CN208507334U - A kind of novel noninductive resistor - Google Patents
A kind of novel noninductive resistor Download PDFInfo
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- CN208507334U CN208507334U CN201821077080.0U CN201821077080U CN208507334U CN 208507334 U CN208507334 U CN 208507334U CN 201821077080 U CN201821077080 U CN 201821077080U CN 208507334 U CN208507334 U CN 208507334U
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- winding wire
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Abstract
The utility model is specifically related to a kind of novel noninductive resistor, winding wire including skeleton and at least two encapsulatings being wound on the skeleton, the winding wire of each encapsulating includes the second winding wire for being wound on the first winding wire of inside and being wound on outside, the end of first winding wire is the starting point of second winding wire, second winding wire is oppositely wound, ventilating air passage is provided between the winding wire of adjacent encapsulating, second winding wire end of a upper encapsulating is connected to the starting point of first winding wire of next encapsulating.The utility model is achieved the purpose that the magnetic field superposition between encapsulating neutralizes, is made resistor induction reactance close to zero using the positive and negative winding more encapsulated；It is provided with ventilating air passage between encapsulating, improves the radiating efficiency of resistor.
Description
Technical field
The utility model relates to electric power component technical fields, and in particular to a kind of novel noninductive resistor.
Background technique
Noninductive resistor is also known as load resistance, braking resistor, is mainly characterized in that induction reactance value very little and is intended to zero, inductance
Value can be neglected in practical engineering applications, be widely used in transformer neutral point resistance grounded, and large-scale power instrument is set
The directions such as standby, bleeder circuit, device for power absorption, power electronics.
It is well known that the resistance of high induction reactance is easy to produce concussion in systems, it is unfavorable for the stable operation of electric system, sternly
When weight, power system collapse may be directly resulted in.Therefore, in electric system process of construction, the reactance of system should be minimized
Value uses the electricity of transposition technology equilibrium route to reinforce the stability and reliability of electric system such as on three phase transmission line road
Sense, substation, which increase, builds capacitor power compensation device etc..
Currently, noninductive resistance is mainly concentrated and rests on low pressure applications region in the market, high voltage non-inductance resistor research and product
Relatively simple and its dynamic thermal stability is poor.
Summary of the invention
In view of the deficiencies of the prior art, the utility model provides a kind of novel noninductive resistor, novel noninductive for solving
Resistor induction reactance height and the low problem of radiating efficiency.
The content of the utility model is as follows:
A kind of novel noninductive resistor, the winding wire including skeleton and at least two encapsulatings being wound on the skeleton, often
The winding wire of one encapsulating includes the second winding wire for being wound on the first winding wire of inside and being wound on outside, first winding
The end of line is the starting point of second winding wire, and second winding wire is oppositely wound, between the winding wire of adjacent encapsulating
It is provided with ventilating air passage, second winding wire end of a upper encapsulating is connected to rising for first winding wire of next encapsulating
Beginning.
Preferably, insulating layer is provided between first winding and second winding.
Preferably, the fiberglass gridding that the insulating layer uses several layers to be superimposed.
Preferably, the fiberglass gridding that the insulating layer is added together using 3 stackings, the thickness of the fiberglass gridding
Degree is 1.2mm.
Preferably, first winding wire and second winding wire use conductive plain conductor.
Preferably, first winding wire and second winding wire use copper conductor or aluminum conductor.
Preferably, the junction of first winding wire and second winding wire be the first turning point, described first turn
The surface of point is provided with insulating layer.
Further, the insulating layer is glass fibre belt insulating layer.
Preferably, the junction of the first winding wire of the second winding wire and next encapsulating of a upper encapsulating is the
The surface of two turning points, second turning point is provided with insulating layer.
Further, the insulating layer is glass fibre belt insulating layer.
The utility model has the following beneficial effects: the utility model using the positive and negative winding more encapsulated, reaches between encapsulating winding
Magnetic field superposition neutralize purpose, make resistor induction reactance close to zero；It is provided with ventilating air passage between encapsulating winding, improves resistor
Radiating efficiency.
Detailed description of the invention
Fig. 1 show the winding scheme schematic diagram of novel noninductive resistor；
Fig. 2 show the schematic cross-sectional view of novel noninductive resistor (three encapsulatings)；
Fig. 3 show novel noninductive resistor and individually encapsulates magnetic force line analysis schematic diagram.
Specific embodiment
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Fig. 1-2 is please referred to, present embodiment discloses a kind of novel noninductive resistor, including skeleton 1 and is wound on the bone
The winding wires of at least two encapsulatings on frame 1, each encapsulating include being wound on the first winding wire 2 of inside and being wound on the of outside
Two winding wires 3, the end of the first winding wire 2 are the starting point of the second winding wire 3, and the second winding wire 3 is oppositely wound, the first winding
The junction of line 2 and the second winding wire 3 is the first turning point 4, and the first turning point 4 does insulation processing using glass fibre belt winding.The
It is provided with dielectric isolation layer 5 between one winding wire 2 and the second winding wire 3, prevents adjacent winding wire short circuit, dielectric isolation layer 5 is adopted
It is constituted with the fiberglass gridding of three layers of 1.2mm thickness.It is provided with ventilating air passage 6 between the winding wire of connected encapsulating, can be improved
The radiating efficiency of resistor.Second winding wire end of a upper encapsulating is the starting point of the first winding wire of next encapsulating, the company
Meeting place is the second turning point 7, and the second turning point 7 does insulation processing using glass fibre belt winding.It is complete that resistor outermost encapsulates coiling
It is formed at rear using epoxy resin integral vacuum insulation pouring.
Referring to figure 3., when single encapsulating, electric current is flowed into from the first winding wire 2, is flowed out from the second winding wire 3, the first winding
The magnetic line of force that line 2 and the second winding wire 3 generate is respectively first magnetic line of force 21 and second magnetic line of force 31.Theoretically, positive and negative coiling
The first winding and the second winding structure it is consistent, the size of current same direction in winding is on the contrary, therefore, two coils are spatially
Generated magnetic field is almost equal in magnitude contrary, and magnetic field superposition is neutralized and gone to zero, i.e., no-feel condition is presented in entire encapsulating,
To which entire resistor is without inductance value.But in practical engineering application and technique, the positive and negative winding of single encapsulating is difficult to have accomplished
It is exactly the same, thus space induced magnetic field can not complete neutralization, i.e., single encapsulating inductance value be difficult to accomplish it is absolutely noninductive or very
Level off to zero.To obtain requiring inductance value very harsh novel noninductive resistor, the present embodiment using three encapsulatings around
Group line achievees the purpose that encapsulate the magnetic field superposition between winding and neutralizes.Winding wire uses flat type aluminium wire or flat type copper wire, has plasticity
By force, anti-oxidant and temperature rise calculates the advantages that accurate, and the dynamic and thermal stability current value of resistor can be improved.
The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation
Mode, as long as its technical effect for reaching the utility model with identical means, all should belong to the protection scope of the utility model.
Its technical solution and/or embodiment within the protection scope of the present utility model can have a variety of different modifications and variations.
Claims (10)
1. a kind of novel noninductive resistor, the winding including skeleton (1) and at least two encapsulatings being wound on the skeleton (1)
Line, it is characterised in that: the winding wire of each encapsulating includes second on the outside of being wound on the first winding wire (2) of inside and being wound on
Winding wire (3), the end of first winding wire (2) are the starting point of second winding wire (3), second winding wire
(3) oppositely wound, it is provided between the winding wire of adjacent encapsulating ventilating air passage (6), second winding wire (3) of a upper encapsulating
End is connected to the starting point of first winding wire (2) of next encapsulating.
2. novel noninductive resistor as described in claim 1, it is characterised in that: first winding (2) and described second around
Group is provided with insulating layer between (3).
3. novel noninductive resistor as claimed in claim 2, it is characterised in that: the insulating layer is superimposed upon one using several layers
The fiberglass gridding risen.
4. novel noninductive resistor as claimed in claim 3, it is characterised in that: the insulating layer is added together using 3 stackings
Fiberglass gridding, the fiberglass gridding with a thickness of 1.2mm.
5. novel noninductive resistor as described in claim 1, it is characterised in that: first winding wire (2) and described second
Winding wire (3) uses conductive plain conductor.
6. novel noninductive resistor as claimed in claim 5, it is characterised in that: first winding wire (2) and described second
Winding wire (3) uses copper conductor or aluminum conductor.
7. novel noninductive resistor as described in claim 1, it is characterised in that: first winding wire (2) and described second
The junction of winding wire (3) is the first turning point (4), and the surface of first turning point (4) is provided with insulating layer.
8. novel noninductive resistor as claimed in claim 7, it is characterised in that: the insulating layer is glass fibre belt insulating layer.
9. novel noninductive resistor as described in claim 1, it is characterised in that: the second winding wire (3) of a upper encapsulating
Junction with the first winding wire (2) of next encapsulating is the second turning point (7), the surface of second turning point (7)
It is provided with insulating layer.
10. novel noninductive resistor as claimed in claim 9, it is characterised in that: the insulating layer is glass fibre belt insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077080.0U CN208507334U (en) | 2018-07-09 | 2018-07-09 | A kind of novel noninductive resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077080.0U CN208507334U (en) | 2018-07-09 | 2018-07-09 | A kind of novel noninductive resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507334U true CN208507334U (en) | 2019-02-15 |
Family
ID=65284862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821077080.0U Active CN208507334U (en) | 2018-07-09 | 2018-07-09 | A kind of novel noninductive resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507334U (en) |
-
2018
- 2018-07-09 CN CN201821077080.0U patent/CN208507334U/en active Active
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