ABB REL670 Operator's Manual page 13

Operator's manual
Overview............................................................................................71
Binary Output Module BOM..........................................................71
Signal matrix for binary outputs SMBO........................................71
Function test modes...............................................................................71
Overview............................................................................................71
Differential protection ........................................................................72
Impedance protection........................................................................72
Current protection..............................................................................72
Voltage protection .............................................................................72
Frequency protection.........................................................................72
Multipurpose protection ....................................................................72
Scheme communication ...................................................................72
Secondary system protection ...........................................................73
Control ..............................................................................................73
Monitoring..........................................................................................73
Logic..................................................................................................73
Function status.......................................................................................73
Overview............................................................................................73
Differential protection.........................................................................74
High impedance differential protection HZPDIF (87)....................74
Impedance protection........................................................................74
Full-scheme distance protection, mho characteristic
ZMHPDIS (21)..............................................................................74
Distance protection zone, quadrilateral characteristic
ZMQPDIS, ZMQAPDIS (21).........................................................74
Distance protection zone, quadrilateral characteristic
ZMCPDIS, ZMCAPDIS (21).........................................................74
Fullscheme distance protection, quadrilateral for earth faults
ZMMPDIS, ZMMAPDIS (21).........................................................75
Faulty phase identification with load enchroachment
FMPSPDIS (21)............................................................................75
Phase selection with load encroachment FDPSPDIS (21)...........75
Phase preference logic PPLPHIZ.................................................75
Directional impedance ZDRDIR (21D).........................................76
Directional impedance element for mho characteristic
ZDMRDIR (21D)...........................................................................76
Directional impedance quadrilateral, including series
compensation ZDSRDIR (21D)....................................................76
Additional distance protection directional function for ground
faults ZDARDIR ...........................................................................76
Mho Impedance supervision logic ZSMGAPC.............................76
Table of contents
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