by DiaNuke.org |
Train system disrupted during the world's biggest power outage in India yesterday
M G Devasahayam
[Mr. Devasahayam is a retired IAS and former chief of Haryana State Electricity Board]
The biggest power outage in history struck 600 million people in India on Tuesday as three grids collapsed one after the other around 1pm.
National power grid is an interconnected network of transmission lines and sub-stations hooked on to generating stations on the one hand and load centres (or distribution companies) on the other. The generating stations supply electricity to the grid through the transmission lines. The load centres then draw the power from the lines and send it to the end-consumers
A delicate balance between generation and load must be maintained at all times to prevent a failure.
India has five-Northern, eastern, northeastern, southern and western-power grids. The state-owned Power Grid Corporation, which operates more than 95,000 circuit kilometre transmission lines, runs the grids. Of these, the northern, eastern and the northeastern grids collapsed on Tuesday.
A grid collapses if there is excess withdrawal of power by member states or oversupply by the generating unit. It has nothing to do with installed capacity or quantum of power generated.
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