Manual 26086 EGCP-2 Engine Generator Control Package
Woodward 111
Real Load Control
Problem Probable Cause Corrective Action
KW for a phase(s) reads
negative.
Current transformer(CT)
has reversed polarity
Verify/reverse polarity of
current transformer for
effected channel(s)
NOTE: engine generator set
must be off to safely open
circuit a current transformer.
Unit carries improper
proportion of real load
during isochronous load
sharing
Rated KW set point in
configuration menu set at
incorrect value
Appropriately set Rated KW
set point in configuration
menu. See description of
set points.
A proportional dc speed
error exists on the speed
control unit (no-load speed
not set to match bus
frequency)
Adjust speed setting of
speed control to match the
bus frequency. If unit is
carrying too little load, the
speed setting needs
increased. If unit is carrying
too much load, the speed
setting needs decreased.
Real load control is unstable
when paralleled with the
mains source
Real load control dynamics
in real load control menu
are improperly set up
Tune Real load control
dynamics in real load
control menu. See
description of set points.
Process control operation
causes overload or reverse
power
PROCESS ACTION set
point in process control
menu set for incorrect
action
Appropriately set
PROCESS ACTION set
point in process control
menu. See description of
set points.
Loading and/or unloading is
too fast/slow
Load and/or unload ramp
rates in the real load control
menu are set incorrectly
Appropriately
increase/decrease the Load
and/or unload ramp rates in
the real load control menu.
See description of set
points.
Engine speed/load has an
instability that fluctuates
very quickly.
Speed control dynamics are
improperly set up
Tune the speed control
dynamics for stable
operation. See speed
control manufacturer’s
instruction manual for more
details.
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