试题与答案

设某工厂变电所380V侧母线上接有380V感应电动机250kW,平均cosφ=0.7

题型:问答题 案例分析题

题目:

设某工厂变电所380V侧母线上接有380V感应电动机250kW,平均cosφ=0.7,效率ηn=0.75。该母线采用LMY一100×10的硬铝母线,水平平放,档距为900mm,档数大于2,相邻两相母线的轴间距离为160mm。试求该母线三相短路时所受的最大电动力,并校验其动稳定性。

答案:

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