Woodward EGCP-2 - Chapter 5. Control Features and Functions; Generator Voltage and Reactive Load Control

Manual 26174 EGCP-2 Engine Generator Control Package
Woodward 107
 Adjust the Volts Bias Offset to obtain rated voltage for the generator set.
o Measure the actual generator voltage
o Follow connection procedure in Appendix D for the Voltage
Regulator being used
 What Voltage Bias Type to use
 Where to preset the Volts Bias Offset
 Press the Enter key to save the final Volts Bias Setting
 The EGCP-2 control will always reset to the saved Volts Bias Offset value
when the generator breaker is opened.
 Whenever the Generator set is started or taken offline, it will control at the
rated voltage when calibrated correctly.
Trim Adj.
Voltage Bias output from EGCP-
Internal Trim adjustment potentiometer
sets effective range of +/- 1 VDC bias
from EGCP-2 control. Usually a +/- 10%
voltage change for the +/-1VDC input
is more than sufficient for good VAR
and PF control.
trim
Volts
Figure 4-35. Typical AVR with Aux Input (Newage SX-440)
Trim Adj.
Voltage Bias outpu
t
from EGCP-2
Volts
Pot
.
On regulators without a trim input
such as Leroy Somer AVRs,
an external trim pot must be used
to limit the range of the voltage
bias input from the EGCP-2 control.
Figure 4-36. Typical AVR with External Voltage Adjust Potentiometer