Product
China wholesale G&W Vacuum Fault Interrupter Factory – Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone
China wholesale G&W Vacuum Fault Interrupter Factory – Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone Detail:
Brief description of the product:
A breaker which used vacuum as an arc extinction medium is called a vacuum circuit breaker. Vacuum circuit breaker has a high insulating medium for arc extinction as compared to the other circuit breaker.When an arc is opened by moving apart the contacts in a vacuum, an interruption occurs at the first current zero. With the arc interruption, their dielectric strength increases up to a rate of thousands time as compared to other breakers.
It is very simple in construction as compared to any other circuit breaker. Their construction is mainly divided into three parts, i.e., fixed contacts, moving contact and arc shield which is placed inside the arc interrupting chamber.
Current chopping in vacuum circuit breaker depends on the vapour pressure and the electron emission properties of the contact material. The chopping level is also influenced by the thermal conductivity–lower the thermal conductivity, lower is the chopping level.
Pay attention
Measures to prevent overvoltage. Vacuum circuit breaker has good breaking performance. Sometimes when breaking inductive load, high overvoltage is generated at both ends of inductance due to rapid change of loop current. Therefore, for dry-type transformers and other equipment with low impulse voltage resistance, it is best to install overvoltage protection devices, such as metal oxide arresters.
FAQ
Q:What’s your package standard?
A:Usually we use standard foam and carton for package. If you have special requests, we can also according to your requirements.
Q:Can we visit your company?
A: Yes, for sure, you are welcome to visit our company.
Q:Can I get some samples?
A:Yes, sample order is available for quality check and market test.
Product detail pictures:
Related Product Guide:
Bear "Customer first, Excellent first" in mind, we operate closely with our customers and supply them with efficient and expert services for China wholesale G&W Vacuum Fault Interrupter Factory – Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone , The product will supply to all over the world, such as: Afghanistan, Israel, Germany, We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market.
By Honorio from Latvia - 2018.06.09 12:42
The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
By Judy from Tanzania - 2018.12.10 19:03
