TP-6735 7/1768 Section 5 Component Testing and Adjustment
D Readjust the voltage stability (2P) and voltage (1P)
parameters after adjusting the volts/Hz setting, if
necessary.
D Remember to save your settings.
Frequency Cut-In Frequency
60 Hz 57.5 Hz
50 Hz 47.5 Hz
Figure 5-14 Cut-In Frequencies
Volts/Hz Adjustment Procedure
1. Set the voltmeter to measure frequency. Adjust the
engine speed to the cut-in frequency shown in
Figure 5-14 by adjusting the engine governor
speed.
2. Set the voltmeter to measure voltage. Adjust the
volts/Hz until the voltage level measured by the
voltmeter begins to drop. When set, the generator
(as load is applied) attempts to maintain normal
output until the engine speed drops below the
cut-in frequency.
3. Set the voltmeter to measure frequency. Adjust the
engine speed to the operating frequency (50 or
60 Hz) by adjusting the engine governor speed.
4. Readjust the voltage gain until the light flicker
minimizes, if necessary.
5. Check the voltage. Readjust the voltage, if
necessary.
6. Stop the generator set.
To Next Page
Loading...
