CRS型组合绝缘套管 |
组合绝缘套管与常规纯瓷套管相比,其优点如下: |
常规的纯瓷套管由带螺纹的导电杆(黄铜或紫铜)、瓷外套和绝缘油组成,套管的安装零件包含压圈和多个压块,将瓷法兰固定在变压器金属箱盖上。 COMEM组合绝缘套管芯体由铜导体与环氧树脂浇铸而成,芯体外部为硅橡胶伞套。 组合绝缘套管和纯瓷套管均应具有适当的机械、电气、热性能以满足变压器长期运行的要求,组合绝缘套管以其优异的性能成为更好的选择,详见下表: |
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CRS combined insulation bushing |
Why is a Combined Insulation Bushing better than a conventional porcelain bushing? |
A conventional bushing is composed of a conductor bolt (usually brass or copper), a porcelain insulating part, and oil. The fixing system is usually made through a collar flange + some pressure pieces that must be used in order to fix a porcelain flange to a metallic cover. In a Combined Insulation Bushing the conductor bolt is moulded inside an organic insulation resin block; afterwards the primary insulation layer is protected with a silicone rubber coat. |