Fluke 1744 - Manual (Page 30)

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 2 3 2 S R IN I3 I2 I1 V3 V2 V1
CURRENT INPUT 10 VRMS MAX L1/A
L2 / B
L3 / C
N
5 VA 45 - 65 Hz
MEASUREMENT INPUT SUPPLY INPUT
830 VRMS MAX CAT 600 V CAT
300 V CAT
100 - 350 V
660 V MAX
88 - 660 V
egb006.eps
Figure 7. Measuring 3-Phase Voltages in a 3-Wire (Delta) System with
Three Voltage Converters