AC test systems with variable frequency

For on-site testing of transformers

HV-test system for transformer testingAC test systems with variable frequency are used for withstand voltage testing on transformers after they are installed on-site and for purposes of diagnostics in asset management. The test system operates in a frequency range from
40 Hz to 200 Hz and complies with the requirements according to IEC 60076-3. The test object is connected to the test system using a flexible high-voltage connection. The high-voltage reactor features a modular design. Several reactors can be connected in series or parallel to achieve higher test voltages or power. The test system can be transported in a container without taking up much space, or it can be set up on a trailer. 

Application

  • On-site testing of transformers

Benefits

  • Pure sinusoidal voltage at the output
  • Low PD background noise level < 2 pC
  • IEC-compliant frequency range from 40 Hz to 200 Hz
  • Several systems can be connected in series or parallel to increase test voltage and/or power.
  • Quick and easy setup of test system
  • Maintenance-free, no moving parts

Technical parameters/system types