High Voltage Switchgears
Sigma Power offers a wide range of maintenance and testing services for GIS and AIS switchgear up to 230kV.
- Contact Resistance Test
- Insulation Resistance Test
- Minimum Pick-up Voltage Test
- Breaker timing Tests
- Breaker trip operation through the protective device
- Power and dissipation factor on each pole
- SF6 purity test
- SF6 Leakage test
- SF6 Pressure test
- Dew Point test
- Interlock
- Vacuum Bottle Integrity
- Auxiliary feature test
- Earth switch testing
- Busbar Inspection
- Busbar Hipot testing
- Busbar tightness check
Instrument Transformers (CT/VT)
- Insulation resistance
- Polarity
- Ratio verification
- Excitation curve
- Secondary circuit test
- Burden test
- Power factor and dissipation factor
- NGR Impedance test
A Tasmea Company
www.tasmea.com.au