Siemens SIMEAS Q80 Operating Instruction page 128

E-52 SIMEAS Q80 7KG8080
3-phase current
3-phase current
3-wire system
Power Quality Recorder SIMEAS Q80 7KG8080, Operating instruction
E50417-B1074-C419-A2, Release 09.02.2011
Terminal Channels
designation displayed
Terminal Channels
designation displayed
3xU, 2xI
U U
L1
U U
L3
N= U
N
U
12
U
23
U
31
I
L1
I
L2
I
L3
Total power of the systems:
3 phases U, 2 phases I
= U Calculation as for ARON-circuit
1 L1
U = leer
2
= U
U is computed
3 L3L
3
L2
= U -N
L1
= N-U
L3
= -
U U
L3 L1
=
I I
1 L1
=
I I
2 L2
=
I I
3 L3
Power computation
Power computation