集中补偿,这种补偿方式是将电力电容器安装在变配电所内。...
Thursday, September 15, 2022
磁性材料按其特性不同,分为软磁材料和硬磁材料两大类,硬磁材料的主...
Friday, September 16, 2022
Thursday, September 15, 2022
Friday, September 16, 2022
()是反应电压下降到某一整定值及以下动断接点由断开状态到闭合状态...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Sunday, September 11, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
若工作负责人必须长时间离开工作现场时,原工作票签发人变更工作负责...
Saturday, September 17, 2022
漏电断路器在被保护电路中有漏电或有人触电时,零序电流互感器就产生...
Friday, September 16, 2022
Friday, September 16, 2022
在低压配电盘上工作,必须装设防止()事故发生的隔离措施。...
Tuesday, September 13, 2022
软梯的安全系数不得小于().()因挂在可靠的支持物上。...
Tuesday, September 13, 2022
炮响后,因详细检查是否有()单必须等待()min后,方可回到()...
Friday, September 16, 2022
钢筋混凝土杆使用最多的是锥形杆,其锥度一般为1/75。...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
额定转子电流I<sub>b</sub>表示在额定千伏安出力时转...
Friday, September 16, 2022
Friday, September 16, 2022
Tuesday, September 13, 2022