E-7
APPENDIX E/ Common Circuit Connections
Single Phase
Introduction
When making voltage connections to a single phase circuit use channel A differential
inputs as shown below. The figure also shows voltage connection using channel D as a
differential input for measuring neutral to ground voltage. Neutral to ground
measurements are important but optional.
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.
Connection
diagram
Phasor
diagrams
PX5-901
0º
V
A
0º
I
A
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