【判断题】【消耗次数:1】
变压器的变比可看作额定线电压之比。
正确
错误
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相关题目
【单选题】 变压器副边额定电压是变压器原边加额定电压,副边()
①  空载相电压
②  空载线电压
③  额定负载相电压
④  额定负载线电压
【单选题】 变压器二额定电压是( )。
①  一次有额定电流时的电压
②  一次有额定电压,二次空载时的电压
③  一次有额定电压,二次有额定负载的电压
④  二次额定负载下的电压
【单选题】 近似计算法中,变压器的变比应采用()。
①  实际变比
②  额定变比
③  平均额定变比
【单选题】 当变压器的电压比大于1 时,变压器为( )。
①  升压变压器
②  加压变压器
③  降压变压器
【判断题】 变压器的额定容量就是原绕组的额定电压与额定电流的乘积
①  正确
②  错误
【判断题】 变压器能变电压也可以变电流、变阻抗。
①  正确
②  错误
【判断题】 变压器的额定容量是指变压器输出的视在功率。
①  正确
②  错误
【判断题】 变压器的作用是变电压、变电流、变阻抗、变相位?
①  正确
②  错误
【单选题】 自耦变压器的电压比一般不超过()
①  1.0~1.5
②  1.5~2.0
③  2.0~2.5
④  2.5~3.0
【判断题】 变压器一次侧接额定电压不变,则负载的主磁通比空载的主磁通略小().
①  正确
②  错误
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