HIGH VOLTAGE CIRCUIT BREAKER


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HIGH VOLTAGE CIRCUIT BREAKER
Yellaiah Babu B. High voltage circuit breaker technology has changed radically in the last 15 years. Most utility systems utilise a combination of bulk oil, minimum oil, vacuum, air blast, SF6 two-pressure, and SF6 single-pressure circuit breakers. The SF6 single-pressure system circuit breaker has become the current ‘state of the art’ technology at transmission voltages. Further improvements of this single-pressure version are being introduced with thermal assisted arc quenching, in order to facilitate reduction in operating energy requirements leading to cost reduction and reliability improvement. Integration of various sub-station equipmen…
Citation
Bharat Heavy Electricals Limited: Handbook of Switchgears. HIGH VOLTAGE CIRCUIT BREAKER, Chapter (McGraw-Hill Professional, 2007), AccessEngineering Export