Sunday, September 11, 2022
问题:水导轴承主要承受什么载荷?()A、轴向B、斜向C、径向D、径向和轴向...
Thursday, August 29, 2024
Friday, October 14, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:水轮发电机组能够实现稳定运行,是因为它有()A、励磁机的调节B、调速器的调节C、电压校正器的调节D、自调节作用...
Tuesday, August 13, 2024
问题:万虎I线保护定检,写出用旁路保护代替该线路保护的主要操作步骤?...
Saturday, July 19, 2025
问题:在进行倒闸操作时,应首先检查断路器在断开位置后,先合()隔离开关...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
问题:LW6—220H SF6断路器液压机构启、停油泵及闭锁合、跳闸的油压各是多少?额定油压是多少?(20℃时)...
Saturday, June 8, 2024
Sunday, September 11, 2022
Sunday, September 11, 2022
Thursday, August 29, 2024
问题:同步发电机的三种不正常运行状态为过负荷、过电流、过电压。...
Sunday, September 11, 2022
问题:如果发电机的电压表、电流表、功率表周期性的剧烈摆动,就可以肯定发...
Sunday, September 11, 2022
问题:如果发电机的电压表、电流表、功率表周期性的剧烈摆动,就可以肯定发生了电振荡。...
Friday, December 27, 2024
Sunday, September 11, 2022
问题:发生水锤时,闸门处的水锤压强幅值变化大持续时间强,所以这里所受的...
Sunday, September 11, 2022