FLUKE 1775/BASIC User Manual for the Fluke 1775/BASIC Three-Phase Power Quality Analyzer, 8 kV

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3 Phase Power Quality Analyzer

First Measurements

At the measurement site, look at the information in the panel and the rating plates on the

machines. Based on knowledge of the electrical supply in the facility, determine the

configuration. The example below performs a measurement on a three-phase wye system.

To s e t u p t h e A n a l y z e r :

1. Connect the Analyzer to mains power. The Analyzer starts and shows the Main Menu.

Note

See Measurement Line Power Source if you want to power the Analyzer from the

measurement line.

2. In the Main Menu, select the measurement mode as PQ Meter.

The connection verification display shows the voltage, current and frequency readings.

3. Push To p o l o g y to configure the three-phase wye and the nominal voltage.

4. Use the cable end with the short fan-out of the 3-phase + N voltage test lead and connect

A/L1, B/L2, C/L3, and N into the Analyzer.

5. Connect the voltage test leads to phase A/L1, B/L2, C/L3, and Neutral.

6. Connect the green test lead into the Analyzer.

7. Connect the green test lead to a good ground source, such as a bare, uncoated part of the

cabinet. Ideally, a grounding lug in the panel.

8. With all of the connections done, check that the voltages for phases A/L1, B/L2, C/L3, and

Neutral to Ground are as expected.

9. Connect the Thin-Flexi current probes to the Analyzer:

 Phase A/L1 current probe into the phase A/L1 input jack

 Phase B/L2 current probe into the phase B/L2 input jack

 Phase C/L3 current probe into the phase C/L3 input jack

 N (neutral current) probe into the N input jack

To measure the system:

1. Apply the iFlex Probes to the wires in the electrical panel. Make sure the arrow on the probe

points to the load.

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FLUKE 1775/BASIC Three-Phase Power Quality Analyzer, 8 kV