hager h3+ - Page 43

436LE005550A
Function of the Energy trip unit
3.3 Measurement function
Electrical variable Symbol used
Version
3 P
Version
4 P
Ground RMS (three-phase system
without neutral)
IG X
–
RMS voltage V1N, V2N, V3N
– X
RMS voltage U12, U23, U31
X X
Phase rotation 1,2,3; 1,3,2
X X
Frequency f
X X
In addition, the Energy trip unit calculates the following associated electrical
variables in real-time (every second):
Electrical variable Variable calculation
Version
3 P
Version
4 P
Average RMS current
X X
Maximum instantaneous RMS
current with neutral
– X
Maximum instantaneous RMS
current without neutral
X
-
Minimum instantaneous RMS
current
X X
Average Ph-N RMS voltage
– X
Maximum Ph-N RMS voltage
– X
Minimum Ph-N RMS voltage
– X
Average Ph-Ph RMS voltage
X X
Maximum Ph-Ph RMS voltage
X X
Minimum Ph-Ph RMS voltage
X X