CN203812706U - Oil immersion type auto-transformer for motor voltage reduction starting - Google Patents
Oil immersion type auto-transformer for motor voltage reduction starting Download PDFInfo
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- CN203812706U CN203812706U CN201420186999.9U CN201420186999U CN203812706U CN 203812706 U CN203812706 U CN 203812706U CN 201420186999 U CN201420186999 U CN 201420186999U CN 203812706 U CN203812706 U CN 203812706U
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- oil
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Abstract
The utility model relates to an oil immersion type auto-transformer for motor voltage reduction starting to effectively solve the problems that casing pipes are in arc discharging, cost is high and efficiency is low. According to the structure of the oil immersion type auto-transformer, an oil storage cabinet is arranged on the upper portion of an oil tank and a tank cover, an oil discharging valve is arranged on the lower portion of the oil tank, an insulating casing pipe of a high-voltage binding post is arranged over the oil tank and on the tank cover, iron cores are arranged in the oil tank and are respectively sleeved with a series winding and a common winding, a terminal box is arranged on the portion, on the lower portion of the oil storage cabinet, of the oil tank, a terminal of a pressure and relay protection device is arranged in the terminal box, a voltage regulating tap changer in the middle of each common winding is provided with a tap changer linkage sheet, each voltage regulating tap changer is led out through a voltage regulating insulating terminal installed on the wall of the oil tank to form a voltage regulating structure in the middle of the corresponding common winding, and the head of each common winding and the tail of the corresponding series winding are welded and led out together to be connected to the high-voltage binding post in the corresponding insulating casing pipe together with the head of the series winding and the tail of the common winding. The oil immersion type auto-transformer is low in cost, easy to install and use, high in efficiency and capable of effectively preventing arc discharging between the casing pipes when the environment is severe.
Description
Technical field
The utility model relates to power equipment, particularly a kind of motor reduced voltage starting oil immersed type autotransformer.
Background technology
Transformer is that transmission facility is requisite, state's built-in motor reduced voltage starting oil immersed type autotransformer, is generally the pressure regulation of secondary line end at present, and transformer input, output, neutral point and voltage adjusting end are all drawn through sleeve pipe from case lid, because electric current is large, generally without shunting switch.Due to structural problem, on case lid sleeve pipe too much, too concentrated, not only for arranging that sleeve pipe needs to increase fuel tank volume, and in the time that environment is severe, also easily cause arcing between sleeve pipe, be not only difficult for wiring, and in the time that motor reduced voltage starting needs pressure regulation, also need dismounting cable, this voltage regulating mode cost is high, installs, regulates workload large, and efficiency is low.Therefore, its improvement and bring new ideas is imperative.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the utility model is just to provide a kind of motor reduced voltage starting oil immersed type autotransformer, can effectively solve arcing between sleeve pipe, and cost is high, trouble is installed, inefficient problem.
The technical scheme that the utility model solves is, comprise fuel tank, iron core, common winding, series connection winding and insulating sleeve, fuel tank top one side is equipped with oil conservator on case lid, fuel outlet valve is equipped with in the bottom of fuel tank opposite side, the insulating sleeve of high-voltage connection terminal is housed directly over fuel tank on case lid, iron core is placed in fuel tank, series connection winding is sleeved on iron core, common winding is sleeved on outside series connection winding, terminal box is equipped with in oil conservator bottom on fuel tank outer wall, in terminal box, be provided with pressure, the terminal of protective relaying device, common winding middle part is for being equipped with the tap connection sheet of adjustable connector position on the pressure regulation tap of pressure regulation, pressure regulation tap is drawn through the pressure regulation insulated terminal being contained on oil tank wall, form the pressure adjusting structure at common winding middle part, the first head of common winding welds together and draws with the winding tail head of connecting, with the first head of the winding of connecting, common winding tail head connects respectively the high-voltage connection terminal being placed in insulating sleeve.
The utility model is simple in structure, and novel unique, not only cost is low, easily installs and uses, and efficiency is high, and has effectively prevented from easily causing when environment is severe the unsafe problems of arcing between sleeve pipe, has good economic and social benefit.
Brief description of the drawings
Fig. 1 is structural front view of the present utility model (partly cut-away).
Fig. 2 is vertical view of the present utility model.
Fig. 3 is winding connecting structure figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
Shown in Fig. 1-3, the utility model comprises fuel tank, iron core, common winding, series connection winding and insulating sleeve, fuel tank 6 top one sides are equipped with oil conservator 11 on case lid 8, fuel outlet valve 14 is equipped with in the bottom of fuel tank 6 opposite sides, the insulating sleeve of high-voltage connection terminal is housed directly over fuel tank on case lid 8, iron core 1 is placed in fuel tank, series connection winding 2 is sleeved on iron core, common winding 3 is sleeved on outside series connection winding, terminal box 12 is equipped with in oil conservator 11 bottoms on fuel tank outer wall, in terminal box, be provided with pressure, the terminal of protective relaying device, common winding middle part is for being equipped with the tap connection sheet 4 of adjustable connector position on the pressure regulation tap 5 of pressure regulation, pressure regulation tap 5 is drawn through the pressure regulation insulated terminal being contained on oil tank wall, form the pressure adjusting structure at common winding middle part, the first head of common winding welds together and draws with the winding tail head of connecting, with the first head of the winding of connecting, common winding tail head connects respectively the high-voltage connection terminal 15 being placed in insulating sleeve.
In order to ensure safe operation, on described case lid, there is pressure relieving valve 16, fuel tank bottom is placed on base 13; Described common winding 3 is made up of public the first winding, public the second winding, the public tertiary winding, and public the first winding has first a, public the second winding to have first b, the public tertiary winding to have first c; Series connection winding is made up of the series connection corresponding with common winding three-phase the first winding, series connection the second winding, the series connection tertiary winding, first winding of connecting has first A, series connection the second winding to have first B, the series connection tertiary winding to have first C, and series connection winding has 3 corresponding tail heads; Public the first winding has tail head x, public the second winding to have tail head y, the public tertiary winding to have tail head z, common winding tail head x, y, z connects the main contact of A.C. contactor 17, by the A.C. contactor formation neutral point that links together, first A, B, the C of series connection winding are connected with the HV Terminal in 3 insulating sleeves 9 respectively, the tail head x, y, z of common winding is connected with the binding post in 3 insulating sleeves 7 respectively, and 3 tail heads first a, b, c corresponding with common winding of series connection winding welds together respectively and be connected with the binding post in 3 insulating sleeves 10.
Described common winding middle part voltage regulating tap has 3 groups, and every group has 4 taps, its center tap 4., be 2. connected, joint 3., be 5. connected, joint 4., 2. through tap connection sheet 4 and joint 3., be 5. connected, formation middle part voltage regulating structure.
Can be found out by said structure, motor reduced voltage starting described in the utility model has series connection winding 2, common winding 3 to be sleeved on successively on iron core 1 with oil immersed type autotransformer, the first head of common winding 3 (a, b, c) welds together with the winding 2 tail heads of connecting, draw in the lump case lid 8 with the series connection first head of winding 2 (A, B, C), common winding 3 tail heads (x, y, z) through sleeve pipe, pressure regulation tap is drawn from tank wall nearby through insulator 5.Tail head x, y, z is by the main contact of the A.C. contactor 17 formation neutral point that links together in auto-transformer starting loop.The different link positions that on tank wall, voltage adjusting end 5 joins sheet 4 by tap can regulate motor starting voltage.
Fig. 3 head A is connected with the A of Fig. 1,2 sleeve pipes 9, and Fig. 3 head B is connected with the B of Fig. 1,2 sleeve pipes 9, and Fig. 3 head C is connected with the C of Fig. 1,2 sleeve pipes 9; Fig. 3 head a is connected with a of Fig. 1,2 sleeve pipes 10, and Fig. 3 head b is connected with the b of Fig. 1,2 sleeve pipes 10, and Fig. 3 head c is connected with the c of Fig. 1,2 sleeve pipes 10; Fig. 3 tail x is connected with the x of Fig. 1,2 sleeve pipes 7, and Fig. 3 tail y is connected with the y of Fig. 1,2 sleeve pipes 7, and Fig. 3 tail z is connected with the z of Fig. 1,2 sleeve pipes 7; 5. 4. 3. 2. 5. 4. 3. 2. public the first winding tap of Fig. 3 be connected with the tap in public the first winding of Fig. 1 respectively, public the second winding tap of Fig. 3 2. 3. 4. 5. respectively with being 2. 3. 4. 5. connected of tap in public the second winding of Fig. 1,5. 4. 3. 2. 5. 4. 3. 2. the public tertiary winding tap of Fig. 3 be connected with the tap in the public tertiary winding of Fig. 1 respectively.
The utility model adopts common winding middle part voltage regulating mode, and pressure regulation part draws from tank wall, has reduced sleeve pipe quantity on case lid, need not increase fuel tank volume and just make to overlap tube pitch and strengthen, and then can reduce environment arcing phenomenon between sleeve pipe when severe; The minimizing of sleeve pipe on case lid simultaneously, is also easy to the connection of cable; The more important thing is while regulating motor starting voltage, only need conversion pressure regulation tap connection sheet, and do not need dismounting output cable, so have more compared with the prior art superiority, is the innovation on transformer, has good economic and social benefit.
Claims (4)
1. a motor reduced voltage starting oil immersed type autotransformer, comprise fuel tank, iron core, common winding, series connection winding and insulating sleeve, it is characterized in that, fuel tank (6) top one side is equipped with oil conservator (11) on case lid (8), fuel outlet valve (14) is equipped with in the bottom of fuel tank (6) opposite side, the insulating sleeve of high-voltage connection terminal is housed directly over fuel tank on case lid (8), iron core (1) is placed in fuel tank, series connection winding (2) is sleeved on iron core, common winding (3) is sleeved on outside series connection winding, terminal box (12) is equipped with in oil conservator (11) bottom on fuel tank outer wall, in terminal box, be provided with pressure, the terminal of protective relaying device, common winding middle part is for being equipped with the tap connection sheet (4) of adjustable connector position on the pressure regulation tap (5) of pressure regulation, pressure regulation tap (5) is drawn through the pressure regulation insulated terminal being contained on oil tank wall, form the pressure adjusting structure at common winding middle part, the first head of common winding welds together and draws with the winding tail head of connecting, with the first head of the winding of connecting, common winding tail head connects respectively the high-voltage connection terminal (15) being placed in insulating sleeve.
2. motor reduced voltage starting oil immersed type autotransformer according to claim 1, is characterized in that, has pressure relieving valve (16) on described case lid, and fuel tank bottom is placed on base (13).
3. motor reduced voltage starting oil immersed type autotransformer according to claim 1, it is characterized in that, described common winding (3) is made up of public the first winding, public the second winding, the public tertiary winding, and public the first winding has first a, public the second winding to have first b, the public tertiary winding to have first c, series connection winding is made up of the series connection corresponding with common winding three-phase the first winding, series connection the second winding, the series connection tertiary winding, first winding of connecting has first A, series connection the second winding to have first B, the series connection tertiary winding to have first C, and series connection winding has 3 corresponding tail heads, public the first winding has tail head x, public the second winding has tail head y, the public tertiary winding has tail head z, common winding tail head x, y, z connects the main contact of A.C. contactor (17), by the A.C. contactor formation neutral point that links together, first A of series connection winding, B, C is connected with the HV Terminal in 3 insulating sleeves (9) respectively, the tail head x of common winding, y, z is connected with the binding post in 3 insulating sleeves (7) respectively, 3 tail heads first a corresponding with common winding of series connection winding, b, c welds together respectively and is connected with the binding post in 3 insulating sleeves (10).
4. motor reduced voltage starting oil immersed type autotransformer according to claim 1, it is characterized in that, described common winding middle part voltage regulating tap has 3 groups, every group has 4 taps, its center tap 4., be 2. connected, joint 3., be 5. connected, joint 4., 2. through tap connection sheet 4 and joint 3., be 5. connected, formation middle part voltage regulating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186999.9U CN203812706U (en) | 2014-04-17 | 2014-04-17 | Oil immersion type auto-transformer for motor voltage reduction starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186999.9U CN203812706U (en) | 2014-04-17 | 2014-04-17 | Oil immersion type auto-transformer for motor voltage reduction starting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812706U true CN203812706U (en) | 2014-09-03 |
Family
ID=51451426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186999.9U Expired - Fee Related CN203812706U (en) | 2014-04-17 | 2014-04-17 | Oil immersion type auto-transformer for motor voltage reduction starting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378177A (en) * | 2018-12-06 | 2019-02-22 | 四川星脉电子科技有限责任公司 | Oil-immersed transformer |
-
2014
- 2014-04-17 CN CN201420186999.9U patent/CN203812706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378177A (en) * | 2018-12-06 | 2019-02-22 | 四川星脉电子科技有限责任公司 | Oil-immersed transformer |
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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: 20140903 Termination date: 20160417 |