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32
Power Quality Analyzer PowerPad
®
IV Model 8345
Distribution system
Network
Electrical Diagram
Three-phase
4 wires
(L1, L2, L3, and N)
Indicate which voltages will
be connected: all 3 voltages
(3V) or only 2 (V1V2, V2V3, or
V3V1).
If you connect only 2
voltages, the 3 phases must
be balanced (2½ elements
method).
Three-phase
4 wires
with neutral
without earth
L1
L2
L3
N
Three-phase
4 wires
in open “high leg” delta
with neutral
without earth
L1
L2
L3
N
Three-phase
4 wires
in “high leg” delta
with neutral
without earth
L1
L2
L3
N
Three-phase
5 wires
(L1, L2, L3, N, and earth)
Indicate which voltages will be
connected: all 3 (3V) or only 2
(V1V2, V2V3, or V3V1).
If you connect only 2
voltages, the 3 phases must
be balanced (2½ elements
method).
Three-phase
5 wires
in star
with neutral and earth
L1
L2
L3
N
GND
Three-phase
5 wires
in open “high leg” delta
with neutral and earth
L1
L2
L3
N
GND
Three-phase
5 wires
in delta
with neutral and earth
L1
L2
L3
N
GND