Testing and Comissioning of HV Switchyard

Electrical Switchgear Testing

Relay Testing

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Retro Fitting

Successful replacement of old Protective relays (Electromechanical, Numerical) with new microprocessor based relays (ABB make REF series) In various petrochemical plants

- Tan Delta
- Magnetizing Current
- Magnetic Balance
- Vector Group
- IR/PI
- Ratio
- Winding Resistance
- CRM
- REF Scheme
- SFRA
- Differential Scheme

- Tan Delta
- Partial Discharge Test
- Ratio/Polarity
- Knee Point
- IR/PI
- Burden Test
- %Error Curve

- Manual 'ON' and 'OFF' operation
- Contact Resistance
- Insulation Resistance
- Opening Time
- Closing Time
- Close to Open Time(HT Breaker)
- Vacuum Bottle Level (HV Test)
- DCRM

- Insulation Resistance Test
- Bus Bar Resistance (With Joint)
- Bus Bar High Voltage

- Cable HI Pot (HV Test)

- HT Breaker Servicing
- LT Breaker Servicing
- Bus Bar Tightness
- Transformer Maintenance
- HT/LT Panel Wiring
Location: 11/97, Gayatrinagar, Charada, Mansa, Dist: Gandhinagar, Gujarat-382810
Website: www.jnenergy.com
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