State Grid UHV expert group visited CYG Insulator for inspection
On February 24, 2023, State Grid UHV expert group visited CYG Insulator to inspect the supply of insulators for the Zhumadian-Wuhan UHV transmission project line.
CYG Insulator assists in the successful meeting of the Electric Power Insulator Industry Standard Committee
On May 25, 2023, the 4th working meeting of the Electric power Industry Insulator Standardization Technical Committee was held in Dongguan City. More than 70 attendees from the China Electric Power Academy of Sciences, China Electric Power Union, Tsinghua University, State Grid electric Power Science Research Institute leaders, experts and representatives of the national power insulator manufacturers participated in the meeting. The meeting was chaired by Mr. Wu Guangya, director of China Electric Power Research Institute.
CYG Insulator won "The first batch of Individual Champion Enterprises in Dongguan City"
In August 2023, the Dongguan Municipal Bureau of Industry and Information Technology announced the "List of the first batch of manufacturing single champion enterprises (products) in Dongguan", and CYG Insulator was selected in the list.
Summer Cooling Activity
On August 8, 2023, on the occasion of the Start of Autumn, the company carried out a "Pay tribute to the staff who stick to the front line" CYG 2023 summer cooling activity. The company sent out 300+ cups of frozen plum juice, expressing the company's deep love for the majority of employees.
Major projects of State Network and Southern Network
1) Yueyang, Hunan to Nanning, Guangxi 500 kV power transmission and transformation project: The project, with a total length of about 970 kilometers and 500 kV transmission technology, is a long-distance cross-provincial power transmission channel, led by the State Grid Corporation, and is expected to invest about 2 billion yuan. The project is scheduled to complete the preliminary work by the end of 2021, is expected to start in 2022, and the construction period is expected to be three years.
Major UHV projects in China
1) Guizhou Anshun, Guizhou Longli, Guangxi Hepu, Guangdong Zhanjiang UHV DC inter-provincial networking project: The project line length of about 1500 kilometers, using ±1100 kV UHVDC transmission technology, is expected to invest about 36 billion yuan, led by the State Grid Corporation, is expected to start in 2022, 2025 completion.
About Us
CYG Insulator Co., Ltd. is a national high-tech enterprise controlled by Changyuan Technology Group Co., Ltd. (stock abbreviation: Changyuan Group, stock code: 600525. SH).
Composite insulators for transmission lines
COMPOSITE INSULATOR FOR TRAMSMISSION LINE
High voltage Composite Insulators offer the ultimate solution in improved performance. Because of its hydrophobicity, this material inherently resists water filming thereby limiting leakage currents. Insulators with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone insulators.
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Composite insulators for transmission lines
COMPOSITE INSULATOR FOR TRAMSMISSION LINE (POST TYPE)
Composite Line Post Insulators offer the ultimate solution in improved performance. Because of its hydrophobicity, this material inherently resists water filming thereby limiting leakage currents. Insulators with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone .
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Composite insulators for transmission lines
COMPOSITE INSULATOR FOR DISTRIBUTION LINE
Medium voltage Composite Insulators offer the ultimate solution in improved performance.Because of its hydrophobicity, this material inherently resists water filming thereby limitingleakage currents. Insulators with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone insulators.
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Electric railway composite insulator series
COMPOSITE RAILWAY INSULATOR
Composite Railway Insulators offer the ultimate solution in improved performance. Because of its hydrophobicity, this material inherently resists water filming thereby limiting leakage currents. Insulators with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone insulators. Application: Composite Railway Insulators are used on overhead lines operating at or below 230 kV. These insulators are used for catenary of Railway electrification and plays the role of mechanical connection and electrical insulation between catenary and tower. Component: Composite Line Post Insulators are consisted of E-CR fiber reinforced polymer rod, metal fitting and housing materials. The glass must be electrically and chemically stable (ECR glass) and the housing(including the sheath and sheds) must be HTV silicone rubber with high hydrophobicity and high tracking & erosion resistance performance. Technology Innovation: For HTV SR, CYG has its own patent formula and its own patent of the production process; For process, CYG creats the unique whole molding injection/sealing
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Medium and low voltage electrical insulation components series
COMPOSITE INSULATION COMPONENTS
Composite Insulation Components offer the ultimate solution in improved performance. Because of its hydrophobicity, this material inherently resists water filming thereby limiting leakage currents.Composite Insulation Components with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone insulators. Application: Composite Insulation Components are used for complete sets of equipment related to distribution networks, such as fuses, isolation switches, load switches, switchgear, etc., to provide mechanical support and electrical insulation. Component: Composite Line Post Insulators are consisted of E-CR fiber reinforced polymer rod, metal fitting and housing materials. The glass must be electrically and chemically stable (ECR glass) and the housing(including the sheath and sheds) must be HTV silicone rubber with high hydrophobicity and high tracking & erosion resistance performance. Technology Innovation: For HTV SR, CYG has its own patent formula and its own patent of the production process; For process, CYG creats the unique whole molding injection/sealing process
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Substation composite insulator series
COMPOSITE SOLID AND HOLLOW CORE POST INSULATORS
Composite Solid and Hollow Core Post Insulators offer the ultimate solution in improved performance. Because of its hydrophobicity, this material inherently resists water filming thereby limiting leakage currents. Insulators with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone insulators. Application: Composite Solid and Hollow Core Post Insulators are used for insulation and mechanical fixation of busbars and electrical equipment in power plants and substations, including post composite insulators for reactors, busbars, and isolation switches.Hollow composite insulator commonly used in high-voltage electrical equipment such as GIS combination switches, transformers, transformers, capacitors, lightning arresters, cable accessories, wall bushings, etc. Component: Composite Solid Core Post Insulators are consisted of a core rod, end fittings, and a silicone rubber sheds and sheaths.Composite Hollow Core Post Insulators are composed of aluminum alloy flanges, glass fiber reinforced resin sleeves, and silicone rubber sheds and sheaths. Technology Innovation: For HTV SR, H&G has its own patent formula and its own patent of the production process; For process, H&G creats the unique whole molding injection/sealing
Learn more
Substation composite insulator series
COMPOSITE SOLID AND HOLLOW CORE POST INSULATORS
Composite Solid and Hollow Core Post Insulators offer the ultimate solution in improved performance. Because of its hydrophobicity, this material inherently resists water filming thereby limiting leakage currents. Insulators with reduced leakage currents, even when contaminated, require less frequent washing. The savings in such maintenance costs are added benefits of using silicone insulators. Application: Composite Solid and Hollow Core Post Insulators are used for insulation and mechanical fixation of busbars and electrical equipment in power plants and substations, including post composite insulators for reactors, busbars, and isolation switches.Hollow composite insulator commonly used in high-voltage electrical equipment such as GIS combination switches, transformers, transformers, capacitors, lightning arresters, cable accessories, wall bushings, etc. Component: Composite Solid Core Post Insulators are consisted of a core rod, end fittings, and a silicone rubber sheds and sheaths.Composite Hollow Core Post Insulators are composed of aluminum alloy flanges, glass fiber reinforced resin sleeves, and silicone rubber sheds and sheaths. Technology Innovation: For HTV SR, H&G has its own patent formula and its own patent of the production process; For process, H&G creats the unique whole molding injection/sealing
Learn more
Cases of major railway projects
The new Chengdu-Lanzhou Railway is one of the important projects in the development of western China, which includes four sections: Chengdu to Chuanzhusi section, Chuanzhusi to Mianyang section, Mianyang to Guangyuan section and Guangyuan to Lanzhou section. The section from Chengdu to Chuanzhusi is part of the railway construction. The section from Chengdu to Chuanzhusi is about 85.7 kilometers long, the construction standard is single-line electrification, the design speed is 250 km/h, and it is equipped with large tunnels such as Dadu River Bridge, Pengshan Tunnel and Koushuigou Tunnel, Zhonggu Mountain, etc. The terrain is undulating, and the construction is difficult. It is estimated that the total investment of this section is about 20.4 billion yuan, and its construction progress is synchronized with the whole line, and construction has begun.
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Domestic transmission line case
The Zhumadian to Wuhan AC Line project is a project invested and constructed by China Southern Power Grid, which aims to solve the contradiction between energy supply and demand in Zhumadian, Henan Province and strengthen the connection between Zhumadian and Wuhan, Hubei Province. The project has a total investment of 1.64 billion yuan, with a total length of 232 kilometers, including 220 kV transmission lines, cable lines and power transformation works. The design power is 1.2 million kilowatts, and the transmission capacity can reach 3 billion KWH per year.
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Foreign project case
The new Boten to Vientiane Railway project is a cross-border railway project jointly promoted by the Chinese government and the Lao government, connecting Boten City in China's Yunnan province and Vientiane city, the capital of Laos, with a total length of about 414 kilometers and a design speed of 160 kilometers per hour. The railway is mainly built by Chinese enterprises such as China Railway Engineering Group Co., LTD., China Railway 18th Bureau Group Co., LTD., China Civil Engineering Group Co., LTD., and Lao enterprises such as Lao Aoser Railway Group Co., LTD. It is reported that the total investment of the railway construction is 6.3 billion US dollars, of which the Chinese investment accounts for 70%.
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