PROVA 21 - Operating Instructions: Balanced 3-Phase Power Quality; Balanced 3-Phase AC Power Quality Measurement

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III.4 Measurement of the Balanced 3 Phase AC Power Quality (21, 23)
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a. Connect the black test lead to the voltage L3, and connect the red test lead to
L1.
b. Clamp on one of the wire to L2. The current should flow from the front of the
tester to the side of the battery cover.
c. Select proper Watt range (W-mA or W-A).
d. Press the
▲
button to select balanced 3Φ. A symbol of “3Φ” will be shown in
LCD.
e. The value of mW, W, or KW will be displayed in LCD. The unit of watt is
automatically scaled.
NOTE: Users can also obtain the measurements of VA, VAR, PF, Phase Angle,
HP, and energy (WH) for balanced 3Φ power system. The operations are the same
as the measurements for the single-phase power system.