CN113611500A - High-voltage lead connecting device and method for double-body phase-shifting transformer - Google Patents
High-voltage lead connecting device and method for double-body phase-shifting transformer Download PDFInfo
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- CN113611500A CN113611500A CN202110834494.3A CN202110834494A CN113611500A CN 113611500 A CN113611500 A CN 113611500A CN 202110834494 A CN202110834494 A CN 202110834494A CN 113611500 A CN113611500 A CN 113611500A
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- voltage
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- oil tank
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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
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
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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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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- Manufacturing & Machinery (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a high-voltage lead connecting device and method for a double-body phase-shifting transformer, and belongs to the technical field of phase-shifting transformers. The technical scheme of the invention is as follows: the two voltage-sharing balls (3), the two voltage-sharing tubes I (6) and the two voltage-sharing tubes II (7) are connected into a whole and are arranged in a bus box (10) which is connected with the series-connection transformer oil tank (1) and the excitation transformer oil tank (2); all be equipped with wiring board (5) in two pressure-equalizing balls (3), two wiring board (5) one end are connected respectively and are established ties and become the lead wire and the excitation becomes the lead wire, and two wiring board (5) other ends are passed through lead wire (8) and are connected. According to the invention, the connecting lead outside the oil tank is assembled in the independent bus box, and the bus box is arranged between the series transformer and the excitation transformer and connected into a whole, so that the lead connection between the series transformer and the excitation transformer is realized in a smaller space, and the integral structure of the double-body phase-shifting transformer is simplified.
Description
Technical Field
The invention relates to a high-voltage lead connecting device and method for a double-body phase-shifting transformer, and belongs to the technical field of phase-shifting transformers.
Background
The high-capacity phase-shifting transformer generally adopts a double-body structure, the double-body phase-shifting transformer consists of a series transformer and an excitation transformer, and when the series transformer and the excitation transformer are respectively arranged in two independent oil tanks, the two oil tanks need to be connected by leads.
The mode of bushing connection overhead line is often adopted to the high voltage pin connection between two oil tanks, and this kind of scheme exists that equipment occupation of land space is big, and is with high costs, shortcomings such as assembly cycle length, need provide a simple compact pin connection structure.
Disclosure of Invention
The invention aims to provide a high-voltage lead connecting device and a high-voltage lead connecting method for a double-body phase-shifting transformer.
The technical scheme of the invention is as follows: a high-voltage lead connecting device of a double-body phase-shifting transformer comprises a series variable oil tank, an excitation variable oil tank, two equalizing balls, a corrugated grid, a wiring board, a first equalizing tube, a second equalizing tube, a lead and a bus box, wherein the number of the equalizing balls and the first equalizing tube is two, one equalizing ball is connected with the first equalizing tube and arranged on one side of the series variable oil tank, the other equalizing ball is connected with the other equalizing tube and arranged on one side of the excitation variable oil tank, the two equalizing tubes are connected with each other through the second equalizing tube, the two equalizing balls, the first equalizing tube and the second equalizing tube are connected into a whole and arranged in the bus box connected between the series variable oil tank and the excitation variable oil tank, and the central lines of the two equalizing balls, the first equalizing tube and the second equalizing tube are positioned on the same straight line; the corrugated grids are two, one ends of the two corrugated grids are respectively bonded on the corresponding pressure-equalizing balls, the other ends of the two corrugated grids are respectively fixed on the series variable oil tank and the excitation variable oil tank, wiring boards are respectively arranged in the two pressure-equalizing balls, one ends of the two wiring boards are respectively connected with the series variable lead and the excitation variable lead, and the other ends of the two wiring boards are connected through the leads.
And a stay and an insulating cylinder are adhered to one outer side of the pressure equalizing pipe.
The voltage-sharing tube two-way is arranged on the bus box through an insulating support structure, and the insulating support structure is matched with the voltage grade.
And the second pressure equalizing pipe is a split structure consisting of an upper semicircular pipe and a lower semicircular pipe.
The lead is positioned in the first equalizing tube and the second equalizing tube.
A high-voltage lead connection method of a double-body phase-shifting transformer adopts the lead device and comprises the following steps: firstly, an insulating support structure is arranged at the bottom of a bus box, a first voltage-sharing tube is arranged on the insulating support structure, one ends of the first voltage-sharing tubes are respectively inserted into two ends of the second voltage-sharing tube, and the other ends of the first voltage-sharing tubes are respectively connected with a voltage-sharing ball through corresponding connecting sleeves; one of the two pressure equalizing balls is connected with one pressure equalizing pipe I and then arranged on one side of the series-connection variable oil tank, the other pressure equalizing ball is connected with the other pressure equalizing pipe I and then arranged on one side of the excitation variable oil tank, the two pressure equalizing balls, the two pressure equalizing pipes I and the two pressure equalizing pipes II are connected into a whole and are arranged in a bus box which is connected with the series-connection variable oil tank and the excitation variable oil tank, and the central lines of the two pressure equalizing balls, the two pressure equalizing pipes I and the two pressure equalizing pipes II are positioned on the same straight line; the two pressure equalizing balls are respectively inserted into the corresponding corrugated grids and are fixedly bonded, the other ends of the two corrugated grids are respectively fixed on the series variable oil tank and the excitation variable oil tank, and the series variable oil tank, the excitation variable oil tank and the bus box are divided into independent oil chambers through the corrugated grids; the two voltage-sharing balls are internally provided with wiring boards, one ends of the two wiring boards are respectively connected with the series transformer lead and the excitation transformer lead, and the other ends of the two wiring boards are connected through the leads, so that the connection of the series transformer oil tank and the excitation transformer oil tank is realized.
The invention has the beneficial effects that: through the assembly of the outside connecting lead of oil tank in independent bus box, bus box installs and establishes ties and becomes and the excitation becomes between and connect as an organic whole, has realized accomplishing the pin connection that establishes ties and becomes and the excitation becomes between in less space, has simplified the overall structure of double-unit body phase-shifting transformer, and bus box becomes and the series connection becomes and the excitation becomes to realize sealed, the actual operation of being convenient for between the oil tank simultaneously.
Drawings
FIG. 1 is a structural mounting diagram of the present invention;
FIG. 2 is a side view of the present invention;
in the figure: the device comprises a series connection variable oil tank 1, an excitation variable oil tank 2, a voltage-sharing ball 3, a corrugated grid 4, a wiring board 5, a first voltage-sharing pipe 6, a second voltage-sharing pipe 7, a lead 8, an insulation supporting structure 9, a bus box 10 and a connecting sleeve 11.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments, which are preferred embodiments of the present invention. It is to be understood that the described embodiments are merely a subset of the embodiments of the invention, and not all embodiments; it should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A high-voltage lead connecting device of a double-body phase-shifting transformer comprises a series-connection variable oil tank 1, an excitation variable oil tank 2, two voltage-sharing balls 3, a corrugated grid 4, a wiring board 5, a first voltage-sharing pipe 6, a second voltage-sharing pipe 7, a lead 8 and a bus box 10, wherein the number of the voltage-sharing balls 3 and the number of the first voltage-sharing pipes 6 are two, one voltage-sharing ball 3 is connected with the first voltage-sharing pipe 6 and is arranged on one side of the series-connection variable oil tank 1, the other voltage-sharing ball 3 is connected with the other voltage-sharing pipe 6 and is arranged on one side of the excitation variable oil tank 2, the two voltage-sharing pipes 6 are connected through the second voltage-sharing pipe 7, the two voltage-sharing balls 3, the two voltage-sharing pipes 6 and the second voltage-sharing pipe 7 are connected into a whole and are arranged in the bus box 10 connecting the series-connection variable oil tank 1 and the excitation variable oil tank 2, and the central lines of the two voltage-sharing pipes 3, the first voltage-sharing pipe 6 and the second voltage-sharing pipe 7 are located on the same straight line; the corrugated grids 4 are two, one ends of the two corrugated grids 4 are respectively bonded on the corresponding equalizing balls 3, the other ends of the two corrugated grids 4 are respectively fixed on the series variable oil tank 1 and the excitation variable oil tank 2, the wiring boards 5 are respectively arranged in the two equalizing balls 3, one ends of the two wiring boards 5 are respectively connected with the series variable lead and the excitation variable lead, and the other ends of the two wiring boards 5 are connected through the leads 8.
And a stay and an insulating cylinder are adhered to the outer side of the first pressure equalizing pipe 6.
The second voltage-sharing pipe 7 is arranged at the bottom of the bus box 10 through an insulating support structure 9, and the insulating support structure is matched with the voltage grade.
The second pressure equalizing pipe 7 is a split structure consisting of an upper semicircular pipe and a lower semicircular pipe, and is convenient to install.
The lead 8 is located in the two voltage-sharing tubes one 6 and two 7.
A high-voltage lead connection method of a double-body phase-shifting transformer adopts the lead device and comprises the following steps: firstly, an insulating support structure 9 is arranged at the bottom of a bus box 10, a first equalizing tube 7 is arranged on the insulating support structure 9, one ends of two equalizing tubes 6 are respectively inserted into two ends of the second equalizing tube 7, and the other ends of the two equalizing tubes 6 are respectively connected with equalizing balls 3 through corresponding connecting sleeves; one of the pressure equalizing balls 3 is connected with one pressure equalizing pipe I6 and then arranged on one side of the series-connection variable oil tank 1, the other pressure equalizing ball 3 is connected with the other pressure equalizing pipe I6 and then arranged on one side of the excitation variable oil tank 2, the two pressure equalizing balls 3, the two pressure equalizing pipes I6 and the two pressure equalizing pipes II 7 are connected into a whole and arranged in a bus box 10 connecting the series-connection variable oil tank 1 and the excitation variable oil tank 2, and the central lines of the two pressure equalizing balls 3, the two pressure equalizing pipes I6 and the two pressure equalizing pipes II 7 are located on the same straight line; the two pressure equalizing balls 3 are respectively inserted into the corresponding corrugated grids 4 and are fixedly bonded, the other ends of the two corrugated grids 4 are respectively fixed on the series variable oil tank 1 and the excitation variable oil tank 2, and the series variable oil tank 1, the excitation variable oil tank 2 and the bus box 10 are divided into independent oil chambers through the corrugated grids 4; all be equipped with wiring board 5 in two pressure-equalizing balls 3, two wiring board 5 one end are connected respectively and are established ties and become the lead wire and the excitation becomes the lead wire, and two wiring board 5 other ends are passed through lead wire 8 and are connected, realize establishing ties and become the connection of oil tank and excitation change oil tank.
In practical application, the corrugated grid 4, the voltage-sharing ball 3, the first voltage-sharing tube 6 and the second voltage-sharing tube 7 are integrally installed in a bus box 10 connected between the series-connection transformer oil tank 1 and the excitation transformer oil tank 2, and the corrugated grid 4 divides the bus box 10, the series-connection transformer oil tank 1 and the excitation transformer oil tank 2 into independent spaces. The connector lug 5 is arranged in the voltage-sharing ball 3 and is used as a lead connecting piece to connect the series transformer and the excitation transformer, so that the lead connection of the series transformer and the excitation transformer is realized. The lead 8 is externally sleeved with a first equalizing tube 6 and a second equalizing tube 7 so as to improve the electrode shape of the lead 8. The first pressure equalizing pipe 6 is respectively inserted into the corrugated grids 4 at the two ends, and the second pressure equalizing pipe 7 is positioned in the middle and is of a split structure consisting of an upper semicircular pipe and a lower semicircular pipe, so that internal connection of leads is facilitated. An insulating support structure 9 is fixed at the bottom of the bus box 10 and is used for supporting and fixing the first voltage equalizing pipe 6 and the second voltage equalizing pipe 7. During installation, half of the second voltage-sharing tube 7 is placed on the insulating supporting structure 9, the first voltage-sharing tubes 6 at two ends are lapped on the second voltage-sharing tube 7, after internal connection of a lead is completed, the second half of the second voltage-sharing tube 7 is well buckled, the seam of the first voltage-sharing tube 6 and the second voltage-sharing tube 7 comprises the seam of the first voltage-sharing tube 6 and the pressure-sharing ball 3, an insulating partition plate is arranged at the seam of the first voltage-sharing tube 7, and oil gaps are cut off, so that the allowable electric field intensity near electrodes is improved. And after the outer-layer insulating part is installed, the whole system is wrapped by the insulating crepe paper. The integral lead structure is fixed on the insulating support structure by an omega-shaped clamp.
The use of the corrugated grid ensures the insulating property of the lead wire and also isolates the oil chambers of the serial variable oil tank, the excitation variable oil tank and the bus box. The balance ball 3, the balance tube I6 and the balance tube II 7 are matched for use, and the electrode shape of a connecting lead is improved. The second pressure equalizing pipe 7 is divided into an upper half and a lower half, so that the lead connection is facilitated, and the structure is simple and easy to operate.
Claims (6)
1. The utility model provides a two ware body phase-shifting transformer high voltage lead connecting device which characterized in that: contain series connection transformer tank (1), excitation transformer tank (2), voltage-sharing ball (3), corrugated grid (4), wiring board (5), voltage-sharing pipe (6), voltage-sharing pipe two (7), lead wire (8) and bus box (10), voltage-sharing ball (3) and voltage-sharing pipe one (6) are two, and one voltage-sharing ball (3) are connected and set up in series connection transformer tank (1) one side with one voltage-sharing pipe (6), and another voltage-sharing ball (3) are connected and set up in excitation transformer tank (2) one side with another voltage-sharing pipe one (6), connect through voltage-sharing pipe two (7) between two voltage-sharing pipe one (6), and two voltage-sharing ball (3), two voltage-sharing pipe one (6) and voltage-sharing pipe two (7) are connected and are set up as a whole in connecting series connection transformer tank (1) and excitation transformer tank (2) between bus box (10), wherein two voltage-sharing ball (3) have, The central lines of the two pressure equalizing pipes I (6) and II (7) are positioned on the same straight line; ripple bars (4) are two, and the one end of two ripple bars (4) bonds respectively on corresponding pressure-equalizing ball (3), and the other end of two ripple bars (4) is fixed respectively and is become oil tank (1) and excitation and become on oil tank (2) in series connection, all is equipped with wiring board (5) in two pressure-equalizing ball (3), and series connection becomes the lead wire and becomes the lead wire with excitation respectively to two wiring board (5) one end, and two wiring board (5) other ends pass through lead wire (8) and connect.
2. The high-voltage lead connecting device of the dual-body phase-shifting transformer of claim 1, wherein: and a stay and an insulating cylinder are adhered to the outer side of the first pressure equalizing pipe (6).
3. The high-voltage lead connecting device of the dual-body phase-shifting transformer according to claim 1 or 2, wherein: and the second voltage equalizing pipe (7) is arranged on the bus box (10) through an insulating support structure (9).
4. The high-voltage lead connecting device of the dual-body phase-shifting transformer according to claim 1 or 2, wherein: the second pressure equalizing pipe (7) is of a split structure consisting of an upper semicircular pipe and a lower semicircular pipe.
5. The high-voltage lead connecting device of the dual-body phase-shifting transformer according to claim 1 or 2, wherein: the lead (8) is positioned in the two voltage-sharing tubes I (6) and II (7).
6. A high-voltage lead connection method of a double-body phase-shifting transformer adopts a lead device of any one of claims 1 to 5, and is characterized by comprising the following steps: firstly, an insulating support structure (9) is arranged at the bottom of a bus box (10), a first voltage-sharing tube (7) is arranged on the insulating support structure (9), one ends of two first voltage-sharing tubes (6) are respectively inserted into two ends of the second voltage-sharing tube (7), and the other ends of the two first voltage-sharing tubes (6) are respectively connected with a voltage-sharing ball (3) through corresponding connecting sleeves (11); one of the pressure equalizing balls (3) is connected with one of the pressure equalizing pipes I (6) and then arranged on one side of the series-connection variable oil tank (1), the other of the pressure equalizing balls (3) is connected with the other of the pressure equalizing pipes I (6) and then arranged on one side of the excitation variable oil tank (2), the two pressure equalizing balls (3), the two pressure equalizing pipes I (6) and the pressure equalizing pipes II (7) are connected into a whole and arranged in a bus box (10) which is connected with the series-connection variable oil tank (1) and the excitation variable oil tank (2), and the center lines of the two pressure equalizing balls (3), the two pressure equalizing pipes I (6) and the pressure equalizing pipes II (7) are positioned on the same straight line; the two pressure equalizing balls (3) are respectively inserted into the corresponding corrugated grids (4) and are fixedly bonded, the other ends of the two corrugated grids (4) are respectively fixed on the series variable oil tank (1) and the excitation variable oil tank (2), and the series variable oil tank (1), the excitation variable oil tank (2) and the bus box (10) are divided into independent oil chambers through the corrugated grids (4); all be equipped with wiring board (5) in two pressure-equalizing balls (3), two wiring board (5) one end are connected respectively and are established ties and become the lead wire and the excitation becomes the lead wire, and two wiring board (5) other ends are connected through lead wire (8), realize establishing ties and become the connection of oil tank and excitation change oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110834494.3A CN113611500B (en) | 2021-07-23 | 2021-07-23 | High-voltage lead connecting device and method for double-body phase-shifting transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110834494.3A CN113611500B (en) | 2021-07-23 | 2021-07-23 | High-voltage lead connecting device and method for double-body phase-shifting transformer |
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| CN113611500A true CN113611500A (en) | 2021-11-05 |
| CN113611500B CN113611500B (en) | 2022-09-23 |
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| CN202110834494.3A Active CN113611500B (en) | 2021-07-23 | 2021-07-23 | High-voltage lead connecting device and method for double-body phase-shifting transformer |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262883Y (en) * | 2008-08-27 | 2009-06-24 | 保定天威集团有限公司 | Two-pole parallel connection end 500kV outlet device OF transformer |
| CN102930961A (en) * | 2012-11-15 | 2013-02-13 | 常州市英中电气有限公司 | Grid side wire outlet device of super-high voltage converter transformer |
| CN111540573A (en) * | 2020-06-08 | 2020-08-14 | 保定天威保变电气股份有限公司 | Detachable high-voltage lead for connecting two transformers and connecting method |
| CN215578125U (en) * | 2021-07-23 | 2022-01-18 | 保定天威保变电气股份有限公司 | High-voltage lead connecting device of double-body phase-shifting transformer |
-
2021
- 2021-07-23 CN CN202110834494.3A patent/CN113611500B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262883Y (en) * | 2008-08-27 | 2009-06-24 | 保定天威集团有限公司 | Two-pole parallel connection end 500kV outlet device OF transformer |
| CN102930961A (en) * | 2012-11-15 | 2013-02-13 | 常州市英中电气有限公司 | Grid side wire outlet device of super-high voltage converter transformer |
| CN111540573A (en) * | 2020-06-08 | 2020-08-14 | 保定天威保变电气股份有限公司 | Detachable high-voltage lead for connecting two transformers and connecting method |
| CN215578125U (en) * | 2021-07-23 | 2022-01-18 | 保定天威保变电气股份有限公司 | High-voltage lead connecting device of double-body phase-shifting transformer |
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| CN113611500B (en) | 2022-09-23 |
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