Schweitzer Engineering Laboratories SEL-751 - Page 898

L.6
SEL-751 Relay Instruction Manual Date Code 20170927
Analog Quantities
AI401MN to AI408MN Analog transducer input 401–408 minimum EU
9
xxxx x x
AI501MX to AI508MX Analog transducer input 501–508 maximum EU
9
xxxx x x
AI501MN to AI508MN Analog transducer input 501–508 minimum EU
9
xxxx x x
RMS Metering
IARMS A-phase rms current A pri xxxx x x
IBRMS B-phase rms current A pri xxxx x x
ICRMS C-phase rms current A pri xxxx x x
INRMS Neutral rms current A pri xxxx x x
VARMS A-phase rms voltage V pri xxxx x x
VBRMS B-phase rms voltage V pri xxxx x x
VCRMS C-phase rms voltage V pri xxxx x x
VSRMS Vsync rms voltage V pri xxxx x x
VABRMS A-to-B-phase rms voltage V pri xxxx x x
VBCRMS B-to-C-phase rms voltage V pri xxxx x x
VCARMS C-to-A-phase rms voltage V pri xxxx x x
Demand Metering
IAD A-phase current demand A pri x x x x x x
IBD B-phase current demand A pri x x x x x x
ICD C-phase current demand A pri x x x x x x
IGD Residual current demand A pri x x x x x x
3I2D Negative-sequence current demand A pri x x x x x x
KWADI Real power, A-phase demand IN kW pri x x x x
KWBDI Real power, B-phase demand IN kW pri x x x x
KWCDI Real power, C-phase demand IN kW pri x x x x
KW3DI Real power, three-phase demand IN kW pri x x x x
KVARADI Reactive power, A-phase demand IN kVAR pri x x x x
KVARBDI Reactive power, B-phase demand IN kVAR pri x x x x
KVARCDI Reactive power, C-phase demand IN kVAR pri x x x x
KVAR3DI Reactive power, three-phase demand IN kVAR pri x x x x
KWADO Real-power, A-phase demand OUT kW pri x x x x
KWBDO Real power, B-phase demand OUT kW pri x x x x
KWCDO Real power, C-phase demand OUT kW pri x x x x
KW3DO Real power, three-phase demand OUT kW pri x x x x
KVARADO Reactive power, A-phase demand OUT kVAR pri x x x x
KVARBDO Reactive power, B-phase demand OUT kVAR pri x x x x
KVARCDO Reactive power, C-phase demand OUT kVAR pri x x x x
KVAR3DO Reactive power, three-phase demand OUT kVAR pri x x x x
Peak Demand Metering
Note10: In addition to the peak demand data, the time when the peak demand data were last reset is also reported in Modbus
(the actual labels used in the Modbus Map are not PM_LRDH, PM_LRDM, PM_LRDL).
PM_LRDH
10
Peak demand last reset date/time high word x
7
PM_LRDM
10
Peak demand last reset date/time middle word x
7
PM_LRDL
10
Peak demand last reset date/time low word x
7
Table L.1 Analog Quantities (Sheet 6 of 8)
Name Description Units
Display Points SELOGIC Load Profile DNP3/Fast Message Read/ IEC 60870-5-103 Modbus Fast Meter IEC 61850