Saturday, April 13, 2024
问题:用双重化配置方式加强元件本身的保护,使之在区内故障时,保护无拒绝...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:对于双回或多回线路、环网线路,应以线路的()故障作为稳定校核的主要故障类型。...
Monday, March 25, 2024
问题:在220kV双母线运行方式下,当任一组母线故障,母线差动保护动作而母联断路器拒动时,母差保护将无法切除故障,这时需由断路器()保护或()保护来切除非故障母线。...
Saturday, October 8, 2022
Friday, September 16, 2022
Wednesday, March 6, 2024
问题:单相有功电能表共有四个外部接线端子,第二个接线端子()。...
Friday, September 16, 2022
Friday, September 16, 2022
问题:电力系统潮流计算时,有源节点可分为PQ节点、()节点和()节点。...
Saturday, November 4, 2023
问题:根据节能发电调度办法,同类型火力发电机组首先按照()由低到高排序。...
Thursday, December 22, 2022
Thursday, April 4, 2024
问题:电网设置解列点的原则是什么?什么情况下应能实现自动解列?...
Tuesday, September 13, 2022
问题:变压器中性点间隙接地保护采用()继电器和()继电器并联方式,带有...
Friday, September 16, 2022
问题:为加快两个电网的并列,允许两个电网的频率稳定在()Hz之间任一值就可并列。...
Tuesday, April 9, 2024
Friday, September 16, 2022