Thursday, April 4, 2024
Saturday, March 9, 2024
Friday, March 15, 2024
问题:当架立线路与其它线路交叉跨越时,电压高的线路应架设在下方。...
Thursday, April 4, 2024
Saturday, March 9, 2024
问题:瓦斯保护是反映油箱内部气体状态和油位变化的继电保护。...
Saturday, February 10, 2024
Tuesday, September 13, 2022
Sunday, November 26, 2023
问题:单相接地短路是最常见的故障,引起的危害也最严重。...
Friday, October 13, 2023
问题:农村高压配电线路,常用的接线方式有:()、()、()。...
Monday, February 19, 2024
Tuesday, December 20, 2022
问题:我国电力系统的额定频率为()Hz,也就是工业用电的标准频率,简称()。...
Friday, March 15, 2024
Monday, February 19, 2024
Friday, March 15, 2024
Friday, March 15, 2024
问题:短路的类型有:()短路、()短路、单相短路和两相接地短路。...
Saturday, February 10, 2024
Saturday, February 10, 2024
Wednesday, February 14, 2024
问题:当突然短路时大约经过多长时间会出现冲击电流?冲击电流约为短路电流的多少倍?...
Friday, March 15, 2024
Monday, February 19, 2024