Woodward DSLC, Инструкция по установке и эксплуатации

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Manual 02007 DSLC Digital Synchronizer and Load Control
Woodward 33
Menu 4—VAR/Power Factor Control
1.
VAR/PF Control Mode enables or disables the VAR or Power Factor
control functions.
2.
VAR/PF Gain determines how fast the VAR/PF control responds to an error
between kVARs/PF and VAR or PF reference. The gain is set to provide
stable control of kVARs or power factor.
3.
VAR/PF Stability compensates for delay in the reactive power control loop.
This prevents low frequency hunting and damping (overshoot or
undershoot) when a change in reactive power occurs.
4.
Rated KVARs is the generator manufacturer's kVAR rating. If unknown, set
to 60% of the kVA rating, which is the kVAR load at 0.8 lagging power factor
at rated kVA.
5.
KVAR Reference specifies the desired kVAR load at which to control in the
VAR control mode. Active when the Base Load input is closed.
6.
PF Reference specifies the desired power factor at which to control in the
power factor control mode. Active when the Base Load input is closed.
7.
PF Deadband specifies an error window about the PF Reference or KVAR
Reference, inside of which the VAR/power factor control will not adjust the
voltage regulator. Deadband is especially useful in systems using a MOP to
adjust voltage.
8.
Voltage Reference specifies the bus voltage reference for VAR/PF sharing
when in isochronous load sharing mode.
9.
Voltage Trim enables or disables the isochronous load sharing mode
voltage trim function. When disabled, the bus voltage in an isochronous load
sharing system will be determined by the average of the voltage settings of
all units. When enabled and in power factor sharing, the DSLC control will
adjust the bus voltage to within the voltage regulation percentage before
correcting for a power factor error.
10.
Voltage Regulation determines how close the bus voltage will be kept to
the voltage reference when the voltage trim function is enabled and the
operating mode is isochronous power factor sharing.
11.
Voltage Low Limit specifies the voltage low limit alarm trip point. This set
point is also the lower limit for the synchronizer voltage matching and
manual lower voltage functions.
12.
Voltage Low Alarm specifies if the voltage low limit alarm will activate (de-
energize) the alarm driver, terminal 28.
13.
Voltage High Limit specifies the voltage high limit alarm trip point. This set
point is also the raise limit for the synchronizer voltage matching and
manual raise voltage functions.
14.
Voltage High Alarm specifies if the voltage high limit alarm will activate (de-
energize) the alarm driver, terminal 28.
15.
Voltage Switches specifies if the voltage high or low limit outputs, terminals
25 and 26, will activate the high or low limit relay driver outputs.