一般汽轮发电机在额定负荷下运行时,功率角δ约为30~35°。()...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Saturday, June 10, 2023
电缆的敷设方式有直接埋地敷设、()、沿墙敷设、()和隧道敷设等。...
Tuesday, September 13, 2022
Friday, September 16, 2022
接闪器检查时应检查接闪器与建筑物顶部外露的其他的()电气连接、与()电气连接,全部设施等电位连接。...
Tuesday, December 13, 2022
母线加工后。截面的减小值对于铜母线不应超过原截面的()。A、2%B、3%C、2.5%D、5%...
Sunday, June 25, 2023
Friday, September 16, 2022
Thursday, December 21, 2023
水冷发电机转子系统的供水总压力,等于将水甩出的离心压力与转子进水...
Friday, September 16, 2022
一台10kW电动机由自动空气开关控制,其电磁脱扣器的瞬时动作整定...
Friday, September 16, 2022
当发电机的电压下降至低于额定值的95%时,定子电流长时期允许值的数值仍不得超过额定值。()...
Thursday, December 21, 2023
重新更换电动机定子线圈时,即在接线后浸漆前应对定子绕组的嵌装接线...
Tuesday, September 13, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
异步电动机产生不正常的振动和异常的声音,主要有()和()两方面的原因。...
Thursday, August 10, 2023
Friday, September 16, 2022
Tuesday, September 13, 2022