Configuring Power Control; Special Applications; Generator Excitation Protection - Woodward easYgen-2000 Series User Manual

Application
Special Applications > Generator Excitation Prote...
6.3.4

Configuring Power Control

ID Parameter
5539 Load setpoint 1
source
5526 Load setpoint 1
5520 Int. load control
setpoint 1
Table 69: Parameter configuration for import/export power control
6.4

Special Applications

6.4.1

Generator Excitation Protection

Fig. 145: Example - generator excitation protection
372
Configure the power controller to use the internal power setpoint 1,
which must be set to 0 kW import power.
1. Either on the front panel or using ToolKit navigate to menu
"Configure load control" .
2. Configure the parameters listed below .
Value Comment
05.04. Internal The internal power setpoint 1 is used as load setpoint 1
pwr. setp.1
Import The internal power setpoint 1 is a import power value
0 kW The internal power setpoint 1 is configured to 0 kW
The easYgen controller provides the user with power factor moni‐
toring. These monitoring functions permit for protection of the gen‐
erator over- and under-excitation. The power factor monitoring con‐
sists of a warning alarm and/or a shutdown alarm when enabled.
An alarm and the specified action will be initiated if the monitored
power factor surpasses the defined limits. Typically the generator
is monitored for loss of excitation and/or over excitation in a mains
parallel application.
When a generator plant is paralleled against a utility, it is possible
to control the power factor at a desired reference. When the plant
is operated in an island mode or isolated parallel application, it is
not possible to control the power factor. The load will dictate what
the power factor is due to the reactive nature of the load.
Fig. 145 shows a typical power factor (generator excitation) protec‐
tion range, where the desired range of operation (green area) is
from 0.7 lagging (inductive) to 0.8 leading (capacitive).
When the power factor exceeds either of these limits by entering
the yellow shaded areas starting at 0.7 lagging or 0.8 leading for
more than 30 seconds, a class B warning alarm is initiated.
easYgen-2200/2500 | Genset Control 37535B