Sulphur Hexafluoride Circuit Breaker: In Sulphur Hexafluoride Circuit Breaker (SF6) gas is used as the arc quenching medium. The SF6 is an electro-negative gas and has a strong tendency to…
Protection and Switchgear Interview Questions and Answers: Following are the below Protection and Switchgear Interview Questions and Answers, Protection and Switchgear Important Questions and Answers 1. Mention the essential features…
Circuit Breakers Articles: Circuit Breakers Definition: A circuit breaker can make or break a circuit either manually or automatically under all conditions viz., no-load, full-load and short-circuit conditions. This characteristic…
Recent Developments in Circuit Breakers Articles: Recent Developments in Circuit Breaker Tester: Generating capacity the world over has been increasing at phenomenal rates. Compared to the increase in generated power…
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…
Types of Circuit Breaker Articles: Air Blast Circuit Breaker Diagram : These breakers employ a high pressure air-blast as an arc quenching medium. The contacts are opened in a flow…
Van De Graaff Generator Working Principle: The schematic diagram of a Van De Graaff Generator Working Principle is shown in Fig. 6.6. The generator is usually enclosed in an earthed…
Applications of Power Transformers: Transformers are the first to encounter lightning and other high voltage surges. The transformer insulation has to withstand very high impulse voltages many times the power…