CN210866095U - A special shunt device for replacing drop fuse with load - Google Patents
A special shunt device for replacing drop fuse with load Download PDFInfo
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- CN210866095U CN210866095U CN201922365838.1U CN201922365838U CN210866095U CN 210866095 U CN210866095 U CN 210866095U CN 201922365838 U CN201922365838 U CN 201922365838U CN 210866095 U CN210866095 U CN 210866095U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000012212 insulator Substances 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
本实用新型提供了一种带负荷更换跌落式熔断器专用分流装置，包括：绝缘固定部分、绝缘支撑部分、绝缘外套管、绝缘分流线和引流线夹；所述绝缘固定部分设有角钢，角钢的一边通过螺栓固定在变压器台架横担或三相跌落式熔断其横担上，角钢的另一边通过螺栓固定在绝缘固定杆上；所述支撑部分位于绝缘固定杆下方，设有多个10千伏硅橡胶绝缘子；所述绝缘外套管与绝缘固定杆之间设有杆铰链，绝缘分流线穿过绝缘外套管，在绝缘分流线的两端设有引流线夹，两端引流线夹分别与跌落熔断器上、下端头的引流线相连接。本实用新型可以有效提高供电可靠性和优质服务水平，避免了低压用户停电，杜绝了不必要电量损失。
The utility model provides a special shunt device for replacing a drop-type fuse under load, which comprises: an insulating fixing part, an insulating supporting part, an insulating outer sleeve, an insulating shunt wire and a drainage wire clip; the insulating fixing part is provided with an angle steel, One side of the angle steel is fixed on the cross arm of the transformer bench or the three-phase drop-type fuse by bolts, and the other side of the angle steel is fixed on the insulating fixing rod by bolts; the supporting part is located under the insulating fixing rod, and there are multiple 10 kV silicone rubber insulator; a rod hinge is provided between the insulating outer sleeve and the insulating fixing rod, the insulating shunt line passes through the insulating outer sleeve, and there are drainage clips at both ends of the insulating shunt line to drain current at both ends. The wire clips are respectively connected with the drain wires of the upper and lower ends of the drop fuse. The utility model can effectively improve power supply reliability and high-quality service level, avoid power outages for low-voltage users, and eliminate unnecessary power loss.
Description
技术领域technical field
本实用新型涉及电力领域，尤其涉及一种带负荷更换跌落式熔断器专用分流装置。The utility model relates to the field of electric power, in particular to a special shunt device for replacing a drop-type fuse with a load.
背景技术Background technique
跌落式熔断器在10kV配电变压器、分支线路中作为投、切操作开关和短路、过载保护使用。随着社会经济发展，用电量增加，出现了老化、损坏现象而亟待更换，跌落式熔断器专用分流装置成为决定能否开展带负荷更换跌落式熔断器的关键设备，相对停电、带电更换跌落式熔断器而言，在更换该设备时，所需做的安全措施、带电作业人员技能水平、现场实际作业环境、作业“三措一案”、作业所需的验电器、工器具等需求复杂多样，有一定的作业安全风险，一定程度上限制了作业的开展。Drop-out fuses are used in 10kV distribution transformers and branch lines as switching switches for switching operations and short-circuit and overload protection. With the development of society and economy, the power consumption increases, and the phenomenon of aging and damage occurs and needs to be replaced urgently. The special shunt device for drop fuses has become the key equipment to determine whether the drop fuse can be replaced under load. For the type fuse, when replacing the equipment, the safety measures required, the skill level of the live operators, the actual working environment on the site, the "three measures and one case" for the operation, the electroscope and tools required for the operation are complex. There are certain operation safety risks, which limit the development of operations to a certain extent.
带电更换跌落式熔断器的方法可有效提高供电可靠性和优质服务水平，特别是在变压器低压侧带负荷方式下采取带电更换跌落式熔断器作业直接避免了低压用户停电，杜绝了不必要电量损失，做到了配网检修与电力持续供应兼顾，公司经济效益与社会效益并存，因此一种带负荷更换跌落式熔断器专用分流装置就显得尤为重要。The method of live replacement of the drop fuse can effectively improve the reliability of power supply and high-quality service level, especially when the low voltage side of the transformer is under load, the live replacement of the drop fuse can directly avoid power outages for low-voltage users and eliminate unnecessary power loss. , to achieve both the maintenance of the distribution network and the continuous supply of electricity, the company's economic and social benefits coexist, so a special shunt device for replacing the drop-type fuse with load is particularly important.
实用新型内容Utility model content
为了解决上述问题，本实用新型提供了一种带负荷更换跌落式熔断器专用分流装置，可有效解决停电作业时间长、带电作业工作由易发事故等问题。In order to solve the above problems, the utility model provides a special shunt device for replacing the drop-type fuse with load, which can effectively solve the problems of long power outage operation and easy accident-prone work during live operation.
本实用新型提供的技术方案是：一种带负荷更换跌落式熔断器专用分流装置，包括：绝缘固定部分、绝缘支撑部分、绝缘外套管、绝缘分流线和引流线夹；The technical scheme provided by the utility model is: a special shunt device for replacing the drop-type fuse with load, comprising: an insulating fixing part, an insulating supporting part, an insulating outer sleeve, an insulating shunt wire and a drain wire clip;
所述绝缘固定部分设有角钢，角钢的一边通过螺栓固定在变压器台架横担或三相跌落式熔断其横担上，角钢的另一边通过螺栓固定在绝缘固定杆上；The insulating fixing part is provided with an angle steel, one side of the angle steel is fixed on the cross-arm of the transformer bench or the three-phase drop-type fuse by bolts, and the other side of the angle steel is fixed on the insulating fixing rod by bolts;
所述支撑部分位于绝缘固定杆下方，设有多个10千伏硅橡胶绝缘子；The supporting part is located under the insulating fixing rod, and is provided with a plurality of 10 kV silicone rubber insulators;
所述绝缘外套管与绝缘固定杆之间设有杆铰链，绝缘分流线穿过绝缘外套管，在绝缘分流线的两端设有引流线夹，两端引流线夹分别与跌落熔断器上、下端头的引流线相连接。A rod hinge is arranged between the insulating outer sleeve and the insulating fixing rod, the insulating shunt line passes through the insulating outer sleeve, and the two ends of the insulating shunt line are provided with drainage wire clips, and the drainage wire clips at both ends are respectively connected with the drop fuse. The drain lines of the upper and lower ends are connected.
优选，所述所述绝缘外套管为环氧树脂，绝缘分流线采用交联聚乙烯，截面面积为59mm2。Preferably, the insulating outer sleeve is made of epoxy resin, the insulating shunt line is made of cross-linked polyethylene, and the cross-sectional area is 59 mm 2 .
进一步优选，所述绝缘外套管长度为70cm，绝缘分流线长度为110cm。Further preferably, the length of the insulating outer sleeve is 70 cm, and the length of the insulating shunt line is 110 cm.
进一步优选，所述绝缘分流线内涂有电力复合脂。Further preferably, the insulating shunt wire is coated with electrical compound grease.
本实用新型提供了一种带负荷更换跌落式熔断器专用分流装置，相比以往带电更换线路跌落式熔断器时，当柱上配电变压器低压侧不能停电时，可采用专用的绝缘引流线旁路短接跌落式熔断器及两端引线，在带负荷的状况下更换跌落式熔断器，引流线与线夹的载流量匹配线路负荷；绝缘外套管对绝缘引流线起到绝缘保护作用，两端线夹采用专用线夹，绝缘支撑保证引流线与相邻带电体、横担等接地体的有效安全距离，可以在在变压器低压侧带负荷方式下采取带电更换跌落式熔断器作业直接避免了低压用户停电，杜绝了不必要电量损失，做到了配网检修与电力持续供应兼顾。The utility model provides a special shunt device for replacing the drop-type fuse with load. Compared with the previous case of replacing the line-drop-type fuse with electricity, when the low-voltage side of the distribution transformer on the column cannot be powered off, a special insulation drain line can be used. Short-circuit the drop-out fuse and the leads at both ends, and replace the drop-out fuse under load. The current-carrying capacity of the drain wire and the clip matches the line load; the insulating outer sleeve acts as an insulating protection for the insulating drain wire. The end wire clip adopts special wire clip, and the insulating support ensures the effective safety distance between the drain wire and the adjacent live body, cross arm and other grounding bodies. It can be used to replace the drop fuse under the load mode on the low voltage side of the transformer, which directly avoids low voltage. User power outages prevent unnecessary power loss, and achieve both distribution network maintenance and continuous power supply.
附图说明Description of drawings
图1为本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;
图2为本实用新型的工作原理示意图；Fig. 2 is the working principle schematic diagram of the present utility model;
图中：1固定部分、101角钢、102绝缘固定杆、2支撑部分、3绝缘外套管、4绝缘分流线、5引流线夹。In the picture: 1 fixed part, 101 angle steel, 102 insulating fixing rod, 2 supporting part, 3 insulating outer casing, 4 insulating shunt wire, 5 drain wire clip.
具体实施方式Detailed ways
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.
如图1所示，本实用新型提供了一种带负荷更换跌落式熔断器专用分流装置，包括：绝缘固定部分1、绝缘支撑部分2、绝缘外套管3、绝缘分流线4和引流线夹5；As shown in Figure 1, the utility model provides a special shunt device for replacing the drop-type fuse with load, including: an
所述绝缘固定部分1设有角钢101，角钢101的一边通过螺栓固定在变压器台架横担或三相跌落式熔断其横担上，角钢101的另一边通过螺栓固定在绝缘固定杆102上；The insulating
所述支撑部分2位于绝缘固定杆102下方，设有多个10千伏硅橡胶绝缘子201；The
所述绝缘外套管3与绝缘固定杆102之间设有杆铰链301，绝缘分流线4 穿过绝缘外套管3，在绝缘分流线4的两端设有引流线夹5，两端引流线夹5 分别与跌落熔断器上、下端头的引流线相连接。A rod hinge 301 is arranged between the insulating
作为技术方案的改进，所述绝缘分流线4采用交联聚乙烯，截面面积为59mm2。As an improvement of the technical solution, the insulating
作为技术方案的改进，考虑到跌落熔断器安装长为40cm，距离横担两边分别约为20cm，按作业时脱开的带电引流线对横担应保持40cm的安全距离，考虑安装过程旁路引流线弯曲程度取量为10cm，因此绝缘外管套3长度为70cm，绝缘分流线4长度为110cm。As an improvement of the technical solution, considering that the installation length of the drop fuse is 40cm, and the distance between the two sides of the cross arm is about 20cm, the safety distance of 40cm from the cross arm should be maintained by the live drainage wire that is disconnected during operation, and the bypass drainage during the installation process should be considered. The bending degree of the line is taken as 10cm, so the length of the insulating
作为技术方案的改进，所述绝缘分流线槽内涂有电力复合脂。As an improvement of the technical solution, the insulating shunt wire groove is coated with power compound grease.
如图2所示，使用绝缘分流线作业时，I总＝I1+I2，其中I1为主线路电流，I2为分流线路电流，当采取带负荷更换跌落式熔断器作业时，通过使用该装置，首先将该装置通过绝缘支撑夹具固定在变压器台架横担或者三相跌落式熔断器横担上，予以紧固，待确认安装牢固后，通过引流线的两端引流线夹分别与跌落熔断器上、下端头的引流线相连接，形成一条临时旁路作业系统，实现了所带负荷的临时转移，解决了不必要的停电，待旧跌落式熔断器更换完毕后，新跌落式熔断器投运，即可拆除临时旁路，进而实现不停负荷更换跌落式熔断器。As shown in Figure 2, when working with insulated shunt lines, I = I 1 +I 2 , where I 1 is the main line current, and I 2 is the shunt line current. By using this device, firstly fix the device on the cross arm of the transformer stand or the cross arm of the three-phase drop-out fuse through an insulating support fixture, and then tighten it. It is connected with the drain lines of the upper and lower ends of the drop fuse respectively to form a temporary bypass operation system, which realizes the temporary transfer of the load and solves unnecessary power outages. After the old drop fuse is replaced, the new When the drop fuse is put into operation, the temporary bypass can be removed, so that the drop fuse can be replaced without stopping.
本领域技术人员在考虑说明书及实践这里公开的实用新型后，将容易想到本实用新型的其它实施方案。本申请旨在涵盖本实用新型的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本实用新型的一般性原理并包括本实用新型未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本实用新型的真正范围和精神由权利要求指出。Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modifications, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or common knowledge in the technical field not disclosed by the present invention. conventional technical means. The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the invention being indicated by the claims.
应当理解的是，本实用新型并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本实用新型的范围仅由所附的权利要求来限制。It should be understood that the present invention is not limited to the precise structures described above and shown in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
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| CN201922365838.1U CN210866095U (en) | 2019-12-25 | 2019-12-25 | A special shunt device for replacing drop fuse with load |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884123A (en) * | 2020-07-09 | 2020-11-03 | 国网天津市电力公司 | An on-load replacement protection device for a drop-type fuse and a live replacement method thereof |
| CN113488915A (en) * | 2021-08-12 | 2021-10-08 | 国网上海市电力公司 | Pole top transition lead temporary support for live replacement of 10kV pole-mounted contact breaker |
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2019
- 2019-12-25 CN CN201922365838.1U patent/CN210866095U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884123A (en) * | 2020-07-09 | 2020-11-03 | 国网天津市电力公司 | An on-load replacement protection device for a drop-type fuse and a live replacement method thereof |
| CN111884123B (en) * | 2020-07-09 | 2021-09-21 | 国网天津市电力公司 | Load replacement protection device for drop-out fuse and live replacement method thereof |
| CN113488915A (en) * | 2021-08-12 | 2021-10-08 | 国网上海市电力公司 | Pole top transition lead temporary support for live replacement of 10kV pole-mounted contact breaker |
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