Glossary Of Abbreviations - LEGRAND EMDX3 Manuel D'installation

• Glossary of abbreviations

P Total active power
VAr Total reactive power
PF Power factor
Power factor (lagging)
Power factor (leading)
FrEq Frequency
A1, A2, A3 Current I1, I2, I3
k Kilo (e.g. : kA = kilo amps)
M Mega (e.g. : MA = mega amps)
ALM1 ... ALM4 Alarm outputs nos. 1 to 4
SP Trheshol value
P1 ,P2, P3 Ative power P1, P2, P3
VAr1, VAr2, VAr3 Reactive power Q1, Q2, Q3
P M Mean value Total active power
VArM Mean value Total reactive power
CUrM Mean value Current
tMP1 External sensor temperature 1
tMP2 External sensor temperature 2
tYP1 ... tYP4 Output 1 to 4 type
U12, U23, U31 Phase-to-phase voltage U12, U23, U31
U1, U2, U3 Phase-to-neutral voltage V1, V2, V3
nC Relay normally closed
nO Relay normally open
rMtb Relay status control via RS 485
rMtt Relay status control via RS 485 with return to unenergised state
Alarm intervention delay time (mode ALrM) or
t On
Timing relay (mode rMtt)
t OF Alarm recovery delay time
hYSt Hysteresis
LOU Alarm on low threshold
high Alarm on high threshold
Inp Pulse count on input "15-16" of the I/O module installed in the slot "C"
2tAr Energy count on 2 Tariffs on input "15-16" of the I/O module installed in the slot "C"
2in/2out module for EMDX premium multifunction meter
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