CN109524953A - A kind of arc suppression coil - Google Patents
A kind of arc suppression coil Download PDFInfo
- Publication number
- CN109524953A CN109524953A CN201811394232.4A CN201811394232A CN109524953A CN 109524953 A CN109524953 A CN 109524953A CN 201811394232 A CN201811394232 A CN 201811394232A CN 109524953 A CN109524953 A CN 109524953A
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- CN
- China
- Prior art keywords
- coil
- wire
- head end
- sectional area
- arc suppression
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
- H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention provides a kind of arc suppression coil, belongs to neutral ground protection technique field.The arc suppression coil, the iron core including annular, coiling first coil and the second coil on iron core, the head end of first coil is for connecting neutral point, and the head end of the second coil is for being grounded；In first coil, several taps are provided on the second coil；First coil, the second coil are divided into several segments by the tap respectively；At least two sections in first coil, the sectional area of wire close to coil head end is greater than the sectional area of wire far from coil head end；At least two sections in second coil, the sectional area of wire close to coil head end is greater than the sectional area of wire far from coil head end.Arc suppression coil of the invention, coiling is carried out using the different conducting wire of sectional area at least two sections in each coil, sectional area of wire wherein far from coil head end is smaller, due to reducing wire specification, the wire rod consumption of arc suppression coil can be reduced, reduce arc suppression coil size, keep arc suppression coil structure more reasonable.
Description
Technical field
The present invention relates to a kind of arc suppression coils, belong to neutral ground protection technique field.
Background technique
At present in electric system, the arc suppression coil of compensating electric capacity electric current mostly uses greatly turn-adjusting, i.e., by changing coil turn
Several methods adjusts the size of compensating electric capacity electric current.Arc suppression coil the number of turns when rated current is minimum, usual rated current
When the number of turns be defined as specified the number of turns, in next gear, capacitance current reduce and the number of turns increases, usually in specified the number of turns
On the basis of further around make this grade the number of turns, and so on, until around last step.
Currently, domestic arc suppression coil integrally uses identical wire specification coiling, i.e., after specified the number of turns, also use same line
Material coiling, until coil winding terminates.Since each gear is all made of the wire rod coiling of same size, so that line used in arc suppression coil
The raw materials consumptions such as material and resin are larger, virtually also result in that arc suppression coil size and weight are larger, structure is not flexible.
Summary of the invention
The object of the present invention is to provide a kind of arc suppression coil, to solve, existing arc suppression coil volume is big, wire rod consumption
Big problem.
To achieve the above object, the present invention provides a kind of arc suppression coil, the iron core including annular, coiling first on iron core
Coil and the second coil, the head end of first coil is for connecting neutral point, and the head end of the second coil is for being grounded；First coil
Several taps are provided on upper, the second coil；First coil, the second coil are divided into several by the tap respectively
Section；At least two sections in first coil, the sectional area of wire close to coil head end is greater than the sectional area of wire far from coil head end；
At least two sections in second coil, the sectional area of wire close to coil head end is greater than the sectional area of wire far from coil head end.
The beneficial effects of the present invention are: at least two sections in each coil, being adopted under the premise of guaranteeing arc suppression coil performance
Coiling is carried out with the different conducting wire of sectional area, wherein the sectional area of wire far from coil head end is smaller, thus obtained arc blowout wire
Circle, compared with the arc suppression coil that the whole conducting wire coiling using same size obtains in the prior art, due to reducing wire rod rule
Lattice can reduce the wire rod consumption of arc suppression coil, meanwhile, it is capable to reduce arc suppression coil size, make arc suppression coil structure more adduction
Reason.
As a kind of improvement to above-mentioned arc suppression coil, from coil head end to coil tail end, led for every section in first coil
Cross-sectional area is gradually successively decreased；From coil head end to coil tail end, every section of sectional area of wire gradually successively decreases in the second coil.
Under the premise of guaranteeing arc suppression coil performance, different sections in each coil are all made of the different conducting wire of sectional area
Coiling is carried out, wherein every section of sectional area of wire gradually successively decreases, due to reducing every section of line from coil head end to coil tail end
Material specification, so that the wire rod consumption of arc suppression coil is further reduced, meanwhile, arc suppression coil size has also been further reduced, has been made
Arc suppression coil structure is more reasonable.
Gradually successively decrease in order to which sectional area of wire is better achieved, is improved as the another kind to above-mentioned arc suppression coil, from line
Head end is enclosed to coil tail end, every section of sectional area of wire is successively in the first coil are as follows: From coil head end to coil tail end, in second coil, every section of sectional area of wire is successively are as follows:Wherein, N indicates the gear of arc suppression coil, and N is even number；INIndicate arc suppression coil
Gear be N when gear electric current, as gear increases, gear electric current at etc. differentials successively decrease；M indicates that arc suppression coil allows to pass through
Maximum current density.
Detailed description of the invention
Fig. 1 is the terminal schematic diagram of arc suppression coil of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
The present invention will be described in further detail for example.
In conjunction with Fig. 1, arc suppression coil of the invention, the iron core (such as square) including annular, coiling A column coil on iron core
(i.e. first coil) and X column coil (i.e. the second coil), the terminal A (i.e. the head end of first coil) of A column coil is in connection
Property point, the terminal X (i.e. the head end of the second coil) of X column coil is for being grounded；Each tap terminals being arranged on A column coil (are divided
Connector) A1、A3、…、AN+1A column coil is divided into several segments, each tap terminals X being arranged on X column coil2、X4、…、XNBy X column
Coil is divided into several segments, and N is even number；Each tap terminals A1、A3、…、AN+1And X2、X4、…、XNDifferent connection types, composition disappears
The different stalls of arc coil, corresponding relationship are as follows:
Gear number: 1,2 ..., i ..., N, it is N grades total；
The terminal connection type of respective notch: (A1-X2)、(X2-A3)、…、(Ai-Xi+1)、…、(XN-AN+1)；
The gear electric current of respective notch: I1、I2、…、Ii、…、IN, in gear 1, gear electric current is maximum, as gear increases
Greatly, gear electric current at etc. differentials successively decrease；
Conducting wire the number of turns of respective notch: W1、W2、…、Wi、…、WN。
Such as: tap terminals A1And X2Connection, forms the gear 1 of arc suppression coil；The corresponding conducting wire the number of turns W of gear 11, it is equal to
Terminal A, A1Between conducting wire the number of turns and terminal X, X2Between the sum of conducting wire the number of turns；Tap terminals X2And A3Connection forms extinguishing arc
The gear 2 of coil；The corresponding conducting wire the number of turns W of gear 22, it is equal to tap terminals A1、A3Between conducting wire the number of turns it is corresponding with gear 1
Conducting wire the number of turns W1The sum of.
A column coil and X column coil in arc suppression coil of the invention, from coil head end to coil tail end, every section of conducting wire is cut
Area gradually successively decreases.Specific implementation is as follows:
Firstly, calculating the conducting wire minimum sectional area that each gear of arc suppression coil allows: M
For arc suppression coil allow by maximum current density, it will therefore be readily appreciated that the conducting wire minimum sectional area that each gear allows gradually successively decreases；
Then, the increase with gear is calculated, A column coil or X column coil need newly-increased conducting wire the number of turns: W1、(W2-
W1)、…、(Wi-Wi-1)、…、(WN-WN-1)；
Finally, newly-increased conducting wire the number of turns is needed for each gear, the conducting wire for the minimum sectional area for selecting the gear to allow
Carry out coiling.
Specifically, in gear 1, tap terminals A1And X2Connection increases terminal A, A newly1Between and terminal X, X2Between lead
The total W of number of wire turns1Circle, then at terminal A and terminal X, choosing sectional area of wire isThe corresponding the number of turns of conducting wire coiling；
In gear 2, tap terminals X2And A3Connection increases tap terminals A newly1、A3Between conducting wire (W2-W1) circle, then exist
Tap terminals A1Place, hyperphoric sectional area of wire areThe corresponding the number of turns of conducting wire coiling；
In gear 3, tap terminals A3And X4Connection increases tap terminals X newly2、X4Between conducting wire (W3-W2) circle, then exist
Tap terminals X2Place, hyperphoric sectional area of wire areThe corresponding the number of turns of conducting wire coiling；
And so on, (i is odd number), tap terminals A in gear iiAnd Xi+1Connection increases tap terminals X newlyi-1、Xi+1It
Between conducting wire (Wi-Wi-1) circle, then in tap terminals Xi-1Place, hyperphoric sectional area of wire areThe corresponding the number of turns of conducting wire coiling；
(N is even number), tap terminals X in gear NNAnd AN+1Connection increases tap terminals A newlyN-1、AN+1Between conducting wire
(WN-WN-1) circle, then in tap terminals AN-1Place, hyperphoric sectional area of wire areThe corresponding the number of turns of conducting wire coiling.
In conclusion when conducting wire coiling is at each tap terminals, requiring hyperphoric different cross-sectional in A column coil
Conducting wire, and from coil head end to coil tail end, wire cross-section area gradually successively decreases；In X column coil, conducting wire coiling is to each
When at tap terminals, require the conducting wire of hyperphoric different cross-sectional, and from coil head end to coil tail end, wire cross-section area by
Gradually successively decrease.
The present embodiment, according to the gear number of setting, gear electric current and arc suppression coil allow by maximum current density, essence
The conducting wire minimum sectional area that each gear of arc suppression coil allows really is calculated, newly-increased conducting wire the number of turns is then needed for each gear,
The conducting wire for the minimum sectional area for selecting the gear to allow carries out coiling, thus obtained arc suppression coil, due to reducing every section
Wire specification, so as to effectively reduce the wire rod consumption of arc suppression coil, meanwhile, arc suppression coil size also can be effectively reduced,
Keep arc suppression coil structure more reasonable.
As other embodiments, the different sections of A column coil and X column coil are realized, from coil head end to coil tail end, often
It, can also be without accurately calculating, as long as suitably reducing sectional area of wire, example when the sectional area of wire of section gradually successively decreases
Such as: in A column coil, gradually successively decrease 10% (hereinafter referred to as the first preset value) per adjacent two sections of sectional area of wire, X column coil
In, gradually successively decrease 10% (hereinafter referred to as the second preset value) per adjacent two sections of sectional area of wire, wherein the first preset value and the
Two preset values can also be unequal.
As other embodiments, at least two sections can also be selected in A column coil, cut the conducting wire close to coil head end
Area is greater than the sectional area of wire far from coil head end；At least two sections are selected in X column coil, make the conducting wire close to coil head end
Sectional area is greater than the sectional area of wire far from coil head end.
As other embodiments, the terminal connection type of each gear of arc suppression coil, can also according to actual needs into
Row adjustment.
Claims (3)
1. a kind of arc suppression coil, which is characterized in that the iron core including annular, coiling first coil and the second coil on iron core, the
The head end of one coil is for connecting neutral point, and the head end of the second coil is for being grounded；It is respectively provided in first coil, on the second coil
There are several taps；First coil, the second coil are divided into several segments by the tap respectively；At least two in first coil
Section, the sectional area of wire close to coil head end are greater than the sectional area of wire far from coil head end；At least two sections in second coil,
Sectional area of wire close to coil head end is greater than the sectional area of wire far from coil head end.
2. arc suppression coil according to claim 1, which is characterized in that from coil head end to coil tail end, in first coil
Every section of sectional area of wire gradually successively decreases；From coil head end to coil tail end, in the second coil, every section of sectional area of wire is gradually
Successively decrease.
3. arc suppression coil according to claim 2, which is characterized in that from coil head end to coil tail end, the First Line
Every section of sectional area of wire is successively in circle are as follows:From coil head end to coil tail end,
Every section of sectional area of wire is successively in second coil are as follows: Wherein, N expression disappears
The gear of arc coil, N are even number；INIndicate gear electric current of the arc suppression coil when gear is N, as gear increases, gear electricity
It the differentials such as flows into successively decrease；M indicate arc suppression coil allow by maximum current density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394232.4A CN109524953A (en) | 2018-11-21 | 2018-11-21 | A kind of arc suppression coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394232.4A CN109524953A (en) | 2018-11-21 | 2018-11-21 | A kind of arc suppression coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109524953A true CN109524953A (en) | 2019-03-26 |
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ID=65778759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394232.4A Pending CN109524953A (en) | 2018-11-21 | 2018-11-21 | A kind of arc suppression coil |
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| Country | Link |
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| CN (1) | CN109524953A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2545740Y (en) * | 2002-06-05 | 2003-04-16 | 北京国电四维电力技术有限公司 | Turn-adjusting arc-extinguishing winding with trimming function |
| JP3618079B2 (en) * | 2000-07-11 | 2005-02-09 | 株式会社モステック | Multi-line trapezoidal coil, and method and apparatus for manufacturing the coil |
| CN207637603U (en) * | 2017-09-26 | 2018-07-20 | 清远电力规划设计院有限公司 | A kind of automatic capacity transfer type distribution transformer |
-
2018
- 2018-11-21 CN CN201811394232.4A patent/CN109524953A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3618079B2 (en) * | 2000-07-11 | 2005-02-09 | 株式会社モステック | Multi-line trapezoidal coil, and method and apparatus for manufacturing the coil |
| CN2545740Y (en) * | 2002-06-05 | 2003-04-16 | 北京国电四维电力技术有限公司 | Turn-adjusting arc-extinguishing winding with trimming function |
| CN207637603U (en) * | 2017-09-26 | 2018-07-20 | 清远电力规划设计院有限公司 | A kind of automatic capacity transfer type distribution transformer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |
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| RJ01 | Rejection of invention patent application after publication |