Combined high voltage and high current test benches

Function :

The test bench simulates extreme working conditions on the object under test to accelerate its electrical ageing.

In most cases, the dielectric strength of the object is tested during the overall test time by the application of high voltage while the injection of high current leads to thermal and mechanical stress due to the succession of heating and cooling cycles.

Parameters :

• Three phased and single phased systems
• High voltage regulation
• HV current threshold
• Number and duty of heating cycles T on / T off
• Current regulation for temperature rising
• Current regulation for temperature stabilization or temperature regulation
• Measurement and temperature regulation on thermocouple input :
  • direct core temperature measurement on “image” loop
  • - core temperature calculation based on jacket temperature measurement

Applications :

• Tests on cables and connectors
• Type tests on low voltage and medium voltage accessories (underground and aerial junctions, etc.)
• Qualification tests on molded derivation kits