Xi 'an Xidan Digital Technology Co. LTD（Xd Digital Technology，Former name: Xi 'an Duanyi Technology Co., LTD）Xd is a holding subsidiary of China XD Group, specializing in smart power grid control protection and digital industrial control technology research, basic software and hardware platform and complete equipment development and engineering application. Xd Digital Technology firmly pursues to build its own technology, products and services into a leading brand at home and abroad, and will make full use of the Internet of Things, distributed control, big data and other latest technologies to bring the latest generation of control and protection products to the market, complete matching with the parent company's advanced power primary equipment, to meet the needs of domestic and foreign markets for advanced electrical equipment.