CN104376989A - Low-voltage wire sealing zero line terminal - Google Patents
Low-voltage wire sealing zero line terminal Download PDFInfo
- Publication number
- CN104376989A CN104376989A CN201410647306.6A CN201410647306A CN104376989A CN 104376989 A CN104376989 A CN 104376989A CN 201410647306 A CN201410647306 A CN 201410647306A CN 104376989 A CN104376989 A CN 104376989A
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- Prior art keywords
- zero
- line terminal
- zero line
- emission
- mutually
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- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a low-voltage wire sealing zero line terminal. The low-voltage wire sealing zero line terminal comprises phase terminals, zero line terminal bodies, copper strips and insulating plates. The phase terminals are arranged on the two overlapped and staggered zero line terminal bodies. The copper strips are arranged between the two zero line terminal bodies and located at the joints between the corresponding zero line terminal bodies and the phase terminals. The insulating plates are arranged between the two zero line terminal bodies and located between the two adjacent phase terminals. Through blocking of the insulating plates, the difference value between wire resistance between the adjacent phase terminals and wire resistance between the two phase terminals which are farthest from each other is smaller and smaller; accordingly, wire resistance unbalance of a transformer is eliminated, and balance of three-phase coil DC resistance of the transformer is guaranteed.
Description
Technical field
The present invention relates to during transformer is installed the low press seal line zero-emission connected.
Background technology
Three-phase transformer product is widely used in industrial and mining enterprises, textile machine, printing packaging, petrochemical industry, school, market, elevator, post and telecommunications, medical machinery, office equipment, testing equipment, industrial automation equipment, household electrical appliance, skyscraper, lathe, all occasions needing normal voltage to ensure such as the power transmission and distribution in tunnel and import equipment.The D.C. resistance unbalance factor of the coil of three-phase transformer is the important performance parameter of in transformer testing, and its size directly has influence on the voltage of Three-Phase Transformer coil, the balance of electric current.Meet national standard in order to ensure this performance parameter, as shown in Figure 1-2, generally make envelope line zero-emission into area larger copper bar or a copper bar in parallel again on original specification copper bar, to eliminate the unbalanced phenomenon of line resistance.Particularly some jumbo products, in order to ensure the balance of its D.C. resistance, the consumption of its envelope line zero-emission is very large, and this way not only wastes resource, and improves cost.
Summary of the invention
Goal of the invention: for the problems referred to above, the invention provides the zero-emission of a kind of low press seal line, is guaranteeing under the prerequisite that DCR of Transformer balances, and reduces the consumption of envelope line zero-emission.
Technical scheme: a kind of low press seal line zero-emission, comprises row, zero-emission, copper strips, insulation board mutually, and described row is mutually located in two interlaced superimposed zero-emissions; Described copper strips is located between two zero-emissions of arranging junction mutually; Described insulation board is located at adjacent row mutually between two middle zero-emissions.
Particularly, described row mutually can be provided with multiple according to the length of zero-emission, and the present invention is preferably three.
Particularly, the number of described copper strips is n-1 that arranges number mutually, and the present invention is preferably two.
Particularly, described insulation board is identical with copper strips number, and the present invention is preferably two.
Particularly, described insulation board is epoxy plate.
Particularly, described row and zero-emission are mutually bolted, and each row is mutually provided with four bolts.
Beneficial effect: compared with prior art, the present invention is by the obstruct of insulation board, make two of adjacent line resistance and lie farthest away mutually between row arrange mutually between the difference of line resistance more and more less, thus the unbalanced phenomenon of eliminating transformer line resistance, guarantee the balance of Three-Phase Transformer coil D.C. resistance.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing low press seal line zero-emission;
Fig. 2 is the vertical view of existing low press seal line zero-emission;
Fig. 3 is structural representation of the present invention;
Fig. 4 is vertical view of the present invention;
Fig. 5 is left view of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
As shown in 3-5, a kind of low press seal line zero-emission, comprise arrange 1 mutually, zero-emission 2, copper strips 3, insulation board 4, describedly arrange 1 mutually and have three, be respectively a phase, b phase, c phase, arranging 1 is mutually located in two interlaced superimposed zero-emissions 2, wherein a phase connects the zero-emission 2 of the part that staggers by bolt 5, the zero-emission 2 that part accounts for 1/4, b phase of each zero-emission 2, c phase connects lamination portion respectively by bolt 5 of staggering, lamination portion accounts for 3/4 of each zero-emission 2, and each row 1 is mutually connected with zero-emission 2 by four bolts 5; Described copper strips 3 has two, is located at respectively between two zero-emissions 2 of b phase, c connection; Described insulation board 4 is epoxy plate, has two, is located at a phase respectively with b phase centre, between b phase and two zero-emissions 2 of c phase middle.
The present invention, by the obstruct of insulation board 4, makes the difference of the line resistance between the line resistance between ab, bc and ac more and more less, thus the phenomenon of eliminating transformer ab, bc, ac top-stitching resistance unbalance, guarantee the balance of Three-Phase Transformer coil D.C. resistance.
Claims (6)
1. a low press seal line zero-emission, is characterized in that: comprise and arrange (1), zero-emission (2), copper strips (3) and insulation board (4) mutually, and described arrange mutually (1) is located on two interlaced superimposed zero-emissions (2); Described copper strips (3) is located between two zero-emissions (2) of arranging (1) junction mutually; Described insulation board (4) is located between adjacent two zero-emissions (2) of arranging mutually in the middle of (1).
2. one according to claim 1 low press seal line zero-emission, is characterized in that: described arrange mutually (1) has three.
3. one according to claim 1 low press seal line zero-emission, is characterized in that: described copper strips (3) has two.
4. one according to claim 1 low press seal line zero-emission, is characterized in that: described insulation board (4) has two.
5. one according to claim 1 low press seal line zero-emission, is characterized in that: described insulation board (4) is epoxy plate.
6. one according to claim 1 low press seal line zero-emission, is characterized in that: described arrange mutually (1) is connected by bolt (5) with zero-emission (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647306.6A CN104376989A (en) | 2014-11-14 | 2014-11-14 | Low-voltage wire sealing zero line terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647306.6A CN104376989A (en) | 2014-11-14 | 2014-11-14 | Low-voltage wire sealing zero line terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104376989A true CN104376989A (en) | 2015-02-25 |
Family
ID=52555844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647306.6A Pending CN104376989A (en) | 2014-11-14 | 2014-11-14 | Low-voltage wire sealing zero line terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104376989A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371485A (en) * | 1993-04-27 | 1994-12-06 | Abb Power T&D Company, Inc. | Two core phase angle regulating transformer |
| CN202930182U (en) * | 2012-09-03 | 2013-05-08 | 中电电气(江苏)股份有限公司 | Zero line flat cable connection structure of balancing transformer winding wire resistor |
| CN203444936U (en) * | 2013-09-05 | 2014-02-19 | 南京大全变压器有限公司 | Low-voltage winding wire resistance balance regulating structure for distribution transformer |
| CN204303518U (en) * | 2014-11-14 | 2015-04-29 | 中电电气(江苏)股份有限公司 | A kind of low press seal line zero-emission |
-
2014
- 2014-11-14 CN CN201410647306.6A patent/CN104376989A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371485A (en) * | 1993-04-27 | 1994-12-06 | Abb Power T&D Company, Inc. | Two core phase angle regulating transformer |
| CN202930182U (en) * | 2012-09-03 | 2013-05-08 | 中电电气(江苏)股份有限公司 | Zero line flat cable connection structure of balancing transformer winding wire resistor |
| CN203444936U (en) * | 2013-09-05 | 2014-02-19 | 南京大全变压器有限公司 | Low-voltage winding wire resistance balance regulating structure for distribution transformer |
| CN204303518U (en) * | 2014-11-14 | 2015-04-29 | 中电电气(江苏)股份有限公司 | A kind of low press seal line zero-emission |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |
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| RJ01 | Rejection of invention patent application after publication |