K.5
Date Code 20100129 Instruction Manual SEL-751A Relay
Analog Quantities
RMS Metering
IARMS A-phase rms current A primary xxxx
IBRMS B-phase rms current A primary xxxx
ICRMS C-phase rms current A primary xxxx
INRMS Neutral rms current A primary xxxx
VARMS A-phase rms voltage V primary xxxx
VBRMS B-phase rms voltage V primary xxxx
VCRMS C-phase rms voltage V primary xxxx
VSRMS Vsync rms voltage V primary xxxx
VABRMS A-to-B phase rms voltage V primary xxxx
VBCRMS B-to-C phase rms voltage V primary xxxx
VCARMS C-to-A phase rms voltage V primary xxxx
Demand Metering
IAD Phase A Current Demand A pri x x x x
IBD Phase B Current Demand A pri x x x x
ICD Phase C Current Demand A pri x x x x
IGD Residual Current Demand A pri x x x x
3I2D Negative-Sequence Current Demand A pri x x x x
Peak Demand Metering
PM_LRDH Peak Demand Last Reset Date/Time High Word x
PM_LRDM Peak Demand Last Reset Date/Time Middle Word x
PM_LRDL Peak Demand Last Reset Date/Time Low Word x
IAPD Phase A Current Peak Demand A pri x x x x
IBPD Phase B Current Peak Demand A pri x x x x
ICPD Phase C Current Peak Demand A pri x x x x
IGPD Residual Current Peak Demand A pri x x x x
3I2PD Negative-Sequence Current Peak Demand A pri x x x x
Breaker Monitoring
INTT Internal trips— counter xxxx
INTIA Accumulated current—internal trips, A-phase kA primary xxxx
INTIB Accumulated current—internal trips, Bphase kA primary xxxx
INTIC Accumulated current—internal trips, Cphase kA primary xxxx
EXTT External trips—counter xxxx
EXTIA Accumulated current—external trips, Aphase kA primary xxxx
EXTIB Accumulated current—external trips, Bphase kA primary xxxx
EXTIC Accumulated current—external trips, Cphase kA primary xxxx
WEARA Breaker Wear, A-phase % xxxx
WEARB Breaker Wear, B-phase % xxxx
WEARC Breaker Wear, C-phase % xxxx
Table K.1 Analog Quantities (Sheet 5 of 6)
Label Description Units
Display
Points
SELOGIC
Load
Profile
DNP
Fast
Meter