ABB Relion 670 Series Applications Manual page 119

1MRK 511 401-UUS F
Section 7
7.1 High impedance differential protection, single phase
HZPDIF (87)
7.1.1 Identification
Function description
High impedance differential
protection, single phase
7.1.2 Application
The 1Ph High impedance differential protection function HZPDIF (87) can be used as:
• Generator differential protection
• Reactor differential protection
• Busbar differential protection
• Autotransformer differential protection (for common and serial windings only)
• T-feeder differential protection
• Capacitor differential protection
• Restricted ground fault protection for transformer, generator and shunt reactor windings
• Restricted ground fault protection
The application is dependent on the primary system arrangements and location of breakers,
available CT cores and so on.
Bay control REC670
Application manual
Differential protection
IEC 61850
identification
HZPDIF
© Copyright 2017 ABB. All rights reserved
IEC 60617 ANSI/IEEE C37.2
identification device number
Id 87
SYMBOL-CC V2 EN-US
Section 7
Differential protection
IP14239-1 v4
M14813-1 v4
IP14944-1 v3
SEMOD54734-4 v8
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