Disconnecting Circuit Breaker (DCB)

- Jun 30, 2017 -

The disconnecting circuit breaker (DCB) was introduced in 2000 and is a high-voltage circuit breaker modeled after the SF6-breaker. It presents a technical solution where the disconnecting function is integrated in the breaking chamber, eliminating the need for separate disconnectors. This increases the availability, since open-air disconnecting switch main contacts need maintenance every 2–6 years, while modern circuit breakers have maintenance intervals of 15 years. Implementing a DCB solution also reduces the space requirements within the substation, and increases the reliability, due to the lack of separate disconnectors.

Here is our hot sales type - GN19 disconnecting switch in global market, GN19-12(C)Indoor AC High Voltage isolating link applies to power system of rated voltage

below 12kV,AC 50/60Hz. It is equipped with CS6-1 manual-operating mechanism

and is used to break and make circuit under no-load. There are additional pollution type,

high-altitude type and electrified display.

 

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