已知:厂用高压变压器高压侧系统阻抗为无穷大,接在B段的电动机负荷为21000kVA,电动机平均反馈电流倍数取6.ηcosμD取0.8,求B段的短路电流最接...

作者: rantiku 人气: - 评论: 0
问题
选项 已知:厂用高压变压器高压侧系统阻抗为无穷大,接在B段的电动机负荷为21000kVA,电动机平均反馈电流倍数取6.ηcosμD取0.8,求B段的短路电流最接近下列哪项值? (A)15.15kA (B)33.93kA (C)45.68kA (D)49.09kA
答案 D
解析 依据 DL/T5132-2002 附录 M

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