Generac Power Systems RTSJ200A3, Руководство пользователя

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7
3.3 VOLTAGE CHECKS
1. Turn ON the UTILITY power supply to the LTS using the
UTILITY SERVICE DISCONNECT circuit breaker.
 PROCEED 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 compat-
ible with transfer switch ratings, turn OFF the UTILITY supply to
the transfer switch.
4. On the generator panel, set the AUTO/OFF/ MANUAL switch to
MANUAL position. The generator should crank and start.
The voltage measurements should be as follows:
N1 - N2 240 VAC Nominal
N1 - Neutral 120 VAC Nominal
N2 - Neutral 120 VAC Nominal
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.
 PROCEED 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.
7. 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
8. Set the generator’s main circuit breaker (CB1) to its OFF or
OPEN position.
9. Set the AUTO/OFF/MANUAL switch to the OFF position to shut
down the generator.
NOTE:
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 UP for the
non-essential loads OFF.
Move handle DOWN for the
non-essential loads ON.
Attach handle to the moveable
contact carrier arm.
NOTE: Return handle to storage position in enclosure when finished with manual transfer.
Figure 3.2 — Actuating LSS Transfer Switch
Operation