CN108831711A - A kind of reactor and preparation method thereof with inhibition overvoltage - Google Patents
A kind of reactor and preparation method thereof with inhibition overvoltage Download PDFInfo
- Publication number
- CN108831711A CN108831711A CN201810655138.3A CN201810655138A CN108831711A CN 108831711 A CN108831711 A CN 108831711A CN 201810655138 A CN201810655138 A CN 201810655138A CN 108831711 A CN108831711 A CN 108831711A
- Authority
- CN
- China
- Prior art keywords
- coil
- reactor
- portable protective
- protective gaps
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/343—Preventing or reducing surge voltages; oscillations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
Abstract
The present invention relates to CVT compensation reactor technical fields; it specifically discloses a kind of with the reactor and preparation method thereof for inhibiting overvoltage; reactor includes lead loop; lead loop includes first coil and the second coil; first coil and the second coil are connected in series; second coil both ends are parallel with portable protective gaps, and when the second coil voltage reaches the breakdown voltage of portable protective gaps, portable protective gaps puncture to reduce the voltage of reactor；It is described the production method is as follows：Insulation sleeve fastening is set on the outside of iron core；In insulation sleeve outsourcing high-tension cable paper；Coiling first coil；The second coil of coiling；By portable protective gaps and the second coils from parallel connection of coils.Reactor of the present invention utilizes electromagnetic induction principle; portable protective gaps are added on original reactor; when reactor bears larger voltage; carry out discharge prevention; reactor voltage is reduced, timely protection reactor is played the role of, prevents from burning damage reactor; and portable protective gaps are arranged in parallel, and installation and replacement are more convenient.
Description
Technical field
The present invention relates to capacitance type potential transformer CVT compensation reactor technical field, it is specifically a kind of have inhibited
Reactor of voltage and preparation method thereof.
Background technique
With the development of society, the expansion of electrical network capacity, so that the rated value of system short circuit capacity increases rapidly, in electric power
When short circuit occurs for system, the very big short circuit current of numerical value can be generated, it is difficult to the dynamic stability of holding capacitor formula voltage transformer CVT
And thermostabilization protects power equipment for the short circuit current of limiting capacitance formula voltage transformer CVT, it is necessary to install reactor, electricity
Anti- device can reduce short circuit current and remain unchanged the voltage of transcient short circuit time system.Reactor is a big inductance coil,
According to electromagnetic induction principle, faradic magnetic field always hinders the variation of original magnetic flux, if original magnetic flux is reduced, induced electricity
The magnetic field of stream is consistent with original magnetic direction, if original magnetic flux increases, faradic magnetic field and original magnetic field side
To opposite.According to this principle, if short trouble occurs suddenly, electric current increases suddenly, in this big inductance coil,
Generate the reverse potential E of an obstruction flux changeInstead, in this reverse potential EInsteadUnder the action of, one must be generated reversely
Electric current, reach the variation that increases suddenly of limitation electric current, play the role of limiting short-circuit current, to maintain busbar voltage water
It is flat.
Reactor long-term running time at rated loads, is exactly the service life of reactor.Reactor for a long time compared with
Under the action of high temperature, electric and magnetic fields, the mechanical property of original material will weaken, so as to cause reactor damage, and
The replacement for carrying out reactor is also more time-consuming.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention provides a kind of with the reactor for inhibiting overvoltage and its production side
Method increases portable protective gaps on reactor, and when reactor bears larger voltage, portable protective gaps voltage is also increased, into
Row discharge prevention reduces reactor both end voltage, to play the role of protection to reactor.
In order to solve the technical problem in background technique, the present invention provides it is a kind of with inhibit overvoltage reactor,
Including lead loop, the lead loop includes first coil and the second coil, and the first coil and the series connection of the second coil connect
It connects, second coil both ends have been arranged in parallel portable protective gaps, between the voltage at second coil both ends reaches the protection
When the breakdown voltage of gap, the portable protective gaps puncture to reduce the both end voltage of the reactor, when the portable protective gaps puncture
Maximum current-carrying value by the current value of the second coil less than the second coil.
Further, the wire diameter of second coil is greater than the wire diameter of first coil, second coil
The number of turns is less than the number of turns of first coil.
It further, further include iron core, the iron core passes through the center of the first coil and the second coil, the iron core
Outside is equipped with insulating cylinder.
It further, further include protective resistance, the protective resistance is connected with the portable protective gaps, and the protective resistance
The both ends of second coil are connected in parallel on portable protective gaps.
A kind of production method with the reactor for inhibiting overvoltage, steps are as follows：
Insulation sleeve fastening is set on the outside of iron core；
High-tension cable paper is coated in insulation sleeve outer wall；
The first conducting wire, which is wound, in the outside of the high-tension cable paper forms first coil；
The second conducting wire is wound on the outside of the first coil and forms the second coil, and second coil is connected with first coil
Connection；
Two conducting wires are drawn respectively at the both ends of second coil, are arranged in parallel portable protective gaps on two conducting wires.
Further, the portable protective gaps are discharge tube.
Further, the coil both ends of the reactor are arranged with fiberglass pipe respectively.
Further, insulating paper is equipped with outside the first coil and the second coil.
Further, the winding method of the first coil and the second coil is layering coiling, is arranged between layers
There is high-tension cable paper.
Further, protective resistance is connected in series in the parallel branch with portable protective gaps.
Beneficial effects of the present invention：Protection reactor of the present invention utilizes electromagnetic induction principle, adds on original reactor
Portable protective gaps, when reactor bears larger voltage, portable protective gaps voltage is also increased, and is carried out discharge prevention, is reduced electricity
Anti- device both end voltage, plays the role of timely protection reactor, prevents from burning damage reactor, and portable protective gaps parallel connection is set
It sets, installation and replacement are more convenient.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the flow chart of production method of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is disclosed in one embodiment of the present of invention a kind of with the reactor for inhibiting overvoltage, including lead loop, institute
Stating lead loop includes first coil and the second coil, and the first coil and the second coil are connected in series, second coil
Wire diameter be greater than the wire diameter of first coil, the number of turns of second coil is less than the number of turns of first coil, described the
Two coil both ends have been arranged in parallel portable protective gaps, when the voltage at second coil both ends reaches the breakdown potential of the portable protective gaps
When pressure, the portable protective gaps puncture to reduce the both end voltage of the reactor, pass through the second line when the portable protective gaps puncture
Maximum current-carrying value of the current value of circle less than the second coil.
The reactor further includes iron core, and the iron core passes through the center of the first coil and the second coil, the iron
Insulating cylinder is equipped on the outside of core.
The reactor further includes protective resistance, and the protective resistance is connected with the portable protective gaps, and protection electricity
Resistance is connected in parallel on the both ends of second coil with portable protective gaps, the big electricity that route occurs when playing protection for reducing portable protective gaps
Stream.
So-called portable protective gaps are a kind of simple lightning protection devices being made of two metal electrodes.One of electricity
It extremely fixes on the insulator, connects with live wire, another electrode is connected by auxiliary gap with earthing or grounding means, two electrodes
Between keep as defined in clearance distance.Portable protective gaps simple structure, it is easy to maintain.Under normal circumstances, portable protective gaps are over the ground
Insulation, and dielectric strength is lower than the dielectric level of institute's protection circuit, and therefore, when route is by being struck by lightning, portable protective gaps are first
First it is breakdown because of overvoltage, by a large amount of lightning currents leak into the earth, make overvoltage sharp fall, thus play protection circuit and
The effect of electrical equipment.
A kind of production method with the reactor for inhibiting overvoltage is disclosed in one embodiment of the invention, is such as schemed
Shown in 1, steps are as follows：
Insulation sleeve fastening is set on the outside of iron core；
High-tension cable paper is coated in insulation sleeve outer wall；
The first conducting wire, which is wound, in the outside of the high-tension cable paper forms first coil, one end that first conducting wire is started
It is fixed with glass fiber hose, the first coil carries out coiling by the way of being layered coiling, is provided with height between layers
Voltage cable paper, the first coil are externally provided with insulating paper；
The second conducting wire is wound on the outside of the first coil forms the second coil, one end glass of the second conducting wire ending
Glass fiber hose is fixed, and second coil and first coil are connected in series, and second coil is by the way of being layered coiling
Coiling is carried out, is provided with high-tension cable paper between layers, second coil is externally provided with insulating paper；
Two conducting wires are drawn respectively at the both ends of second coil, are arranged in parallel portable protective gaps on two conducting wires.Institute
The wire diameter for stating the second coil is greater than the wire diameter of first coil, when reactor bears larger voltage, portable protective gaps electricity
Pressure also increases, and carries out discharge prevention, plays thicker effect, and be able to bear instantaneous short circuit mistake using thicker conducting wire
Electric current, protection reactor prevent from burning.
Protective resistance is connected in series in the parallel branch with portable protective gaps in an embodiment of the invention, uses
The high current that route occurs when protection in reducing portable protective gaps.
The portable protective gaps are discharge tube in an embodiment of the invention.It is defeated that discharge tube is that one kind is used in equipment
Enter the high voltage protective element at end.If the voltage at its both ends exceeds it when protecting specification value, inside will appear short circuit phenomenon, and inhale
Receive the mistake high pressure of input.From structure, gas-discharge tube can be regarded to the symmetrical switch with very little capacitor as, just
It is off under normal operating condition, and electrode resistance reaches mega-ohms or more.When surge voltage is more than the resistance to pressure of circuit system
When spending, gas-discharge tube is breakdown and arc discharge phenomenon occurs, since arc photoelectric is forced down, only tens volts, and so as to short
The further up of surge voltage is limited in time.Gas-discharge tube is exactly that surge voltage is limited using above-mentioned principle, right
Circuit plays overvoltage protection.
Beneficial effects of the present invention：Protection reactor of the present invention utilizes electromagnetic induction principle, adds on original reactor
Portable protective gaps, when reactor bears larger voltage, portable protective gaps voltage is also increased, and is carried out discharge prevention, is reduced electricity
Anti- device both end voltage, plays the role of timely protection reactor, prevents from burning damage reactor, and portable protective gaps parallel connection is set
It sets, installation and replacement are more convenient.
The above is a preferred embodiment of the present invention, it should be noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of with the reactor for inhibiting overvoltage, which is characterized in that including lead loop, the lead loop includes first
Coil and the second coil, the first coil and the second coil are connected in series, and second coil both ends have been arranged in parallel protection
Gap, when the voltage at second coil both ends reaches the breakdown voltage of the portable protective gaps, portable protective gaps breakdown with
The both end voltage of the reactor is reduced, by the current value of the second coil less than the second coil when the portable protective gaps puncture
Maximum current-carrying value.
2. according to claim 1 a kind of with the reactor for inhibiting overvoltage, which is characterized in that second coil
Wire diameter is greater than the wire diameter of first coil, and the number of turns of second coil is less than the number of turns of first coil.
3. according to claim 1 a kind of with the reactor for inhibiting overvoltage, which is characterized in that it further include iron core, institute
The center that iron core passes through the first coil and the second coil is stated, is equipped with insulating cylinder on the outside of the iron core.
4. according to claim 1 a kind of with the reactor for inhibiting overvoltage, which is characterized in that further include protection electricity
Resistance, the protective resistance are connected with the portable protective gaps, and the protective resistance and portable protective gaps are connected in parallel on second coil
Both ends.
5. a kind of production method with the reactor for inhibiting overvoltage, which is characterized in that steps are as follows：
Insulation sleeve fastening is set on the outside of iron core；
High-tension cable paper is coated in insulation sleeve outer wall；
The first conducting wire, which is wound, in the outside of the high-tension cable paper forms first coil；
The second conducting wire is wound on the outside of the first coil and forms the second coil, and second coil is connected company with first coil
It connects；
Two conducting wires are drawn respectively at the both ends of second coil, are arranged in parallel portable protective gaps on two conducting wires.
6. a kind of production method with the reactor for inhibiting overvoltage according to claim 5, which is characterized in that described
Portable protective gaps are discharge tube.
7. a kind of production method with the reactor for inhibiting overvoltage according to claim 5, which is characterized in that described
The coil both ends of reactor are arranged with fiberglass pipe respectively.
8. a kind of production method with the reactor for inhibiting overvoltage according to claim 5, which is characterized in that described
Insulating paper is equipped with outside first coil and the second coil.
9. a kind of production method with the reactor for inhibiting overvoltage according to claim 5, which is characterized in that described
The winding method of first coil and the second coil is layering coiling, is provided with high-tension cable paper between layers.
10. a kind of production method with the reactor for inhibiting overvoltage according to claim 5, which is characterized in that
Protective resistance is connected in series in parallel branch with portable protective gaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655138.3A CN108831711A (en) | 2018-06-23 | 2018-06-23 | A kind of reactor and preparation method thereof with inhibition overvoltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655138.3A CN108831711A (en) | 2018-06-23 | 2018-06-23 | A kind of reactor and preparation method thereof with inhibition overvoltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831711A true CN108831711A (en) | 2018-11-16 |
Family
ID=64138059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810655138.3A Withdrawn CN108831711A (en) | 2018-06-23 | 2018-06-23 | A kind of reactor and preparation method thereof with inhibition overvoltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831711A (en) |
-
2018
- 2018-06-23 CN CN201810655138.3A patent/CN108831711A/en not_active Withdrawn
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181116 |