L.4
SEL-751 Relay Instruction Manual Date Code 20170927
Analog Quantities
Light Metering
LSENS1 Arc-flash sensor 1 light % xxxx x x
LSENS2 Arc-flash sensor 2 light % xxxx x x
LSENS3 Arc-flash sensor 3 light % xxxx x x
LSENS4 Arc-flash sensor 4 light % xxxx x x
LSENS5 Arc-flash sensor 5 light % xxxx x x
LSENS6 Arc-flash sensor 6 light % xxxx x x
LSENS7 Arc-flash sensor 7 light % xxxx x x
LSENS8 Arc-flash sensor 8 light % xxxx x x
Thermal Metering
Note6: RTD open is equivalent to +32767 and RTD short is equivalent to –32768 when RTDs are monitored via LDP.
RTDWDGMX Maximum winding RTD temperature °C x x x x x
RTDBRGMX Maximum bearing RTD temperature °C x x x x x
RTDAMB Ambient RTD temperature °C x x x x x
RTDOTHMX Other maximum RTD temperature °C x x x x x
RTD1 to RTD12
6
RTD1 temperature to RTD12 temperature °C xxxx x x
THRL1 to THRL3 Operating quantity thermal level memory from
element 1 to element 3
pu xxxx x x
THIEQ1 to THIEQ3 Operating quantity equivalent current from
element 1 to element 3
pu xxxx x x
THTCU1 to THTCU3 Thermal capacity used from element 1 to
element 3
% xxxx x x
THTRIP1 to THTRIP3 Time before thermal element trips from
element 1 to element 3
s xxxx x x
THRLS1 to THRLS3 Time before thermal element releases from
element 1 to element 3
s xxxx x x
Analog Input Metering
AI301 to AI308 Analog inputs for an analog card in SlotC xxxx x x
AI401 to AI408 Analog inputs for an analog card in SlotD xxxx x x
AI501 to AI508 Analog inputs for an analog card in SlotE xxxx x x
Energy Metering
Note7: This Analog Quantity is not available for FMR.
EM_LRDH Energy last reset date/time high word x
7
EM_LRDM Energy last reset date/time middle word x
7
EM_LRDL Energy last reset date/time low word x
7
MWH3PI Three-phase real energy IN MWh pri xxxx x x
MWH3PO Three-phase real energy OUT MWh pri xxxx x x
MVARH3PI Three-phase reactive energy IN MVARh prixxxx x x
MVARH3PO Three-phase reactive energy OUT MVARh prixxxx x x
MVAH3P Three-phase apparent energy MVAh pri xxxx x x
Table L.1 Analog Quantities (Sheet 4 of 8)
Name Description Units
Display Points
SELOGIC
Load Profile
DNP3/Fast Message Read/
IEC 60870-5-103
Modbus
Fast Meter
IEC 61850
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