Metal Oxide Arrester (MOA) plays a very important role in power system, and the dielectric loss factor is an important parameter to reflect the insulation condition.

• 氧化锌避雷器(MOA)在电力系统中占有相当大的比例，而氧化锌避雷器阀片的介质损耗因数是反映其绝缘状况的重要参数。