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.
8.4.3 Setting guidelines
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 136.
1MRK 502 071-UEN - Section 8
Impedance protection
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 265
Application manual
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