CN105375344A - Mounting structure and method for 35kV inlet cable of intelligent substation - Google Patents
Mounting structure and method for 35kV inlet cable of intelligent substation Download PDFInfo
- Publication number
- CN105375344A CN105375344A CN201510899363.8A CN201510899363A CN105375344A CN 105375344 A CN105375344 A CN 105375344A CN 201510899363 A CN201510899363 A CN 201510899363A CN 105375344 A CN105375344 A CN 105375344A
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- CN
- China
- Prior art keywords
- cable
- copper
- isolating switch
- zinc oxide
- main transformer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention relates to a mounting structure and method for a 35kV inlet cable of an intelligent substation. The mounting structure comprises a 35kV power cable pre-buried in a ground cable ditch, wherein one end of the cable penetrates out of the ground cable ditch and is connected with one end of a copper bar through an outdoor cold contraction cable terminal head; the other end of the copper bar is connected to one end of an isolation switch; the other end of the isolation switch is connected with one end of a steel-cored aluminum strand through one device wire clamp; and the other end of the steel-cored aluminum strand is connected to a 35kV power supply point of a main transformer body through another device wire clamp. According to the mounting structure, the potential threat of a conventional mounting mode for a 35kV inlet cable of a main transformer to the safety of the main transformer is eliminated, so that the harm to the main transformer during an accident of the 35kV inlet cable of the main transformer is reduced.
Description
Technical field
The present invention relates to a kind of mounting structure and method thereof of intelligent substation 35kV inlet wire cable.
Background technology
Prior art passes through the attached 35kV long cable section of ingoing line casing of main transformer body arranged outside one, after cable is drawn by cable trough, enter 35kV long cable section of ingoing line casing, realize the connection of cable and main transformer 35kV power supply point at box house, thus complete the installation of main transformer 35kV inlet wire cable.Cable access main transformer 35kV power supply point is positioned at the 35kV long cable section of ingoing line casing outside main transformer body, when cable connection point there is loose contact or to get loose etc. situation time, the amount of heat produced accumulates in box house entail dangers to main transformer safety, even cause the fire in main transformer region, produce serious accident.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing and make improvement, namely technical problem to be solved by this invention is to provide a kind of mounting structure and method thereof of intelligent substation 35kV inlet wire cable, solve existing main transformer 35kV inlet wire cable mounting means to the potential threat of the safety of main transformer, reduce the harm to main transformer when main transformer 35kV inlet wire cable has an accident.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present invention is: a kind of mounting structure of intelligent substation 35kV inlet wire cable, comprise the 35kV power cable be embedded in ground cable ditch, described cable one end is connected with a copper bar by outdoor cold-shrink cable terminal after passing ground cable ditch, the other end of described copper bar is connected to the end of an isolating switch, the other end of described isolating switch is connected with one group of steel reinforced aluminium conductor by a device clamp, and the other end of described steel reinforced aluminium conductor is connected to the 35kV power supply point of main transformer body by another device clamp.
Further, described outdoor cold-shrink cable terminal is connected by a cable copper terminal with between copper bar.
Further, in the middle of the junction of described copper bar and isolating switch, be lined with Copper-Aluminum compound sheet, in the middle of the junction of described power supply point and device clamp, be also lined with Copper-Aluminum compound sheet.
Further, be also provided with post insulator between described main transformer body and isolating switch, the steel reinforced aluminium conductor between main transformer body and isolating switch adopts rectangular bus bar fixed hardware fittings to be fixedly connected on this post insulator.
Further, be provided with 35kV zinc oxide arrester between described post insulator and isolating switch, the steel reinforced aluminium conductor between post insulator and isolating switch is fixedly connected on this 35kV zinc oxide arrester by T-shaped wire clamp.
Further, described post insulator and 35kV zinc oxide arrester are arranged on a support jointly, this support is also provided with the lightning arrester on-line monitoring device equal with 35kV zinc oxide arrester quantity, described 35kV zinc oxide arrester is connected with aluminium row, the end of this aluminium row is connected with insulated copper twisted wire, and described insulated copper twisted wire is electrically connected by a copper lug and lightning arrester on-line monitoring device.
Further, described isolating switch is arranged in a frame, and this frame side wall is fixed with the carbon element bellows be connected with cable trough by anchor ear, described cable passes from carbon element bellows.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present invention is: a kind of installation method of intelligent substation 35kV inlet wire cable, carry out according to the following steps: first pass through the pre-buried 35kV power cable of cable trough at the side of main transformer body, this cable trough place is provided with vertical carbon element bellows, cable one end is connected with a copper bar by outdoor cold-shrink cable terminal after carbon element bellows passes ground cable ditch, the other end of this copper bar is connected to the end of an isolating switch, the other end of this isolating switch is connected with one group of steel reinforced aluminium conductor by a device clamp, this group steel reinforced aluminium conductor is connected with 35kV zinc oxide arrester and post insulator in turn, finally the other end of steel reinforced aluminium conductor is connected to the 35kV power supply point of main transformer body by another device clamp.
Further, described outdoor cold-shrink cable terminal is connected by a cable copper terminal with between copper bar; Be lined with Copper-Aluminum compound sheet in the middle of the junction of described copper bar and isolating switch, in the middle of the junction of described power supply point and device clamp, be also lined with Copper-Aluminum compound sheet; Described steel reinforced aluminium conductor is fixedly connected on 35kV zinc oxide arrester by T-shaped wire clamp; Described steel reinforced aluminium conductor adopts rectangular bus bar fixed hardware fittings to be fixedly connected on post insulator.
Further, be arranged on a support described in described post insulator and 35kV zinc oxide arrester are common, this support is also provided with the lightning arrester on-line monitoring device equal with 35kV zinc oxide arrester quantity, described 35kV zinc oxide arrester is connected with aluminium row, the end of this aluminium row is connected with insulated copper twisted wire, and described insulated copper twisted wire is electrically connected by a copper lug and lightning arrester on-line monitoring device.
Compared with prior art, the present invention has following beneficial effect: this structure is provided with a group of access device in main transformer region separately, improve the overall security of main transformer region high voltage distribution installation and main transformer, reduce when main transformer 35kV inlet wire cable has an accident the issuable harm of main transformer.The application's motion optimizes the mounting means of 35kV inlet wire cable, improve the fail safe of inlet wire, reliability, flexibility, and in inlet wire, add one group of zinc oxide arrester, improve 35kV electric power system and resist superpotential performance, strong ensure that power supply reliability.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the embodiment of the present invention.
In figure: 1-main transformer body, 11-ground cable ditch, 12-power supply point, 2-frame, 21-carbon element bellows, 22-isolating switch, the device clamp on 23-isolating switch, 3-support, 31-lightning arrester on-line monitoring device, 32-insulated copper twisted wire, 33-aluminium is arranged, 4-cable, the outdoor cold-shrink cable terminal of 5-, 6-copper bar, 7-steel reinforced aluminium conductor, 8-35kV zinc oxide arrester, 81-crosses T-shaped wire clamp, 9-post insulator, 91-rectangular bus bar fixed hardware fittings.
Embodiment
Embodiment one: as shown in Figure 1, a kind of mounting structure of intelligent substation 35kV inlet wire cable, comprise the 35kV power cable 4 being embedded in 11 li, ground cable ditch, described cable 4 one end is connected with a copper bar 6 by outdoor cold-shrink cable terminal 5 after passing ground cable ditch 11, the other end of described copper bar 6 is connected to the end of an isolating switch 22, the other end of described isolating switch 22 is connected with one group of steel reinforced aluminium conductor 7 by a device clamp 23, and the other end of described steel reinforced aluminium conductor 7 is connected to the 35kV power supply point 12 of main transformer body 1 by another device clamp.
In the present embodiment, described outdoor cold-shrink cable terminal 5 is connected by a cable copper terminal with between copper bar 6.
In the present embodiment, in the middle of described copper bar 6 and the junction of isolating switch 22, be lined with Copper-Aluminum compound sheet, in the middle of described power supply point 12 and the junction of device clamp, be also lined with Copper-Aluminum compound sheet.
In the present embodiment, be also provided with post insulator 9 between described main transformer body 1 and isolating switch 22, the steel reinforced aluminium conductor 7 between main transformer body 1 and isolating switch 22 adopts rectangular bus bar fixed hardware fittings 91 to be fixedly connected on this post insulator 9.
In the present embodiment, be provided with 35kV zinc oxide arrester 8 between described post insulator 9 and isolating switch 22, the steel reinforced aluminium conductor between post insulator 9 and isolating switch 22 is fixedly connected on this 35kV zinc oxide arrester 8 by T-shaped line 81.
In the present embodiment, described post insulator 9 and 35kV zinc oxide arrester 8 are arranged on a support 3 jointly, this support is also provided with the lightning arrester on-line monitoring device 31 equal with 35kV zinc oxide arrester quantity, described 35kV zinc oxide arrester is connected with aluminium row 33, the end of this aluminium row 33 is connected with insulated copper twisted wire 32, and described insulated copper twisted wire 32 is electrically connected by a copper lug and lightning arrester on-line monitoring device 31.
In the present embodiment, described isolating switch 22 is arranged in a frame 2, and this frame 2 sidewall is fixed with the carbon element bellows 21 be connected with cable trough by anchor ear, described cable 4 passes from carbon element bellows 21.
The installation method of this mounting structure, carry out according to the following steps: first pass through the pre-buried 35kV power cable of cable trough at the side of main transformer body, this cable trough place is provided with vertical carbon element bellows, cable one end is connected with a copper bar by outdoor cold-shrink cable terminal after carbon element bellows passes ground cable ditch, the other end of this copper bar is connected to the end of an isolating switch, the other end of this isolating switch is connected with one group of steel reinforced aluminium conductor by a device clamp, this group steel reinforced aluminium conductor is connected with 35kV zinc oxide arrester and post insulator in turn, finally the other end of steel reinforced aluminium conductor is connected to the 35kV power supply point of main transformer body by another device clamp.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. the mounting structure of an intelligent substation 35kV inlet wire cable, it is characterized in that: comprise the 35kV power cable be embedded in ground cable ditch, described cable one end is connected with a copper bar by outdoor cold-shrink cable terminal after passing ground cable ditch, the other end of described copper bar is connected to the end of an isolating switch, the other end of described isolating switch is connected with one group of steel reinforced aluminium conductor by a device clamp, and the other end of described steel reinforced aluminium conductor is connected to the 35kV power supply point of main transformer body by another device clamp.
2. the mounting structure of intelligent substation 35kV inlet wire cable according to claim 1, is characterized in that: described outdoor cold-shrink cable terminal is connected by a cable copper terminal with between copper bar.
3. the mounting structure of intelligent substation 35kV inlet wire cable according to claim 1, it is characterized in that: in the middle of the junction of described copper bar and isolating switch, be lined with Copper-Aluminum compound sheet, in the middle of the junction of described power supply point and device clamp, be also lined with Copper-Aluminum compound sheet.
4. the mounting structure of intelligent substation 35kV inlet wire cable according to claim 1, it is characterized in that: be also provided with post insulator between described main transformer body and isolating switch, the steel reinforced aluminium conductor between main transformer body and isolating switch adopts rectangular bus bar fixed hardware fittings to be fixedly connected on this post insulator.
5. the mounting structure of intelligent substation 35kV inlet wire cable according to claim 4, it is characterized in that: be provided with 35kV zinc oxide arrester between described post insulator and isolating switch, the steel reinforced aluminium conductor between post insulator and isolating switch is fixedly connected on this 35kV zinc oxide arrester by T-shaped wire clamp.
6. the mounting structure of intelligent substation 35kV inlet wire cable according to claim 5, it is characterized in that: described post insulator and 35kV zinc oxide arrester are arranged on a support jointly, this support is also provided with the lightning arrester on-line monitoring device equal with 35kV zinc oxide arrester quantity, described 35kV zinc oxide arrester is connected with aluminium row, the end of this aluminium row is connected with insulated copper twisted wire, and described insulated copper twisted wire is electrically connected by a copper lug and lightning arrester on-line monitoring device.
7. the mounting structure of intelligent substation 35kV inlet wire cable according to claim 1, it is characterized in that: described isolating switch is arranged in a frame, this frame side wall is fixed with the carbon element bellows be connected with cable trough by anchor ear, described cable passes from carbon element bellows.
8. the installation method of an intelligent substation 35kV inlet wire cable, it is characterized in that, carry out according to the following steps: first pass through the pre-buried 35kV power cable of cable trough at the side of main transformer body, this cable trough place is provided with vertical carbon element bellows, cable one end is connected with a copper bar by outdoor cold-shrink cable terminal after carbon element bellows passes ground cable ditch, the other end of this copper bar is connected to the end of an isolating switch, the other end of this isolating switch is connected with one group of steel reinforced aluminium conductor by a device clamp, this group steel reinforced aluminium conductor is connected with 35kV zinc oxide arrester and post insulator in turn, finally the other end of steel reinforced aluminium conductor is connected to the 35kV power supply point of main transformer body by another device clamp.
9. the installation method of intelligent substation 35kV inlet wire cable according to claim 8, is characterized in that: described outdoor cold-shrink cable terminal is connected by a cable copper terminal with between copper bar; Be lined with Copper-Aluminum compound sheet in the middle of the junction of described copper bar and isolating switch, in the middle of the junction of described power supply point and device clamp, be also lined with Copper-Aluminum compound sheet; Described steel reinforced aluminium conductor is fixedly connected on 35kV zinc oxide arrester by T-shaped wire clamp; Described steel reinforced aluminium conductor adopts rectangular bus bar fixed hardware fittings to be fixedly connected on post insulator.
10. the installation method of intelligent substation 35kV inlet wire cable according to claim 8, it is characterized in that: be arranged on a support described in described post insulator and 35kV zinc oxide arrester are common, this support is also provided with the lightning arrester on-line monitoring device equal with 35kV zinc oxide arrester quantity, described 35kV zinc oxide arrester is connected with aluminium row, the end of this aluminium row is connected with insulated copper twisted wire, and described insulated copper twisted wire is electrically connected by a copper lug and lightning arrester on-line monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899363.8A CN105375344A (en) | 2015-12-09 | 2015-12-09 | Mounting structure and method for 35kV inlet cable of intelligent substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510899363.8A CN105375344A (en) | 2015-12-09 | 2015-12-09 | Mounting structure and method for 35kV inlet cable of intelligent substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105375344A true CN105375344A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510899363.8A Pending CN105375344A (en) | 2015-12-09 | 2015-12-09 | Mounting structure and method for 35kV inlet cable of intelligent substation |
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| CN (1) | CN105375344A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616964A (en) * | 2018-10-31 | 2019-04-12 | 国网山东省电力公司烟台供电公司 | It is a kind of can plug and play for transformer inlet wire adjustable cable bracket |
| CN110718888A (en) * | 2019-11-20 | 2020-01-21 | 中国电建集团河南工程有限公司 | Construction method of rectangular bus at generator outlet of large-scale transformer substation |
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| JP2008172958A (en) * | 2007-01-12 | 2008-07-24 | Toshiba Corp | Gas insulation opening/closing device |
| CN202121283U (en) * | 2011-06-29 | 2012-01-18 | 湖北省电力公司电力试验研究院 | 35kV power transmission line tension support lightning stroke protective device |
| CN205231473U (en) * | 2015-12-09 | 2016-05-11 | 福州万山电力咨询有限公司 | Mounting structure of intelligent substation 35kV inlet wire cable |
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2015
- 2015-12-09 CN CN201510899363.8A patent/CN105375344A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008172958A (en) * | 2007-01-12 | 2008-07-24 | Toshiba Corp | Gas insulation opening/closing device |
| CN202121283U (en) * | 2011-06-29 | 2012-01-18 | 湖北省电力公司电力试验研究院 | 35kV power transmission line tension support lightning stroke protective device |
| CN205231473U (en) * | 2015-12-09 | 2016-05-11 | 福州万山电力咨询有限公司 | Mounting structure of intelligent substation 35kV inlet wire cable |
Non-Patent Citations (4)
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| 丁毓山等: "《中小型变电所实用设计手册》", 30 June 2000 * |
| 史建庄等: "《河南省电力公司农村110kV变电站典型设计实施方案》", 30 September 2010 * |
| 潘雪峰等: "《高级电工实用技术》", 31 January 2006 * |
| 黄庆丰: "《水电站电气设备》", 30 September 2009 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616964A (en) * | 2018-10-31 | 2019-04-12 | 国网山东省电力公司烟台供电公司 | It is a kind of can plug and play for transformer inlet wire adjustable cable bracket |
| CN109616964B (en) * | 2018-10-31 | 2021-01-15 | 国网山东省电力公司烟台供电公司 | Plug-and-play adjustable cable support for transformer incoming line |
| CN110718888A (en) * | 2019-11-20 | 2020-01-21 | 中国电建集团河南工程有限公司 | Construction method of rectangular bus at generator outlet of large-scale transformer substation |
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Application publication date: 20160302 |