Project Description

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This test system solution was designed for routine tests of 1-phase and 3-phase transformers and chokes according to IEC60076 and IEC61558.
It is optimized for testing high power transformers or high current chokes with a rated voltage up to 1kV.

  • For Transformers up to 2000kVA

  • Output Voltage up to 1500V

  • Output Current up to 3000A


For an efficient use in industrial production a test system needs the ability to adapt to test requirements of a broad product range while keeping the testing process easy, quick and safe.
Here the special requirement is the capability to do power choke tests with up to 3000A, but to keep the system still flexible and usable for small products.
Of course the operator safety is very important, as high power electrical tests are always very dangerous.

Our Solution

Our inverter power supply solution provides all required test voltages with variable frequency. 14 power ranges are available for optimised adaption to the variours test requirements of high power transformer and chokes.
The automatic switching of the measuring points and the remote control of the power supply allow complete testing with single connection and increase productivity and safety. This system is fully equipped with a safety control unit, e-stop buttons, safety doors, safety fence  and a light curtain for test area according to EN 50191 to provide maximum safety for the operators during every day work.

Transformer and Choke Test Steps

  • No Load

  • Short Circuit

  • Voltage Ratio and Phase Displacement

  • Induced AC Withstand Voltage

  • Inductance

  • Surge Voltage

  • Winding Resistance

  • High Pot (AC Withstand Voltage)

  • Insulation Resistance

  • Protective Earth

  • Temperature Sensor

Technical Specifications TTS
Power Supply 3-phase Inverter, voltage and current regulation, 14 power ranges
200kVA, 15-400Hz, 0-1500V, 0-3000A
Power Measurement 4-channel precision power meter, basic accuracy 0.1%, voltage measurement up to 1500 VAC
Switching Matrix 24 measuring points 6 kV, 1 A, 10 measuring points 6 kV, 30 A
Winding Resistance 4-wire measurement, current 0-20A, basic accuracy 0.1%
High Voltage 0 … 6kV AC
Insulation Resistance Test Voltage 500V / 1000V
Protective Earth Test Current 10-30A
Surge Voltage 300 … 6000V
Dimensions 6800x2100x600mm (WxHxD), Weight 5100kg
  • Programmable Safety Control for easy reconfiguration
  • Complete Safety Solution provided by Solfas
  • Workplace layout according to production requirements
  • Open for integration of further devices
  • 2 Safety Doors
  • 5 Emergency Stop Buttons
  • 4 Red / Green Warning Lamps
  • 1 Light curtain
  • 3 Independent Interlock loops
  • Access Control with Key Switch
  • Monitored Start with separate Button
  • Ultra-flexible high current power test leads with safety plugs for easy connection
  • Test leads for primary and all secondary-side connections

We support you and take care of your product

We also help you after buying our products. Whether maintenance, support, repair or calibration, it does not matter, we care about you and your products.

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