Glossary Of Abbreviations - LEGRAND EMDX3 Manuel D'installation

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• 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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