某发电厂主变压器容量为750MVA,550-2X2.5/22kV,Ud=14%,Yd0。主变压器高压侧经架空软导线和500kV相连,环境最髙温度为+40℃...

作者: rantiku 人气: - 评论: 0
问题 某发电厂主变压器容量为750MVA,550-2X2.5/22kV,Ud=14%,Yd0。主变压器高压侧经架空软导线和500kV相连,环境最髙温度为+40℃,海拔髙度为400m。 主变压器进线回路导线选择2 (LGKK-600),经校正后的载流量为()。 A.2408A; B.2143A; C.2030A; D.1830
选项 A。
答案 C
解析 査DL/T 5222—2005附录D表Dl8,2XLGKK-600导线经校正的载流量为2X1223X0.83=2030(A)。

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