YOKOGAWA WT332E User Manual page 82

2.11 Wiring the Circuit under Measurement When Using a Voltage or Current Transformer
Connecting to the WT310E/WT310EH
In the wiring examples that follow, the WT310E/WT310EH input elements, voltage input terminals, and
current input terminals are simplified as shown in the following figure.
WT310E/WT310EH
Wiring Example
The following figures show how to connect to the WT310E/WT310EH.
VT and CT
SOURCE
Note
Some CTs (including through types) require load resistance and power supplies. Check your CT's manual.
2-48
LOAD
L CT V
v
±
C
V
±
Input element
Current input Voltage input
terminals terminals
±
C
VT and pass-through CT
SOURCE
Pass-through CT
VT
±
C
VT and Clamp-type Current Sensor
That Outputs Current
SOURCE
Clamp-type current
sensor that outputs
current
±
C
V
±
LOAD
VT
V
v
V
±
LOAD
VT
V
v
V
±
IM WT310E-02EN