Power min asks northern states not to overdraw

Mumbai, Aug 30 | Updated: Aug 31 2006, 05:30am hrs
Alarmed by the low frequency of power, the power ministry has asked the states in the northern power grid not to overdraw. This step has been taken by the ministry to maintain grid discipline and avoid grid collapse.

The ministry, in a recent communication to all states, has asked them to draw power from the grid as per schedule and manage their load commensurate with the availability of power. The ministry noted that overdrawal of power by the northern region states and violation of grid frequency limits (49.0 - 50.5 Hz) during peak periods led to frequency dipping below 49Hz.

The ministry has noted that northern grid frequency dipped below 49.0 Hz for 74.11% in April this year while it was 11.70% in May, 17.81% in June and 28.80% in July.

As per the Indian Electricity Grid Code (IEGC) issued by the Central Electricity Regulatory Commission (CERC), it was binding on all regional constituents to take possible efforts to ensure that the grid frequency always remains within 49.0 - 50.5 Hz band, the range within which steam turbines can operate continuously.

The ministry has instructed states in the northern power grid and the central sector generation and transmission companies to take requisite steps to maintain safety and security of the regional grid.

The ministry, in order to avoid any major grid collapse, has asked the Regional Load Dispatch Centres to regulate the drawal of power by states/union territories from the regional grid as per schedule to ensure safe and secure operation of regional grids.