Tuesday, July 11, 2023
问题:设备检修实行三级验收后,可不再进行全面检查验收。...
Thursday, January 11, 2024
问题:摇表是测量()的设备,有()V()V()V三种,...
Friday, September 16, 2022
问题:由于短路后线路的阻抗比正常运行时线路的阻抗小,故短路电流比正常运...
Friday, September 16, 2022
问题:最大运行方式是指被保护系统等值电源阻抗最大、短路电流最小的运行方式。...
Tuesday, October 10, 2023
问题:用电设备的工作制分为()工作制()工作制()工作制。...
Friday, September 16, 2022
Tuesday, October 10, 2023
问题:变(配)电所的接地装置一般每年检查一次;接地电阻应小于()欧姆...
Friday, September 16, 2022
问题:安装调整碳刷时,其电刷接触面应与()的弧度相吻合,接触面积不应小于单个碳刷截面积的()...
Tuesday, July 11, 2023
问题:35KV以上的电力变压器,在10~30℃时测量线圈连同套管一起的吸收比应不低于()A、1.0B、1.1C、1.3...
Wednesday, December 27, 2023
Monday, December 18, 2023
问题:在易燃、易爆场所带电作业时,只要注意安全,防止触电,一般不会发生危险。...
Thursday, November 23, 2023
Thursday, January 11, 2024
Sunday, September 24, 2023
问题:电压互感器的误差与二次回路的阻抗有关,并伴随着阻抗值的变化在()A、阻抗值增大时,误差减少B、阻抗值减少时,误差随之增大C、阻抗值增大、减小都超出一定值后,误差才超出规定。...
Thursday, November 23, 2023
Tuesday, September 13, 2022
Monday, December 18, 2023
Friday, September 16, 2022
问题:电气设备的操作状态分为()状态,()状态,()状态,()状态。...
Friday, September 16, 2022
Friday, March 1, 2024