Kohler 15/30RES, Руководство по обслуживанию

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TP-6198 3/15 56 Section 5 Component Testing and Adjustment
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1. Load connection terminal L0
2. Controller location
3. Line circuit breaker location (circuit breaker not shown)
1
3
GM39949B--AJ
Figure 5-11 Circuit Breaker and L0 Terminal Location
4. Follow the controller instructions to step to the
voltage gain adjustment menu. Adjust the voltage
gain (parameter 2P) until the light flicker minimizes.
Save the settings.
5. Check and readjust the voltage if necessary.
6. Save the settings.
Note: The controller will revert to the previous
settings at the next startup if the changes are
not saved.
7. Stop the generator set.
Volts per Hertz Adjustments
The cut-in frequency is set at 57.5 Hz (60 Hz system) or
47.5 Hz (50 Hz system) and is not adjustable. When the
frequency falls below the cut-in, output voltage is
reduced to relieve the engine. The amount of the
voltage reduction is set by the 3P parameter. Monitor
engine speed and output voltage as loads are applied.
D
If there is excessive droop in engine speed and little
droop in voltage, increase the 3P value.
D
If there is little engine speed droop but excessive
voltage droop, decrease the 3P value.
The amount of voltage droop is approximately 0.5% of
system voltage for each step of 3P.
3P
Voltage Droop for Each Cycle
(Hz) Below Cut--in Frequency
0 0
1 0.5%
2 1.0%
3 1.5%
4 2.0%
5 2.5%
6 3.0%
7 3.5%
8 4.0%
9 4.5%
Figure 5-12 Voltage Droop Adjustments
1. Readjust the voltage stability (gain, parameter 2P),
if necessary.
2. Readjust the voltage (parameter 1P), if necessary.
3. Stop the generator set.
5.8 Voltage Reconnection
Voltage Reconnection is covered in the generator set
Installation Manual. See the List of Related Materials for
the document number.
5.9 Governor System
The frequency of the alternator output is determined by
the speed of the engine. A four-pole alternator must be
driven at 1800 rpm to provide 60 Hz. A two-pole
alternator must be driven at 3600 rpm to provide 60 Hz.
The engine speed is maintained by the Engine Control
Module (ECM). See the engine documentation for ECM
information.