11.6.2 Differential protection
11.6.2.1
High impedance differential protection HZPDIF (87)
Main menu/Test/Function status/Differential protection/
HighImpDifferential(PDIF,87)/HZD
Displays available instances of HZPDIF (87) with some measurements per instance.
These are the trip signal, the alarm signal and the measured RMS voltage on the
secondary side of the CT.
11.6.3 Impedance protection
Impedance protection values are viewable in the submenus of the Impedance
protection folder in the HMI. Information such as trip and pickup signals, trip output,
trip categories etc. is provided.
11.6.3.1 Full-scheme distance protection, mho characteristic ZMHPDIS (21)
Main menu/Test/Function status/Impedance Protection/MhoDistance(PDIS,21)/
ZMH
Displays the output data of the selected ZMHPDIS (21) instance.
11.6.3.2 Distance protection zone, quadrilateral characteristic ZMQPDIS,
ZMQAPDIS (21)
Main menu/Test/Function status/Impedance Protection/DistanceZones(PDIS,21)/
ZM
Displays instances of ZMQPDIS (21) for zone 1. The output quantities shown here
indicate trip and pickup signal status.
Main menu/Test/Function status/Impedance Protection/DistanceZones(PDIS,21)/
ZM
Displays available instance of ZMQAPDIS (21) for zones 2-5. The output quantities
shown here indicate trip and pickup signal status.
11.6.3.3 Distance protection zone, quadrilateral characteristic ZMCPDIS,
ZMCAPDIS (21)
Main menu/Test/Function status/Impedance Protection/DistanceZones(PDIS,21)/
ZMC
Section 11 1MRK506276-UUS B
Test the IED
74
Operator's manual
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