Handheld HV Fully Functional Digital Partial Discharge Tester is an instrument used to detect and monitor partial discharge phenomena in equipment or devices. Partial discharge refers to the phenomenon of partial discharge occurring in insulation materials, which may cause equipment damage or malfunction.
Partial discharge testers can help engineers and technicians detect and diagnose partial discharge issues in equipment in a timely manner, thus taking timely measures for repair and prevention. This can improve the reliability and safety of the equipment, and extend its service life.

Composite TEV 

1. measurementSensors: capacitive; 
2. Measurement range: 0-60dBmV;
3. Resolution: 1dB; Error: ± 1dB;
4. Detection bandwidth: 5-70MHz; 
5. Maximum pulse/cycle value: 655;
6. Threshold adjustment range: 3-57dB.

High frequency current transformer

1. Detection frequency band: 10kHz~30MHz； 
2. Signal transmission method: 50 Ω coaxial cable；
3. Detection sensitivity: 10pC

External contact ultrasonic sensor

1. Measurement range: -7dB μ V~68 dB μ V; 
2. Resolution: 1dB;Error: ± 1dB; 
3. Sensor sensitivity: -65dB (0dB=1volt)/ μ Bar effective value SPL;
4. Sensor center frequency: 20-50kHz; 
5. Sensor diameter: not greater than 50mm;
6. Heterodyne frequency: 38.4kHz.

External handheld non-contact ultrasonic concentrator

1. Effective acceptance distance: 30m; Sensor center frequency: 40 kHz;
2. Sensor diameter: 16mm; Parabolic reflector outer diameter: 275mm;
3. Parabolic reflector standard diameter: 250mm; 
4. Weight: 0.6 kg;

Ultra-high frequency sensor

1. Detection frequency band: 300MHz~1.5GHz ；
2. Signal transmission method: 50 Ω coaxial ；
3. cableDetection sensitivity: 1dB gain:>65dbm

1. The system adopts multi-level detection and frequency reduction technology to reduce the frequency of discharge signals, and uses high-speed AD conversion circuits to digitize the signals. 
2. The reliability of detection data is ensured through interference signal processing methods such as digital signal processing and adaptive filtering.By collecting different signals generated by internal partial discharge of different high-voltage equipment, the operating status of the equipment can be quickly detected with electricity.
3. This instrument can be installed and tested while the equipment is in operation, without any impact on the normal operation of the equipment.

Handheld HV Fully Functional Digital Partial Discharge Tester is an instrument used to detect and monitor partial discharge phenomena in equipment or devices. Partial discharge refers to the phenomenon of partial discharge occurring in insulation materials, which may cause equipment damage or malfunction.
Partial discharge testers can help engineers and technicians detect and diagnose partial discharge issues in equipment in a timely manner, thus taking timely measures for repair and prevention. This can improve the reliability and safety of the equipment, and extend its service life.