AC test systems consist of modular transformer units that can be cascaded up to three stages to get higher voltages ranging up to 1200 kV. Our AC test systems can be provided with low or high power ratings.

Small AC test systems with low power are mainly suitable for performing dielectric tests, whereas large systems with high power can be used to carry out additional tests such as high voltage withstand tests.


  • 1- 400 kV high voltage laboratory transformer without partial discharge
  • PD Free High Voltage Test Transformer 400kV
  • Voltage range: 400kV
  • Power range: 800kVA
  • Current range: 2A
  • Frequency: 50Hz
  • Partial discharge level of 10 pC< at 400Kv
  • Employer: Zanjan Iran Transfo Co.
  • 2. AC Power Frequency Test 600 kV
  • Nominal voltage: 600kV
  • Nominal power: 200kVA
  • Nominal current: 330mA
  • Frequency: 50Hz
  • Employer: Iran Switch Co.
  • 3- AC power frequency 800 kV test system
  • technical specification:
  • Nominal voltage: 800kV
  • Nominal power: 800kVA
  • Nominal Current: 1A
  • Frequency: 50Hz
  • Employer: Niroo Research Center
  • 4- AC power frequency test 200 kV frequency
  • Nominal voltage: 200kV
  • Nominal power: 100kVA
  • Nominal current: 500mA
  • Frequency: 50 Hz
  • Short voltage connection voltage ≈ 12
  • Employer: Business Services Companies, Iran Transfo Zanjan.
  • 5- AC power test 400 kV frequency test Technical Specifications:
  • Nominal rated voltage: 400kV
  • Nominal power: 800kVA
  • Nominal current: 2A
  • Frequency: 50Hz
  • Employer: University of Science and Technology Jihad
  • 6- AC Power Frequency Testing System 300 KV
  • Nominal voltage: 300kV
  • Nominal power: 200kVA
  • Nominal current: 660mA
  • Frequency: 50Hz
  • Short voltage connection voltage ≈13
  • Employer: Teko Padazar Co.

Products Catalogues
High Voltage Engeneering Center
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5 KV Hipot

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Partial discharge

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Products test

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