过电压
And also, it has many other functions include islanding detection and avoiding, over voltage protection, over current protection and so on. 此逆变器还具有其他功能，包括孤岛效应，过电压欠电压保护，过流保护等等。
Adoption of higher voltage class makes more rigor request for allowable value of switching overvoltage of the transmission lines. 电网电压等级的提高对输电线路操作过电压允许值提出了更加严格的要求。
