The world's first 1000 kV UHV AC single-circuit composite crosstower test was successful

The world's first 1000 kV UHV AC single-circuit composite crosstower test was successful
.
The test was developed and designed
by China Energy Construction CLP Engineering Northwest Institute.
The success of this test indicates that composite materials have the basis
for application in UHV AC transmission engineering.

The single-circuit composite cross-bearing tower of this test is developed and designed
by the Northwest Institute of CLP Engineering relying on the current State Grid "No.
1 Project" - Ximeng ~ Shengli 1000 kV UHV AC line project.
In the process of research and development, CLP Engineering Northwest Institute has successively completed theoretical analysis and tower design, various simulation analysis, electrical performance test, material properties and component fatigue test, laying the foundation
for the success of this test.

Liu Zehong, deputy general manager of the State Grid Corporation of China, who attended the test ceremony, fully affirmed
the scientificity and reliability of the test.
He said that the use of composite cross-bearing towers in transmission lines can greatly reduce the width of the line corridor, reduce the weight of the tower, save the amount of foundation concrete, have huge social and economic benefits, and is a revolutionary technological change
in the field of transmission.

Since 2009, CLP Engineering Northwest Institute, as the main R & D and design, assisted State Grid Corporation to complete a series of subject research, published 20 papers, obtained 3 invention patents, 4 utility model patents, and is applying for 2 invention patents, and has successively developed and designed the world's first base lattice composite tower, the first base 750 kV composite cross tower and the first base ± 800 kV composite rotating cross tower, making great contributions to the research and application of the whole set of composite tower technology of various voltage levels
。