Deif PPM 300 - Reactive Power Import (ANSI 40 U)

The alarm response is based on the reactive power (Q) from the source, as measured and
calculated by the controller.
Set
point
Value
time
Delay
Configure the parameters under Configure > Parameters > [Source] > Reactive power protections > Reactive power export #,
where # is 1 or 2.
Table 3.50
Default parameters
Parameter Range Reactive power export 1 Reactive power export 2
Set point 0 to 100 % of nominal reactive power 60 % 75 %
Delay 0.00 s to 1 h 10.00 s 5.00 s
Enable Not enabled, Enabled Not enabled Not enabled
Action Warning Warning
3.4.19 Reactive power import (ANSI 40U)
Protection
IEC symbol (IEC60617) ANSI (IEEE C37.2) IEC 61850 Operate time
Reactive power import (loss of excitation/under-
excitation)
Q<, Q<< 40U PUEX < 100 ms
The alarm response is based on the reactive power (Q) to the source, as measured and
calculated by the controller.
Set
point
Value
time
Delay
Configure the parameters under Configure > Parameters > [Source] > Reactive power protections > Reactive power import #,
where # is 1 or 2.
Table 3.51
Default parameters
Parameter Range Reactive power import 1 Reactive power import 2
Set point 0 to 150 % of nominal reactive power (Q) 50 % 70 %
Delay 0.00 s to 1 h 10.00 s 5.00 s
Enable Not enabled, Enabled Not enabled Not enabled
Action Warning Warning
3.4.20 Generator differential current protection (ANSI 87G)
Protection
IEC symbol (IEC60617) ANSI (IEEE C37.2) IEC 61850 Operate time
Generator stabilised differential current Id> 87G PDIF < 55 ms
Generator high set differential current Id>> 87G PDIF < 55 ms
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