South Bihar Power Distribution Company Ltd has asked Patna Electric Supply Undertaking officials to install AB (air break) switches on all overloaded distribution transformers.
We will install AB switches on all distribution transformers in a phase-wise manner. Officials have been asked to start work in this direction, Bihar State Power (Holding) Company Ltd chairman-cum-managing director Pratyaya Amrit told The Telegraph.
South Bihar Power Distribution Company Ltd (SBPDCL) sources, however, said Patna Electric Supply Undertaking (Pesu) has been asked to identify overloaded distribution transformers and install AB switches in them first.
Pesu chief engineer-cum-general manager SSP Srivastava said: We will install around 1,300 AB switches under restructured accelerated power development and reforms programme (RAPDRP) (Part B) here.
Asked when the AB switches would be installed, Srivastava said: We have to complete a lot of work, including installation of AB switches under RAPDRP by end of June 2015. We will try to complete it as soon as possible.
The RAPDRP scheme involves a major exercise in 64 towns and cities. These include laying of new cables aerial bunched and underground installation of new 33KV and 11KV feeders, setting up additional power sub-stations and capacity augmentation there, installing new poles and distribution transformers, their capacity augmentation, purchase of cable fault locator, AB switch, installation of safety equipment, sources said.
Installation of AB switches in the transformers helps restore power without affecting supply to a vast area. The AB switch disconnects power to a particular transformer. Power to only households that draw power from that transformer is affected and not to the entire sub-station. Over half of the around 4,000 distribution transformers in Patna have AB switches.