烷基联苯和烷基萘类绝缘油具有优异的电气和物理性能,为国际上广泛采用。这些芳烃类绝缘油的介质损耗和击穿电压都较为理想,可是电晕放电电压,塑料膜对于这种浸渍料的耐溶胀性、吸气性及浸渍后电容器的寿命尚不够理想。为了改进这些性能,日本等 Alkyl biphenyl and alkyl naphthalene insulating oil has excellent electrical and physical properties, is widely used internationally. Dielectric loss and breakdown voltage of these aromatic oil are ideal, but the corona discharge voltage, plastic film swelling resistance for this impregnation material, aspiration and capacitor life after immersion is not ideal. In order to improve these properties, Japan and so on