Phase Four Wire Wye - Dranetz HDPQ-DN-MVSTR Quick Reference Manual

3 Phase, Four Wire Wye
Channels A, B, and C are connected to the voltage and current inputs.
The neutral is connected to common and is the reference for all three
voltage channels. The figure also includes monitoring the Neutral to
Ground voltage. Neutral to ground measurements are important but
optional.
CAUTION Connections must be performed in compliance with all
safety requirements applicable to your installation.
NOTE Be sure to connect the current probe with the arrow on
the handle pointing towards the load or an erroneous
power reading will result.
Connections of the CT leg to ground is recommended,
but not required for proper operation.
Phasor Diagrams
1 20 º
V
C
0º
V
A
V
B
24 0º
28
HDPQ-DN-MVSTR-103
120º
I
C
0º
I
A
I
B
240º