Megger PQ2000, User Manual

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MPQ2000-UG-EN Rev 8 October 2018
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8
Wiring Diagrams for Demand Recording
Notes on Wiring Diagrams
1. The Power Analyzer records all voltages and currents that are hooked up
providing you have activated channels in the setup. Even though not all channels
may be required for the power configurations on the following pages, you can
connect them to obtain voltage/current recordings, providing you activate the
channel.
2. The vector diagrams shown are for reference and represent the vectors
associated with a balanced resistive load. Reactive currents will rotate the current
vectors clockwise or counterclockwise with respect to the voltages.
3. In the 3-wire configurations, you may select any one wire as a voltage reference,
but you must place current clamps on the remaining two wires.
4. In the 3-wire configurations, the 2-element wattmeter method is used for power
calculations. The third voltage and current can be connected to the Power
Analyzer but will be recorded as RMS data only, providing you activate the
channels.
CAUTION
Inspect all power cords and wires for proper insulation
integrity before connecting to any power source.