PSPCL trips on power lines, units shut | punjab | Hindustan Times
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PSPCL trips on power lines, units shut

Nothing seems to be going right for PSPCL this summer. The corporation got a high-voltage shock on Monday midnight when all four units of Guru Hargobind Thermal-power plant at Lehra Mohabbat and the two functional units of Guru Nanak Dev thermal-energy plant at Bathinda tripped.

punjab Updated: Aug 08, 2012 12:48 IST
Kamaldeep Singh Brar

Nothing seems to be going right for Punjab State Power Corporation Limited (PSPCL) this summer.


Struggling to meet the demand for electricity, the corporation got a high-voltage shock on Monday midnight when all four units of Guru Hargobind Thermal-power plant at Lehra Mohabbat and the two functional units of Guru Nanak Dev thermal-energy plant at Bathinda tripped.

Two high-voltage (220-kilovolt) power-supply lines, Dhuri-Malerkotla and Moga-Sadik, tripped at 12.30 on Monday, leading to the breakdown. "One of the three conductors of the Malerkotla-Dhuri line split at some point," said CS Mann, engineer-in-chief, protection and maintenance, Transco. "The conductor of the Moga-Sadik line failed next. The first line is 10 km from Dhuri, and the other is near Moga."

"The Moga-Sadik line is expected to be restored in the evening. The Malerkotla-Dhuri link will take time to recover, as the replacement conductor has to be carried through paddy fields in rain," said Mann. Thanks to boiler leakage, unit 3 of the Lehra Mohabbat plant was shut since Monday already.

The other three units that tripped last night resumed operation between 2.45am and 3.15am, within three hours of the shutdown. At Bathinda, the engineers managed to restart only one unit by 2.23am on Tuesday. Unit 2 suffered infrastructure loss because of the failure, as its boiler leaked. Its restart is expected by Wednesday morning.

The sudden tripping of lines made the PSPCL lose crores of rupees, and created a huge shortage of power again after the recent grid failures. The 250-megawatt unit 3 at Lehra Mohabbat is not producing power since Monday afternoon, and 110-MW unit 2 in Bathinda is also out of order since Monday night after the tripping.

"Unit 2 will be first to restart normally by Wednesday morning," said HS Sandhu, chief engineer of the Bathinda plant. "We expect to synchronies unit 3 at half its capacity towards late Tuesday." Unit 3 and 4 are shut for renovation.