Research of Installing Small Reactors on Neutral Points of 500 KV Autotransformers and the Analysis of Overvoltage

Abstract:

Article Preview

Because of the extensive application of autotransformer in 500 kV power grid, the value of single-phase short-circuit current is generally greater than that of three-phase short-circuit current, or even greater than the maximum rated through current of the breaker. In order to reduce single-phase short-circuit current and avoid implement of bus split, this paper proposes to install small reactors on neutral points of 500 kV autotransformers. By analyzing and calculating the effect on short-circuit current limitation, the most suitable impedance value of small reactor is proposed. In addition,the overvoltage of the neutral point and insulation coordination are particularly discussed.

Info:

Periodical:

Edited by:

Shengyi Li, Yingchun Liu, Rongbo Zhu, Hongguang Li, Wensi Ding

Pages:

1609-1613

DOI:

10.4028/www.scientific.net/AMM.34-35.1609

Citation:

Y. J. Li "Research of Installing Small Reactors on Neutral Points of 500 KV Autotransformers and the Analysis of Overvoltage", Applied Mechanics and Materials, Vols. 34-35, pp. 1609-1613, 2010

Online since:

October 2010

Authors:

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.