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Range

Commissioning of:

1. Electrical installation and equipment up to and over 1000V

 

  • resistance of protecive earthing systems
  • insulation resistance
  • resistance of lightning protective earthing systems
  • power frequency withstand tests
  • transition resistanece in contact systems

2. Electrical installation and the equipment next to 1000 V

  • Ipmedance of phase-protective conductor circuit
  • Earth leakage circuit breakers

3. Safety equipment: isolate bars (manipulation, measuring, for portable grounding); isolated clamps; voltage detectors; current clamps; protective gloves, protective boots and galoshes; dielectric carpets and paths.

  • electrical insulation strenght by increased AC test voltage

4.Cable power lines up to 20 kV

  • insulation resistance
  • electrical insulation strenght by increased AC test voltage

5. Capacitor installation up to and over 1000V

  • current value and uniformity of the load of the invidual phases
  • no housing connectionabsence of body compound

6. Transformers up to and including 400kv

  • insulation Resistance
  • power frequency withstand tests
  • active winding resistance
  • transformer oil – breakdown voltage
  • transformer ratio
  • polarity check

7. Relay protection devices, electrical automation, telemechanics and secondary circuits

  • check of relay protection settings (direct or alternative(start up and return) current, direct or alternative(start up and return) voltage, time delay, impedance(start up and return))
  • functional test (correct, incorrect act or functioning fail of the device)

8. Electric motors for direct and alternative current

  • insulation resistance
  • HV withstand tests
  • active winding resistance (stators and rotors)
  • power and idle losses

9. Power measurement transformers up to 400kV

  • Capacitance and dissipation factor (tgδ)
  • COMPLETE LIST COULD BE FOUND HERE

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