manual Operation

TS 870 Transfer Switch
PM062 REV 11 16/04/19 35 Thomson Power Systems
8. ATS MANUAL OPERATING INSTRUCTIONS
DANGER
Arc Flash and Shock Hazard. Will cause severe injury or death. Do not open
equipment until ALL power sources are disconnected. This equipment must be
operated only by qualified electrical personnel utilizing safe work practices and
appropriate Personal Protective Equipment (PPE). Failure to do so may cause
personal injury or death.
8.1. S-STYLE ATS -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
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).
Many components of this equipment operate at line voltage.
DO NOT TOUCH. Use only electrically isolated tools.
Install and close all covers before applying power to this equipment
Do not open covers to equipment until ALL power sources are disconnected
Failure to do so may cause personal injury or death
Once both Utility and Generator supplies are de-energized the following procedure can be
used to operate the Transfer Switch manually.
1. Disconnect the ATS Power Chassis & Voltage Sensing Isolation Plugs (PL12 & PL15)
to prevent automatic operation.
2. Open ATS enclosure door and locate Manual Operation Handle provided with the
transfer switch (see photo below)
Manual Operation Handle