JHPD-20, Portable Partial Discharge Tester
  •  JHPD-20, Portable Partial Discharge Tester

JHPD-20, Portable Partial Discharge Tester

 
recommendation index:
Good quality, high sensitivity, high cost performance
Portable design, light weight and complete configuration
Built-in typical partial discharge pattern library
The power supply is set with internal and external synchronization
  • The instrument adopts ultra-high frequency (UHF) and ultrasonic (AE) detection technology, selects high-performance sensors, and cooperates with optimized hardware and software and structure

  • UHF and ultrasonic have good response to GIS and partial discharge such as free metal particle discharge, suspended potentiometer discharge, surface discharge, air gap discharge inside insulating parts, metal tip discharge, etc

  • It is suitable for on-site investigation and use. It is an essential instrument for the operation and maintenance department of substation equipment. It is widely used in power systems and railways

PD signal input level

-80dBm~-20dBm

frequency range

UHF: 300~ 1500MHz, Noise: 300~ 3000MHz, Ultrasonic: 20~ 200kHz

sensitivity

UHF: built-in sensor ≤ 3pC, external sensor ≤ 5pC; ultrasonic: ≤ 40dB

synchronous voltage input level

250V (maximum)

External synchronous output level

0~ 3V (peak)

Number of channels

UHF, ultrasonic can be measured simultaneously or individually


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