CN105353180A - Strong current generator with multiple uniformly distributed conductors - Google Patents
Strong current generator with multiple uniformly distributed conductors Download PDFInfo
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- CN105353180A CN105353180A CN201510995788.9A CN201510995788A CN105353180A CN 105353180 A CN105353180 A CN 105353180A CN 201510995788 A CN201510995788 A CN 201510995788A CN 105353180 A CN105353180 A CN 105353180A
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- strong current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- General Physics & Mathematics (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The invention discloses a strong current generator with multiple uniformly distributed conductors. The strong current generator is characterized by comprising an iron core, primary windings, secondary windings and connecting copper plates, wherein the primary windings uniformly wind around the iron core; a polyester film is arranged between every two layers of the primary windings; the secondary windings uniformly wind around the outermost layer of the primary windings; taps of the primary windings and the secondary windings are led out through the connecting copper plates. The strong current generator has the benefits as follows: the device structure is compact, the magnetic circuit is short, the leakage reactance is small, the efficiency is high, the skin effect is reduced, the wiring is simple, labor is reduced, and the field test time is greatly saved.
Description
Technical field
The present invention relates to one and be uniformly distributed multiply conductor type strong current generator, belong to extra-high voltage current transformer technical field of measurement and test.
Background technology
Large-current electric current transformer is in 1000kV AC extra high voltage transformer station main equipment indispensable one.It carries the metering of AC extra high voltage system power, electric power detection, provides the vital role of signal for relay protection of power system.Its accuracy directly has influence on the fair and just of the trade settlement of power supplying and generating enterprises, and state compulsion requires to require to verify its site error according to JJG1021-2007 " electric power mutual-inductor " vertification regulation.The current transformer of China 1000kV AC extra high voltage engineering is mainly arranged on transformer and reactor sleeve pipe place and isolating switch, disconnector place, and be casing current transformer, be encapsulated in GIS tank interior, maximum rated current is than being 6000:1.When site error verification being carried out to current transformer according to the requirement of national verification code JJG1021-2007 " electric power mutual-inductor ", need to carry out error checking on 1% to 120% five error measure point of rated current, the maximum current applied is needed to be 7200A, and extra-high voltage electric power transformer error verification loop is long, impedance is large, up-flow difficulty is large, and be difficult to up-flow to 7200A, test current can not reach ratings will have influence on test accuracy.
Summary of the invention
For solving the deficiencies in the prior art, one is the object of the present invention is to provide to be uniformly distributed multiply conductor type strong current generator, simple and reasonable, be applicable to multiple occasion, meet the requirement of big current.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
One is uniformly distributed multiply conductor type strong current generator, it is characterized in that, comprises iron core, winding, Secondary Winding and a connection bronze medal; Described iron core adopts loop configuration; A described winding is evenly around on iron core; The interlayer of a described winding is provided with mylar; Described Secondary Winding is evenly around on the outermost layer of a winding; A described winding, Secondary Winding all adopt tight coiling, the basic tight of core window after coiling completes; A described winding and Secondary Winding are provided with several taps; Described tap is drawn by connection bronze medal; Secondary voltage corresponding between described tap is unequal.
Aforesaid one is uniformly distributed multiply conductor type strong current generator, it is characterized in that, a described winding adopts the coiling of multiply enamel covered wire, and is provided with three taps, is respectively the first tap, the second tap and the 3rd tap; The secondary voltage that the described first tap secondary voltage corresponding with the 3rd tap is corresponding with the first tap and the second tap is not identical.
Aforesaid one is uniformly distributed multiply conductor type strong current generator, it is characterized in that, described first tap and the corresponding secondary voltage of the 3rd tap are 17V, and the first tap and the corresponding secondary voltage of the second tap are 20.4V.
Aforesaid one is uniformly distributed multiply conductor type strong current generator, it is characterized in that, described Secondary Winding adopts the fine wire-wound system of fourth; The fine line of described fourth is made up of multiply soft copper silk.
Aforesaid one is uniformly distributed multiply conductor type strong current generator, it is characterized in that, described Secondary Winding adopts 12 bursts of fine line uniform winding of fourth on iron core, per share punching 2 circle.
Aforesaid one is uniformly distributed multiply conductor type strong current generator, it is characterized in that, the two ends of the fine line of odd number stock fourth each personal connection bronze medal extraction respectively in described Secondary Winding, and each personal one of the two ends difference of the fine line of even numbers stock fourth connects bronze medal extraction.
Aforesaid one is uniformly distributed multiply conductor type strong current generator, it is characterized in that, the fine line of described odd number stock fourth and the fine line of even numbers stock fourth symmetrical.
The beneficial effect that the present invention reaches: this apparatus structure is compact, magnetic circuit is short, leakage reactance is little, efficiency is high, reduce skin effect, wiring is simple, decreases manpower, has greatly saved the site test time.
Accompanying drawing explanation
Fig. 1 is strong current generator test connection figure;
In Fig. 2, (a)-(d) is the johning knot composition being uniformly distributed multiply conductor type strong current generator respectively.
Reference numeral implication in figure:
1-first tap and bronze medal thereof, 2-second tap and bronze medal thereof, 3-the 3rd tap and bronze medal thereof, L1, L2, L3 ..., the fine line of L12-fourth, A, B, C, D-bronze medal.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
In this programme, comprise annular core, a winding, Secondary Winding, connect bronze medal.Iron core adopts loop configuration, and once, after Secondary Winding coiling completes, the basic tight of core window, reduces leakage reactance, decrease internal loss, ensure that magnetic circuit is the shortest, most effective, decreases skin effect simultaneously.
One time winding is evenly around on annular core, and interlayer adopts mylar insulation, an even coiling Secondary Winding of winding outermost layer, and one time winding is all drawn with being connected bronze medal with Secondary Winding tap.This strong current generator realizes 4 kinds of output types by different connected modes, maximum can up-flow to 7200A.
During concrete enforcement, one time winding adopts the coiling of multiply enamel covered wire, and one time winding has 3 taps, has two gears to select: the first tap and the corresponding secondary voltage of the 3rd tap are 17V, and the first tap and the corresponding secondary voltage of the second tap are 20.4V.
Secondary Winding adopts 12 bursts of fine line uniform winding of fourth on iron core, and the fine line of fourth is made up of multiply soft copper silk, reduces skin effect, and thermal diffusivity is good, and softness is easily wound around.Per share fourth fine line punching 2 circle, 12 strands and together maximum can up-flow to 7200A, even structure and magnetic coupling degree is high, well reduces skin effect.
In Secondary Winding, odd number stock wire L1, L3, L5, L7, L9, L11 bronze medal A, C draw, even numbers stock wire L2, L4, L6, L8, L10, L12 bronze medal B, D draw, the wire that bronze medal A, C are connected with bronze medal B, D is symmetric, and effectively reduces iron core local saturated phenomenon.
Above connected mode forms two groups and independently exports winding, can and can go here and there, make output obtain more composite type like this: as being connected with bronze medal B by bronze medal A, bronze medal C is connected with bronze medal D, then strong current generator can up-flow to 7200A; As connect by bronze medal B and bronze medal C head and the tail, bronze medal A and bronze medal D is as output in use, can up-flow to 3600A.
One time stranded conductor focuses on one piece of bronze medal by winding input end, Secondary Winding input and output side, reduces contact resistance, thus achieves effective transmission of energy.
During concrete wiring: as in Fig. 2 (a), if a winding connects the first tap and the 3rd tap, Secondary Winding is in parallel, then rated output voltage is 17V, and rated current is 7200A.
As in Fig. 2 (b), if a winding connects the first tap and the 3rd tap, secondary windings in series, then rated output voltage is 34V, and rated current is 3600A.
As in Fig. 2 (c), if a winding connects the first tap and the second tap, Secondary Winding is in parallel, then rated output voltage is 20.4V, and rated current is 7200A.
As in Fig. 2 (d), if a winding connects the first tap and the second tap, secondary windings in series, then rated output voltage is 40.8V, and rated current is 3600A.
The concrete mode of connection can be selected by site specific.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (7)
1. be uniformly distributed a multiply conductor type strong current generator, it is characterized in that, comprise iron core, winding, Secondary Winding and a connection bronze medal; Described iron core adopts loop configuration; A described winding is evenly around on iron core; The interlayer of a described winding is provided with mylar; Described Secondary Winding is evenly around on the outermost layer of a winding; A described winding, Secondary Winding all adopt tight coiling, the basic tight of core window after coiling completes; A described winding is provided with several taps; Described tap is drawn by connection bronze medal; Secondary voltage corresponding between described tap is unequal.
2. one according to claim 1 is uniformly distributed multiply conductor type strong current generator, it is characterized in that, a described winding adopts the coiling of multiply enamel covered wire, and is provided with three taps, is respectively the first tap, the second tap and the 3rd tap; The secondary voltage that the described first tap secondary voltage corresponding with the 3rd tap is corresponding with the first tap and the second tap is not identical.
3. one according to claim 2 is uniformly distributed multiply conductor type strong current generator, it is characterized in that, described first tap and the corresponding secondary voltage of the 3rd tap are 17V, and the first tap and the corresponding secondary voltage of the second tap are 20.4V.
4. one according to claim 1 is uniformly distributed multiply conductor type strong current generator, it is characterized in that, described Secondary Winding adopts the fine wire-wound system of fourth; The fine line of described fourth is made up of multiply soft copper silk.
5. one according to claim 4 is uniformly distributed multiply conductor type strong current generator, it is characterized in that, described Secondary Winding adopts 12 bursts of fine line uniform winding of fourth on iron core, per share punching 2 circle.
6. one according to claim 5 is uniformly distributed multiply conductor type strong current generator, it is characterized in that, the two ends of the fine line of odd number stock fourth each personal connection bronze medal extraction respectively in described Secondary Winding, each personal one of the two ends difference of the fine line of even numbers stock fourth connects bronze medal extraction.
7. one according to claim 6 is uniformly distributed multiply conductor type strong current generator, it is characterized in that, the fine line of described odd number stock fourth and the fine line of even numbers stock fourth symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995788.9A CN105353180A (en) | 2015-12-28 | 2015-12-28 | Strong current generator with multiple uniformly distributed conductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995788.9A CN105353180A (en) | 2015-12-28 | 2015-12-28 | Strong current generator with multiple uniformly distributed conductors |
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| Publication Number | Publication Date |
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| CN105353180A true CN105353180A (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510995788.9A Pending CN105353180A (en) | 2015-12-28 | 2015-12-28 | Strong current generator with multiple uniformly distributed conductors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869831A (en) * | 2016-05-26 | 2016-08-17 | 国家电网公司 | 36000A strong current generator and detecting method thereof |
| CN111029133A (en) * | 2019-12-30 | 2020-04-17 | 肥东凯利电子科技有限公司 | Winding method of high-frequency high-power low-leakage-inductance transformer |
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| JPH10106871A (en) * | 1996-09-27 | 1998-04-24 | Toko Denki Kk | Current transformer |
| CN201270194Y (en) * | 2008-08-27 | 2009-07-08 | 大连北方互感器集团有限公司 | Multiple winding casing tube at lead-out terminal of electricity generator, shielding type current mutual inductor |
| JP2009295839A (en) * | 2008-06-06 | 2009-12-17 | Chugoku Electric Power Co Inc:The | Cross through current transformer, terminal block, and protective relay device |
| CN202256414U (en) * | 2011-07-29 | 2012-05-30 | 牡丹江电业局 | Portable-type multifunctional test power supply device |
| CN103050265A (en) * | 2012-12-31 | 2013-04-17 | 常熟开关制造有限公司(原常熟开关厂） | Residual current transformer |
| CN203644535U (en) * | 2013-11-28 | 2014-06-11 | 哈尔滨电工仪表研究所 | High-current transformer for high-capacity experiment |
| CN104701003A (en) * | 2015-03-24 | 2015-06-10 | 山东钢铁股份有限公司 | Electric connection loop of current transformer |
| CN205263146U (en) * | 2015-12-28 | 2016-05-25 | 武汉磐电科技有限公司 | Big current generator of evenly distributed stranded conductor formula |
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2015
- 2015-12-28 CN CN201510995788.9A patent/CN105353180A/en active Pending
Patent Citations (8)
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| JPH10106871A (en) * | 1996-09-27 | 1998-04-24 | Toko Denki Kk | Current transformer |
| JP2009295839A (en) * | 2008-06-06 | 2009-12-17 | Chugoku Electric Power Co Inc:The | Cross through current transformer, terminal block, and protective relay device |
| CN201270194Y (en) * | 2008-08-27 | 2009-07-08 | 大连北方互感器集团有限公司 | Multiple winding casing tube at lead-out terminal of electricity generator, shielding type current mutual inductor |
| CN202256414U (en) * | 2011-07-29 | 2012-05-30 | 牡丹江电业局 | Portable-type multifunctional test power supply device |
| CN103050265A (en) * | 2012-12-31 | 2013-04-17 | 常熟开关制造有限公司(原常熟开关厂） | Residual current transformer |
| CN203644535U (en) * | 2013-11-28 | 2014-06-11 | 哈尔滨电工仪表研究所 | High-current transformer for high-capacity experiment |
| CN104701003A (en) * | 2015-03-24 | 2015-06-10 | 山东钢铁股份有限公司 | Electric connection loop of current transformer |
| CN205263146U (en) * | 2015-12-28 | 2016-05-25 | 武汉磐电科技有限公司 | Big current generator of evenly distributed stranded conductor formula |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869831A (en) * | 2016-05-26 | 2016-08-17 | 国家电网公司 | 36000A strong current generator and detecting method thereof |
| CN111029133A (en) * | 2019-12-30 | 2020-04-17 | 肥东凯利电子科技有限公司 | Winding method of high-frequency high-power low-leakage-inductance transformer |
| CN111029133B (en) * | 2019-12-30 | 2021-12-14 | 肥东凯利电子科技有限公司 | Winding method of high-frequency high-power low-leakage-inductance transformer |
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| CB02 | Change of applicant information |
Address after: 430058, No. 4 warehouse, No. 11, industrial district, Zhuankou District, Wuhan economic and Technological Development Zone, Hubei, Wuhan Applicant after: Wuhan Pandian Technology Co., Ltd. Address before: 430079, No. 1, No. 3, South Science and Technology Industrial Park, East Lake Development Zone, Wuhan, Hubei Applicant before: Wuhan Pandian Technology Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |