Operating range of the general provisions of the isolation switch disconnectors allowable operating range pull-in voltage transformers and surge arresters 1. normal. 2. Pull together 220kV bus load. 3. pull together the transformer neutral is not grounded grid failure. 4. Pull together via a switch or bypass current disconnectors closed. 5. Jog outdoor vertical triple isolation switch disconnectors buy Hainan, pull-in voltage in 220kV and above the excitation current does not exceed 2A load transformer and capacitor current does not exceed 5A of load lines. 6.10kV outdoor triple isolation switch pull together no more than 15A of load current. 7.10kV isolation switch pull together does not exceed 70A balanced current loop. Common fault isolation switch cited what? A: The common fault isolation switch are: (1) contact part overheating. (2) ceramic insulation damage and flashover discharge. (3) refusing to pull, closing. (4) the error pull closing. Welcome to inquire buy, thank you for your attention! Henan disconnectors purchase _ Huayi Electric Power (certified) _ isolating switch is provided by Xian Huayi power plant. Xian Huayi power plant (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. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.