PSPPPAM function shall detect out of step conditions and trip the generator as fast
as possible if the locus of the pole slip is inside the generator. If the centre of pole
slip is outside the generator, situated out in the power grid, the first action should
be to split the network into two parts, after line protection action. If this fails there
should be operation of the generator pole slip protection, to prevent further
damages to the generator block.
8.16.3 Setting guidelines
SEMOD167596-1 v1
SEMOD167582-4 v4
GlobalBaseSel: Selects the global base value group used by the function to define
IBase, UBase and SBase as applicable.
Operation: With the parameter Operation the function can be set On or Off.
MeasureMode: The voltage and current used for the impedance measurement is set
by the parameter MeasureMode. The setting possibilities are: PosSeq, L1-L2, L2-
L3, or L3-L1. If all phase voltages and phase currents are fed to the IED the PosSeq
alternative is recommended (default).
Further settings can be illustrated in figure
232.
Section 8 1MRK 506 369-UEN B
Impedance protection
426 Line distance protection REL670 2.2 IEC
Application manual
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