1. Multi-functional Partial Discharge Tester is suitable for partial discharge patrol and positioning of main transformers, GIS, and cables, with contact measurement; additionally configured with TEV sensor, HFCT sensor for multi-angle testing of the specimen;
2. Compact structure, handheld, tool-type, small size, light weight, high degree of automation, simple and practical;
4. The sensor is stethoscope-type, featuring large contact area, strong anti-interference ability, high sensitivity, accurate measurement, easy operation, safe and reliable, etc.;
5. Simple to use, no complex settings required, ready to use upon startup.
Technical Parameters:
1. Composite TEV Measurement
Sensor: Capacitive
Measurement Range: 0～60dBmV
Resolution: 1dB
Error: ±1dB
Detection Bandwidth: 5~70MHz
Max Pulses/Cycle: 655
Threshold Adjustment Range: 3～57dB
2. High Frequency Current Transformer
Detection Band: 10kHz～30MHz
Signal Transmission: 50Ω Coaxial Cable
Detection Sensitivity: 10pC
3. Ultrasonic Measurement
Measurement Range: -7dBμV～68 dBμV
Resolution: 1dB
Error: ±1dB
Sensor Sensitivity: -65dB (0dB = 1volt/μbar SPL)
Sensor Center Frequency: 20～50kHz
Sensor Diameter: Not greater than 50mm
Heterodyne Frequency: 38.4kHz
4. UHF Sensor
Detection Band: 300MHz～1.5GHz
Signal Transmission: 50Ω Coaxial Cable
Detection Sensitivity: 1dB
Gain: ＞65dbm
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
