CN103558437A - Smart bushing for electronic mutual inductor - Google Patents
Smart bushing for electronic mutual inductor Download PDFInfo
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- CN103558437A CN103558437A CN201310509082.8A CN201310509082A CN103558437A CN 103558437 A CN103558437 A CN 103558437A CN 201310509082 A CN201310509082 A CN 201310509082A CN 103558437 A CN103558437 A CN 103558437A
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- mutual inductor
- sleeve pipe
- bushing
- voltage transformer
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Abstract
The invention provides a smart bushing for an electronic mutual inductor, and is mainly applied to the technical field of electric power supply and transformation. The smart bushing for the electronic mutual inductor comprises an electronic voltage transformer and an electronic current transformer, wherein the electronic voltage transformer and the electronic current transformer are combined to form the smart bushing. The smart bushing for the electronic mutual inductor is specifically and structurally characterized in that the electronic voltage transformer and the electronic current transformer are inlaid in a bushing body, wherein the electronic voltage transformer and the electronic current transformer are arranged in the axial direction; the electronic voltage transformer and the electronic current transformer are combined together by pouring epoxy resin externally to form the epoxy-poured type smart bushing; a conductive rod and a cable or a threaded rod is led out of the middle portion of the bushing body; a secondary line of the electronic voltage transformer and a secondary line of the electronic current transformer are led out of the side face of the bushing body. The smart bushing for the electronic mutual inductor completely eradicates the magnetic saturation problem of the electronic mutual inductor, thereby improving measurement accuracy; the size of the smart bushing is reduced; the smart bushing is convenient to install and beneficial to high-level integration and intelligentization of a distribution transformer during intellectualized reconstruction of a power distribution network.
Description
Technical field:
The present invention relates to the intelligent sleeve pipe using on a kind of transformer, particularly the intelligent sleeve pipe of a kind of electronic mutual inductor being combined by electric mutual inductor, belongs to electric power for power transformation technical field.
Background technology:
At present, the common intelligent sleeve pipe using on transformer, the inner mutual inductor that all adopts electromagnetic type.Electromagnetic transformer comprises electromagnetic potential transformer and electromagnetic current transducer.The shortcoming of electromagnetic transformer is the magnetic saturation occurring when transformer overload and transformer short circuit fault, make measurement data inaccurate, and mutual inductor volume is relatively large, cause the volume of intelligent sleeve pipe larger, take up room, be unfavorable for that distribution upgrades to the intellectualized reconstruction of the substation transformer in intelligent distribution.
Summary of the invention:
The present invention be take and addressed the above problem as object, mainly overcome the not accurate enough and bulky shortcoming of magnetic saturation, measurement data that the intelligent sleeve pipe of existing electromagnetic transformer exists, and the new-style electronic transformer intelligent that a kind of volume is relatively little, measuring accuracy is high and easy for installation molded cannula is provided.
For achieving the above object, the present invention adopts following technical proposals: the intelligent sleeve pipe of electronic mutual inductor, comprise electronic type voltage transformer and electronic current mutual inductor, and by above-mentioned two kinds of mutual inductors, be combined into intelligent sleeve pipe.Concrete structure is: the embedded electronic type voltage transformer of sleeve pipe, an electronic current mutual inductor, described electronic current mutual inductor and electronic type voltage transformer axial array.The outside epoxy resin that adopts is cast in two mutual inductors together, forms epoxy pouring type intelligence sleeve pipe, and the middle conducting rod and cable or screw rod of adopting drawn.The secondary line of two mutual inductors in intelligence sleeve pipe is drawn in the side of sleeve pipe.Electronic type voltage transformer is based on Pockels photoelectric effect, resitstance voltage divider, transmission system and signal processor etc., consists of; Electronic current mutual inductor is to utilize Rogowski loop construction, realizes a kind of passive electrical minor current transformer of current detecting.
Using method: this epoxy pouring type intelligence sleeve pipe is consistent with the fixed form of ordinary casing, on the case lid of transformer, open the circular hole with ordinary casing formed objects, intelligent sleeve pipe is placed on behind corresponding position, add sealing gasket sealing, then by the pressure cap on spot welding screw rod, intelligent sleeve pipe is fixed on case lid.
Beneficial effect of the present invention:
Adopt the intelligent sleeve pipe of electronic mutual inductor combination, the magnetic saturation problem of having stopped electromagnetic transformer, has improved measuring accuracy, has dwindled the volume of intelligent sleeve pipe, easy for installation, and be conducive to substation transformer Highgrade integration, intellectuality in the intellectualized reconstruction of power distribution network.
Accompanying drawing explanation:
Fig. 1 is the structural representation (screw-rod structure) of the embodiment of the present invention one.
Fig. 2 is the structural representation (conducting rod structure) of the embodiment of the present invention two.
Embodiment:
Embodiment mono-
Referring to Fig. 1, the intelligent sleeve pipe of electronic mutual inductor, comprises electronic type voltage transformer and electronic current mutual inductor, by above-mentioned two kinds of mutual inductors, is combined into intelligent sleeve pipe.Concrete structure is: 2, one electronic type voltage transformers 3 of the embedded electronic current mutual inductor of sleeve pipe 1.Described electronic current mutual inductor 2 and electronic type voltage transformer 3 axial array, electronic current mutual inductor 2 is placed on top, and electronic type voltage transformer 3 is placed on below.Above-mentioned sleeve pipe 1 adopts epoxy resin that two mutual inductors are cast in together, forms epoxy pouring type intelligence sleeve pipe.In the middle of sleeve pipe, be provided with screw rod 9, screw rod 9 is through the center of electronic current mutual inductor 2.The secondary outlet terminal 4 of above-mentioned electronic current mutual inductor 2 and the secondary outlet terminal 5 of electronic type voltage transformer 3 are drawn by the side of sleeve pipe 1; Electronic type voltage transformer 3 is distributed in the both sides of screw rod 9, and the head end of electronic type voltage transformer 3 is connected with screw rod 9.Electronic current mutual inductor secondary outlet terminal 4 and electronic type voltage transformer secondary outlet terminal 5 are drawn rear access intelligent monitoring terminal 10, for monitoring current and voltage signal.Above-mentioned sleeve pipe 1 is fixed on case lid 8 by spot welding screw rod 6, seals therebetween by sealing gasket 7.
Above-mentioned electronic current mutual inductor 2 consists of Luo-coil (Rogowski coil).
Above-mentioned electronic type voltage transformer 3 consists of resitstance voltage divider etc.
Embodiment bis-
Referring to Fig. 2, the intelligent sleeve pipe of electronic mutual inductor, comprises electronic type voltage transformer and electronic current mutual inductor, by above-mentioned two kinds of mutual inductors, is combined into intelligent sleeve pipe.Concrete structure is: 2, one electronic type voltage transformers 3 of the embedded electronic current mutual inductor of sleeve pipe 1.Described electronic current mutual inductor 2 and electronic type voltage transformer 3 axial array, electronic current mutual inductor 2 is placed on top, and electronic type voltage transformer 3 is placed on below.Above-mentioned sleeve pipe 1 adopts epoxy resin that two mutual inductors are cast in together, forms epoxy pouring type intelligence sleeve pipe.In the middle of sleeve pipe, be provided with conducting rod 11 and cable 12.Above-mentioned conducting rod 11 and cable 12 are through the center of electronic current mutual inductor 2, and the secondary outlet terminal 4 of above-mentioned electronic current mutual inductor 2 and the secondary outlet terminal 5 of electronic type voltage transformer 3 are drawn by the side of sleeve pipe 1.Electronic type voltage transformer 3 is distributed in the both sides of conducting rod 11 and cable 12, and the head end of electronic type voltage transformer 3 is connected with conducting rod 11.Electronic current mutual inductor secondary outlet terminal 4 and electronic type voltage transformer secondary outlet terminal 5 are drawn rear access intelligent monitoring terminal 10, for monitoring current and voltage signal.Above-mentioned sleeve pipe 1 is fixed on case lid 8 by spot welding screw rod 6, seals therebetween by sealing gasket 7.
Above-mentioned electronic current mutual inductor 2 consists of Luo-coil (Rogowski coil).
Above-mentioned electronic type voltage transformer 3 consists of resitstance voltage divider etc.
Claims (5)
1. the intelligent sleeve pipe of electronic mutual inductor, is characterized in that: it comprises electronic type voltage transformer and electronic current mutual inductor, by above-mentioned two kinds of mutual inductors, is combined into intelligent sleeve pipe.
2. the intelligent sleeve pipe of electronic mutual inductor as claimed in claim 1, it is characterized in that: the embedded electronic type voltage transformer of described sleeve pipe, an electronic current mutual inductor, electronic current mutual inductor and electronic type voltage transformer axial array, wherein electronic current mutual inductor is placed on top, electronic type voltage transformer is placed on below, the outside epoxy resin that adopts is cast in two mutual inductors together, form epoxy pouring type intelligence sleeve pipe, in the middle of sleeve pipe, adopt screw rod or conducting rod and cable to draw, the secondary line of two mutual inductors in intelligence sleeve pipe is drawn in the side of sleeve pipe.
3. the intelligent sleeve pipe of electronic mutual inductor as claimed in claim 2, it is characterized in that: described conducting rod and cable are through the center of electronic current mutual inductor, electronic type voltage transformer is distributed in the both sides of conducting rod and cable, and the head end of above-mentioned electronic type voltage transformer is connected with conducting rod.
4. the intelligent sleeve pipe of electronic mutual inductor as claimed in claim 2, it is characterized in that: described screw rod is through the center of electronic current mutual inductor, electronic type voltage transformer is distributed in the both sides of screw rod, and the head end of above-mentioned electronic type voltage transformer is connected with screw rod.
5. the intelligent sleeve pipe of electronic mutual inductor as claimed in claim 1, is characterized in that: above-mentioned sleeve pipe is fixed on case lid by spot welding screw rod, seals therebetween by sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509082.8A CN103558437A (en) | 2013-10-22 | 2013-10-22 | Smart bushing for electronic mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509082.8A CN103558437A (en) | 2013-10-22 | 2013-10-22 | Smart bushing for electronic mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103558437A true CN103558437A (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310509082.8A Pending CN103558437A (en) | 2013-10-22 | 2013-10-22 | Smart bushing for electronic mutual inductor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103558437A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887052A (en) * | 2014-03-14 | 2014-06-25 | 南京南瑞集团公司 | Bushing current transformers |
| CN108335891A (en) * | 2017-12-20 | 2018-07-27 | 安徽华能集团电器有限公司 | A kind of heat dissipation type voltage transformer |
| CN108896807A (en) * | 2018-06-01 | 2018-11-27 | 清华大学深圳研究生院 | Bushing |
| CN110412328A (en) * | 2019-09-03 | 2019-11-05 | 山东富澳电力设备有限公司 | A kind of combination electronic mutual inductor and measuring system for distribution transformer |
| CN113224668A (en) * | 2021-02-26 | 2021-08-06 | 平高集团有限公司 | Box-sharing column switch and wire inlet and outlet sleeve thereof |
| CN114034903A (en) * | 2021-10-19 | 2022-02-11 | 上海置信智能电气有限公司 | Voltage and current acquisition integrated low-voltage sleeve |
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| US4775849A (en) * | 1987-12-24 | 1988-10-04 | Guthrie Canadian Investments Limited | Gas insulated current transformer |
| CN1084667A (en) * | 1992-09-23 | 1994-03-30 | 杜娟 | Built-in casing current transformer |
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| CN102903490A (en) * | 2012-09-21 | 2013-01-30 | 沈阳全密封变压器股份有限公司 | Intelligent bushing |
| CN202816636U (en) * | 2012-09-11 | 2013-03-20 | 张伟 | Novel casing pipe mutual inductor |
| CN203149015U (en) * | 2013-03-08 | 2013-08-21 | 扬州市庆源电气成套设备有限公司 | Current and voltage detection type insulation sleeve of ring net switch device |
| CN203587661U (en) * | 2013-10-22 | 2014-05-07 | 沈阳全密封变压器股份有限公司 | Intelligent bushing of electronic transformer |
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2013
- 2013-10-22 CN CN201310509082.8A patent/CN103558437A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4775849A (en) * | 1987-12-24 | 1988-10-04 | Guthrie Canadian Investments Limited | Gas insulated current transformer |
| CN1084667A (en) * | 1992-09-23 | 1994-03-30 | 杜娟 | Built-in casing current transformer |
| CN102403113A (en) * | 2010-09-17 | 2012-04-04 | 大连北方互感器集团有限公司 | Medium-voltage sleeve of capacitive voltage transformer |
| CN202102874U (en) * | 2011-03-14 | 2012-01-04 | 王伟坤 | Bushing type current transformer used for high voltage transformer and high voltage combined electric appliance |
| CN102496443A (en) * | 2011-12-12 | 2012-06-13 | 辽宁省电力有限公司锦州供电公司 | Sleeve of distribution transformer |
| CN202816636U (en) * | 2012-09-11 | 2013-03-20 | 张伟 | Novel casing pipe mutual inductor |
| CN102903490A (en) * | 2012-09-21 | 2013-01-30 | 沈阳全密封变压器股份有限公司 | Intelligent bushing |
| CN203149015U (en) * | 2013-03-08 | 2013-08-21 | 扬州市庆源电气成套设备有限公司 | Current and voltage detection type insulation sleeve of ring net switch device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887052A (en) * | 2014-03-14 | 2014-06-25 | 南京南瑞集团公司 | Bushing current transformers |
| CN108335891A (en) * | 2017-12-20 | 2018-07-27 | 安徽华能集团电器有限公司 | A kind of heat dissipation type voltage transformer |
| CN108335891B (en) * | 2017-12-20 | 2020-05-08 | 安徽华能集团电器有限公司 | Heat dissipation formula voltage transformer |
| CN108896807A (en) * | 2018-06-01 | 2018-11-27 | 清华大学深圳研究生院 | Bushing |
| CN110412328A (en) * | 2019-09-03 | 2019-11-05 | 山东富澳电力设备有限公司 | A kind of combination electronic mutual inductor and measuring system for distribution transformer |
| CN113224668A (en) * | 2021-02-26 | 2021-08-06 | 平高集团有限公司 | Box-sharing column switch and wire inlet and outlet sleeve thereof |
| CN114034903A (en) * | 2021-10-19 | 2022-02-11 | 上海置信智能电气有限公司 | Voltage and current acquisition integrated low-voltage sleeve |
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Application publication date: 20140205 |