Sunday, September 11, 2022
Sunday, March 26, 2023
特殊情况下可将有拒绝分闸缺陷或严重SF6漏气异常的断路器投运。...
Sunday, September 11, 2022
Sunday, September 11, 2022
用来分离压缩空气中所含的油分和水分,使压缩空气得到初步净化的设备...
Sunday, September 11, 2022
Sunday, September 11, 2022
有一个三相电动机,当绕组联成星形接于()的三相电源上,或绕组联成...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
主变差动与瓦斯保护的作用有哪些区别?如变压器内部故障时两种保护是否都能反映出来?...
Sunday, December 17, 2023
反击式水轮发电机组停机时机械和电气制动装置都不能使用,则()A、事故停机B、重新开启机组C、自由制动D、允许机组在低转速下继续运转...
Monday, January 30, 2023
Saturday, October 1, 2022
Sunday, September 11, 2022
当调速器电气柜发生故障时,调速器会自动转为机械手动方式运行, 机...
Sunday, September 11, 2022
限制操作过电压的措施,下列哪种说法是对的?()A、开关灭弧能力强、同期性好、断口加电阻;B、采用氧化锌避雷器;C、电网的中性点直接接地;D、上述方法都是...
Saturday, March 18, 2023
Sunday, September 11, 2022
Monday, January 29, 2024
Sunday, September 11, 2022
用钳型电流表测量三相对称电路电流,若将三相导线均放入钳口中,电流...
Sunday, September 11, 2022