UltraTEV Switchgear Partial Discharge Tester 

UltraTEV Switchgear Partial Discharge TesterFeatures

• Built-in imported ultrasonic sensor; electrical faults generate ultrasonic waves at the fault point. In ultrasonic mode, listen to partial discharge ultrasonic signals through headphones, and scan an area using the leak detection method. Various characteristic vibration sounds, pops, and hums can be associated with different faults.


• Built-in high-precision TEV sensor couples electromagnetic signals generated by partial discharges to identify potential internal discharge fault risks.


• In Ultrasonic Mode, the main interface displays the partial discharge amplitude (dBuv), using yellow, green, and red colors to indicate the severity of partial discharge; the headphone listening volume (Vol) can also be adjusted.


• In Transient Earth Voltage Mode (TEV Mode), the main interface displays the partial discharge amplitude; the number of pulses per power frequency cycle, total pulse count, and discharge intensity level.


• Powered by a rechargeable lithium battery, ensuring continuous operation for more than 6 hours.


• The interface uses a true color LCD with real-time battery level indication; physical membrane keys are easy to use and come with an external high-fidelity noise-canceling headset.


• Available in both Chinese and English versions to meet the needs of different users.

UltraTEV Switchgear Partial Discharge TesterTechnical Specifications

TEV Sensor

Ultrasonic Sensor