550kV Gas Insulated Circuit Breaker(SF6)CB

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550kV Gas Insulated Circuit Breaker(SF6)CB Product Details：

550kV Gas Insulated Circuit Breaker(SF6)CB

General:

Circuit breaker (CB) has been around for almost as long as industrial electrical power usage. They react automatically to fluctuations in electrical current, and trip to protect a circuit from damage from overloading or short circuiting. Modern SF6 type circuit breakers use compressed gas to interrupt current flow and are common in electrical power substations.
Current interruption in a high-voltage circuit-breaker is obtained by separating two contacts in a medium, such as sulfur hexafluoride (SF6), having excellent dielectric and arc-quenching properties. After contact separation, current is carried through an arc and is interrupted when this arc is cooled by a gas blast of sufficient intensity.

Standards:

IEC-60056 High Voltage Alternating Current Circuit-Breakers

GB1984-2003 High Voltage Alternating Current Circuit-Breakers

Features:

Ø Compact and simple construction

Ø Low operation noise

Ø High reliability

Ø No leakage, operator and environment friendly design.

Ø Easy erection & free maintenance

Application: It is suitable for control and protection of electrical power system, and can also be used as interconnected circuit breaker.

Typical specification:

Ø Type: SF6 Circuit Breaker