问题:6kV手车开关不准停留在工作位置和试验位置之间的任何中间位置。...
Friday, September 16, 2022
问题:在中性点非直接接地电网中的高压电动机,当容量小于2000KW,而...
Tuesday, September 13, 2022
Friday, September 16, 2022
问题:变压器为满载的()时,效率最高。A、60%~80%B、70%~80%C、80%~90%D、90%~98%...
Wednesday, December 13, 2023
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:由三个频率相同、振幅相等、相位依次互差()的交流电势组成的电源,称()。...
Monday, January 29, 2024
Wednesday, May 10, 2023
Friday, September 16, 2022
问题:三相异步电动机定子绕组:是电动机的电路部分,通以三相交流电时便会...
Friday, September 16, 2022
问题:继电保护、自动装置做传动试验或一次通电时,应通知运行值班负责人,...
Friday, September 16, 2022
Friday, September 16, 2022
问题:电厂机组大修的作业负责人应具备()工技术水平,并配备安全负责人。...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Tuesday, September 13, 2022
问题:电流平衡保护不能应用在单侧电源平衡线路的受电端。...
Tuesday, December 20, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022