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corona discharge due to the concentration of the electric field. This type has
many discharge times, small dispersion of discharge amplitude, and uniform
time interval. The initial discharge is usually only at the power frequency
The negative half of the phase appears.
3.3.5 Testing with external sensors
The external sensors that can be connected are as follows:
GAE-40
Transformer ultrasonic
sensor
Used
for
partial
discharge
detection of transformers, GIS,
motors, etc.
Frequency: 40 ~ 110kHz
GCT-3 high frequency
transformer
Used for cable partial discharge
detection
Frequency: 1
~
30MHz
GUHF-2
UHF sensor
Used for GIS partial discharge
detection
Frequency: 300-1500MHz
There are many customized sensors that are not listed here. If you have any
relevant requirements, please contact our company.
The above sensors are connected through the multi-function sensor expansion
port at the bottom of the host. The host will select the sampling channel of the
corresponding frequency according to the different sensor IDs. So far, the
ZXPD-200L host has integrated four channels of different frequencies through
separate sensors. Expansion port connection, truly achieve the purpose of
multi-purpose machine.