Monday, September 12, 2022
问题:离心泵中水力损失对扬程的影响因素有过流()和()。...
Saturday, September 17, 2022
Saturday, September 17, 2022
Monday, September 12, 2022
问题:为了保证电流互感器的准确度,应使接于电流互感器二次回路元件的总阻...
Monday, September 12, 2022
Saturday, September 17, 2022
问题:除氧器水位高,可以通过()放水,除氧器水位低到规定值联跳()。...
Monday, September 12, 2022
问题:热力除氧必须要将水加热到对应压力下的饱和温度才能出去()。...
Saturday, September 17, 2022
问题:110kV及以下原因不明的开关保护误动,造成电力安全四级事件。...
Saturday, September 17, 2022
问题:禁止使用隔离开关或取下高压熔断器的方法退出故障电压互感器...
Monday, August 14, 2023
问题:220kV电压互感器二次熔断器上并联电容器的作用是()。...
Saturday, September 17, 2022
Monday, September 12, 2022
问题:对同一电网内的同一电压等级、同一用电类别的用户,执行相同的电价标...
Saturday, September 17, 2022
问题:为防止发电机内部结露,发电机最低入口冷却气体温度不能低于()℃。...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:电力系统中的主要负载是异步电动机和变压器。这些设备均从电网汲取大...
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:高、低压加热器随机启动有利于减少上下汽缸的温差。...
Saturday, September 17, 2022