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Power Quality Logger
Using the Logger
21
Connections for Medium-Voltage Networks
In a 3-phase 3-wire (Delta) system with three separate voltage converters and
three current transformers, the Logger can measure phase-phase (P-P, Delta) or
phase-N (P-N, Wye). See Figure 7.
Supply
L1
L2
L3
N
L1
L1
L2
L2
L3
L3
POWER LOGGER
1743
START
STOP
POWER
232SR
I
N
I
3
I
2
I
1
V
3
V
2
V
1
CURRENT INPUT
10V
RMS
MAX
L
1
/A
L
2
/B
L
3
/C
N
5VA
45-65 Hz
MEASUREMENT INPUT
SUPPLY INPUT
830V
RMS
MAX CAT
600VCAT
300V CAT
100-350V
660V MAX
88-660V
egb006.eps
Figure 7. Measuring 3-Phase Voltages in a 3-Wire (Delta) System with
Three Voltage Converters