Test Stands

Laboratory is supplied from 220 kV system using 230/120 kV/kV, 160 MVA autotransformer.

Laboratory's basic testing equipment consists of three short-circuit transformers with parameters per unit:

  • short-circuit power 580 MVA / 5 s;
  • primary voltage 115,5 kV;
  • secondary voltage 1 - 32 kV step 1 kV.

Laboratory also performs tests of HV equipment with 123 kV supply voltage and current up to 2800 A.

 

Short-circuit tests of surge arresters
according to IEC 60099-4

  

 

AC Power Arc Tests of Insulator Sets
according to IEC 61467

              

 

Internal Arc Tests of MV switchgears
according to IEC 62271-200

              

 

Internal Arc Tests of Prefabricated Substations
according to IEC 62271-202

           

 

Dynamic Ability to Withstand Short-Circuit Tests of Distribution Transformers
according to IEC 60076-5 (Oil transformers) and IEC 60076-11 (Dry transformers)

           

 

Mechanical operation tests of Switches, Disconnectors and Earthing Switches
according to IEC 62271-102 and IEC 62271-103

     

 

Short-time withstand current and peak withstand current testsof Disconnectors and Earthing Switches according to IEC 62271-102 and IEC 62271-1

          

 

Short-circuit current tests of Earthing Cables
according to IEC 61230