在做变压器油中溶解气体色谱分析试验时,若发现总烃的含量超过()时...
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
隔离开关与断路器之间的联锁,应保证断路器在合闸位置时不能合上或拉...
Sunday, September 11, 2022
Saturday, September 17, 2022
Friday, September 16, 2022
移动式电气设备的保护零线(或地线)应离开相线单独敷设。...
Friday, September 16, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
Saturday, September 10, 2022
Friday, September 16, 2022
移动式电气设备电源线路经常()而损坏,故采用高强度铜芯橡皮护套软...
Sunday, September 11, 2022
三相双速异步电动机高速运转时,定子绕组出线端的连接方式应为()。...
Friday, September 16, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
氧化锌避雷器的额定电压不等于系统电压,通常情况下()系统额定电压...
Friday, September 16, 2022
移相电容期的直接作用上并联在线路上提高线路的(),因此也称为并联...
Friday, September 16, 2022
禁止标志含义是不准或制止人们的某些行动与行为。它的几何图形是带斜...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022