Speedy action on power faults now

NEW DELHI, MARCH 24. Delhiites can now look forward to speedy rectification of power faults in their areas. Both the private power distribution companies -- NDPL and BSES -- are setting up "Supervisory Control And Data Acquisition" (SCADA) systems that would automatically inform the control rooms about power faults, saving crucial time and helping fast restoration work.

Be it tripping of line, feeder breakdown, cable fault or burnt transformer, the state-of-the-art SCADA system will inform the main control room about the fault within 10 minutes, alerting the field staff to get on with the job without losing any time. Both the companies would be able to monitor the entire power distribution system of the Capital from their control rooms by just logging on to network computers.

According to a senior NDPL official, SCADA system would be the cornerstone of the automation projects underway in the company. The system would be used for remote-controlled operations of all NDPL grid stations from a central location. The project has been designed to optimise operations of NDPL's distribution system that would further add to the reliability and quality of power supply in their operation areas of North and North-West Delhi by considerable reducing outage time, he said, adding that SCADA system would be fully implemented in the NDPL by January next year. At present five of NDPL's automated grid stations are running on micro SCADA system.

Today, SCADA systems are being used by power utilities across the world to deliver power in an efficient, reliable and safe manner. The system is connected via fibre optic cables that help in efficient designing, planning, monitoring and control of the network electronically from a central location. It will also control 11 kV distribution systems by means of "distribution management system" functionalities like fault isolation and restoration.

The key features of the hi-tech system are that it enables centralised supervision and monitoring of the distribution network at 33 kV and above and also select portions of the 11 kV network besides assisting in automatic selection of remote controls for load shedding and monitoring of demand. Its main advantages are that it sends information about any fault within seconds to support other actions, resulting in faster restoration in case of any fault.

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