WO2022095085A1 - Transformer with economical gas-insulated wire-out structure - Google Patents

Transformer with economical gas-insulated wire-out structure Download PDF

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WO2022095085A1
WO2022095085A1 PCT/CN2020/127929 CN2020127929W WO2022095085A1 WO 2022095085 A1 WO2022095085 A1 WO 2022095085A1 CN 2020127929 W CN2020127929 W CN 2020127929W WO 2022095085 A1 WO2022095085 A1 WO 2022095085A1
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voltage
medium
gas
transformer
cable
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PCT/CN2020/127929
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French (fr)
Chinese (zh)
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高辉
郭勤标
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吴江变压器有限公司
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/321—Insulating of coils, windings, or parts thereof using a fluid for insulating purposes only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures

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  • the invention relates to a transformer, in particular to a transformer with an economical gas-insulated outlet structure.
  • the technical requirements of urban substations are much higher than those of open-air suburban substations. They not only have higher requirements on technical parameters such as transformer loss, impedance, and temperature rise, but also have strict requirements on electromagnetic characteristics, noise, and prevention of dangerous goods, especially for the power station area and landscape. Impact has prominent limitations.
  • the traditional construction method of overhead power station has been unable to meet the requirements of power grid construction.
  • the line is introduced into underground or pre-installed pipelines, and the elimination of overhead lines has become the first method for urban power supply stations.
  • the core of solving the problem is to solve the outlet structure of the power transformer.
  • transformers introduce electrical energy into underground cable channels through oil-oil bushings, oil-filled cable compartments, cable plugs and cross-linked cables, and transmit power to users.
  • the oil-oil outlet cable silo in this method has the risk of oil leakage and pollution to the environment, and the operation and maintenance workload is large, so it is difficult to realize an unmanned power station.
  • the other one draws the electrical energy out through the oil-gas casing, the gas-filled cable compartment, the gas-filled outlet bushing and the power cable. Occupying a large area, the power station construction investment is relatively high, and the final outlet still needs to be overhead.
  • the technical problem solved by the invention is to provide a transformer with an economical gas-insulated outgoing structure, which solves the problems of environmental pollution, large land occupation and high investment of conventional structures.
  • an economical gas-insulated outgoing wire structure transformer comprising a transformer, a high-voltage outgoing wire outgoing mechanism and a medium-voltage outgoing wire outgoing mechanism; the transformer is located in the high-voltage underground cable and the medium-voltage underground cable.
  • the high-voltage outlet lead-out mechanism and the medium-voltage outlet lead-out mechanism are respectively arranged on both sides of the transformer; one end of the high-voltage outlet lead-out mechanism is connected to the high-voltage lead of the transformer through a high-voltage oil-gas bushing, and the other end is inserted and pulled out through a high-voltage
  • the wire head is connected with the high-voltage underground cable; one end of the medium-voltage outgoing line lead-out mechanism is connected with the medium-voltage lead wire of the transformer through the medium-pressure oil-gas bushing, and the other end is connected with the medium-voltage underground cable through the medium-voltage plug-in and pull-out wire head.
  • the high-voltage outgoing wire lead-out mechanism includes a high-pressure gas cable and a high-voltage inflatable cable compartment; the high-pressure gas cable is arranged in the high-voltage inflatable cable compartment; both ends of the high-pressure gas cable are respectively provided with high-voltage pull-out cables.
  • the medium-pressure outgoing wire lead-out mechanism includes a medium-pressure in-air cable and a medium-pressure inflatable cable compartment; the medium-pressure in-air cable is arranged in the medium-pressure inflatable cable compartment; The medium-pressure oil-gas bushing is connected with the medium-voltage lead wire of the transformer; the medium-pressure gas-filled cable compartment is filled with insulating gas.
  • the insulating gas is sulfur hexafluoride.
  • the beneficial effects of the invention are as follows: the scheme adopts SF6 insulating gas instead of transformer oil to ensure the insulation of outgoing cables, improves the disadvantages of traditional oil-oil outgoing and oil-gas outgoing transformers, and solves the problem of leakage of oil-filled cable bins and pollutes the environment;
  • the inflatable silo is connected to the underground cable by plugging and unplugging the wire, which solves the problem of land occupation and investment of the power station.
  • the scheme is simple in structure, does not require special research and development technology, is economical, improves the feasibility of urban substation construction, reduces power station construction costs, and improves the level of transformer manufacturing technology.
  • Figure 1 is a schematic diagram of the transformer outlet mechanism.
  • High-voltage underground cable 2. High-voltage cable compartment bracket; 3. High-voltage plug-in and pull-out wire head; 4. High-voltage gas-filled cable compartment; 5. High-voltage gas cable; , medium pressure oil-gas casing; 8, medium pressure gas-to-air cable; 9, medium pressure inflatable cable compartment; 10, medium pressure plug-in and pull-out wire head; 11, medium pressure cable compartment bracket; 12, medium pressure underground cable.
  • an economical gas-insulated outgoing structure transformer includes a transformer, a high-voltage outgoing wire lead-out mechanism and a medium-voltage outgoing wire lead-out mechanism; the transformer is located between the high-voltage underground cable 1 and the medium-voltage underground cable 12; the The high-voltage outlet lead-out mechanism and the medium-voltage outlet lead-out mechanism are respectively arranged on both sides of the transformer; one end of the high-voltage outlet lead-out mechanism is connected to the high-voltage lead of the transformer through the high-voltage oil-gas bushing 6, and the other end is connected to the high-voltage lead through the high-voltage plug-in and pull-out wire head 3.
  • the underground cable 1 is connected; one end of the medium-voltage outlet lead-out mechanism is connected to the medium-voltage lead of the transformer through the medium-pressure oil-gas bushing 7 , and the other end is connected to the medium-voltage underground cable 12 through the medium-voltage plug-in and pull-out head 10 .
  • the high-voltage outgoing wire lead-out mechanism includes a high-pressure gas cable 5 and a high-voltage inflatable cable compartment 4; the high-pressure gas cable 5 is arranged in the high-pressure gas-filled cable compartment 4; the two ends of the high-pressure gas cable 5 are respectively arranged There is a high-voltage plug-in wire head 3 and a high-voltage oil-gas bushing 6; the high-voltage oil-gas bushing 6 is connected with the high-voltage lead wire of the transformer; the high-voltage inflatable cable compartment 4 is filled with insulating gas, and hexafluoro is selected in this example. Sulfur as insulating gas.
  • the medium-pressure outgoing wire lead-out mechanism includes a medium-pressure in-air cable 8 and a medium-pressure inflatable cable compartment 9; the medium-pressure in-air cable 8 is arranged in the medium-pressure inflatable cable compartment 9; the medium-pressure in-air cable 8 Both ends are respectively provided with a medium-voltage plug-in and pull-out wire head 10 and a medium-pressure oil-gas bushing 7; the medium-pressure oil-gas bushing 7 is connected with the medium-voltage lead wire of the transformer; the medium-voltage inflatable cable compartment 9 is filled with insulation
  • sulfur hexafluoride is selected as the insulating gas.
  • the conventional oil-oil outlet cable silo has the risk of oil leakage and pollution to the environment.
  • the source of the danger is the transformer oil that plays an insulating role, and the first choice for the insulating medium to replace the transformer oil is SF6 gas.
  • the transformer can pass the oil-gas
  • the casing, the inflatable cable silo, the cable plug and the cross-linked underground cable introduce the electric energy into the underground cable channel and transmit the electric power to the users, which solves the problems of environmental pollution, large land occupation and high investment in conventional structures.

Abstract

A transformer that has an economical gas-insulated wire-out structure, comprising a transformer, a high-voltage wire-out lead-out mechanism and a medium-voltage wire-out lead-out mechanism. The transformer is located between a high-voltage underground cable (1) and a medium-voltage underground cable (12). The high-voltage wire-out lead-out mechanism and the medium-voltage wire-out lead-out mechanism are arranged at two sides of the transformer respectively. One end of the high-voltage wire-out lead-out mechanism is connected to a high-voltage lead of the transformer by means of a high-voltage oil-gas bushing (6), and the other end is connected to the high-voltage underground cable (1) by means of a high-voltage plug-in wire-out head (3). One end of the medium-voltage wire-out lead-out mechanism is connected to a medium-voltage lead of the transformer by means of a medium-pressure oil-gas bushing (7), and the other end is connected to the medium-voltage underground cable (12) by means of a medium-voltage plug-in wire-out head (10). The problems of environmental pollution, large land occupation and high investment in conventional structures are solved.

Description

经济型气体绝缘出线结构的变压器Transformer with Economical Gas Insulated Outlet Structure 技术领域technical field
本发明涉及一种变压器，特别涉及一种经济型气体绝缘出线结构的变压器。The invention relates to a transformer, in particular to a transformer with an economical gas-insulated outlet structure.
背景技术Background technique
随着我们经济飞速发展，电网负荷日益向发达地区、城市中心聚集，对电网安全稳定运行提出更高的要求，因此越来越多的城市变电站，甚至地下变电站不断涌现出来。With the rapid development of our economy, the power grid load is increasingly concentrated in developed areas and urban centers, which puts forward higher requirements for the safe and stable operation of the power grid. Therefore, more and more urban substations and even underground substations are emerging.
城市变电站的技术要求远高于露天郊外变电站，不仅对变压器损耗、阻抗、温升等技术参数要求较高，而且对电磁特性、噪音、危险品防治有严格要求，尤其对电站占地面积、景观影响有着突出的限制。传统的架空出线电站建设方式已经无法满足电网建设的要求，线路引入地下或预装管道，消灭架空线成为城市供电站的首先方式。而破题的核心是解决电力变压器的出线引出结构。The technical requirements of urban substations are much higher than those of open-air suburban substations. They not only have higher requirements on technical parameters such as transformer loss, impedance, and temperature rise, but also have strict requirements on electromagnetic characteristics, noise, and prevention of dangerous goods, especially for the power station area and landscape. Impact has prominent limitations. The traditional construction method of overhead power station has been unable to meet the requirements of power grid construction. The line is introduced into underground or pre-installed pipelines, and the elimination of overhead lines has become the first method for urban power supply stations. The core of solving the problem is to solve the outlet structure of the power transformer.
目前比较主流的城市变电站变压器出线方式有两种，一种是变压器通过油-油套管、充油电缆仓、电缆插拔头和交联电缆，将电能引入地下电缆通道，向用户传输电力。该方法中的油-油出线电缆仓存在漏油污染环境风险，且运行维护工作量大，实现无人电站较困难。另一种通过油-气套管、充气电缆仓、充气出线套管和电力电缆将电能引出。占地大，电站建设投资较高，最终出线还是要进行架空线。At present, there are two mainstream ways of outgoing transformers in urban substations. One is that transformers introduce electrical energy into underground cable channels through oil-oil bushings, oil-filled cable compartments, cable plugs and cross-linked cables, and transmit power to users. The oil-oil outlet cable silo in this method has the risk of oil leakage and pollution to the environment, and the operation and maintenance workload is large, so it is difficult to realize an unmanned power station. The other one draws the electrical energy out through the oil-gas casing, the gas-filled cable compartment, the gas-filled outlet bushing and the power cable. Occupying a large area, the power station construction investment is relatively high, and the final outlet still needs to be overhead.
发明内容SUMMARY OF THE INVENTION
本发明解决的技术问题是提供一种经济型气体绝缘出线结构的变压器，解决常规结构环境污染、占地大、投资高的问题。The technical problem solved by the invention is to provide a transformer with an economical gas-insulated outgoing structure, which solves the problems of environmental pollution, large land occupation and high investment of conventional structures.
本发明解决其技术问题所采用的技术方案是：一种经济型气体绝缘出线结构的变压器，包括变压器、高压出线引出机构和中压出线引出机构；所述变压器位于高压地下电缆和中压地下电缆之间；所述高压出线引出机构和中压出线引出机构分别设置于变压器两侧；所述高压出线引出机构一端通过高压油-气套管与变压器的高压引线连接，另一端通过高压插拔出线头与高压地下电缆连接；所述中压出线引出机构一端通过中压油-气套管与变压器的中压引线连接，另一端通过中压插拔出线头与中压地下电缆连接。The technical scheme adopted by the present invention to solve the technical problem is: an economical gas-insulated outgoing wire structure transformer, comprising a transformer, a high-voltage outgoing wire outgoing mechanism and a medium-voltage outgoing wire outgoing mechanism; the transformer is located in the high-voltage underground cable and the medium-voltage underground cable. The high-voltage outlet lead-out mechanism and the medium-voltage outlet lead-out mechanism are respectively arranged on both sides of the transformer; one end of the high-voltage outlet lead-out mechanism is connected to the high-voltage lead of the transformer through a high-voltage oil-gas bushing, and the other end is inserted and pulled out through a high-voltage The wire head is connected with the high-voltage underground cable; one end of the medium-voltage outgoing line lead-out mechanism is connected with the medium-voltage lead wire of the transformer through the medium-pressure oil-gas bushing, and the other end is connected with the medium-voltage underground cable through the medium-voltage plug-in and pull-out wire head.
进一步的是：所述高压出线引出机构包括高压气中电缆和高压充气电缆仓；所述高压气中电缆设置于高压充气电缆仓内；所述高压气中电缆两端分别设置有高压拔插出线头和高压油-气套管；所述高压油-气套管与变压器的高压引线连接；所述高压充气电缆仓中充满绝缘气体。Further: the high-voltage outgoing wire lead-out mechanism includes a high-pressure gas cable and a high-voltage inflatable cable compartment; the high-pressure gas cable is arranged in the high-voltage inflatable cable compartment; both ends of the high-pressure gas cable are respectively provided with high-voltage pull-out cables. head and high-voltage oil-gas bushing; the high-voltage oil-gas bushing is connected with the high-voltage lead wire of the transformer; the high-voltage gas-filled cable compartment is filled with insulating gas.
进一步的是：所述中压出线引出机构包括中压气中电缆和中压充气电缆仓；所述中压气中电缆设置于中压充气电缆仓中；所述中压气中电缆两端分别设置有中压插拔出线头和中压 油-气套管；述中压油-气套管与变压器的中压引线连接；所述中压充气电缆仓中充满绝缘气体。Further: the medium-pressure outgoing wire lead-out mechanism includes a medium-pressure in-air cable and a medium-pressure inflatable cable compartment; the medium-pressure in-air cable is arranged in the medium-pressure inflatable cable compartment; The medium-pressure oil-gas bushing is connected with the medium-voltage lead wire of the transformer; the medium-pressure gas-filled cable compartment is filled with insulating gas.
进一步的是：所述绝缘气体为六氟化硫。Further: the insulating gas is sulfur hexafluoride.
本发明的有益效果是：本方案采用SF6绝缘气体代替变压器油保证出线电缆绝缘，改善了传统油-油出线和油-气出线变压器的弊端，解决了充油电缆仓渗漏污染环境的问题；此外充气仓利用插拔出线头与地下电缆相连，解决电站占地和投资问题。本方案结构简单，不需要特殊的研发技术，经济性好，提高了城市变电站建设的可行性，可以降低电站建设成本，提高变压器制造技术水平。The beneficial effects of the invention are as follows: the scheme adopts SF6 insulating gas instead of transformer oil to ensure the insulation of outgoing cables, improves the disadvantages of traditional oil-oil outgoing and oil-gas outgoing transformers, and solves the problem of leakage of oil-filled cable bins and pollutes the environment; In addition, the inflatable silo is connected to the underground cable by plugging and unplugging the wire, which solves the problem of land occupation and investment of the power station. The scheme is simple in structure, does not require special research and development technology, is economical, improves the feasibility of urban substation construction, reduces power station construction costs, and improves the level of transformer manufacturing technology.
附图说明Description of drawings
图1为变压器出线机构示意图。Figure 1 is a schematic diagram of the transformer outlet mechanism.
图中标记为：1、高压地下电缆；2、高压电缆仓支架；3、高压插拔出线头；4、高压充气电缆仓；5、高压气中电缆；6、高压油-气套管；7、中压油-气套管；8、中压气中电缆；9、中压充气电缆仓；10、中压插拔出线头；11、中压电缆仓支架；12、中压地下电缆。Marked as: 1. High-voltage underground cable; 2. High-voltage cable compartment bracket; 3. High-voltage plug-in and pull-out wire head; 4. High-voltage gas-filled cable compartment; 5. High-voltage gas cable; , medium pressure oil-gas casing; 8, medium pressure gas-to-air cable; 9, medium pressure inflatable cable compartment; 10, medium pressure plug-in and pull-out wire head; 11, medium pressure cable compartment bracket; 12, medium pressure underground cable.
具体实施方式Detailed ways
为了加深对本发明的理解，下面将结合附图和实施例对本发明做进一步详细描述，该实施例仅用于解释本发明，并不对本发明的保护范围构成限定。In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.
实施例Example
如图1所示，一种经济型气体绝缘出线结构的变压器，包括变压器、高压出线引出机构和中压出线引出机构；所述变压器位于高压地下电缆1和中压地下电缆12之间；所述高压出线引出机构和中压出线引出机构分别设置于变压器两侧；所述高压出线引出机构一端通过高压油-气套管6与变压器的高压引线连接，另一端通过高压插拔出线头3与高压地下电缆1连接；所述中压出线引出机构一端通过中压油-气套管7与变压器的中压引线连接，另一端通过中压插拔出线头10与中压地下电缆12连接。As shown in Figure 1, an economical gas-insulated outgoing structure transformer includes a transformer, a high-voltage outgoing wire lead-out mechanism and a medium-voltage outgoing wire lead-out mechanism; the transformer is located between the high-voltage underground cable 1 and the medium-voltage underground cable 12; the The high-voltage outlet lead-out mechanism and the medium-voltage outlet lead-out mechanism are respectively arranged on both sides of the transformer; one end of the high-voltage outlet lead-out mechanism is connected to the high-voltage lead of the transformer through the high-voltage oil-gas bushing 6, and the other end is connected to the high-voltage lead through the high-voltage plug-in and pull-out wire head 3. The underground cable 1 is connected; one end of the medium-voltage outlet lead-out mechanism is connected to the medium-voltage lead of the transformer through the medium-pressure oil-gas bushing 7 , and the other end is connected to the medium-voltage underground cable 12 through the medium-voltage plug-in and pull-out head 10 .
在上述基础，所述高压出线引出机构包括高压气中电缆5和高压充气电缆仓4；所述高压气中电缆5设置于高压充气电缆仓4内；所述高压气中电缆5两端分别设置有高压拔插出线头3和高压油-气套管6；所述高压油-气套管6与变压器的高压引线连接；所述高压充气电缆仓4中充满绝缘气体，本实例中选用六氟化硫作为绝缘气体。On the above basis, the high-voltage outgoing wire lead-out mechanism includes a high-pressure gas cable 5 and a high-voltage inflatable cable compartment 4; the high-pressure gas cable 5 is arranged in the high-pressure gas-filled cable compartment 4; the two ends of the high-pressure gas cable 5 are respectively arranged There is a high-voltage plug-in wire head 3 and a high-voltage oil-gas bushing 6; the high-voltage oil-gas bushing 6 is connected with the high-voltage lead wire of the transformer; the high-voltage inflatable cable compartment 4 is filled with insulating gas, and hexafluoro is selected in this example. Sulfur as insulating gas.
在上述基础上，所述中压出线引出机构包括中压气中电缆8和中压充气电缆仓9；所述中压气中电缆8设置于中压充气电缆仓9中；所述中压气中电缆8两端分别设置有中压插拔出线头10和中压油-气套管7；述中压油-气套管7与变压器的中压引线连接；所述中压充气电缆仓9中充满绝缘气体，本实例中选用六氟化硫作为绝缘气体。On the basis of the above, the medium-pressure outgoing wire lead-out mechanism includes a medium-pressure in-air cable 8 and a medium-pressure inflatable cable compartment 9; the medium-pressure in-air cable 8 is arranged in the medium-pressure inflatable cable compartment 9; the medium-pressure in-air cable 8 Both ends are respectively provided with a medium-voltage plug-in and pull-out wire head 10 and a medium-pressure oil-gas bushing 7; the medium-pressure oil-gas bushing 7 is connected with the medium-voltage lead wire of the transformer; the medium-voltage inflatable cable compartment 9 is filled with insulation In this example, sulfur hexafluoride is selected as the insulating gas.
常规油-油出线电缆仓存在漏油污染环境风险，危险源头是起绝缘作用的变压器油，而代替变压器油的绝缘介质首选是SF6气体。但是油-气出线由于管道很长最终引入架空线，管道的占地还是很客观，因此利用插拔头连接地下电缆的特性，我们通过优势互补形成了最优解决方案，即变压器通过油-气套管、充气电缆仓、电缆插拔头和交联地下电缆，将电能引入地下电缆通道，向用户传输电力，解决了常规结构环境污染、占地大、投资高的问题。The conventional oil-oil outlet cable silo has the risk of oil leakage and pollution to the environment. The source of the danger is the transformer oil that plays an insulating role, and the first choice for the insulating medium to replace the transformer oil is SF6 gas. However, due to the long pipeline of the oil-gas outlet, the overhead line is eventually introduced, and the pipeline occupies an objective area. Therefore, using the characteristics of connecting the underground cable with the plug-and-pull head, we have formed the optimal solution through complementary advantages, that is, the transformer can pass the oil-gas The casing, the inflatable cable silo, the cable plug and the cross-linked underground cable, introduce the electric energy into the underground cable channel and transmit the electric power to the users, which solves the problems of environmental pollution, large land occupation and high investment in conventional structures.
上述实施例不应以任何方式限制本发明，凡采用等同替换或等效转换的方式获得的技术方案均落在本发明的保护范围内。The above embodiments should not limit the present invention in any way, and all technical solutions obtained by means of equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims (4)

  1. 一种经济型气体绝缘出线结构的变压器，其特征在于：包括变压器、高压出线引出机构和中压出线引出机构；所述变压器位于高压地下电缆(1)和中压地下电缆(12)之间；所述高压出线引出机构和中压出线引出机构分别设置于变压器两侧；所述高压出线引出机构一端通过高压油-气套管(6)与变压器的高压引线连接，另一端通过高压插拔出线头(3)与高压地下电缆(1)连接；所述中压出线引出机构一端通过中压油-气套管(7)与变压器的中压引线连接，另一端通过中压插拔出线头(10)与中压地下电缆(12)连接。An economical gas-insulated outgoing wire structure transformer is characterized in that: it comprises a transformer, a high-voltage outgoing wire outgoing mechanism and a medium-voltage outgoing wire outgoing mechanism; the transformer is located between the high-voltage underground cable (1) and the medium-voltage underground cable (12); The high-voltage outgoing line lead-out mechanism and the medium-voltage outgoing line lead-out mechanism are respectively arranged on both sides of the transformer; one end of the high-voltage outgoing line lead-out mechanism is connected to the high-voltage lead wire of the transformer through the high-voltage oil-gas bushing (6), and the other end is connected to the high-voltage lead wire of the transformer through high-voltage plugging and unplugging. The wire head (3) is connected with the high-voltage underground cable (1); one end of the medium-voltage outgoing line lead-out mechanism is connected with the medium-voltage lead wire of the transformer through the medium-pressure oil-gas bushing (7), and the other end is connected with the medium-voltage lead-out ( 10) Connect with the medium voltage underground cable (12).
  2. 根据权利要求1所述的一种经济型气体绝缘出线结构的变压器，其特征在于：所述高压出线引出机构包括高压气中电缆(5)和高压充气电缆仓(4)；所述高压气中电缆(5)设置于高压充气电缆仓(4)内；所述高压气中电缆(5)两端分别设置有高压插拔出线头(3)和高压油-气套管(6)；所述高压油-气套管(6)与变压器的高压引线连接；所述高压充气电缆仓(4)中充满绝缘气体。The transformer with an economical gas-insulated outlet structure according to claim 1, characterized in that: the high-voltage outlet mechanism comprises a high-pressure gas cable (5) and a high-voltage gas-filled cable bin (4); The cable (5) is arranged in the high-pressure gas-filled cable compartment (4); the two ends of the high-pressure gas-filled cable (5) are respectively provided with a high-voltage plug-in and pull-out wire head (3) and a high-pressure oil-gas sleeve (6); the The high-voltage oil-gas bushing (6) is connected with the high-voltage lead wire of the transformer; the high-voltage gas-filled cable compartment (4) is filled with insulating gas.
  3. 根据权利要求1所述的一种经济型气体绝缘出线结构的变压器，其特征在于：所述中压出线引出机构包括中压气中电缆(8)和中压充气电缆仓(9)；所述中压气中电缆(8)设置于中压充气电缆仓(9)中；所述中压气中电缆(8)两端分别设置有中压插拔出线头(10)和中压油-气套管(7)；述中压油-气套管(7)与变压器的中压引线连接；所述中压充气电缆仓(9)中充满绝缘气体。An economical transformer with gas-insulated outgoing structure according to claim 1, characterized in that: the medium-voltage outgoing line lead-out mechanism comprises a medium-pressure gas-inflated cable (8) and a medium-voltage inflatable cable compartment (9); The medium-pressure gas cable (8) is arranged in the medium-pressure inflatable cable compartment (9); the two ends of the medium-pressure gas-neutral cable (8) are respectively provided with a medium-pressure plug-in and pull-out wire head (10) and a medium-pressure oil-gas sleeve ( 7); the medium-pressure oil-gas bushing (7) is connected with the medium-voltage lead wire of the transformer; the medium-pressure gas-filled cable compartment (9) is filled with insulating gas.
  4. 根据权利要求2或3所述的一种经济型气体绝缘出线结构的变压器，其特征在于：所述绝缘气体为六氟化硫。The transformer with an economical gas-insulated outlet structure according to claim 2 or 3, wherein the insulating gas is sulfur hexafluoride.
PCT/CN2020/127929 2020-11-09 2020-11-11 Transformer with economical gas-insulated wire-out structure WO2022095085A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102832020A (en) * 2012-09-14 2012-12-19 保定天威集团有限公司 Two-in-one leading-out structure of cable box leading-out and common bushing leading-out
CN203617091U (en) * 2013-12-25 2014-05-28 保定天威保变电气股份有限公司 Oil-oil drivepipe mounting structure of high-capacity power transformer
JP2014183189A (en) * 2013-03-19 2014-09-29 Toshiba Corp Partial discharge measuring device, stationary induction apparatus with the same and partial discharge measuring method
CN105044534A (en) * 2015-09-16 2015-11-11 保定天威集团特变电气有限公司 Test method and apparatus for transformers in transition plugging connection with cable terminal outgoing lines through adopting oil-oil casings
CN210925712U (en) * 2019-07-25 2020-07-03 特变电工衡阳变压器有限公司 Lead-out device for transformer and transformer system
CN213093014U (en) * 2020-11-09 2021-04-30 吴江变压器有限公司 Transformer with economical gas insulation outgoing line structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102832020A (en) * 2012-09-14 2012-12-19 保定天威集团有限公司 Two-in-one leading-out structure of cable box leading-out and common bushing leading-out
JP2014183189A (en) * 2013-03-19 2014-09-29 Toshiba Corp Partial discharge measuring device, stationary induction apparatus with the same and partial discharge measuring method
CN203617091U (en) * 2013-12-25 2014-05-28 保定天威保变电气股份有限公司 Oil-oil drivepipe mounting structure of high-capacity power transformer
CN105044534A (en) * 2015-09-16 2015-11-11 保定天威集团特变电气有限公司 Test method and apparatus for transformers in transition plugging connection with cable terminal outgoing lines through adopting oil-oil casings
CN210925712U (en) * 2019-07-25 2020-07-03 特变电工衡阳变压器有限公司 Lead-out device for transformer and transformer system
CN213093014U (en) * 2020-11-09 2021-04-30 吴江变压器有限公司 Transformer with economical gas insulation outgoing line structure

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