问题:瓦斯保护是反映油箱内部气体状态和油位变化的继电保护。...
Thursday, December 19, 2024
Tuesday, December 17, 2024
Saturday, September 28, 2024
问题:中性点不接地系统发生单相接地故障后,允许继续运行的时间不得超过2小时。...
Wednesday, April 2, 2025
Saturday, June 28, 2025
Tuesday, May 13, 2025
Tuesday, May 13, 2025
Friday, March 15, 2024
Wednesday, April 2, 2025
问题:电压互感器一次绕组串联在供电系统中的一次电路中。...
Tuesday, May 13, 2025
问题:使用电流继电器从工作状态返回到起始状态的最小电流,称为继电器的返回电流。...
Tuesday, May 13, 2025
Saturday, June 28, 2025
问题:空气开关可以根据需要装设()、()、低电压和失压等保护装置。...
Sunday, January 26, 2025
Sunday, April 6, 2025
问题:中性点不接地系统发生单相接地故障,在接地点会流过接地电流是()电流,等于正常每相对地电容电流的()倍。...
Sunday, January 26, 2025
Saturday, June 28, 2025
Sunday, July 20, 2025
Saturday, June 28, 2025
Tuesday, May 13, 2025
问题:电压不同的线路同样架设时,电压较高的线路应架设在下面。...
Tuesday, May 13, 2025