YOKOGAWA WT300E, Руководство пользователя

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2-50
IM WT310E-02EN
Wiring Example of Single-Phase, Two-Wire Systems (1P2W) with a
VT and CT
The following wiring example shows how to configure the wiring to connect to input element 1. To
configure the wiring for other input elements, substitute the numbers in the figures with the appropriate
element numbers.
SOURCE LOAD
L CT VT V
v
SOURCE LOAD
L CT VT V
v
Element 1 Element 1
C
±
± V
C
±
± V
Wiring Example of a Single-Phase, Three-Wire System (1P3W)
with VTs and CTs
The wiring is connected to input elements 1 and 3.
SOURCE
L CT VT V
v
LOAD
L CT VT V
v
N
Element 1 Element 3
C
±
± V
C
±
± V
Wiring Example of a Three-Phase, Three-Wire System (3P3W) with
VTs and CTs
The wiring is connected to input elements 1 and 3. Measure the line voltage using S-phase power as
the reference.
SOURCE
L CT VT V
v
LOAD
L CT VT V
v
S
T
R
Element 1 Element 3
C
±
± V
C
±
± V
2.11 Wiring the Circuit under Measurement When Using a Voltage or Current Transformer