The seal box provides over pressurization protection for the absorber. 密封箱还起着对吸收塔过压保护的作用。
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。