lightning arresters are used in power systems to protect electrical equipments against external ( lightning ) or internal ( switching ) events.
lightning arresters are used in power systems to protect electrical equipments against external ( lightning ) or internal ( switching ) events.
lightning arresters are used in power systems to protect electrical equipments against?
external ( lightning ) or internal ( switching ) events
lightning arrester









































a lightning arrester (alternative spelling lightning arrestor) (also called lightning diverter) is a device used on electric power systems and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning. the typical lightning arrester has a high-voltage terminal and a ground terminal. when a lightning surge (or switching surge, which is very similar) travels along the power line to the arrester, the current from the surge is diverted through the arrester, in most cases to earth.
lightning arrester
acting as the head of power transmission and distribution equipment production industry in china, xd group promotes the technology of power transmission and distribution equipment in china and providing key equipment for national key engineering projects. it once provided complete sets of power transmission and distribution equipment and services for our national key engineering projects one after another, such as china’s first 330kv and 550kv high voltage dc transmission engineering, the first 750kv extra high voltage ac transmission engineering, the first ±100kv high voltage dc transmission engineering, the first ±500kv extra high voltage dc transmission engineering, the first ±800kv extreme high voltage dc transmission engineering, the first power supply network from the northwest to the north china back-to-back dc transmission engineering, three gorges project, and west-east electricity transmission project. among them, the products, like transformers of 750kv, reactors, lightning arresters, capacitor voltage transformers and isolating switches of 800kv, have been operated successfully in 750kv model projects in the northwest; china’s first 800kv double cut-off pot-style breakers has been put into operation at yinchuan east transformer substation. besides, xd group first developed and stored relevant technologies of ac 1100kv and dc ±800kv extreme high voltage products in china, provided such products as 1000kv gis, reactors, capacitor voltage transformers, lightning arresters, ground switches, insulator, etc., for the megavolt model line “southeast shanxi—nanyang—jingmen model project” and such products as transformers, valves, capacitor, lightning arresters, etc., for the megavolt model line “yunnan—guangzhou” ±800kv extreme high voltage dc transmission project. on the international markets, xd group’s products and technology have been exported to more than 40 countries and regions and succeeded in entering the markets of some developed countries and regions, such as germany, america, singapore, hong kong, etc.
xd group