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UHF partial discharge detector

WS-CJF-UHF-100

WS-CJF-UHF-100 UHF partial discharge detector relies on electromagnetic wave spatial positioning technology to detect electromagnetic wave signals generated by partial discharge excitation through an omnidirectional UHF sensing antenna.It can receive leaked partial discharge electromagnetic wave signals in space over a wide range (radius 20m), and is used to monitor the operating status of the entire substation/distribution station and cable equipment. The effective monitoring and fault location distance is 5-20 meters.The detection bandwidth is 300MHz ~ 2000MHz, which is a UHF detection method. The bandwidth is better than traditional UHF sensors. The omnidirectional electromagnetic baud high-frequency antenna does not require surface-mounted installation and is open to the environment to be monitored. It is better than traditional ones in operation. The product is safe and does not have any impact on primary equipment.The test results can be viewed on-site through a network cable connected to the host to view real-time monitoring charts (PRPD and PRPS charts). Customers can choose the viewing method.

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Main functions and characteristics

1) Strong anti-interference ability and high precision (5pc);

2) Real-time online monitoring (24 hours), maintenance-free, and operation time can reach 10 years;

3) Highly integrated, simple appearance, strong environmental adaptability, using non-contact omnidirectional electromagnetic wave spatial positioning detection technology, without contacting the equipment, it can achieve 360-degree non-dead-angle monitoring of equipment partial discharge, and the monitoring radius is up to 20 meters.

Technical parameter

1. Shell

Protection level : IP40
2. Power supply

1) Power supply : AC220V±20%.50Hz
2) Power consumption : ≤35W
3. Communication

1) Communication port : LoRa/RS-485
2) Communication protocol : Comply with the "Micropower Wireless Network Communication Protocol for Internet of Things of Power Transmission and Transformation Equipment", "Data Specification for Sensors of Internet of Things of Power Transmission and Transformation Equipment", and Modbus protocol
3) Reporting cycle : The reporting cycle can be configured, with a default of 15 minutes
4. Installation

Screw fixing
5. Data collection

50Hz/100Hz correlation, peak value, average value, alarm value, discharge frequency, partial discharge type
6. Measurement

1) UHF detection bandwidth : 300MHz～2000MHz
2) UHF detection dynamic range : ≥60dB
3) Error value : ±2dBm
4) Measurement range : -80～20dBm
5) Data spectrum : PRPS, cumulative PRPD
6) Power frequency synchronization : Internal synchronization/wireless synchronization
7) Sampling frequency : Support adjustable
7. Work Environment

1) Operating temperature : -45℃~85℃
2) Operating humidity : ≤95%RH
3) Atmospheric pressure : 86kPa~106.0kPa

Size Description

Host : 180mmx280mmx90mm ; Sensor : 290mmx390mmx390mm