What is the structure of vacuum circuit breaker?
The vacuum circuit breaker consists of a steel arc chamber in a centrally symmetrical arrangement of ceramic insulators. Therefore the pressure inside the vacuum interrupter is kept below 10^-4 tor.
The contact material plays an important role in the performance of the vacuum circuit breaker. The best material for VCB is copper-bismuth or copper-chromium
The schematic diagram of the vacuum circuit breaker is shown in the above picture, we can see that it has fixed contacts and rotating contacts. and includes a vacuum interrupter. The rotary contacts are connected to the control system via stainless steel bellows.
When they cover the shield in this way, the sealed arc is supported on the insulating housing. And prevent condensation on the insulating housing. Glass or ceramic vessels are used as external insulators because the vacuum chamber is permanently sealed. So there is no possibility of leakage.
JGGY VSG series 12/24/36KV vacuum circuit breaker is a new generation of medium-voltage solid-sealed pole-type vacuum circuit breaker, independently developed by Zhejiang Jingao High Voltage Electrical CO.,LTD. It has applied for a number of technical patents and has passed the complete set of type tests conducted by the National High-voltage Electrical Appliance Quality Supervision and Inspection Center. The product design has beautiful appearance, convenient operation, high reliability and long life.
VSG Series vacuum circuit breakers can be used in special environments, maintenance-free, and can be operated frequently. Compared with traditional circuit breaker products, the mechanical life has been increased from 10,000 times to 20,000 times, and the service life has been greatly improved. Type tests demonstrate a very low probability of re-breakdown during capacitive current interruption. Features extended electrical life and maintenance-free.
VSG series solid-sealed pole vacuum circuit breakers are indoor switchgear components suitable for 12kV, 24KV, 36KV, three-phase AC 50Hz, and can be used as protection and control units for industrial and mining enterprises and substation equipment. VSG series circuit breakers are used in mid-mounted switchgear and fixed switchgear. The circuit breaker adopts the modularized spring operating mechanism and the frame-independent design. The circuit breaker can be fixedly installed, or can be installed as a handcart unit with the chassis.
JGGY ELECTRICAL also produce other VCB, like VS1-12, VS1-24, VJG-12, VJG-24 for indoor; ZW7, ZW8, ZW32, ZW43 , for outdoor 12/24/36KV vacuum circuit breaker.
several years, with the strength, with good quality and pretty competitive price. Should you have any questions, pls do not hesitate to contact me.
Ms Miya: sales@jggyelectrical.com
Whatsapp: +86 181 0679 6660
