High Impedance Differential Protection, Single Phase Hzpdif - ABB REG670 Applications Manual

Section 7
Differential protection
7.2
7.2.1
7.2.2
148
High impedance differential protection, single phase
HZPDIF
Identification
Function description
High impedance differential protection,
single phase
Application
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.
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
IEC 61850 IEC 60617
identification identification
Id
HZPDIF
SYMBOL-CC V2 EN
1MRK 502 071-UEN -
ANSI/IEEE C37.2
device number
87
Application manual