77
—
Table 119. Functions included in the relay (continued)
Function IEC 61850 ANSI
Frequency protection
Three-phase thermal protection for feeders, cables and distribution
transformers
High-impedance based restricted earth-fault protection
High-impedance differential protection for
phase A
High-impedance differential protection for
phase B
High-impedance differential protection for
phase C
Circuit breaker failure protection
Three-phase inrush detector
Switch onto fault
Master trip
Arc protection
Multipurpose protection
Fault locator
High-impedance fault detection
protection
Multifrequency admittance-based earth-fault protection
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