CN216928258U - Special supporting insulating device of 220kV transformer 10kV side outlet wire sleeve - Google Patents
Special supporting insulating device of 220kV transformer 10kV side outlet wire sleeve Download PDFInfo
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Abstract
本发明公开了一种220kV变压器10kV侧出线套管专用配套绝缘装置,其包括:帽式结构的绝缘罩(1)以及与所述绝缘罩(1)插动连接的绝缘装置配件(6);所述绝缘罩(1)的上半部分为圆柱体结构的绝缘罩主体(2),所述绝缘罩主体(2)的侧壁设置有贯通的第一试验孔(4)与第二试验孔(5),所述绝缘罩主体(2)的下半部分为伞状结构的绝缘罩伞裙(3);所述绝缘装置配件(6)包括配件主板(7),所述配件主板(7)的侧面设置有第一插头(8)、第二插头(9)。本发明可通过旋转的方式安装在10kV侧套管的导电杆上,完美实现了套管的绝缘密封处理;同时在变压器停电检修试验需要将导体露出时,具有无需拆装该装置的便利优势,显著提高工作效率。
The invention discloses a special matching insulating device for a 10kV side outlet bushing of a 220kV transformer, comprising: an insulating cover (1) with a hat-type structure and an insulating device fitting (6) that is plug-and-connected with the insulating cover (1); The upper half of the insulating cover (1) is an insulating cover main body (2) with a cylindrical structure, and the side wall of the insulating cover main body (2) is provided with a first test hole (4) and a second test hole that pass through (5), the lower half of the insulating cover main body (2) is an insulating cover shed (3) with an umbrella-like structure; the insulating device accessories (6) include an accessory main board (7), and the accessory main board (7) ) is provided with a first plug (8) and a second plug (9). The invention can be installed on the conductive rod of the 10kV side bushing in a rotating way, which perfectly realizes the insulation and sealing treatment of the bushing; at the same time, when the conductor needs to be exposed during the power outage maintenance test of the transformer, it has the convenient advantage of not needing to disassemble and assemble the device, Significantly improve work efficiency.
Description
技术领域technical field
本发明涉及变压器出线套管绝缘装置领域,尤其涉及一种220kV变压器10kV侧出线套管专用配套绝缘装置。The invention relates to the field of insulation devices for transformer outlet bushings, in particular to a special matching insulation device for 10kV side outlet bushings of 220kV transformers.
背景技术Background technique
现今辽宁省大连市电网220kV变压器10kV侧绝大多数不带负荷,即10kV侧只有三支出线套管和接线端子,没有接出线母排,变压器运行时10kV侧始终处于空载状态,其10kV侧出线套管端子的处理方式均作绝缘处理,a相、c相悬空,其b相可靠接地。其处理方式主要分为两种:在出线端子的铜排上加装绝缘罩;在出线端子的铜排裸露部分用绝缘胶布进行包裹密封处理。At present, most of the 220kV transformers on the 10kV side of the 220kV power grid in Dalian, Liaoning Province have no load, that is, there are only three outgoing line bushings and terminals on the 10kV side, and no outgoing busbars are connected. The processing methods of the outgoing bushing terminals are all insulated, the a-phase and c-phase are suspended, and the b-phase is reliably grounded. The treatment methods are mainly divided into two types: installing an insulating cover on the copper bar of the outgoing terminal; wrapping and sealing the exposed part of the copper bar of the outgoing terminal with insulating tape.
以上两种处理方式均存在一定的缺陷。第一种方式所应用的绝缘罩存在设计缺陷,在尺寸设计不合理的同时,使用绝缘扣进行装置的固定,致使绝缘罩极易脱落,且加装之后存在较大的缝隙,密封性和绝缘强度得不到保证。导致变压器在运行过程中10kV侧容易受到不良气候、小动物等的影响造成变压器两相或三相出口短路,对变压器乃至整个电网安全稳定运行构成极大威胁。第二种处理方式虽然保证了密封性和绝缘强度,但属于一次性应用,安装和拆卸都非常繁琐,消耗人力物力,影响作业效率。因此十分需要一种装卸方便快捷,同时又能良好的保证绝缘性和密闭性的装置,来满足变压器10kV侧套管运行和检修试验的需求。Both of the above two processing methods have certain defects. The insulating cover used in the first method has design defects. When the size design is unreasonable, the insulating buckle is used to fix the device, which makes the insulating cover easy to fall off, and there is a large gap after installation. Strength is not guaranteed. As a result, the 10kV side of the transformer is easily affected by bad weather, small animals, etc. during the operation process, resulting in a short circuit at the two-phase or three-phase outlet of the transformer, which poses a great threat to the safe and stable operation of the transformer and the entire power grid. Although the second treatment method ensures the sealing and insulation strength, it is a one-time application, and the installation and disassembly are very cumbersome, which consumes manpower and material resources and affects the operation efficiency. Therefore, there is a great need for a device that is convenient and quick to load and unload, and at the same time can ensure good insulation and airtightness, so as to meet the needs of the operation and maintenance test of the 10kV side bushing of the transformer.
发明内容SUMMARY OF THE INVENTION
本发明针对上述问题,提供一种装卸便捷,具有良好的绝缘性能与密封性的变压器10kV侧套管绝缘装置,能够安全可靠的保证变压器10kV侧运行中不受外界因素的影响,同时有效提升检修试验效率。Aiming at the above problems, the present invention provides a transformer 10kV side bushing insulation device with convenient loading and unloading, good insulation performance and tightness, which can safely and reliably ensure that the operation of the transformer 10kV side is not affected by external factors, and at the same time effectively improves maintenance. Test efficiency.
为了达到上述目的,本发明提供了一种220kV变压器10kV侧出线套管专用配套绝缘装置,所述绝缘装置包括:帽式结构的绝缘罩以及与所述绝缘罩插动连接的绝缘装置配件;In order to achieve the above purpose, the present invention provides a special matching insulating device for the 10kV side outlet bushing of a 220kV transformer, the insulating device includes: an insulating cover with a hat-type structure and an insulating device accessory that is inserted and connected to the insulating cover;
所述绝缘罩的上半部分为圆柱体结构的绝缘罩主体,所述绝缘罩主体的侧壁设置有贯通的第一试验孔与第二试验孔,所述绝缘罩主体的下半部分为伞状结构的绝缘罩伞裙;The upper half of the insulating cover is an insulating cover main body with a cylindrical structure, the side wall of the insulating cover main body is provided with a first test hole and a second test hole that pass through, and the lower half of the insulating cover main body is an umbrella Insulation cover umbrella skirt of like structure;
所述绝缘装置配件包括配件主板,所述配件主板的侧面设置有与所述第一试验孔插动连接的第一插头、与所述第二试验孔插动连接的第二插头。The insulating device accessory includes an accessory mainboard, and a side of the accessory mainboard is provided with a first plug connected to the first test hole and a second plug connected to the second test hole.
优选方式下,所述绝缘罩采用弹性硅橡胶材质。In a preferred manner, the insulating cover is made of elastic silicone rubber.
优选方式下,所述绝缘装置配件包括两组不同材质的配件,一组为用于变压器正常运行时对所述绝缘装置进行绝缘密封的PVC材质配件,另一组为用于停电检修时对变压器检修试验的铜制配件。In a preferred manner, the insulating device accessories include two sets of accessories with different materials, one is PVC material accessories used for insulating and sealing the insulating device during the normal operation of the transformer, and the other is used for the transformer during power outage maintenance. Brass fittings for service testing.
优选方式下,所述绝缘罩主体的内部为带有内螺纹的漏斗形中空结构。In a preferred manner, the interior of the insulating cover body is a funnel-shaped hollow structure with internal threads.
优选方式下,绝缘罩伞裙的内部为伞状中空结构,所述绝缘罩伞裙的伞裙尾端采用内包裹结构。In a preferred manner, the interior of the insulating cover shed is an umbrella-shaped hollow structure, and the tail end of the shed of the insulating cover shed adopts an inner wrapping structure.
本发明的有益效果为:本发明应用于现在入网的220kV三卷线变压器不投入使用的10kV侧,加装本发明所述绝缘装置使裸露的导体部分具有可靠的绝缘强度、密封性,而且降低变压器10kV侧出口短路的风险。The beneficial effects of the present invention are as follows: the present invention is applied to the 10kV side where the 220kV three-winding transformer currently connected to the network is not put into use, and the insulating device of the present invention is installed so that the exposed conductor part has reliable dielectric strength and sealing, and reduces the Risk of short circuit at the outlet of the 10kV side of the transformer.
附图说明Description of drawings
图1为本发明的绝缘罩的结构示意图;1 is a schematic structural diagram of an insulating cover of the present invention;
图2为本发明的绝缘装置配件的主视图;Fig. 2 is the front view of the insulating device fitting of the present invention;
图3为本发明的绝缘装置配件的左视图;Fig. 3 is the left side view of the insulating device fitting of the present invention;
图4为本发明的绝缘装置配件的俯视图;Fig. 4 is the top view of the insulating device fitting of the present invention;
图5为本发明的绝缘装置的安装示意图。FIG. 5 is a schematic diagram of the installation of the insulating device of the present invention.
图中:1、绝缘罩,2、绝缘罩主体,3、绝缘罩伞裙,4、第一试验孔,5、第二试验孔,6、绝缘装置配件,7、配件主板,8、第一插头,9、第二插头。In the figure: 1. Insulation cover, 2. Main body of insulation cover, 3. Insulation cover shed, 4. First test hole, 5. Second test hole, 6. Insulation device accessories, 7. Main board of accessories, 8. First Plug, 9, the second plug.
具体实施方式Detailed ways
具体实施例:Specific examples:
参见图1-4,本发明公开了一种拆装便捷、绝缘强度高、密闭性良好,同时无需在变压器停电检修时进行拆卸即可完成对变压器的例行试验的新型220kV变压器10kV侧出线套管专用配套绝缘装置,其包括:帽式结构的绝缘罩1以及与所述绝缘罩1插动连接的绝缘装置配件6;Referring to Figures 1-4, the present invention discloses a new 220kV transformer 10kV side outlet bushing which is convenient for disassembly and assembly, high in insulation strength, good in airtightness, and can complete routine tests on the transformer without disassembly during power outage maintenance. A matching insulating device for pipes, which includes: an
所述绝缘罩1的上半部分为圆柱体结构的绝缘罩主体2,所述绝缘罩主体2的侧壁设置有贯通的第一试验孔4与第二试验孔5,所述绝缘罩主体2的下半部分为伞状结构的绝缘罩伞裙3。The upper half of the
如图2-4所示,所述绝缘装置配件6包括配件主板7,所述配件主板7的侧面设置有与所述第一试验孔4插动连接的第一插头8、与所述第二试验孔5插动连接的第二插头9。As shown in FIGS. 2-4 , the
所述绝缘罩1采用弹性硅橡胶材质,具有良好的绝缘性能、抗老化性能和一定的柔韧性。The insulating
所述绝缘装置配件6包括两组不同材质的配件,一组为用于变压器正常运行时对所述绝缘装置进行绝缘密封的PVC材质配件,另一组为用于停电检修时实现无需拆卸装置对变压器进行检修试验的铜制配件。The
如图1所示,所述绝缘罩主体2的内部为带有内螺纹的漏斗形中空结构,用来实现对不同直径的套管导电杆部分的贴合。As shown in FIG. 1 , the inside of the insulating cover
如图1所示,绝缘罩伞裙3的内部为伞状中空结构,所述绝缘罩伞裙3的伞裙尾端采用内包裹结构,用来实现与套管瓷裙部分的贴合,保证装置的密封性能。As shown in FIG. 1 , the inside of the
使用时将变压器10kV侧套管的上接线板与紧固件拆除,将本发明所述绝缘装置旋在套管的导电杆处。将套管瓷裙擦拭干净,保证绝缘装置底部与瓷裙可靠贴合。当变压器运行时将PVC材质的绝缘装置配件6置入绝缘罩1的第一试验孔4和第二试验孔5处,此时整套装置将套管与外部完全绝缘,就能确保变压器在运行时10kV侧不会发生相间短路。当变压器进行停电检修时,取出PVC材质的绝缘装置配件6,将铜制的绝缘装置配件6配件置于绝缘罩1的第一试验孔4和第二试验孔5处处并向内紧固,必要时可在铜制的绝缘装置配件6上涂抹导电膏,此时铜制的绝缘装置配件6外侧的铜板和变压器10kV侧套管导电杆连通,就可通过铜板进行变压器直流电阻、绕组变形、介质损耗等相关的例行试验项目,如图5所示。When in use, remove the upper wiring board and fasteners of the 10kV side bushing of the transformer, and screw the insulating device of the present invention to the conductive rod of the bushing. Wipe the porcelain skirt of the casing clean to ensure that the bottom of the insulating device and the porcelain skirt are reliably fitted. When the transformer is running, put the PVC
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明披露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.
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