Friday, February 16, 2024
Friday, February 23, 2024
问题:带接地刀闸的隔离开关其主刀闸与接地刀闸应同时合上或拉开。
Wednesday, May 1, 2024
Monday, September 4, 2023
问题:开关电器分为以下四类::断路器、隔离开关、负荷开关、接触器。
Friday, February 16, 2024
问题:我国中性点接地方式有几种?为什么110kV以上电网采用中性点直接接地?110kV以下电网采用中性点不接地方式?而380/220V配电系统中性点直接接地?
Saturday, February 11, 2023
Sunday, March 3, 2024
问题:关于SF6气体的特性下列说法不正确的是()A、无色、无臭、不可燃的惰性气体B、有毒C、电负性气体D、灭弧能力很强
Thursday, April 18, 2024
Thursday, April 18, 2024
Wednesday, May 1, 2024
问题:输电线路始端电压或末端电压与线路额定电压的比值称为()。
Sunday, March 3, 2024
Wednesday, May 1, 2024
Sunday, March 3, 2024
问题:关于SF6气体的特性下列说法不正确的是()A、无色、无臭、不可燃的惰性气体B、有毒C、电负性气体D、灭弧能力很强
Friday, February 23, 2024
Thursday, April 18, 2024
Monday, September 4, 2023
Sunday, March 3, 2024
问题:什么叫电压降落?电压损耗?电压偏移?电压调整及输电效率?
Wednesday, May 1, 2024
Thursday, April 18, 2024