摘要
阐述选择12kV、40.5kV开关设备的绝缘水平时,不仅要考虑所处电力系统最高运行电压,而且还要考虑工频耐压和雷电冲击耐压,其水平还与当地电力系统接地形式有关。强调选择外国中压设备时要与中国当地实际情况相结合。
The article presents that 12kV, 40.5kV switch's insu-lation level is dependent on the highest operated voltage, power-fre-quency withstand voltage and lightning impulse withstand voltage, as well as the earthed type of power system. It emphasises that over-seas medium voltage equipments must integrate with local situation.
出处
《建筑电气》
2000年第1期7-8,共2页
Building Electricity
关键词
中压开关
绝缘水平
工频耐压
12kV, 40.5kV switch Insulation level Power-fre quency withstand voltage Lightning impulse withstand voltage
