Product Details

TEV Partial Discharge Tester Functional Features

• Built-in imported ultrasonic sensor; electrical faults generate ultrasonic waves at the fault point. In ultrasonic mode, the partial discharge ultrasonic signals are heard through headphones to scan an area by checking for leaks. Various characteristic vibration sounds, pops, and hums can be associated with different faults.


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


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


• In Transient Earth Voltage (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 simple to use and equipped with an external high-fidelity noise-reducing headphone.


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  EV Partial Discharge Tester Safety Precautions

  
  
  

  The handheld TEVPartial Discharge Tester is used for the detection and evaluation of insulation status in 3-35kV medium and high voltage switchgear and ring main units. When using this device, please note the following precautions:
  
  (1) Use indoors at a temperature of -20°C to 50°C, with relative humidity not exceeding 80%.
  
  (2) Keep away from flammable and explosive dangerous goods.
  
  (3) To prevent interference or leakage accidents, turn off the power switch when charging.
  
  (4) If liquid or corrosive substances come into contact with the instrument, turn it off immediately and have it handled by our after-sales service personnel.
  
  (5) Do not disassemble the main unit or any accessories; if necessary, please have our after-sales service personnel disassemble them.

  
  
  

  Instrument Configuration List

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  No.	Name	Quantity
  1	Partial Discharge Tester Main Unit	1 unit
  2	TEV Sensor (Built-in)	1 piece
  3	Ultrasonic Sensor (Built-in)	1 piece
  4	Charger	1 piece
  5	Headphones	1 pair
  6	Operation Manual	1 copy
  7	Certificate of Conformity / Warranty Card	1 copy