Vacuum arc and gas arcing I are very different, the phenomenon of free gas is not the main factor arc, vacuum arc discharge is in contact electrode evaporated metal vapor formed. At the same time, breaking current of the circuit breaker factory outlets of different sizes Hohhot arc performance characteristics are also different. We generally divide it into small current vacuum arc and large current vacuum arc. [Product Name]: VS1 (ZN63) breaker [Details]: Overview VS1 (ZN63A) -12 indoor high-voltage circuit breakers for KYN28A-12 high-voltage switchgear in the home is a three-phase AC 50Hz, rated voltage of 12kV. indoor installations, for industrial and mining enterprises, power plants and substations for control and protection of electrical installations, and for frequent operation place. Use of the environment 1, ambient temperature is not higher than +40 ℃ Hohhot breaker factory direct, not less than -10 ℃ (to allow storage at -30 ℃ when); 2, altitude not more than 2000m; 3, air relative humidity daily average less than 95% Hohhot breaker factory direct, on average less than 90% Hohhot breaker factory outlets, saturated vapor pressure on average less than 2.2 × 10MPa, on average less than 1.8 × 10MPa, at high temperature during the temperature When the drop, allowing condensation; 4 earthquake intensity not more than 8; 5, no fire, explosion, heavy pollution, chemical corrosion and violent vibration welcome to inquire.! High voltage vacuum circuit breaker | Huayi Electric Power (Online) | Hohhot breaker provided by Xian Huayi power plant. Xian Huayi Electric Power Equipment Factory (www.xahy.com) is a leader in Xi'an high-voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Huayi Electric Power leadership with the staff warmly welcome all inquiries negotiations to create Huayi electricity better future.