CN102568793A - Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology - Google Patents
Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology Download PDFInfo
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- CN102568793A CN102568793A CN2011104494990A CN201110449499A CN102568793A CN 102568793 A CN102568793 A CN 102568793A CN 2011104494990 A CN2011104494990 A CN 2011104494990A CN 201110449499 A CN201110449499 A CN 201110449499A CN 102568793 A CN102568793 A CN 102568793A
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Abstract
The invention relates to an electric furnace transformer using a serial conversion pressure regulation three-time connection-disconnection technology. The transformer comprises an input assembly, and an output assembly is connected on the input assembly. The transformer is characterized in that the input assembly is internally provided with a winding assembly, and simultaneously an auxiliary switching assembly is connected between an input end and an output end of the winding assembly in parallel. Therefore, three fundamental windings with a Y type connection mode can be connected with one another through respective neutral points, requirements on place positions are reduced, an insulating structure is simplified and the material consumption is saved. Simultaneously, redundant switching switches are removed, the work load for daily maintaining and overhauling of the transformer can be reduced.
Description
Technical field
The present invention relates to a kind of transformer, relate in particular to a kind of electric furnace and cut-off transformer three times with string modified tone pressure.
Background technology
Furnace transformer is a transformer of supplying with the industrial electric furnace power supply, comprising arc furnace, the hot stove of refining furnace and ore deposit etc.Because the high speed development of China's smelting industry, the capacity of separate unit furnace transformer is increasing, and line voltage grade of living in is increasingly high.The combined floodgate of transformer and disconnected lock can produce electrical network and impact, and simultaneously because the vacuum circuit-breaker safety operation number of times that high voltage power network uses is fewer, in this case, the string that transformer occurred modifies tone to press and cut-offs technology three times.Its operation principle is: when transformer load need break off, primary cut-out did not break off, but three sides disconnections, the transformer low voltage terminal is with switch short circuit and ground connection, and making low-voltage terminal is zero potential.
But, can't reduce the position, place, the part of employing is also more, is unfavorable for daily working service.
Summary of the invention
The object of the invention is exactly the problems referred to above that exist in the prior art in order to solve, and provides a kind of electric furnace to modify tone to press with string and cut-offs transformer three times.
The object of the invention is realized through following technical scheme:
A kind of electric furnace modifies tone to press with string and cut-offs transformer three times; Include input module; Be connected with output precision on the described input module, wherein: be provided with winding assembly in the described input module, be parallel with auxiliary changeover module between the input of described winding assembly and the output.
Further; Above-mentioned a kind of electric furnace modifies tone to press with string and cut-offs transformer three times; Wherein: described winding assembly connects the basic winding of method at least three Y, and three Y connect the neutral point of the basic winding of method through separately and interconnect, and each Y connects on the basic winding of method and is provided with on-load voltage regulating switch.
Further, above-mentioned a kind of electric furnace modifies tone to press with string and cut-offs transformer three times, and wherein: described output precision uprises the pressure winding for string.
Again further, above-mentioned a kind of electric furnace modifies tone to press with string and cut-offs transformer three times, and wherein: described auxiliary changeover module is a diverter switch.
The advantage of technical scheme of the present invention is mainly reflected in: three Y connect the neutral point of the basic winding of method through separately and interconnect, and are low to the place potential drop, help simplifying the consumption of insulation system economical with materials.Simultaneously, can remove unnecessary diverter switch from, reduce the workload of transformer operating repairs.
Description of drawings
The object of the invention, advantage and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical scheme of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of requirement protection of the present invention.In the middle of these accompanying drawings,
Fig. 1 is that this electric furnace is pressed the organigram that cut-offs transformer for three times with the string modified tone.
Embodiment
A kind of electric furnace as shown in Figure 1 modifies tone to press with string and cut-offs transformer three times, includes input module 1, on input module 1, is connected with output precision 2, and its unusual part is: be provided with winding assembly in the input module 1 that the present invention adopted.Simultaneously, switch, between the input of winding assembly and output, be parallel with auxiliary changeover module for the ease of pressure regulation.
With regard to the present invention's one preferred implementation, in order to be convenient to the normal power supply of winding assembly, the winding assembly that the present invention adopted connects the basic winding 3 of method at least three Y.Specifically, three Y connect the neutral point of the basic winding 3 of method through separately and interconnect.And,, connect on the basic winding 3 of method at each Y and be provided with on-load voltage regulating switch 4 in order to cooperate effective running of auxiliary changeover module.
Further, in order to promote operating efficiency, realize output stably, the output precision 2 of employing uprises the pressure winding for string.
Moreover, consider each winding the place potential energy is enough effectively reduced, the auxiliary changeover module of employing is a diverter switch 5.Simultaneously, the normality of diverter switch 5 is a closure state.
Can find out through above-mentioned character express, adopt the present invention after, three Y connect the neutral point of the basic winding of method through separately and interconnect, and are low to the place potential drop, help simplifying the consumption of insulation system economical with materials.Simultaneously, can remove unnecessary diverter switch from, reduce the workload of transformer operating repairs.
Claims (4)
1. an electric furnace is pressed with the string modified tone and is cut-off transformer three times; Include input module; Be connected with output precision on the described input module, it is characterized in that: be provided with winding assembly in the described input module, be parallel with auxiliary changeover module between the input of described winding assembly and the output.
2. a kind of electric furnace according to claim 1 modifies tone to press with string and cut-offs transformer three times; It is characterized in that: described winding assembly connects the basic winding of method at least three Y; Three Y connect the neutral point of the basic winding of method through separately and interconnect, and each Y connects on the basic winding of method and is provided with on-load voltage regulating switch.
3. a kind of electric furnace according to claim 1 modifies tone to press with string and cut-offs transformer three times, and it is characterized in that: described output precision uprises the pressure winding for string.
4. a kind of electric furnace according to claim 1 modifies tone to press with string and cut-offs transformer three times, and it is characterized in that: described auxiliary changeover module is a diverter switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104494990A CN102568793A (en) | 2011-12-29 | 2011-12-29 | Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104494990A CN102568793A (en) | 2011-12-29 | 2011-12-29 | Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102568793A true CN102568793A (en) | 2012-07-11 |
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ID=46413970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104494990A Pending CN102568793A (en) | 2011-12-29 | 2011-12-29 | Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102568793A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227707A (en) * | 1988-07-15 | 1990-01-30 | Fuji Electric Co Ltd | Transformer for electric furnace |
| CN2125872U (en) * | 1992-05-25 | 1992-12-23 | 沈阳变压器厂 | Monophase type adjustable transformer |
| CN101819854A (en) * | 2010-04-22 | 2010-09-01 | 江西变压器科技股份有限公司 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
| CN202422976U (en) * | 2011-12-29 | 2012-09-05 | 保定天威集团(江苏)五洲变压器有限公司 | String-variable voltage-regulating triple cut-off transformer for electric furnace |
-
2011
- 2011-12-29 CN CN2011104494990A patent/CN102568793A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227707A (en) * | 1988-07-15 | 1990-01-30 | Fuji Electric Co Ltd | Transformer for electric furnace |
| CN2125872U (en) * | 1992-05-25 | 1992-12-23 | 沈阳变压器厂 | Monophase type adjustable transformer |
| CN101819854A (en) * | 2010-04-22 | 2010-09-01 | 江西变压器科技股份有限公司 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
| CN202422976U (en) * | 2011-12-29 | 2012-09-05 | 保定天威集团(江苏)五洲变压器有限公司 | String-variable voltage-regulating triple cut-off transformer for electric furnace |
Non-Patent Citations (1)
| Title |
|---|
| 郭井申等: "三次侧开断电炉变压器的短路电抗计算", 《变压器》, vol. 48, no. 3, 31 March 2011 (2011-03-31), pages 1 - 5 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |