Vacuum Circuit Breaker

Vacuum Circuit Breaker: Although the advantages of interrupting the arc in a vacuum were recognized as early as the nineteenth century, this did not find wide application till a few…

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Principle of Vacuum Circuit Breaker

Principle of Vacuum Circuit Breaker: In the Principle of Vacuum Circuit Breaker, vacuum (degree of vacuum being in the range from 10-7 to 10-5¬†torr) is used as the arc quenching…

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Circuit Breakers Interview Questions and Answers

Circuit Breakers Interview Questions and Answers: 1. What do you understand by switchgear ? Ans. The apparatus employed for switching, controlling and protecting the electrical circuits and equipment is known…

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DC Circuit Breaker

DC Circuit Breaker: Light duty DC Circuit Breaker have been in use since long. However, with the latest developments in HVDC transmission there would naturally be the necessity of the…

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SF6 Circuit Breaker

SF6 circuit breaker: One of the recent developments in the field of high voltage switchgear is the SF6 circuit breaker. In this a gas called sulphur hexafluoride is used as…

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Recent Developments in Circuit Breaker Tester

Recent Developments in Circuit Breaker Tester: Generating capacity the world over has been increasing at phenomenal rates. Compared to the increase in generated power the breaking capacities of Circuit Breaker…

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Performance of Circuit Breaker System Requirements

Performance of Circuit Breaker System Requirements: Analysis of circuit interruption and the foregoing discussion of various circuit breakers apply to circuit breakers in practice if they had ideal switching characteristics.…

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