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China wholesale Cgl Vacuum Interrupter Supplier – Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone


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China wholesale Cgl Vacuum Interrupter Supplier – Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone Detail:

Brief description of the product:

Vacuum Arc recovery of Vacuum Circuit Breaker
High vacuum possesses extremely high dielectric strength. At zero current the arc is extinguished very quickly, and the dielectric strength is established very quickly. This return of dielectric strength is because of the vaporized metal which is localized between the contacts diffuses rapidly due to the absence of gas molecules. After arc interruption, the recovery strength during the first few microseconds is 1 kV/µs second for an arc current of 100A.
Because of the above-mentioned attribute of vacuum circuit breaker, it is capable of handling the severe recovery transients associated with short-line faults without any difficulty.

Property of contact material
The contact material of the vacuum circuit breaker should have the following property.

Working Vacuum Circuit Breaker
When the fault occurs in the system, the contacts of the breaker are moved apart and hence the arc is developed between them. When the current carrying contacts are pulled apart, the temperature of their connecting parts is very high due to which ionization occurs. Due to the ionization, the contact space is filled with vapour of positive ions which is discharged from the contact material.

Maintenance cycle of vacuum circuit breaker
The vacuum circuit breaker has the characteristics of high reliability, long service life and relatively long maintenance and repair cycle, but it can not be mistaken that the vacuum circuit breaker does not need maintenance. The maintenance cycle should be flexibly controlled according to relevant regulations and in combination with the actual operating conditions.

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Features

1. The arc is extinguished in a sealed container, and the arc and hot gas are not exposed. As an independent component, the arc extinguishing chamber is easy to install and debug.
2. The contact clearance is very small, usually about 10mm, with small closing power, simple mechanism and long service life.
3. The arc extinguishing time is short, the arc voltage is low, the arc energy is small, the contact loss is small, and the breaking times are many.


Product detail pictures:

China wholesale Cgl Vacuum Interrupter Supplier –  Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone detail pictures


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We will make every effort to be outstanding and perfect, and accelerate our steps for standing in the rank of international top-grade and high-tech enterprises for China wholesale Cgl Vacuum Interrupter Supplier – Vacuum interrupter for MV VCB(ceramic shell, Rated voltage: 7.2kV-12kV) – Shone , The product will supply to all over the world, such as: Istanbul, Bolivia, Palestine, There are advanced producing & processing equipment and skilled workers to ensure the merchandise with high quality. We've got found an excellent before-sale, sale, after-sale service to ensure the customers that could rest assured to make orders. Until now our merchandise are now moving on fast and very popular in South America, East Asia, the Middle east, Africa, etc.
  • This company has the idea of "better quality, lower processing costs, prices are more reasonable", so they have competitive product quality and price, that's the main reason we chose to cooperate.
    5 Stars By Delia from Zambia - 2017.12.31 14:53
    The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
    5 Stars By Alva from Iceland - 2017.06.29 18:55
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