At present the technical standards of the vacuum switchgear aspects are: GB3906-91 3 ~ 35kV AC metal enclosed switchgear DL404-91 Indoor AC High Voltage Switchgear order technical conditions of technical parameters and switching refuse breaker similar technical parameters, according to the loaded trip the parameters may be, Anyang City, North Gate area of ??low voltage, the only difference is, the switch refused according to the main circuit rated current electrical components (such as isolation switch, or current transformer) The minimum value of the rated current. 2. The high-voltage vacuum switch refusal of type high pressure vacuum switch, there are three classifications, each category there are several basic types, each of which has its own characteristics. KYN10-40.5 high voltage cabinet details sturdy cabinet, effective pressure relief channel can withstand shock and burning internal arc fault, effectively protect the personal safety of the operator. Breaker compartment door interlock and circuit breakers reliable, high and low switch procurement, only the circuit breaker compartment door closed, to operate circuit breakers, close, open and convenient to operate, rugged and reliable door. Combined shutter open and flexible, with the circuit breaker is pulled out, the shutter automatically closes and mandatory locking Ground interlock, secondary plug locking simple and reliable to meet the "Five Anti" functional requirements. Design unique propulsion mechanism causes Used in advancing the launch process can automatically find the position, once the contact is more reliable contact isolation can be equipped with floor-ZN85, VD4 (ABB ), ZN72 (Jiangsu Dongyuan), ZN107 (Jilin Yongda), VHM1 (Jilin Heng Tong), low voltage switch cabinet installation, VEP (Xiamen Huadian), FP (Areva), VY4 (Yangzhou universal), and other circuit breakers ; can be equipped with mid-mounted VB-40.5 (GE), ZN48 (Pacific), SF1 (Schneider) and other circuit-breaker protection class: shell IP4X, IP2X low voltage switch between compartments of the procurement, learning Connaught Electrical and Mechanical, Anyang City, North customs area of ??low voltage provided by the Henan learning Connaught Electrical and Mechanical Equipment Co., Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) is Zhengzhou, electronics, electrical products processing leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In practice Connaught Electrical and Mechanical leadership with the staff warmly welcome all inquiries negotiations to create learning Connaught Electrical and Mechanical better future.