In the industrial electrical system, circuit breaker plays an important role of protecting the circuits against failure that may include overload and short circuit. There are different kinds of circuit breaker, among the vacuum circuit breaker (VCB) and SF6 circuit breaker are the most commonly used.
What is a Vacuum Circuit Breaker (VCB)?
A vacuum circuit breaker (VCB) is an electrical protection equipment in which vacuum is used as the medium of arc extinction. When a fault occurs, the vacuum within the circuit breaker contacts allows the device to interrupt the flow of current. The vacuum environment drastically decreases risk of arcing and is confirms the separation of the contacts, to interrupt the current.
Key Benefits of Vacuum Circuit Breakers:
Environmentally Friendly: VCB do not use harmful gases, making them more environmentally friendly.
Compact Design: They have a lower physical size compared to SF6 breakers.
Enhanced Reliability: Due to no ionization of gases ,the vacuum medium offer high reliability of the system and long operational life.
Shaanxi West Power Tongzhong Electrical Co., Ltd. focus on vacuum circuit breakers. In pursuit of safety and reliability, and to protect electrical system from faults, our company developed our own products such as the VTZ series. In mining uses, industrial uses and in power generational utilities, our vacuum circuit breakers provide advanced solutions, enhancing the overall safety of operations.
What is a SF6 Circuit Breaker?
A SF6 circuit breaker utilizes sulfur hexafluoride (SF6) gas as the insulating as well as arc-extinguishing medium. SF6 gas helps arcs to be extinguished efficiently in high voltage environments hence contributing towards the reason most of the substations use it and other similar power facilities.
Key Benefits of SF6 Circuit Breakers:
Superior Performance in High Voltages: SF6 gas is extremely efficient in the extinction of arcs in high voltage circuits, and this characteristic recommends its application in power transmission systems.
Long Lifespan: These breakers are known to have longer life as result of stability and other properties of SF6.
High Current Interrupting Capability: SF6 breakers are very useful for environments where large amounts of current has to be interrupted in less time and in safe manner.
Although SF6 circuit breakers are incredibly helpful in high voltage applications, the over-dependency on SF6 gas is fraught with environmental issues because of the high global warming potential of the gas.
Which is Right for Your Needs?
The major decision criterion of vacuum circuit breaker or the SF6 circuit breaker is the application. Vacuum circuit breaker provide a solution in industrial applications where space, cost, and environmental impacts are an issue. For high voltage power grids, SF6 circuit breaker offer performance big enough to handle larger currents.
Shaanxi West Power Tongzhong Electrical Co., Ltd. can provide vacuum circuit breakers of various voltage levels (such as the most widely used VTZ-12 Vacuum Circuit Breaker) and high voltage SF6 circuit breakers. If you have any needs, please contact directly: xdtz03@westpowerelectric.com or WhatsApp 86 18091765658.
