China XD Group

China XD Group Co., Ltd. (XD Group) was established in 1959, an important manufacturer of power transmission and distribution equipment in China, headquartered in Xi'an. It mainly researches, manufactures, and sells high-voltage switches, transformers, reactors, etc., providing complete equipment and services for domestic and international power projects.

China XD Group developed as a major Chinese producer of equipment for the electrical power system, with a focus on high-voltage transmission, transformation, and distribution. Its industrial role is tied to the expansion and modernization of China's national grid, particularly the construction of long-distance transmission systems capable of moving large quantities of electricity between regions. The group combines manufacturing subsidiaries with dedicated research institutions. Its research activities cover high-voltage, high-current, and large-capacity AC and DC systems, allowing it to develop equipment for conventional substations as well as ultra-high-voltage transmission corridors. The organization has reported approximately 60 subsidiaries, around 10 medium-sized manufacturing enterprises, and three research institutions. Its stated workforce includes approximately 18,000 employees, of whom about 3,000 are engineers and technical personnel. China XD Group's domestic project involvement includes equipment for some of China's earliest 330 kV and 550 kV DC infrastructure, 750 kV AC transmission, and ±100 kV and ±500 kV DC systems. It has also supplied or participated in equipment programs connected with the Three Gorges Project and the west-to-east electricity transmission initiative. These activities helped establish its identity as a supplier of high-capacity grid equipment rather than a general electrical-products brand. The group subsequently expanded its work in ultra-high-voltage technology. Its reported capabilities include AC 1100 kV and DC ±800 kV equipment, such as 1000 kV gas-insulated switchgear, reactors, capacitor voltage transformers, lightning arresters, grounding switches, and insulators. It has also supplied transformers, valves, capacitors, and arresters for major ±800 kV HVDC projects, including the Yunnan–Guangzhou transmission corridor. Equipment associated with 750 kV model projects and the Yinchuan East transformer substation further illustrates its participation in high-voltage demonstration and operating systems. From the 2010s onward, China XD Group increased its overseas project activity. In 2013, it signed a memorandum of understanding with Uzbekenergo to study the development of wind farms in Uzbekistan, an early example of the group's effort to extend beyond equipment manufacturing into broader energy-infrastructure cooperation. Following the launch of the Belt and Road Initiative, the group described international exports and project participation across Asia, the Middle East, Europe, North America, and other markets. Reported projects included a transformer-manufacturing joint venture in Indonesia, HVDC work in the Philippines and Pakistan, a turnkey transmission project in Laos, transmission-line projects in Malaysia and Uzbekistan, and equipment supply for Saudi Arabia's NEOM-related hydrogen-production infrastructure. The group has also sought international technical recognition and cooperation. It is described as a member of the International Electrotechnical Commission and CIGRE, and its research institutions conduct testing relevant to the performance of high-voltage equipment. Company materials have claimed development of approximately 1,300 products and ownership of about 260 patents, including software-related copyrights. These figures are self-reported and should be treated as time-dependent corporate information. Today, China XD Group is best understood as a state-owned power-equipment and engineering group serving national-grid programs, utility customers, EPC contractors, and international infrastructure projects. Its brand is associated with transformers, switchgear, reactors, and other equipment needed to build and operate high-voltage and ultra-high-voltage transmission networks.

• 2013

  Expansion into Uzbekistan wind-power cooperation

  [1]China XD Groupen.wikipedia.org

  China XD Group signed a memorandum of understanding with Uzbekenergo to conduct a feasibility study for wind-farm development in Uzbekistan, broadening its international energy-infrastructure activities beyond equipment supply.

Technology-oriented state-owned supplier of high-voltage and ultra-high-voltage power transmission, substation, and distribution equipment for utility and infrastructure projects.

• Transformers

  Power and converter transformers

  China XD Group manufactures transformers for power-generation interfaces, substations, and long-distance transmission systems. Its reported capabilities include transformer applications up to 750 kV and equipment for high-voltage direct-current converter stations. Converter transformers are used to connect AC networks with HVDC systems, while conventional power transformers support voltage transformation across transmission and distribution networks.

• Grid compensation equipment

  High-voltage reactors

  The group supplies smoothing and shunt reactors for high-voltage and ultra-high-voltage networks. These devices help manage current, reactive power, voltage behavior, and harmonics in transmission systems. They are used in both AC substations and HVDC applications, including large-scale transmission corridors and converter-station infrastructure.

• Switchgear

  Gas-insulated switchgear and circuit breakers

  China XD Group produces gas-insulated switchgear and high-voltage switching equipment for substations and transmission networks. Reported product capability reaches 800 kV for GIS applications. The equipment is intended to isolate, protect, and control high-voltage circuits where compact substation layouts, high reliability, and operation under demanding electrical conditions are required.

• Substation protection and measurement equipment

  Lightning arresters and capacitor voltage transformers

  The group supplies lightning arresters, capacitor voltage transformers, and related substation components. Lightning arresters protect grid equipment from switching surges and lightning overvoltages, while capacitor voltage transformers provide voltage measurement and protection signals in high-voltage networks. These products are used alongside transformers, switchgear, reactors, and control systems.

• Power transmission systems

  HVDC transmission equipment

  China XD Group supplies combinations of transformers, valves, capacitors, reactors, arresters, insulators, and switching equipment for high-voltage direct-current transmission projects. Its reported involvement includes ±800 kV-class systems and major Chinese transmission corridors such as the Yunnan–Guangzhou project. The offering is oriented toward utility-scale, long-distance electricity transmission rather than consumer electrical products.

• 2018

  Source 1Source 2Source 3

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• 2013

  Pursuit of overseas renewable-energy cooperationStrategy

  Background

  China XD Group sought to expand its international energy-infrastructure role and explore applications beyond its established power-transmission equipment business.

  Action taken

  The group signed a memorandum of understanding with Uzbekenergo to study the feasibility of wind-farm construction in Uzbekistan.

  Aftermath

  The memorandum marked an early reported step in the group's overseas energy-project development and preceded broader international activity associated with Belt and Road infrastructure cooperation.

  Source

1. 1China XD Groupen.wikipedia.org
2. 2China XD Group official websitexd.com.cn
3. 3中国西电集团有限公司xd.com.cn
4. 4集团简介-中国西电集团有限公司xd.com.cn
5. 5主要产品-中国西电集团有限公司xd.com.cn
6. 6XD Groupwikidata.org
7. 7中国西电集团zh.wikipedia.org
8. 8巡视发现违规采购、公款吃喝；中国西电营收虚增被责令改正sasac.gov.cn
9. 9巡视发现违规采购、公款吃喝；中国西电营收虚增被责令改正csrc.gov.cn
10. 10巡视发现违规采购、公款吃喝；中国西电营收虚增被责令改正paper.cnstock.com