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公开(公告)号：US10179594B2
公开(公告)日：2019-01-15
申请号：US15109738
申请日：2014-06-24
发明人： Sha Li , Guangdan Liu , Leren Wang , Xiaoqing Shen , Jiangfeng Liu
摘要： An anti-pollution-flashover locomotive roof composite insulator, comprising: a support body, and several groups of sheds arranged side by side along the axial direction that are set around the sidewall of the support body, wherein the sheds protrude out of the sidewall of the support body along the radial direction, the upper end of the uppermost shed is set with an upper metal fitting, and the lower end of the lowermost shed is set with a lower metal fitting. The creepage distance of the sheds between the upper metal fitting and the lower metal fitting is 1085 mm-1095 mm, and the arcing distance between the upper metal fitting and the lower metal fitting is 245 mm-255 mm. The insulator employs a long specific creepage distance in terms of structural design, thus providing a good pollution flashover resistance, and under the same pollution condition, a good pollution flashover resistance that is over twice of that of a porcelain insulator with the same creepage distance may be obtained, and hence it is especially applicable for moderate and serious polluted regions.
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公开(公告)号：US20160325764A1
公开(公告)日：2016-11-10
申请号：US15109738
申请日：2014-06-24
发明人： Sha LI , Guangdan LIU , Leren WANG , Xiaoqing SHEN , Jiangfeng LIU
摘要： An anti-pollution-flashover locomotive roof composite insulator, comprising: a support body, and several groups of sheds arranged side by side along the axial direction that are set around the sidewall of the support body, wherein the sheds protrude out of the sidewall of the support body along the radial direction, the upper end of the uppermost shed is set with an upper metal fitting, and the lower end of the lowermost shed is set with a lower metal fitting. The creepage distance of the sheds between the upper metal fitting and the lower metal fitting is 1085 mm-1095 mm, and the arcing distance between the upper metal fitting and the lower metal fitting is 245 mm-255 mm. The insulator employs a long specific creepage distance in terms of structural design, thus providing a good pollution flashover resistance, and under the same pollution condition, a good pollution flashover resistance that is over twice of that of a porcelain insulator with the same creepage distance may be obtained, and hence it is especially applicable for moderate and serious polluted regions.
摘要翻译： 一种抗污染闪络机车屋顶复合绝缘子，包括：支撑体和沿着轴向方向并排设置的围绕支撑体侧壁设置的多组棚，其中，棚口从侧壁突出， 支撑体沿径向方向，最上端的上端设置有上金属配件，并且最下面的棚的下端设置有下金属配件。 上金属配件和下金属配件之间的走廊爬电距离为1085 mm-1095 mm，上金属配件与下金属配件之间的电弧距离为245 mm-255 mm。 绝缘体在结构设计方面具有长的特异性爬电距离，因此提供良好的污染闪络电阻，并且在相同的污染条件下，具有相同爬电距离的瓷绝缘体的两倍以上的良好的污染闪络电阻可以 得到，因此特别适用于中度和重度污染地区。
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公开(公告)号：US20160325763A1
公开(公告)日：2016-11-10
申请号：US15108005
申请日：2014-06-24
发明人： Sha LI , Guangdan LIU , Leren WANG , Xiaoqing SHEN , Jiangfeng LIU
CPC分类号： B61C17/00 , B61C3/00 , H01B17/14 , H01B17/525 , H01B17/56
摘要： An interface breakdown-proof locomotive roof composite insulator. The composite insulator comprises: a support body; and at least five shed groups arranged side by side along the axial direction that are provided around the sidewall of the support body, the at least five shed groups includes: at least four shed groups located on the upper end with each group including a large shed and a small shed; and at least one shed group located on the undermost end with each group including two small sheds. For such a shed structure, it is favorable to tolerate impulse voltage, and it is difficult for the interface to be broken down; the electric field on the interface even does not exceed 3 kV/mm, and even if a gas exists on the interface, it will not break through the interface.
摘要翻译： 一种接口防破坏机车屋顶复合绝缘子。 复合绝缘体包括：支撑体; 以及设置在所述支撑体的侧壁周围的沿着轴向方向并排设置的至少五个棚屋组，所述至少五个棚棚组包括：位于上端的至少四个棚屋组，每组包括大棚 和一个小棚子 以及位于最下端的至少一个棚屋组，每组包括两个小棚屋。 对于这种棚结构，有利于耐受脉冲电压，并且界面难以分解; 接口上的电场甚至不超过3 kV / mm，即使界面上有气体，也不会突破界面。
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公开(公告)号：US09828005B2
公开(公告)日：2017-11-28
申请号：US15108005
申请日：2014-06-24
发明人： Sha Li , Guangdan Liu , Leren Wang , Xiaoqing Shen , Jiangfeng Liu
CPC分类号： B61C17/00 , B61C3/00 , H01B17/14 , H01B17/525 , H01B17/56
摘要： An interface breakdown-proof locomotive roof composite insulator. The composite insulator comprises: a support body; and at least five shed groups arranged side by side along the axial direction that are provided around the sidewall of the support body, the at least five shed groups includes: at least four shed groups located on the upper end with each group including a large shed and a small shed; and at least one shed group located on the undermost end with each group including two small sheds. For such a shed structure, it is favorable to tolerate impulse voltage, and it is difficult for the interface to be broken down; the electric field on the interface even does not exceed 3 kV/mm, and even if a gas exists on the interface, it will not break through the interface.
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