11.25
Date Code 20171021 Instruction Manual SEL-421 Relay
Relay Word Bits
Alphabetical List
PLDTE Asserts for approximately 1.5 cycles when the TEC command is used to load a new time-error correction
factor (preload value) into the TECORR analog quantity.
296
PLT01–PLT08 Protection Latch 1–8 124
PLT09–PLT16 Protection Latch 9–16 125
PLT17–PLT24 Protection Latch 17–24 126
PLT25–PLT32 Protection Latch 25–32 127
PMDOK Assert if data acquisition system is operating correctly 209
PMTEST Synchrophasor test mode 288
PMTRIG Trigger (SEL
OGIC control equation) 288
PST01Q–PST08Q Protection Sequencing Timer 1–8 output 134
PST09Q–PST16Q Protection Sequencing Timer 9–16 output 135
PST17Q–PST24Q Protection Sequencing Timer 17–24 output 136
PST25Q–PST32Q Protection Sequencing Timer 25–32 output 137
PST01R–PST08R Protection Sequencing Timer 1–8 reset 138
PST09R–PST16R Protection Sequencing Timer 9–16 reset 139
PST17R–PST24R Protection Sequencing Timer 17–24 reset 140
PST25R–PST32Q Protection Sequencing Timer 25–32 reset 141
PSV01–PSV08 Protection SEL
OGIC Variable 1–8 116
PSV09–PSV16 Protection SEL
OGIC Variable 9–16 117
PSV17–PSV24 Protection SEL
OGIC Variable 17–24 118
PSV25–PSV32 Protection SEL
OGIC Variable 25–32 119
PSV33–PSV40 Protection SEL
OGIC Variable 33–40 120
PSV41–PSV48 Protection SEL
OGIC Variable 41–48 121
PSV49–PSV56 Protection SEL
OGIC Variable 49–56 122
PSV57–PSV64 Protection SEL
OGIC Variable 57–64 123
PT Permissive trip received 58
PTA A-Phase permissive trip received (ECOMM = POTT3) 63
PTB B-Phase permissive trip received (ECOMM = POTT3) 63
PTC C-Phase permissive trip received (ECOMM = POTT3) 63
PTDRX Directional permissive trip received (ECOMM = POTT, EPTDIR = Y) 63
PTP_BNP Bad jitter on PTP signals and the PTP signal is lost afterwards 400
PTP_OK PTP is available and has sufficient quality 400
PTP_RST Disqualify PTP high accuracy time source 400
PTP_SET Qualify PTP high accuracy time source 400
PTP_TIM A valid PTP time source is detected 400
PTPSYNC Synchronized to a high quality PTP source 400
PTRX Permissive trip received Channel 1 and Channel 2 60
PTRX1 Permissive trip received Channel 1 59
PTRX2 Permissive trip received Channel 2 59
PUNRLBL Protection SEL
OGIC control equation unresolved label 202
QDEM Negative-sequence demand current picked up 90
Table 11.1 Alphabetic List of Relay Word Bits (Sheet 25 of 34)
Name Description Row
To Next Page
Loading...
