CN104064335A - Mutual inductance power source for built-in fusible cutout - Google Patents
Mutual inductance power source for built-in fusible cutout Download PDFInfo
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- CN104064335A CN104064335A CN201410253843.2A CN201410253843A CN104064335A CN 104064335 A CN104064335 A CN 104064335A CN 201410253843 A CN201410253843 A CN 201410253843A CN 104064335 A CN104064335 A CN 104064335A
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Abstract
The invention relates to a mutual inductance power source for a built-in fusible cutout. The mutual inductance power source is characterized in that power source high-voltage connection drivepipes are mounted on a power source coil, fusible cutouts are mounted inside the power source high-voltage connection drivepipes, metal flexible strips are mounted in the rear ends of fusible cutout mounting holes, the rear end faces of the metal flexible strips are connected with high-voltage connections educed from the power source coil, the front end faces of the metal flexible strips are connected with the fusible cutouts, the front ends of the fusible cutout mounting holes are inserted into the cable connectors of high-voltage cables, compressing sheets are mounted at the tail parts of the cable connectors, the mounting holes of the compressing sheets are connected with connecting pieces through threaded pulling rods, fixing screw holes are formed in the two sides of the power source high-voltage connection drivepipes, the connecting pieces are connected with the fixing screw holes through bolts, and the cable connectors are enabled to be connected with the power source high-voltage connection drivepipes through adjusting a clamping nut. According to the invention, the mutual inductance power source is reasonable in structural design and convenient and rapid in operation; the mutual inductance power source is adopted, so that the economic expenditure can be reduced, the working speed can be increased, the mounting can be reliable, and the mutual inductance power source is particularly suitable for utilization in old project restruction.
Description
Technical field
The present invention relates to transformer technology field, especially a kind of mutual inductance type power supply of built-in fuse.
Background technology
Existing dry-type transformer (as shown in Figure 1-Figure 3), its power supply winding 1 is arranged in mounting seat 2, power supply winding is drawn low compression bonded line and is connected to form power supply low-voltage wiring terminal 3 with terminal, power supply winding is drawn high-voltage connection and is connected to form transformer high-voltage binding post 4 with terminal, transformer high-voltage binding post access high-tension electricity, at power supply low-voltage wiring terminal, induce low tension, for low-voltage load, use.High-pressure side overcurrent protection and the short-circuit protection of transformer often need to be protected with fuse, and the combined electrical apparatus that so often need to use fuse and on-load switch to form at the high pressure inlet wire of transformer, realizes the protection to transformer.
At the common box type of some old engineered middle uses not with the ring main unit of expanded function; when it need to increase tranformer protection function; often need original old switch cubicle to remove; change the new switch cubicle with fuse defencive function; at this moment often cause huge waste, and increased workload, reduced operating efficiency.
Summary of the invention
The object of the present invention is to provide a kind of reasonable in design, easy to use, can reduce Financial cost, improve the mutual inductance type power supply that is adapted at not being with the built-in fuse using on the ring main unit of expanded function of construction reformation efficiency.
The object of the invention is to realize by following technological means:
A kind of mutual inductance type power supply of built-in fuse, comprise power supply winding, mounting seat and power supply low-voltage wiring terminal, power supply winding is arranged in mounting seat, low compression bonded line and terminal that power supply winding is drawn are connected to form power supply low-voltage wiring terminal, it is characterized in that: also comprise power supply high-voltage connection sleeve pipe, power supply high-voltage connection sleeve pipe is installed on power supply winding, an axial fuse installing hole is made in the axle center of this power supply high-voltage connection sleeve pipe, fuse is installed in this fuse installing hole, a metallic elastic sheet is installed in the inside of this fuse installing hole rear end, the rear end face of this metallic elastic sheet is connected with the high-voltage connection that power supply winding is drawn, the front end face of this metallic elastic sheet is connected with fuse, fuse installing hole front end inserts the cable joint of high-tension cable, the afterbody of cable joint is provided with compressing tablet, its installing hole by thread be connected in flakes, there is fixing threaded hole both sides at power supply high-voltage connection sleeve pipe, by bolt, be connected with fixing threaded hole in flakes, by regulating clamp nut that cable joint is connected with power supply high-voltage connection sleeve pipe.
And described power supply high-voltage connection sleeve pipe is two, it is arranged on respectively the two ends, left and right of power supply winding.
And described metallic elastic sheet is copper sheet.
And described fuse installing hole front end outer surface is made truncated cone.
Advantage of the present invention and good effect are:
1, this mutual inductance type power supply is installed fuse in power supply high-voltage connection sleeve pipe; an end that connects the cable joint of high-tension cable is received in the old switchgear that there is no fuse defencive function; the other end inserts and is connected with power supply high-voltage connection sleeve pipe, can realize high input voltage, low pressure output.Adopt after this structure, common box type can not continue to retain use with the ring main unit of expanded function, needn't be replaced with the new-type switch cubicle with fuse defencive function, has therefore significantly reduced construction cost, has reduced economic waste.
2, owing to adopting after this mutual inductance type power supply architecture, not only need not remove old-fashioned ring main unit, and power supply is simple and convenient with being connected of ring main unit, has therefore reduced operation easier, improved operating efficiency, accelerated construction schedule.
3, the present invention is a kind of reasonable in design, improves the mutual inductance type power supply of built-in fuse simple and practical, convenient to operation, adopt this mutual inductance type power supply can reduce economic expenditure, accelerate operating rate, install and be reliably particluarly suitable for old engineered middle use.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing dry-type transformer;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is front view of the present invention;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the rearview of Fig. 4;
Fig. 7 is the left view of Fig. 4;
Fig. 8 is that the A of Fig. 7 is to overlooking enlarged diagram;
Fig. 9 is front view of the present invention (installing cables joint etc.);
Figure 10 is the F portion enlarged diagram of Fig. 9;
Figure 11 is that the B-B of Fig. 9 is to cutaway view;
Figure 12 is the H portion enlarged diagram of Figure 11;
Figure 13 is that the J-J of Fig. 9 is to cutaway view;
Figure 14 is the schematic perspective view of Fig. 9.
Embodiment
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail; It should be noted that, the present embodiment is narrative, is not determinate, can not limit protection scope of the present invention with this.
As shown in Fig. 4-Figure 14, a kind of mutual inductance type power supply of built-in fuse, comprise variable power source winding 1, mounting seat 2 and power supply low-voltage wiring terminal 3, power supply winding is arranged in mounting seat, and low compression bonded line and terminal that power supply winding is drawn are connected to form power supply low-voltage wiring terminal.
Innovative point of the present invention is: also comprise power supply high-voltage connection sleeve pipe 5, power supply high-voltage connection sleeve pipe is installed on power supply winding, in the both sides of sleeve pipe, is had fixing threaded hole 10, in the present embodiment, power supply high-voltage connection sleeve pipe is two, and it is arranged on respectively the two ends, left and right of power supply winding.An axial fuse installing hole 7 is made in the axle center of this power supply high-voltage connection sleeve pipe, and fuse 15 is installed in this fuse installing hole, and a metallic elastic sheet 6 is installed in the inside of this fuse installing hole rear end, and this metallic elastic sheet is copper sheet.The high-voltage connection 8 that the rear end face of metallic elastic sheet is drawn with power supply winding is connected, and the front end face of this metallic elastic sheet is connected with fuse.Fuse installing hole front end outer surface is made truncated cone, this fuse installing hole front end inserts the cable joint 9 of high-tension cable, the afterbody of cable joint is provided with compressing tablet 13, its installing hole by thread 12 with 11 be connected in flakes, by bolt, be connected with the fixing threaded hole on power supply high-voltage connection sleeve pipe in flakes, by adjustment, regulate clamp nut 14, cable joint is connected reliably with power supply high-voltage connection sleeve pipe.The other end of this cable joint is received in the old switchgear that there is no fuse defencive function.
Operation principle of the present invention is:
Power supply winding is arranged in mounting seat; power supply winding is drawn low compression bonded line and is connected to form power supply low-voltage wiring terminal with terminal; power supply winding is drawn high-voltage connection and is connected with the metallic elastic sheet in fuse installing hole; now fuse is placed in fuse installing hole; then with the cable joint that connects high-tension cable; one end is received in the old switchgear that there is no fuse defencive function, and the other end inserts and is connected with power supply high-voltage connection sleeve pipe.At high-tension cable access high-tension electricity, high-tension electricity is passed into power supply high-voltage connection terminal through overcurrent fuse, produces low tension, for low-voltage load at power supply low-voltage wiring terminal like this.
Claims (4)
1. the mutual inductance type power supply of a built-in fuse, comprise power supply winding, mounting seat and power supply low-voltage wiring terminal, power supply winding is arranged in mounting seat, low compression bonded line and terminal that power supply winding is drawn are connected to form power supply low-voltage wiring terminal, it is characterized in that: also comprise power supply high-voltage connection sleeve pipe, power supply high-voltage connection sleeve pipe is installed on power supply winding, an axial fuse installing hole is made in the axle center of this power supply high-voltage connection sleeve pipe, fuse is installed in this fuse installing hole, a metallic elastic sheet is installed in the inside of this fuse installing hole rear end, the rear end face of this metallic elastic sheet is connected with the high-voltage connection that power supply winding is drawn, the front end face of this metallic elastic sheet is connected with fuse, fuse installing hole front end inserts the cable joint of high-tension cable, the afterbody of cable joint is provided with compressing tablet, its installing hole by thread be connected in flakes, there is fixing threaded hole both sides at power supply high-voltage connection sleeve pipe, by bolt, be connected with fixing threaded hole in flakes, by regulating clamp nut that cable joint is connected with power supply high-voltage connection sleeve pipe.
2. the mutual inductance type power supply of a kind of built-in fuse according to claim 1, is characterized in that: described power supply high-voltage connection sleeve pipe is two, and it is arranged on respectively the two ends, left and right of power supply winding.
3. the mutual inductance type power supply of a kind of built-in fuse according to claim 1, is characterized in that: described metallic elastic sheet is copper sheet.
4. the mutual inductance type power supply of a kind of built-in fuse according to claim 1, is characterized in that: described fuse installing hole front end outer surface is made truncated cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253843.2A CN104064335A (en) | 2014-06-10 | 2014-06-10 | Mutual inductance power source for built-in fusible cutout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253843.2A CN104064335A (en) | 2014-06-10 | 2014-06-10 | Mutual inductance power source for built-in fusible cutout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104064335A true CN104064335A (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410253843.2A Pending CN104064335A (en) | 2014-06-10 | 2014-06-10 | Mutual inductance power source for built-in fusible cutout |
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| Country | Link |
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| CN (1) | CN104064335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298204A (en) * | 2016-11-07 | 2017-01-04 | 湖南大北互互感器有限公司 | A kind of mains transformer of built-in limiting fuse |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0609850A2 (en) * | 1993-02-05 | 1994-08-10 | Kabushiki Kaisha Sanyo Denki Seisakusho | Transformer unit and coil case and coil bobbin for use therefor |
| CN2591738Y (en) * | 2002-12-13 | 2003-12-10 | 上海置信电气股份有限公司 | Whole-self-protection three phase dry type distributing transformer |
| CN2682697Y (en) * | 2003-12-23 | 2005-03-02 | 张路明 | Sulfur hexafluoride ring net switch cabinet |
| CN201975362U (en) * | 2011-04-26 | 2011-09-14 | 德国卡洛尔埃马克有限公司 | Novel high pressure fuse |
| CN202473563U (en) * | 2012-02-22 | 2012-10-03 | 沪光集团(安徽)电气有限公司 | Overcurrent self-protecting transformer |
-
2014
- 2014-06-10 CN CN201410253843.2A patent/CN104064335A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0609850A2 (en) * | 1993-02-05 | 1994-08-10 | Kabushiki Kaisha Sanyo Denki Seisakusho | Transformer unit and coil case and coil bobbin for use therefor |
| CN2591738Y (en) * | 2002-12-13 | 2003-12-10 | 上海置信电气股份有限公司 | Whole-self-protection three phase dry type distributing transformer |
| CN2682697Y (en) * | 2003-12-23 | 2005-03-02 | 张路明 | Sulfur hexafluoride ring net switch cabinet |
| CN201975362U (en) * | 2011-04-26 | 2011-09-14 | 德国卡洛尔埃马克有限公司 | Novel high pressure fuse |
| CN202473563U (en) * | 2012-02-22 | 2012-10-03 | 沪光集团(安徽)电气有限公司 | Overcurrent self-protecting transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298204A (en) * | 2016-11-07 | 2017-01-04 | 湖南大北互互感器有限公司 | A kind of mains transformer of built-in limiting fuse |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN SANYUAN ELECTRIC POWER EQUIPMENT MANUFACTU Effective date: 20141030 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: TIANJIN SANYUAN ELECTRIC POWER EQUIPMENT MANUFACTURING CO., LTD. Effective date: 20141030 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300409 BEICHEN, TIANJIN TO: 100031 XICHENG, BEIJING |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20141030 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd. Address before: 300409 Tianjin District of Beichen city science and Technology Park in North Road No. 8 Applicant before: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd. |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd. Address before: 100031 West Chang'an Avenue, Beijing, No. 86 Applicant before: State Grid Corporation of China Applicant before: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |