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
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
Three instances of HZPDIF are used as a busbar protection for one busbar zone.
1MRK 505 388-UEN B Section 6
Differential protection
Busbar protection REB650 2.2 IEC 73
Application manual