O&M Manual –90E1720004
Section 7 Energizing the Bypass-Isolation Transfer Switch Page 25 of 52
Section 7 Energizing the Bypass-Isolation Transfer Switch
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Correct short circuit conditions detected during the checkout
procedures described in “Section 6 – Pre-Energizing Checkout
Procedure”.
Qualified electrical personnel must be present when energizing
this equipment for the first time.
Follow the instructions in this section to properly energize this
transfer switch.
Failure to follow these instructions will result in death or serious
injury.
Warning –Only Trained Personnel should perform this procedure.
Follow all NFPA 70E safety procedures and wear proper PPE.
Note: It is standard practice when energizing a transfer switch for the first time to close one of
the source feeder breakers and leave the other source breaker locked out and tagged out until all
settings and timers are verified correct.
Note: This procedure does not replace startup by a qualified Russelectric field service
technician; such service should be scheduled by calling Russelectric services at 1-800-654-
3020.
Energize the Switch
1. No load should be on the bypass-isolation transfer switch when it is energized.
Turn off all downstream loads. The transfer switch should be racked in and in
the S1 position. The bypass switch handle should be in the up or non-bypass
position.
2. Energize the switch in the following sequence:
a. Close any open doors and/or covers.
b. Close the preferred source (S1) circuit breaker.
c. Verify the RPTCS controller and OIP power up.
d. Verify all settings and timers per the specification sheets provided with
the switch.
e. Verify the transfer switch is connected to or transferred to the energized
(S1) source by checking the indicators on the OIP or the optional LED
indicators on the accessory panel (See Section 8 Operation).
f. Bypass to the energized source.
g. Close the S2 circuit breaker.
h. Perform a no-load test per Section 8 Operation of this manual.
i. Verify the generator started by checking the S2 available LED is lit.
j. Cancel the no-load test. After the engine cooldown timer (TDEC) times
out the engine will shut down.
k. Perform a load test.
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