Sulfur hexafluoride tank-type metal oxide surge arrester without gap (GIS arrester) applies to 66kV ~ 220kV gas-insulated metal-enclosed switchgear and controlgear to protect their insulators from being damaged by over-voltage. The arrester performance meets the requirements of GB11032 and IEC60099-4. The arrester is accessible to top, side and bottom wiring methods, as well as single-phase-in-one-tank, three-phase-in-one-tank and other structures. According to the demands of the customers, it can also be set with RS485 communication interface to transmit, save, edit or print the information and data stored in the host computer, realizing remote monitoring and meeting the requirements of unattended operation. It has passed the comprehensive type test of the National Quality Supervision and Inspection Center of Insulators & Surge Arresters. Featured by reasonable structure and reliable performance, the product is widely used in key domestic projects.

Xi'an Shendian Electric Co., Ltd. (hereinafter referred to as "Xi'an Shendian") is one of the designated domestic manufacturers of metal-oxide surge arrester, neutral grounding resistor, piezoresistor, surge protective device, resistor, cable accessories, tubular busbar, condenser bushing, composite insulator, epoxy insulating product, vacuum pressure impregnation product and other products. Xi'an Shendian is located at No. 23, Fazhan Avenue, New Industrial Park, High-tech Zone, Xi'an City, covering a site area of 19,000 m2 and gross floor area of 24,000 m2, and holding fixed asset amounted to RMB 200 Million. Xi'an Shendian currently has 330 employees, including 79 professionals and 20 experts who have made great contribution to China and are specialized in the design and manufacturing of surge arrester, resistor, cable accessories and epoxy insulation product.