Voltage Adjustments Using Sitetech; Voltage Regulator Average Voltage Adjustment - Kohler 38RCL Manual

6.5.1 Voltage Adjustments Using
SiteTech
The SiteTech parameters used to adjust the voltage in
the following procedures are shown in Figure 6-7 and
Figure 6-8.
SiteTech Group
Genset System Configuration
Voltage Regulator
Figure 6-7 SiteTech Parameters for Voltage
1
1. Voltage regulator parameter group
Figure 6-8 Voltage Regulator Parameter Group in
SiteTech
80 Section 6 Component Testing and Adjustment
Parameter
Genset System Voltage
Average Voltage Adjustment
Volts per Hertz Slope
Volts per Hertz Cut-in
Frequency
Voltage Regulator Gain
tp6805
6.5.2 Voltage Regulator Average
Voltage Adjustment
Voltage regulation is performed by the controller. The
controller monitors generator output voltage and adjusts
the excitation current to the rotor.
Excitation current control is performed by the patented
Kohler Hybrid Voltage Regulator. This regulator
consists of a fast-reacting analog inner loop and a
slower digital outer loop. The inner loop regulates the
average output voltage to a setpoint which is controlled
by the outer loop, allowing the voltage to recover very
quickly during transient conditions. The outer loop
measures the RMS magnitude of the voltage and
adjusts the setpoint for the inner loop until the RMS
voltage amplitude matches the Voltage Regulator
Average Voltage Adjustment setpoint.
The Hybrid Voltage Regulator regulates to the average
RMS voltage of all three phases on a three-phase
generator set.
The Hybrid Regulator should require no voltage
adjustment, as it regulates the RMS output voltage to
the configured output voltage. The Voltage Regulator
Average Voltage Adjustment setpoint may require
alteration to more closely match the utility voltage at a
particular location or to compensate for voltage drop on
wiring between the generator and the ATS.
The Voltage Regulator Average Voltage Adjustment can
be adjusted from the Voltage Regulator menu on the
RDC2 controller, or adjusted using SiteTech.
Figure 6-8 and Figure 6-9.
See
TP-6811 7/16