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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 505 343-UEN B
Section 6
Differential protection
93
Application manual
Summary of Contents for Relion 670 series
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