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It is reported that the key science and technology project of the State Grid Corporation of China, mainly undertaken by the China Electric Power Research Institute, "Deepening Research on Key Technologies of UHV AC Engineering in High Altitude Areas" has recently successfully passed the acceptance
.
The research results of the project have improved the research level of UHV grade external insulation and wire electromagnetic characteristics in high-altitude areas in China, and will further enhance the field test ability
of high-altitude power transmission and transformation technology research in China.
It is reported that the altitude correction method of external insulation and conductor electromagnetic characteristics has an important impact
on the reliability and economy of transmission engineering design.
The internationally accepted altitude correction method is mainly suitable for areas of 2000 meters and below, and the voltage amplitude is lower than the requirements
of UHV level.
The altitude correction method proposed in this project can meet the air gap, insulator voltage correction and wire corona characteristic parameter altitude correction at an altitude of up to 4300 meters AC 1000 kV voltage level, and the technical indicators are significantly improved
.
The domestic high-altitude external insulation test research work is mainly carried out by the high-altitude test base, and the site altitude is a fixed altitude
.
After the successful development of the 4000 kV high-altitude quick-loading long-wavefront impulse voltage generator of this project, it meets the test conditions of on-site UHV level impact voltage at different altitudes, and lays a foundation
for the subsequent in-depth research of power transmission and transformation technology in high-altitude areas.
The project researched and established the first UHV grade corona cage test system in high-altitude areas in China, which significantly enhanced the research methods
for corona characteristics of UHV split conductors in high-altitude areas in China.
The research results of this project will be widely used in the construction of ultra-high voltage AC transmission and transformation projects in China's high-altitude areas, which has good economic and social benefits and will further promote the rapid development of
high-altitude transmission technology in China.
It is reported that the key science and technology project of the State Grid Corporation of China, mainly undertaken by the China Electric Power Research Institute, "Deepening Research on Key Technologies of UHV AC Engineering in High Altitude Areas" has recently successfully passed the acceptance
.
The research results of the project have improved the research level of UHV grade external insulation and wire electromagnetic characteristics in high-altitude areas in China, and will further enhance the field test ability
of high-altitude power transmission and transformation technology research in China.
It is reported that the altitude correction method of external insulation and conductor electromagnetic characteristics has an important impact
on the reliability and economy of transmission engineering design.
The internationally accepted altitude correction method is mainly suitable for areas of 2000 meters and below, and the voltage amplitude is lower than the requirements
of UHV level.
The altitude correction method proposed in this project can meet the air gap, insulator voltage correction and wire corona characteristic parameter altitude correction at an altitude of up to 4300 meters AC 1000 kV voltage level, and the technical indicators are significantly improved
.
The domestic high-altitude external insulation test research work is mainly carried out by the high-altitude test base, and the site altitude is a fixed altitude
.
After the successful development of the 4000 kV high-altitude quick-loading long-wavefront impulse voltage generator of this project, it meets the test conditions of on-site UHV level impact voltage at different altitudes, and lays a foundation
for the subsequent in-depth research of power transmission and transformation technology in high-altitude areas.
The project researched and established the first UHV grade corona cage test system in high-altitude areas in China, which significantly enhanced the research methods
for corona characteristics of UHV split conductors in high-altitude areas in China.
The research results of this project will be widely used in the construction of ultra-high voltage AC transmission and transformation projects in China's high-altitude areas, which has good economic and social benefits and will further promote the rapid development of
high-altitude transmission technology in China.
