CN201766007U - Star-delta reversing switch device for transformer - Google Patents
Star-delta reversing switch device for transformer Download PDFInfo
- Publication number
- CN201766007U CN201766007U CN2010202824662U CN201020282466U CN201766007U CN 201766007 U CN201766007 U CN 201766007U CN 2010202824662 U CN2010202824662 U CN 2010202824662U CN 201020282466 U CN201020282466 U CN 201020282466U CN 201766007 U CN201766007 U CN 201766007U
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- CN
- China
- Prior art keywords
- star
- delta
- triangle
- reversing
- transformer
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a star-delta reversing switch device for a transformer, which comprises a cabinet frame, through-wall sleeves disposed on the cabinet frame, connection buses led in via through-wall ducts, and a star-delta reversing disconnector installed on the cabinet frame. One end of each connection bus is connected with a second primary cable, the other end is connected with a first static knife component of the star-delta reversing disconnector, a movable knife accessory of the star-delta reversing disconnector is connected with a first primary cable, and an overcurrent protection device and a grounding switch are connected between the first static knife component and the second primary cable of the star-delta reversing disconnector. The star-delta reversing switch device is small in volume, beautiful in appearance, simple in operation, high in reliability and low in cost, and is mainly used for changing heating temperature of arc furnaces in 40.5kV three-phase alternating-current 50Hz indoor power systems for industrial and mining enterprises during ore processing.
Description
Technical field
The utility model relates to the control appliance that a kind of transformer connection mode is changed, and particularly relates to a kind of switchgear that ore heat furnace transformer is switched with star-triangle of controlling.
Background technology
Switchgear in electric power system as power plant, the power transformation switchgear house of the industrial and mining enterprises usefulness of accepting and distributing electric energy in one's power; comprise tank bracket, be arranged on the main bus bar system that forms by wall bushing and main bus bar on the tank bracket, be arranged on the tank bracket branch bus system that is connected with the main bus bar system and forms by branch bus, switch, instrument transformer, overvoltage protection and cable.Generally, the user receives in the branch bus system of switchgear after according to self needs transformer being connected into star or triangle again, thereby accepts electric energy.In this case, the user can only select a kind of in star or delta connection mode; But in the production process of ore, the user need switch between star and delta connection mode ore heat furnace transformer.In order to satisfy this demand, produced the switchgear that control ore heat furnace transformer star-triangle is switched.It is to adopt a star-star connection switchgear and a delta connection switchgear to realize jointly that existing star-triangle is switched, the outlet branch bus of electric power system front end outlet breaker cabinet is transferred to respectively in star-star connection switchgear and the delta connection switchgear, because star-star connection and delta connection are arranged in respectively in two switchgears, thereby at star, can only rely on electrical interlock in the process of triangle conversion, the misoperation of three-phase shortcircuit easily takes place under the situation that electrical interlock lost efficacy, and two switch cubicles all need be operated in the process of conversion, also increase the difficulty and the change-over time of operation greatly, also increased user's use cost simultaneously.
The utility model content
The purpose of this utility model is to overcome above-mentioned shortcoming, provide a kind of star-delta connection and conversion all in a switchgear, and transformer simple to operate, that reliability is high, floor space is little is switched switchgear with star-triangle.
The utility model transformer is switched switchgear with star-triangle and is comprised tank bracket, is arranged on the wall bushing on the tank bracket; interbus by conduit introducing through walls; star-the triangle that is installed on the tank bracket is switched isolating switch, and is arranged on overcurrent protection device and earthed switch on the tank bracket.Wherein, star-triangle is switched isolating switch by support, the rack-mount first quiet knife assembly and moving knife annex, be installed in the second quiet knife assembly on the tank bracket, one end and moving knife annex are rotationally connected, the movable touch knife that the other end cooperates with the first or second quiet knife assembly, and an end is connected with rotating shaft on being arranged on support, the insulated tension pole that the other end and movable touch knife are rotationally connected is formed.Interbus one end is connected with the second cables; the other end is switched the isolating switch first quiet knife assembly with star-triangle and is connected; the moving knife annex that star-triangle is switched isolating switch is connected with the first cables, and overcurrent protection device and earthed switch are connected in the middle of star-triangle switches the isolating switch first quiet knife assembly and the second cables are connected.
The operation principle that the utility model transformer is switched switchgear with star-triangle is, during operate as normal, operate the star-triangle of this switchgear and switch the position that isolating switch is in to be needed, the outlet circuit breaker that closes again and be positioned at the electric power system front end, power supply is introduced star-triangle switchgear through interbus, feeds out electric power system rear end transformer through the first cables and the second cables again.When in the circuit because of thunderbolt or operation when overvoltage occurring, the breakdown formation path of overvoltage protection, thereby other element of protection circuit.When repair apparatus, earthed switch closes and closes, and entire equipment is in the reliable ground state.The first cables connect Z, X, the Y terminals that need control transformer after drawing in the cabinet, and the second cables connect A, B, the C terminals of this transformer.Operation star-triangle is switched isolating switch, and movable touch knife is combined with the second quiet knife assembly, and star-triangle is switched isolating switch and closed in the star position, makes Z, X, the Y terminals short circuit of transformer, and at this moment, the transformer three-phase is in the star-star connection mode; In like manner, operation star-triangle is switched isolating switch, movable touch knife is combined with the first quiet knife assembly, star-triangle is switched isolating switch and is in triangle position, the first cables are switched isolating switch and the second cable short circuits by star-triangle, and A-X, the B-Y of transformer, C-Z are linked to each other respectively, and promptly the transformer three-phase coil joins end to end, at this moment, the transformer three-phase is in the delta connection mode.Because the mode of connection difference of transformer when isolating switch 5 is in diverse location, the output current of transformer also has than big-difference, thereby flows into the electric current difference of electric power system terminal electrodes in mine hot stove, has reached the purpose that changes its heating-up temperature.
The advantage that the utility model transformer is switched switchgear with star-triangle is to realize by it conversion of the star-star connection mode and the delta connection mode of transformer easy to operately, for the user provides a kind of more economical selection.This equipment volume is little, good looking appearance, simple to operate, reliability is high, cost is low.Change the usefulness of the heating-up temperature of the hot stove in ore deposit when the processing ore mainly as industrial and mining enterprises in the indoor electric power system of 40.5kV three-phase alternating current 50Hz.
Description of drawings
Fig. 1: the utility model structural representation
Embodiment
The utility model transformer is switched switchgear with star-triangle and is comprised tank bracket 1, is arranged on the wall bushing 6 on the tank bracket 1, and by the interbus 4 that conduit 6 through walls is introduced, the star-triangle that is installed on the tank bracket 1 is switched isolating switch 5.Wherein, star-triangle is switched isolating switch 5 and is comprised support 11, be installed in first quiet knife assembly 9 and the moving knife annex 10 on the support 11, be installed in the second quiet knife assembly 12 on the tank bracket, one end and moving knife annex 10 are rotationally connected, the other end and the first or second quiet knife assembly 9 or 12 movable touch knifes that cooperate 13, and the one end is connected the insulated tension pole 15 that the other end is connected with movable touch knife 13 with rotating shaft 14 on being arranged on support 11.Interbus 4 one ends are connected with the second cables 3; the other end is connected with the first quiet knife assembly 9 that star-triangle is switched isolating switch 5; the moving knife annex 10 that star-triangle is switched isolating switch 5 is connected with the first cables 2, in the middle of overvoltage protection 7 and earthed switch 8 are connected to the first quiet knife assembly 9 that star-triangle switches isolating switch 5 and the second cables 3 are connected.
Claims (1)
1. a transformer is switched switchgear with star-triangle; comprise tank bracket; be arranged on the wall bushing on the tank bracket; interbus by conduit introducing through walls; be arranged on the first cables and second cable again and again on the tank bracket; and be arranged on overvoltage protection and earthed switch on the tank bracket; it is characterized in that being equipped with on the tank bracket star-triangle and switch isolating switch; it is by support; the rack-mount first quiet knife assembly and moving knife annex; be installed in the second quiet knife assembly on the tank bracket; one end and moving knife annex are rotationally connected; the movable touch knife that the other end cooperates with the first or second quiet knife assembly; and one end be connected with rotating shaft on being arranged on support; the insulated tension pole that the other end and movable touch knife are rotationally connected is formed; interbus one end is connected with the second cables; the other end is switched the isolating switch first quiet knife assembly with star-triangle and is connected; the moving knife annex that star-triangle is switched isolating switch is connected with the first cables, and overvoltage protection and earthed switch are connected in the middle of star-triangle switches the isolating switch first quiet knife assembly and the second cables are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202824662U CN201766007U (en) | 2010-08-05 | 2010-08-05 | Star-delta reversing switch device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202824662U CN201766007U (en) | 2010-08-05 | 2010-08-05 | Star-delta reversing switch device for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766007U true CN201766007U (en) | 2011-03-16 |
Family
ID=43718617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202824662U Expired - Fee Related CN201766007U (en) | 2010-08-05 | 2010-08-05 | Star-delta reversing switch device for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201766007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520325A (en) * | 2012-01-05 | 2012-06-27 | 辽宁省电力有限公司丹东供电公司 | Centralized control cabinet for transformer sleeve test and use method thereof |
| CN112736752A (en) * | 2020-12-25 | 2021-04-30 | 天水长城开关厂集团有限公司 | Isolator of aerify cabinet star connection and triangle-shaped wiring conversion |
-
2010
- 2010-08-05 CN CN2010202824662U patent/CN201766007U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520325A (en) * | 2012-01-05 | 2012-06-27 | 辽宁省电力有限公司丹东供电公司 | Centralized control cabinet for transformer sleeve test and use method thereof |
| CN112736752A (en) * | 2020-12-25 | 2021-04-30 | 天水长城开关厂集团有限公司 | Isolator of aerify cabinet star connection and triangle-shaped wiring conversion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Electrical Apparatus Co., Ltd. Assignor: Sichuan Electrical Apparatus Group Co., Ltd. Contract record no.: 2011510000078 Denomination of utility model: Star-delta reversing switch device for transformer Granted publication date: 20110316 License type: Exclusive License Record date: 20110607 |
|
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN ELECTRICAL APPLIANCE GROUP CO., LTD. Free format text: FORMER NAME: SICHUAN ELECTRICAL APPARATUS GROUP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 610091, No. 5, West core road, hi tech West District, Sichuan, Chengdu Patentee after: SEAC Group Co., Ltd. Address before: 610731, building 5, No. 3, West core road, hi tech West, Sichuan, Chengdu Patentee before: Sichuan Electrical Apparatus Group Co., Ltd. |
|
| 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: 20110316 Termination date: 20180805 |