Range
Commissioning of:
1. Electrical installation and equipment up to and over 1000V
- protective grounding resistance
- insulation resistance
- lightning protective grounding resistance
- power frequency withstand tests
- contact resistance
2. Electrical installation and the equipment next to 1000 V
- loop impedance – Zs
- 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.
- electric strength of insulation by AC voltage and leakage current and the threshold voltage indication
4.Power cable lines up to 20 kV
- insulation resistance
- power frequency withstand tests
5. Capacitor installation up to and over 1000V
- value of current and evenness of loading of the individual phases
- absence of body compound
- HV withstand tests
6. Voltage transformers up to 35 kV
- insulation Resistance
- power frequency withstand tests
- winding resistance
- transformer oil – breakdown voltage
- transformer ratio
- polarity check
7. Relay protection devices, electrical automation, telemechanics and secondary circuits
- insulation resistance
- 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)
- active resistance
- circuits integrity
8. Electric motors for direct and alternative current
- insulation resistance
- HV withstand tests
- winding resistance (stators and rotors)
- current and losses of idle running motor
9. Power measurement transformers up to 400kV
- Capacitance and dissipation factor (tgδ)
10. Optic cables and fiber optic lines
- Inserted loss from splices, connectors and macro bendings in fiber optic line.
- Total loss (Optic power)
- Optical return loss
- Length of fiber optic line