YOKOGAWA WT310 User Manual

2-42
IM WT310-02EN
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

YOKOGAWA WT310 Specifications

General

Model	WT310
Category	Digital Power Meter
Current Measurement Range	0.5 mA to 20 A
Weight	Approx. 3.5 kg
Voltage Measurement Range	15 V to 600 V
Frequency Range	100 kHz
Basic Accuracy	0.1%
Power Accuracy	0.1%
Display	LCD
Interfaces	USB, RS-232, GP-IB
Input Elements	1
Dimensions	213 mm x 88 mm x 346 mm