BHEL team arrives for inspection of RTPS unit

Raichur May 22. A team of experts from the Haridwar Division of the Bharat Heavy Electricals Ltd. (BHEL) arrived at Shakthinagar near here today for an inspection of the defunct turbine generator of the first unit of the Raichur Thermal Power Station (RTPS).

The 210-MW unit was shut down last Thursday when its turbine generator failed because of a major technical problem. The RTPS engineers, who conducted a preliminary inspection immediately after the unit was shut down, found that the turbine generator failed as it was aging.

The turbine generator of the unit, which was manufactured, supplied, and installed by BHEL in 1985, had performed at its optimum level. However, the exact reason for its failure will be known only when the BHEL experts conduct a study after dismantling it.

Official sources said that the experts from BHEL, who would camp at the site, might not able to dismantle the turbine generator immediately for inspection as it had to cool down below 100 degrees centigrade. They would have to wait for a few more days, and the work was expected to start next Thursday. Till then, they would examine the functioning of the generator's outer components.

Recently, the Karnataka Power Corporation Ltd. (KPCL) held a meeting with the BHEL officials concerned in Bangalore to discuss the failure of the turbine generator. It was concluded that the generator failed as it was aging. However, it would be made functional after the components were replaced.

Following a suggestion from BHEL, the KPCL has placed with it an order for spares needed for the defunct turbine generator. The KPCL has asked BHEL to start an investigation immediately to find out the faults which led to its shutdown, sources said.

The KPCL has asked the R&D section of BHEL to inspect the components of the boiler and turbine generator (BTG) package of the first unit of the RTPS in cooperation with officials of the Central Power Research Institute (CPRI), Bangalore, to calculate the life of the unit. It plans to conduct research in the case of the second unit of the RTPS (which was commissioned during 1986) when it is shut down for annual maintenance.

Meanwhile, the KPCL has directed the RTPS engineers to take up overhauling of the major components of the first unit during the dismantling and reassembling of the turbine generator by BHEL.

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