ABB REG670 - High Impedance Differential Protection, Single Phase HZPDIF

7.2 High impedance differential protection, single phase
HZPDIF
7.2.1 Identification
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
87
7.2.2 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.
Section 7 1MRK 502 071-UEN -
Differential protection
148 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual