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equipment and phase-C voltage terminal of the instrument. You can view the measurement results
in the "Testing Parameters" screen after done with wiring.
(III) Measurement of waveform display section
1 Purpose for testing
You can view waveform of each parameter, understand the phase relationship between each
parameter (lead or lag), observe distortion situation of waveform, analyze the causes for distortion
generated, and whether the PT and CT are overload through this project.
2 Testing method
You should perform different wiring depending on varies wiring of the device under test:
Perform wiring in accordance with wiring diagram for testing three-phase four-wire devices
if the device is a three-Phase four-wire connection mode one;
Perform wiring in accordance with wiring diagram for testing three-phase three-wire devices
if the device is a three-Phase three-wire connection mode one.
Go to the "Waveform Display" interface for testing after wiring.
(IV) Measurement of spectrum analysis section
1 Purpose for testing
This function is used to display histogram of 1-50 times harmonic content of the parameters
of each phase voltage, each phase current as well as the percentage of content of (1-64 times)
harmonic in each parameter, and total harmonic distortion and other indicators. So that you can
determine whether power quality of this phase voltage or current is good or bad.
2 Testing method
You should perform different wiring depending on varies wiring of the device under test:
Perform wiring in accordance with wiring diagram for testing three-phase four-wire devices
if the device is a three-Phase four-wire connection mode one;
