Once inside the electrical components used (the main circuit device) common are the following equipment: current transformers referred CT [eg: LZZBJ9-10] referred voltage transformer PT [eg: JDZJ-10] earthing switch [eg: JN15-12] arrester (RC absorber) [eg: HY5WS single-phase type; TBP, JBP Combined] isolating switch [eg: GN19-12, GN30-12, GN25-12] high voltage circuit breaker [eg: less oil type (S) vacuum type (Z), SF6 type (L)] High Voltage Switchgear "Five Anti" vacuum breaker inside the car 1. High Voltage Switchgear inaccessible in the test position after closing fixed switchgear sales, car breakers work Location. (To prevent closing with load) 2. High Voltage Switchgear Switchgear ground knife within close position, the car can not enter the circuit breaker closing. (With a ground wire to prevent the closing) fixed switchgear parameters, Tianchang instrument linked instruments (certified), fixed switch is provided by the United Instrument Sales Co., Ltd. Tianchang instrument. Tianchang instrument Alliance Instrument Sales Co. (www.ylybxs.com) (www.ylybxs.com) is Chuzhou, temperature instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Tianchang instrument linked instruments in leadership with the staff warmly welcome all inquiries negotiations to create Tianchang instrument linked instruments a better future.