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UMG 806
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Alarm element (designation/formula variable)
Unit of the rele-
vant alarm value
Voltage
Ua (V1), Ub (V2), Uc (V3), Un (Vn),
Uab (V12), Ubc (V23), Uca (V31), Ul (VI - any mains voltage)
0.1 V
Una (VLN avg - average mains voltage),
Ula (VLL avg - average phase voltage)
Current
Ia (I1), Ib (I2), Ic (3), I (Ii - any phase current)
0.001 A
I avg (average current value)
0.001 A
I n (leakage current)
0.001 A
Active power
P
1 W
Reactive power
Q
1 var
Apparent power
S
1 VA
Power factor
PF
0.001
Frequency
F
0.01 Hz
Voltage/current unbalance
U unb, I unb
0.01%
Harmonic load of voltage and
current
THD U, THD I
Alarm status
Alarm status 1, alarm status 0
Digital inputs
DIX_1
(
Alarm when any digital input iS equals 1)
--
DIX_0 (Alarm when any digital input iS equals 0)
DI1_1, DI2_1, DI3_1, DI4_1 (Alarm when the respective digital input equals
1)
DI1_0, DI2_0, DI3_0, DI4_0 (Alarm when the respective digital input is 0)
13.8.4 Alarm elements and units of the alarm limit values
Содержание UMG 806
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