Voltage Checks - Generac Power Systems rtsy100a3 Owner's Manual

Operation
Attach handle to actuating shaft.
3.2.3 RETURN TO UTILITY SOURCE SIDE
Step 1: Manually actuate switch to return manual operating handle to
the UP position.
Step 2: Remove manual operating handle from moveable contact
carrier arm. Return handle to storage bracket.
3.3

VOLTAGE CHECKS

1. Turn ON the UTILITY power supply to the transfer switch using
the UTILITY SERVICE DISCONNECT circuit breaker.
    P ROCEED WITH CAUTION. THE TRANSFER
SWITCH IS NOW ELECTRICALLY HOT.
CONTACT WITH LIVE TERMINALS RESULTS
IN EXTREMELY HAZARDOUS AND POSSIBLY
FATAL ELECTRICAL SHOCK.
2. With an accurate AC voltmeter, check for correct voltage.
Measure across ATS terminal lugs N1 and N2. Also check N1 to
NEUTRAL and N2 to NEUTRAL.
3. When certain that UTILITY supply voltage is correct and compatible
with transfer switch ratings, turn OFF the UTILITY supply to the
transfer switch.
4. Set the generator to the MANUAL mode. The generator should
crank and start.
5. Let the generator stabilize and warm up at no-load for at least
five minutes.
6. Set the generator's main circuit breaker (CB1) to its ON or
CLOSED position.
8
Figure 3.1 — Actuating Transfer Switch
NOTE: Return handle to
storage position in enclosure
when finished with manual transfer.
Move handle
UP for the
NORMAL
(UTILITY)
position.

7.
8.
9.
Do NOT proceed until generator AC output voltage and frequen-
cy are correct and within stated limits. If the no-load voltage is
correct but no-load frequency is incorrect, the engine governed
speed may require adjustment. If no-load frequency is correct
but voltage is not, the voltage regulator may require adjustment.
Move handle
DOWN for the
EMERGENCY
   P ROCEED WITH CAUTION. GENERATOR
OUTPUT VOLTAGE IS NOW BEING DELIVERED
TO TRANSFER SWITCH TERMINALS.
CONTACT WITH LIVE TERMINALS RESULTS
IN EXTREMELY DANGEROUS AND POSSIBLY
FATAL ELECTRICAL SHOCK.
With an accurate AC voltmeter and frequency meter, check the
no-load, voltage and frequency.
Measure across ATS terminal lugs E1 to E2. Also check E1 to
NEUTRAL and E2 to NEUTRAL.
a. Frequency .............................................. 60-62 Hertz
b. Terminals E1 to E2 ................................ 240-246 VAC
c. Terminals E1 to NEUTRAL .................... 120-123 VAC
d. Terminals E2 to NEUTRAL .................... 120-123 VAC
Set the generator's main circuit breaker (CB1) to its OFF or
OPEN position.
Set the generator to the OFF mode to shut down the generator.
NOTE:
(STANDBY)
position.