Northern Lights OPX300K2, Руководство оператора

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OPX300K2 2/18
10
Operation – Automatic Voltage
Regulator
SAFETY RULES
• Do not leave AVR connected when testing generator
with high-pot or megger.
• Adjust the engine only when the CPR is in “OFF”
position.
OPERATION
1. Make sure the wiring is correct.
2. Make sure the frequency selection switch is set to
the rated frequency (60 or 50 Hz).
3. To adjust the voltage turn the Voltage Adjust
(VR1) counter-clock wise. Make sure the CPR is
“ON”.
a. Start the engine with no load and increase the
engine speed slowly to the rated level.
The voltage will automatically build up (residual
voltage: more than 10V).
b. Adjust to the rated voltage using the Voltage
Adjust (VR1).
c. Make sure of the proper Volt/Frequency
characteristic by reducing the generator speed.
d. Make sure of voltage stability by switching the
load “ON” or “OFF”. Use the Stability Adjust
(VR2).
e. If you find no problem with the AVR, start the
normal operation.
ADJUSTMENT
Each component of the AVR is adjusted at the factory
to obtain optimum voltage. If readjustment is
necessary, make sure the voltage, frequency, load, etc.
are functioning properly after readjustment.
1.
Initial Excitation:
For initial excitation use a
DC12V or DC24V battery.
a. Stop the generator.
b. Remove the AVR connectors.
c. Connect the field terminal F(+) with the
polarity (+) of battery and the terminal F (-)
with the polarity (-) and excite AVR field for 2
or 3 seconds.
2. Voltage Adjustment:
If the voltage output is low, increase the voltage by
turning the Voltage Adjust (VR1) slowly clockwise.
3. Stability:
If the voltage output is unstable, increase the voltage
by turning the Stability Adjust (VR2) clockwise.
4. Voltage and Frequency:
Voltage and Frequency (Hz) have been preset at the
factory.