Nidec 22765-01, Руководство пользователя

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Page 24
Operation
Initial startup
Units with Automatic and Manual Voltage Control
1. Disconnect the generator output from the load by opening the
main circuit breaker.
2. Turn the manual voltage adjust rheostat fully counterclockwise.
3. Put the auto-manual switch in the manual position.
4. Start the prime mover, and bring the set to rated speed. Turn the
manual voltage adjust rheostat to reach rated voltage. Close the
output circuit breaker, and apply load in steps until the rated load
is reached. Adjust the manual adjust rheostat as necessary to
obtain the desired output voltage.
5. Gradually reduce load, and adjust the rheostat accordingly until
no load is reached. Open the circuit breaker, and stop the prime
mover.
6. Actuate the auto voltage rheostat. Then start the genset, and
bring it to rated speed. Adjust the voltage to the desired value.
7. Close the output circuit breaker. Then check the generator
voltage and voltage regulation. Apply load in steps until the rated
load is reached.
8. Check for vibration levels at no load and rated load. A slight
increase is normal. As the load is maintained for 2-3 hours, the
vibration levels will gradually increase and reach a final level.
Units with Automatic Voltage Control Only
The generator has an automatic voltage regulator (AVR) with no auto-
manual switch.
1. Disconnect the generator output from the load by opening the
main circuit breaker.
2. Turn the voltage adjust rheostat fully counterclockwise. Start the
prime mover, and bring the set to rated speed. Turn the voltage
adjust rheostat to obtain the desired voltage.
3. Close the output circuit breaker, and apply load in gradual steps
until the rated load is reach. Note the voltage regulation with the
changes in load steps.
4. Check for vibration levels at no load and rated load. A slight
increase is normal. As the load is maintained for 2-3 hours, the
vibration levels will gradually increase and reach a final level.
NOTE: Do not actuate the auto-manual
switch with the full load applied to the
generator. Generator over-voltage will
result which may cause damage to
the generator control and protection
equipment. Whenever possible, stop the
generator before switching to assure full
load is not applied.