China XD Group

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Xi'an Electric is a Chinese manufacturer of electrical equipment. It was established in 1959 and is also known as the Xi'an XD Group. Previously known as Xi'an Electric Machinery Manufacturing Company and Xi'an XD, the company is now part of China XD Group.^[3]

The name Xi'an Electric is an abbreviation of the company's name, which is written as Xi'an in Chinese characters which refers to where the company was founded.

Xi'an Electric's products include power generation equipment, power transmission equipment, distribution equipment, transformers, and other related electrical equipment.^[4] The China XD Group, formerly known as the Xi'an Electric Machinery Manufacturing Company and the Xi'an Electric, is a Chinese state-owned power engineering business and electrical equipment manufacturer. Founded in July 1959^[5], the company was formally named Xi'an Electric Machinery and abbreviated as Xi'an XD. The company also went by the names Xi'an Xidian and Xi'an Electric.

The core business of China XD Group focuses on the research, development, design, production, sales, and testing of power transmission, distribution, and control equipment. It specializes in high-voltage, extra-high-voltage, and ultra-high-voltage AC/DC power transmission and distribution systems.

Key products include:

• High-voltage switches (GIS, GCB, isolating switches, ground switches) at 110 kV and above.
• Transformers (power transformers, converter transformers).
• Reactors (smoothing reactors, shunt reactors).
• Instrument transformers (CVT, CT, PT).
• Insulators (porcelain and composite).
• Zinc oxide arresters and DC transmission valves.

The company is a production base for high voltage and ultra-high voltage AC/DC transmission equipment in China.

XD Group's subordinate research institutions constitute China's experimental research establishment of agencies involved with high-voltage, high current and large capacity AC/DC. They have become members of the International Electrotechnical Commission (IEC), the International Conference on Large High Voltage Electric Systems (CIGRE), and the specified administrative department of the IEC in China along with the relevant international Secretariat. In recent years, according to the needs of national projects and the Economy of China, XD Group has been increasing its research efforts and implementing technical reforms, resulting in over 1300 new products, of which 281 reached the international most advanced level, 230 items reached the national most advanced level, 11 items won national scientific and technical awards, and 136 items won provincial or ministerial scientific and technical awards.^{[citation needed]} Furthermore, 260 patents were authorized, and two items fall under computer software copyright.

XD Group supplies power transmission and distribution equipment in China and key equipment for various national engineering projects, including 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 of China back-to-back DC transmission engineering, the Three Gorges Project, and a west-east electricity transmission project. Among them, products like transformers of 750kV, reactors, lightning arresters, capacitor voltage transformers and isolating switches of 800 kV have been operated successfully in 750kV model projects in the northwest of China. China's first 800kV double cut-off pot-style breakers have been put into operation at Yinchuan East Transformer Substation.^{[citation needed]}

China XD Group developed technology for AC 1100kV and DC ±800kV (extremely high voltage) products in China, providing equipment such as 1000kV GIS, reactors, capacitor voltage transformers, lightning arresters, ground switches, and insulators for the megavolt model line “Southeast Shanxi—Nanyang—Jingmen Model Project.” Additionally, they supplied transformers, valves, capacitors, and lightning arresters for the “Yunnan—Guangzhou” ±800kV Extreme High Voltage DC Transmission Project.

Currently, China XD Group owns around 40 subsidiaries, including 10 major or medium-sized production enterprises and three research institutions (which include three national testing centers). The company employs more than 18,000 people, with over 3,000 of them working as engineers and technicians.^{[citation needed]}

China XD Group's main business includes the research and development, design, production, sales and testing of power transmission and distribution and control equipment, relevant equipment technology and service in a complete set, engineering contracting, etc. Its core business is the production, research, development and testing of high voltage, extra high voltage and extreme high voltage AC/DC power transmission and distribution equipment. Its leading products include 110 kV and above voltage level of high voltage switches (GIS, GCB, isolating switches, ground switches), transformers (power transformers, converter transformers), reactors (smoothing reactors, shunt reactors), power condensers, instrument transformers (CVT, CT, PT), insulators (power substation electric porcelain products, composite insulator products), cannula, zinc oxide arresters, direct current transportation valves, etc. China XD Group is the production base of high voltage, extra high voltage and extreme high voltage AC/DC power transmission and distribution equipment and other electrical products.

China XD Group's participation in the Belt and Road Initiative

Since the Belt and Road Initiative was proposed in 2013, China XD Group exports its products and technologies to over 100 countries and regions, contributing to major international projects.^[6] Major projects include:

Southeast Asia:

• Indonesia: Joint venture to produce 500kV power transformers.
• Philippines: Construction of the MVIP HVDC transmission project.
• Laos: Completion of the Hongsa power transmission and transformation turn-key project.
• Malaysia: Transmission line project undertakings.

South Asia:

• Pakistan: Construction of the first ±660kV HVDC transmission line.

Middle East:

• Saudi Arabia: Equipment supply for the NEOM water electrolysis hydrogen production project.

Central Asia:

• Uzbekistan: Signed EPC contract for the 500kV ring transmission line project.

Africa:

• Egypt: Winning bids for two substation projects, valued at approximately 257 million yuan.

In 2013, XD planned to assist Uzbekistan in constructing wind farms as its first major wind power project. A Memorandum of Understanding (MoU) was signed with Uzbekenergo, the country's governing body for energy, to conduct a feasibility study on the establishment of wind farms.^[7]

China XD Group has made significant contributions to the development of power transmission and distribution systems in China. Key milestones include:

• Development of China’s first 330 kV and 550 kV high-voltage DC transmission systems.
• Construction of the first 750 kV extra-high-voltage AC transmission system.
• Implementation of ±800 kV ultra-high-voltage DC (UHVDC) transmission engineering.
• Participation in major national projects such as the Three Gorges Project and the West-to-East Electricity Transmission Project.

The company has developed over 1,300 new products, with 281 achieving international advanced levels and 230 reaching national advanced levels. It has also received 260 patents and numerous scientific and technical awards.^{[citation needed]}

China XD Group specializes in advanced electrical equipment and systems. Key product categories include:

• Transformers: Up to 750 kV for power and converter applications.
• High-voltage reactors: Smoothing and shunt reactors.
• Switchgear: Gas-insulated (GIS) systems up to 800 kV.
• Lightning arresters and capacitor voltage transformers.

These products are integral to high-voltage and ultra-high-voltage power networks, supporting national and international infrastructure projects.

China XD Group exports its products and technologies to over 40 countries and regions, including Germany, the United States of America, Singapore, and Hong Kong.

Currently, China XD Group is involved in research on high-voltage universal power transmission and distribution equipment. Its ongoing projects include:

• Developing products for 750 kV power networks.
• Advancing 800 kV GIS and associated technologies.
• Innovating transformers, isolating switches, reactors, and lightning arresters for high-voltage applications.

• http://en.xd.com.cn/– Official site (in English)
• http://www.xd.com.cn – Official site (in Chinese)
• https://kh.linkedin.com/company/chinaxd?trk=ppro_cprof
• https://en.xd.com.cn/info/1003/2461.htm