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Partial discharge monitoring sensor

The company can provide internal and external UHF partial discharge sensors, high-frequency current sensors, ground wave sensors, ultrasonic sensors, etc. according to different voltage levels and structures of GIS, transformers, switch cabinets and other requirements.

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product description

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　　At present, the company's ultra-high-frequency sensors have been used in many domestic UHV projects. In the test of one of the three largest domestic high-level organizations, our company's sensors perform well. Leak detection, insulation, lightning shock, A number of tests such as withstand voltage partial discharge and sensitivity, the test results are superior, and eventually used in the company's domestic UHV project. This is the first time that the company's UHV project has a built-in UHF partial discharge sensor with completely independent intellectual property rights. product.

Test sensitivity test scene map: 3 sensors, the distance is 6.5 meters, 7.5 meters, up to 14 meters.

In the end, all the detection items were passed. The leakage results of the three sensors and the two instruments were zero.

Technical Parameters:
Sensor model	ZY-PDSI-GGIS series	ZY-PDSI-T transformer series	ZY-PDSO external
Detection principle	UHF	UHF	UHF
Minimum signal sensitivity	2PC	2PC	5PC
Frequency Range	0.3-1.5GHZ	0.3-1.5GHZ	0.3-1.5GHZ
Installation method	Built-in	Built-in	External
Connector	N-TYPE	N-TYPE	N-TYPE
Sealing performance	Annual leakage rate is less than 0.1%	Annual leakage rate is less than 0.1%
Special custom	can	can	can
Service life	30 years	30 years	30 years

　　Note: The detection frequency band is within 0.3-1.5GHZ, and the average value of the standing wave ratio of the sensor is less than 2.5.

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