ABB Relion REC670 - Section 6 Differential protection; 6.1 High impedance differential protection, single phase HZPDIF

Section 6 Differential protection
6.1 High impedance differential protection, single phase
HZPDIF
IP14239-1 v4
6.1.1 Identification
M14813-1 v4
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
High impedance differential
protection, single phase
HZPDIF
Id
SYMBOL-CC V2 EN-US
87
6.1.2 Application
IP14944-1 v3
SEMOD54734-4 v8
The 1Ph High impedance differential protection function HZPDIF 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 earth fault protection for transformer, generator and shunt reactor windings
• Restricted earth fault protection
The application is dependent on the primary system arrangements and location of breakers,
available CT cores and so on.
1MRK 511 358-UEN A Section 6
Differential protection
85
Application manual