用摇表测量设备的对地绝缘电阻时,通过被测电阻的电流是()。...
Saturday, September 17, 2022
发电机空载运行时,晶闸管励磁调节器超调量不得超过()。...
Sunday, September 11, 2022
在接力器关闭和开启时间调整时,当接力移动时,记录接力器在25%~...
Saturday, September 17, 2022
Saturday, September 17, 2022
正常运行时,测得PT二次开口三角形电压为两倍相电压,是因为()。...
Sunday, September 11, 2022
为防止失磁保护拒动,应在外部短路、系统振荡、电压回路断线等情况下...
Saturday, September 17, 2022
Tuesday, September 13, 2022
Saturday, September 17, 2022
处理220V照明回路中灯不亮故障时,验电发现火线和零线都有电,原...
Saturday, September 17, 2022
在进行PSS试验时,被试机组的有功应大于()额定有功功率,无功应...
Sunday, September 11, 2022
Saturday, September 17, 2022
Sunday, September 11, 2022
带负荷进行调节器通道切换试验是为了验证发电机在并网条件下通道切换...
Sunday, September 11, 2022
Sunday, February 5, 2023
备用电源和备用设备自动投入装置的动作时间的确定,是以使负荷的停电...
Saturday, September 17, 2022
励磁控制系统在额定负载状态下运行,自动电压调节器的无功补偿单元退...
Saturday, September 17, 2022
Saturday, September 17, 2022
在对电磁阀进行试验时,对不允许长期通电的电磁阀,其通电时间应尽可...
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022