Procedures for Testing with the DX Host
megger.com 91
PD Data Reporting–Three-Phase Coil Mode
Partial discharge tests are reported differently depending on whether the test was being
conducted in single-coil mode or three-phase coil mode.
In three-phase coil mode, results are reported in two ways. The first report is the normal surge
report with the PD data included. The waveform displayed is the last waveform captured during
the testing process. The partial discharge signal is overlaid on the surge waveform and displayed
with the resolution used during the preceding Surge test.
Figure 100. PD three-phase report. PD data overlaid on surge waveform.
The values for PDIV, RPDIV, RPDEV, and PDEV are indicated for each phase in the table at the top
center portion of the display.
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