对于额定电压为380伏,额定功率大于3千瓦,且小于10000千瓦的交流电机,总装后定 发布时间:2019-01-25 22:04 │ 来源:www.tikuol.com 题型:单项选择题 问题: 对于额定电压为380伏,额定功率大于3千瓦,且小于10000千瓦的交流电机,总装后定子绕组耐压试验电压为()。A.2.5UNB.2UNC.2UN+1000V
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