XD79 Automatic Detection Device for Power Transformer

XD79 Automatic Detection Device for Power Transformer

The device has the ability to automatically climb and walk,the device is used for power transformer power outage routine test items to do automated testing.Its characteristic are,First:which is characterized by dielectric loss, insulation resistance, DC resistance, tap-changer switching characteristics, short circuit impedance and variable ratio of six test items are concentrated in an instrument,so that the instrument function, test power and test lead height fusion.Field test, just start wiring once, at the end of unplugging wiring once,the test system automatically completes all or part of the above test items.Second:the device is remotely controlled by the staff,automatic loading and unloading, different detection sites to move, without manual handling, reduce labor, improve detection efficiency.

Test items

  • Insulation resistance:all winding insulation resistance,all the tap of transformer bushing to earth insulation resistance.
  • Dielectric loss:all the winding dielectric loss and capacitance,all the casing dielectric loss and capacitance.
  • DC resistance:all Winding DC Resistance.
  • Load switch:transition resistance, switching time, switching waveform.
  • Short circuit impedance :all winding short-circuit impedance, short-circuit reactance and leakage inductance.
  • Variable ratio:the voltage ratio of all the taps of the windings, and the group of transformers.


  • High efficiency: wiring once, a key operation, the main transformer test automatically.
  • High accuracy: the overall accuracy is higher than the individual instrument.
  • High reliability:high product design reliability, failure rate of less than 1 ‰.
  • High safety: all accessible high pressure parts are isolated with insulating material.
  • Integrity: detection host and accessories are placed on the car platform.
  • Mobility: with 360 ° flexible mobile function and all-directional touch protection.
  • On and off: with automatic climbing, walking ability, can easily up and down most of the power sector operating vehicles.

Operation area

Wiring area

Special winding disk

Transformer field test

Automatically get on and off

step 1

step 2

step 3

step 4

step 5

step 6

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