THOMSON TS 910 - b) Equipment Energization

TS 910 TRANSFER SWITCH
PM140 REV 0 12/02/09 53 Thomson Technology
b) Equipment Energization
D
DD
DANGER
ANGERANGER
ANGER
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.
Failure to do so may cause personal injury or death
1. Confirm Utility, Generator and loads can be energized in a safe manner.
2. Energize utility supply and confirm voltage is 120/240V and phasing is correct
at the source.
3. Verify the status of the following indicator lights on the TSC 9 HMI faceplate:
- Utility Source Green light is “ON”
- Load on Utility Green light is “ON”
4. Run the generator manually and confirm generator supply voltage is 120/240V
and phasing is correct at the source.
5. Verify the status of the following indicator lights on the TSC 9 HMI faceplate:
- Generator Source Red Light is “ON”
6. Using appropriate personal protective equipment (PPE) and insulated
tools/meters, remove the transfer switch front cover while energized.
7. Verify at the transfer switch (while energized), the utility and generator supply
voltage, phasing and phase rotation is correct.
8. Manually stop generator and place the generator controls in the "AUTOMATIC"
position.
9. To confirm automatic starting and load transferring of the generator, perform
the following steps:
a) To test, press and hold the “T” pushbutton on the TSC 9 controller
faceplate for 2 seconds until light above pushbutton comes ON. The
generator will start and transfer on load per Automatic Sequence.
b) To determine correct operation, observe the following on the TSC 9
faceplate:
- Gen Start Red light is “ON”
- Gen Source Red light is “ON”
- Load on Gen Red light is “ON
10. To stop the generator and transfer load back to the utility supply, press and hold the “T”
pushbutton for 2 seconds until light above pushbutton goes OFF. The load will re-
transfer back to the utility power as per Automatic Sequence.
11. Perform a utility power outage test by opening the upstream utility feeder
breaker. The TSC 9 controller Utility supply light will turn off; the generator set
will start after the 3-second engine start delay has expired, the generator
should start and transfer on load as per Automatic Sequence.
15. Return the transfer switch to utility power by re-closing the upstream utility
breaker. The load should re-transfer back to the utility supply as per Automatic
Sequence.