Dranetz HDPQ-DN-MZP, Quick Reference Manual

Page: 28 / 40

28
3 Phase, Four Wire Wye
Channels A, B, and C are connected to voltage and current inputs. The
neutral is connected to common and is the reference for all three
channels. The figure also includes monitoring the Neutral to Ground
voltage and Neutral currents. Neutral to ground measurements are
important but optional.
CAUTION Connections must be performed in compliance with all
safety requirements applicable to your installation.
*NOTE Connections of the CT leg to ground is recommended,
but not required for proper operation.
Phasor Diagrams
V
A
V
B
0º
120º
V
C
240º
I
A
I
B
0º
120º
I
C
240º
HDPQ-DN-MZP-103