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You can also connect to the circuit under measurement by placing a terminal block near the
WT332E/WT333E and connecting the power cables and voltage measurement cables to the
terminal block.
T
S
R
Wiring Procedure with the Three-Voltage, Three-Current Method
(3V3A)
You can configure the wiring for the three-voltage, three-current method (3V3A) by adding the following
wiring to the wiring for a three-phase, three-wire system.
Wiring to the Current Input Terminals
In the aforementioned steps 1 and 2, connect the current input terminals of element 2 to the
S-phase power cable.
Wiring to the Voltage Input Terminals
In the aforementioned steps 3 to 5, connect the voltage input terminals of element 2 so as to
measure the line voltage between phase R and phase T.
The result of wiring the three-phase, three-wire system shown in the figure above is for the three-
voltage, three-current method (3V3A) is shown below.
T
S
R
IM WT310E-02EN
2.9 Wiring the Circuit under Measurement for Direct Input
Terminal block
R
S
T
Terminal block
R
S
T
S
R
T
R
S
T
SOURCE
±
V
±
V
±
V
R
S
T
R
S
T
C
±
I1
V
U1
R
±
N
V
T
S
U2
±
C
±
I2
U3
I3
C
±
1
2
3
4
5
6
7
App
Index
LOAD
±
V
2-37
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