CN202422976U - String-variable voltage-regulating triple cut-off transformer for electric furnace - Google Patents
String-variable voltage-regulating triple cut-off transformer for electric furnace Download PDFInfo
- Publication number
- CN202422976U CN202422976U CN2011205614232U CN201120561423U CN202422976U CN 202422976 U CN202422976 U CN 202422976U CN 2011205614232 U CN2011205614232 U CN 2011205614232U CN 201120561423 U CN201120561423 U CN 201120561423U CN 202422976 U CN202422976 U CN 202422976U
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- transformer
- string
- electric furnace
- cut
- winding
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Abstract
The utility model relates to a string-variable voltage-regulating triple cut-off transformer for an electric furnace, which comprises an input component. An output component is connected onto the input component. The string-variable voltage-regulating triple cut-off transformer is characterized in that winding elements are arranged in the input component, and an auxiliary switching component is parallelly connected between an input end and an output end of each winding element. Therefore, the three Y-connection basic windings are mutually connected through respective neutral points, and grounding potential is lowered so as to be beneficial to simplification of an insulation structure and reduction of material consumption. Besides, redundant changeover switches can be omitted, and workload for daily maintenance and overhaul of the transformer is reduced.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of electric furnace and cut-offs 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.
The utility model content
The purpose of the utility model 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 purpose of the utility model realizes through following technical scheme:
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 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 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 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 the utility model technical scheme 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 purpose of the utility model, 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 the utility model technical scheme, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of the utility model requirement protection.In the middle of these accompanying drawings,
Fig. 1 is that electric furnace is pressed the organigram that cut-offs transformer for three times with the string modified tone.
Embodiment
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 utility model 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 utility model one preferred implementation, in order to be convenient to the normal power supply of winding assembly, the winding assembly that the utility model 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 utility model 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. 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. 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. 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. 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 |
|---|---|---|---|
| CN2011205614232U CN202422976U (en) | 2011-12-29 | 2011-12-29 | String-variable voltage-regulating triple cut-off transformer for electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205614232U CN202422976U (en) | 2011-12-29 | 2011-12-29 | String-variable voltage-regulating triple cut-off transformer for electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202422976U true CN202422976U (en) | 2012-09-05 |
Family
ID=46747712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205614232U Expired - Fee Related CN202422976U (en) | 2011-12-29 | 2011-12-29 | String-variable voltage-regulating triple cut-off transformer for electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202422976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568793A (en) * | 2011-12-29 | 2012-07-11 | 保定天威集团(江苏)五洲变压器有限公司 | Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology |
-
2011
- 2011-12-29 CN CN2011205614232U patent/CN202422976U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568793A (en) * | 2011-12-29 | 2012-07-11 | 保定天威集团(江苏)五洲变压器有限公司 | Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20171229 |