Function IEC 61850 ANSI D F L N P
Protection
Three-phase non-
directional overcurrent
protection, low stage PHLPTOC
Three-phase non-
directional overcurrent
protection, high stage PHHPTOC
Three-phase non-
directional overcurrent
protection,
instantaneous stage PHIPTOC
Three-phase directional
overcurrent protection,
low stage DPHLPDOC
Three-phase directional
overcurrent protection,
high stage DPHHPDOC
Non-directional earth-
fault protection, low
stage EFLPTOC
Non-directional earth-
fault protection, high
stage EFHPTOC
Non-directional earth-
fault protection,
instantaneous stage EFIPTOC
Directional earth-fault
protection, low stage DEFLPDEF
Directional earth-fault
protection, high stage DEFHPDEF
Admittance-based
EFPADM
Wattmetric-based earth-
WPWDE
earth-fault protection INTRPTEF
Harmonics-based earth-
HAEFPTOC
Negative-sequence
overcurrent protection NSPTOC
Phase discontinuity
protection PDNSPTOC
Residual overvoltage
protection ROVPTOV
Three-phase
undervoltage protection PHPTUV
Three-phase overvoltage
protection PHPTOV
Positive-sequence
undervoltage protection PSPTUV
Negative-sequence
overvoltage protection NSPTOV
Three-phase remnant
undervoltage protection MSVPR
Frequency protection FRPFRQ
Three-phase thermal
protection for feeders,
cables and distribution
transformers
High-impedance
differential protection
for phase A
High-impedance
differential protection
for phase B HIBPDIF
—
Table 2. Supported functions, continued
10 REF615 ANSI 5.0 FP1 FEEDER PROTECTION AND CONTROL
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