Table 117. Functions included in the relay, continued
Function IEC 61850 IEC 60617 IEC-ANSI
Reverse power/directional overpower protection DOPPDPR1 P>/Q> (1) 32R/32O (1)
DOPPDPR2 P>/Q> (2) 32R/32O (2)
DOPPDPR3 P>/Q> (3) 32R/32O (3)
Three-phase underexcitation protection UEXPDIS1 X< (1) 40 (1)
Three-phase underimpedance protection UZPDIS1 Z<G (1) 21G (1)
Out-of-step protection OOSRPSB1 OOS (1) 78 (1)
Interconnection functions
Directional reactive power undervoltage protection DQPTUV1 Q> ->,3U< (1) 32Q,27 (1)
Low-voltage ride-through protection LVRTPTUV1 U<RT (1) 27RT (1)
LVRTPTUV2 U<RT (2) 27RT (2)
LVRTPTUV3 U<RT (3) 27RT (3)
Voltage vector shift protection VVSPPAM1 VS (1) 78V (1)
Power quality
Current total demand distortion CMHAI1 PQM3I (1) PQM3I (1)
Voltage total harmonic distortion VMHAI1 PQM3U (1) PQM3V (1)
Voltage variation PHQVVR1 PQMU (1) PQMV (1)
Voltage unbalance VSQVUB1 PQUUB (1) PQVUB (1)
Control
Circuit-breaker control CBXCBR1 I <-> O CB (1) I <-> O CB (1)
Disconnector control DCXSWI1 I <-> O DCC (1) I <-> O DCC (1)
DCXSWI2 I <-> O DCC (2) I <-> O DCC (2)
Earthing switch control ESXSWI1 I <-> O ESC (1) I <-> O ESC (1)
Disconnector position indication DCSXSWI1 I <-> O DC (1) I <-> O DC (1)
DCSXSWI2 I <-> O DC (2) I <-> O DC (2)
DCSXSWI3 I <-> O DC (3) I <-> O DC (3)
Earthing switch indication ESSXSWI1 I <-> O ES (1) I <-> O ES (1)
ESSXSWI2 I <-> O ES (2) I <-> O ES (2)
Synchronism and energizing check SECRSYN1 SYNC (1) 25 (1)
Condition monitoring and supervision
Circuit-breaker condition monitoring SSCBR1 CBCM (1) CBCM (1)
Trip circuit supervision TCSSCBR1 TCS (1) TCM (1)
TCSSCBR2 TCS (2) TCM (2)
Current circuit supervision CCSPVC1 MCS 3I (1) MCS 3I (1)
Fuse failure supervision SEQSPVC1 FUSEF (1) 60 (1)
Runtime counter for machines and devices MDSOPT1 OPTS (1) OPTM (1)
Measurement
Disturbance recorder RDRE1 DR (1) DFR (1)
Load profile record LDPRLRC1 LOADPROF (1) LOADPROF (1)
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