为保证设备和人员安全，必需设置过电压保护。
To assure person and device, the overvoltage protection is necessary.
而雷电事故主要出现在没有安装过电压保护器的杆塔处。
And lightning accident main without installing overvoltage protector tower.
只有在每柱每相上安装过电压保护器才能得到好的保护效果。
Only in each column over-voltage protector installed on each phase can get good protection effect.
过电压保护在电子、电工和设备系统中是一个重要的研究领域。
Over-voltage protection is an important research area in electrical, electronic, and many equipment systems.
输出保护功能：过电压，过功率，短路。
The output protection function: over voltage, over power, and over short circuit.
输出保护功能：过电压，过功率，短路。
The output protection function: over voltage, over power, and over short circuit.
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