2-25
IM WT310-02EN
Making Preparations for Measurements
Wiring Example with the Three-Voltage, Three-Current Method
(3V3A)
Applies to the WT333.
The wiring is connected to input elements 1, 2, and 3.
SOURCE
LOAD
I1
±C
±
I3
±
C
U1
±
V
U3
V
R
N
ST
SOURCE
Element 1
(V1, A1)
R
S
T
Element 2
(V2, A2)
LOAD
Element 3
(V3, A3)
U2
±
V
I2
±C
C
±
±
V
C
±
±
V
C
±
±
V
Note
For details about the relationship between the wiring system and how measured and computed values are
determined, see appendix 1, “Symbols and Determination of Measurement Functions.”
2.9 Wiring the Circuit under Measurement for Direct Input
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