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report to the team or special responsibility, shorten the
inspection cycle, and cut off the power for maintenance as
soon as possible
The switchgear reading is 10dB higher than the background
level, and the reading is greater than 20dB absolute value,
which is 20dB higher than the background
It is likely that there is internal discharge activity in the
switchgear. It is recommended to use a partial discharge
locator or partial discharge monitor for further inspection
The above description is based on the operation specifications of the switchgear.
The insulation degree of the switchgear can be judged by readings. The
operation status of the switchgear can also be analyzed through the map.
According to the map, the insulation status of the device can be more
comprehensively understood, such as the partial discharge The phase analysis,
the number of discharge pulse groups, etc., the spectrum analysis method is
suitable for all high-voltage equipment, including switchgear. The following
describes the ZXPD-200L's spectrum function in detail.
3.3.3 Atlas mode
Time domain signal waveform and PRPD pattern
ZXPD-200L can provide time domain signal waveform, PRPD map and PRPS
map. ZXPD-200L displays the time domain signal waveform and PRPD phase
map by default after booting, as shown in the following figure:
The upper part of this interface is the time-domain signal waveform area, which
