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Voltage Output Performance of 7200kV/480kJ Impulse Voltage Generator

Sun Lin

Open publisher page 3 citations

Abstract

The basic structure of 7 200 kV/480 kJ impulse voltage generator used in UHV DC test station of State Grid Corporation of China(SGCC) is presented.The output performance of lightning impulse,standard switching impulse and 500 μs and 1 000 μs long wave front switching impulse voltage were tested.Test results show that the voltage amplitude of lightning impulse reached 6271 kV,the withstand and breakdown voltage amplitude reached 3 844 kV and 4 845 kV respectively.The 7 200 kV/480 kJ impulse voltage generator can satisfy the test requirements for ±800 kV UHV DC and even higher voltage level UHVDC research work.

About this research paper

What this paper is about

The basic structure of 7 200 kV/480 kJ impulse voltage generator used in UHV DC test station of State Grid Corporation of China(SGCC) is presented.The output performance of lightning impulse,standard switching impulse and 500 μs and 1 000 μs long wave front switching impulse voltage were tested.Test results show that the voltage amplitude of lightning impulse reached 6271 kV,the withstand and breakdown voltage amplitude reached 3 844 kV and 4 845 kV respectively.The 7 200 kV/480 kJ impulse voltage generator can satisfy the test requirements for ±800 kV UHV DC and even higher voltage level UHVDC research work.

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Available abstract

The basic structure of 7 200 kV/480 kJ impulse voltage generator used in UHV DC test station of State Grid Corporation of China(SGCC) is presented.The output performance of lightning impulse,standard switching impulse and 500 μs and 1 000 μs long wave front switching impulse voltage were tested.Test results show that the voltage amplitude of lightning impulse reached 6271 kV,the withstand and breakdown voltage amplitude reached 3 844 kV and 4 845 kV respectively.The 7 200 kV/480 kJ impulse voltage generator can satisfy the test requirements for ±800 kV UHV DC and even higher voltage level UHVDC research work.

Key concepts: Impulse generator, Impulse (physics), Voltage, Electrical engineering, Amplitude, Generator (circuit theory), Engineering, Acoustics

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