摘要
结合宁夏750kV电网的建设和发展,分析了宁夏电网短路电流增加的趋势和原因,对电网分层分区运行、采用高阻抗变压器、安装限流电抗器等多种限流措施进行了探讨和分析。从措施实施的连续性、一致性出发,提出了宁夏电网2008—2020年综合限流方案,有关计算结果论证了该限流方案的有效性及合理性。
Taking the construction and development of 750 kV power network in Ningxia province as background, both reason and trend of enlargement of short-circuit currents were analyzed ; the measures which can limit short circuit currents were presented. They were power grid operation under district and voltage level classification, adopting transformer with high impedance and installing current limiter, etc. From the angle of measures＇ effectiveness and continuity to limit short circuit currents for the whole Ningxia power grid, limitation solution from 2008 to 2020 were put up, and its validity was proved by the calculation.
出处
《能源工程》
2008年第2期10-14,共5页
Energy Engineering
关键词
短路电流
超高压
限流措施
short-circuit current
UHV
limitation measure
