Gas Insulated Switchgear | GIS Breaker

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What is Gas insulated switchgear? Gas insulated switchgears are metal enclosed types of switchgear with sulfur hexafluoride (SF6) gas acting as an insulation between the live parts and the earthed metal enclosure. The high voltage equipment is contained in a gas tight container filled with the insolent gas, SF6. What is The Use of Gas Insulated Substation? … Read more

Vacuum Circuit Breakers | VCB Breaker

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In a vacuum circuit breaker, the arc interruption takes place in vacuum. This technology has been found to be most suitable for medium voltage application though the experimental interrupters for 72.5 kV and 145 kV have been developed, they were not found to be commercially viable. Vacuum Circuit Breaker Principle In principle, a vacuum interrupter … Read more

SF6 Gas Circuit Breakers – Sulfur Hexafluoride Breaker

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What is SF6 Gas Circuit Breaker? A circuit breaker in which the contacts open and close in sulfur hexafluoride (SF6) gas is known as an SF6 circuit breaker. SF6 Circuit Breaker Where Do We Use Sulfur Hexafluoride Breaker? These circuit breakers are available for complete range of medium voltage and high voltage application up to 800 … Read more

Air Blast Circuit Breakers | ABCB

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What is Air Blast Circuit Breaker? This air blast circuit breaker has been used earlier for open terminal HV application, for system voltages of 245 kV, and 400 kV up to 765 kV, especially where faster breaker operation was required. In the later design, a two-cycle operation was achieved and even faster operating systems with a … Read more

Air Circuit Breakers | ACB Breaker

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What is Air Circuit Breaker? Air Circuit Breaker A circuit breaker in which the contacts open and close in air at atmospheric pressure is defined as an air circuit breaker. What Does ACB Stand For? ACB means air circuit breaker.The oil circuit breaker developments described above led to almost complete replacement of the earlier designs of … Read more

Minimum Oil Circuit Breakers | MOCB

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What is Minimum Oil Circuit Breakers? These minimum oil circuit breakers utilise oil as the interrupting media. However, unlike bulk oil circuit breakers, these designs place the interrupting units in insulating chambers at live potential. This feature of the design of MOCBs reduces the requirement of oil, and these breakers are therefore known as MOCBs. Minimum … Read more

Bulk Oil Circuit Breakers (BOCBs)

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What is called Bulk Oil Circuit Breakers? The circuit breakers in which the contacts part in oil and wherein the oil also provides the main insulation between the live part and earthed metal tank are called bulk oil circuit breakers. What Does BOCB Stand For? BOCB means bulk oil circuit breakers. Bulk oil circuit breaker These types … Read more

Arc in Circuit Breaker | Arc Extinction

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This article covers various technological aspects related to circuit breakers. The arc phenomenon which is common to all circuit breakers, has been discussed in the article, covering the arc phenomenon in gases and vacuum media. Circuit breaker technologies, which are based on the medium of arc interruption have also been covered. This includes the interruption … Read more