CN209657983U - A kind of voltage transformer of the equal pressure plate structure of band - Google Patents
A kind of voltage transformer of the equal pressure plate structure of band Download PDFInfo
- Publication number
- CN209657983U CN209657983U CN201920747753.7U CN201920747753U CN209657983U CN 209657983 U CN209657983 U CN 209657983U CN 201920747753 U CN201920747753 U CN 201920747753U CN 209657983 U CN209657983 U CN 209657983U
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- CN
- China
- Prior art keywords
- voltage
- pressing plate
- equal
- iron core
- voltage transformer
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Abstract
The utility model relates to electrical equipment technical fields, provide a kind of voltage transformer of equal pressure plate structure of band, comprising: a terminal, equal pressing plate, voltage primary coil, voltage secondary coil, iron core, secondary terminals and dielectric；Terminal is fixedly connected with equal pressing plate；The equal pressing plate is fixedly connected with voltage primary coil；Voltage secondary coil is wound on the side stem of the iron core, and iron core passes through voltage primary coil, the primary coil is located at the corresponding position of secondary coil；The secondary coil is electrically connected by conducting wire with secondary terminals；Terminal, equal pressing plate, voltage primary coil, voltage secondary coil, iron core, secondary terminals are integrated by dielectric casting.The utility model can balanced stray capacitance over the ground, keep voltage's distribiuting uniform, partial breakdown do not occur and damage, improve the safety and stability of voltage transformer.
Description
Technical field
The utility model relates to electrical equipment technical field more particularly to a kind of voltage transformers of the equal pressure plate structure of band.
Background technique
In the power system, voltage transformer is commonly applied to a phase voltage measurement and zero-sequence voltage protection control.Voltage
High-voltage end of mutual inductor is connect with system high pressure line, and in operation, high-voltage end of voltage transformer often undertakes operation
Overvoltage and lightning impulse overvoltage.It is highly vulnerable to breakage voltage transformer insulation in this way, reduces the service life, or even burn mutual inductance
Device.
Utility model content
The utility model mainly solves the voltage transformer of the prior art by switching overvoltage and lightning impulse overvoltage,
It destroys voltage transformer insulate, reduce the service life, even burning the technical issues of mutual inductor, proposes a kind of equal pressure plate structure of band
Voltage transformer, can balanced stray capacitance over the ground, keep voltage's distribiuting uniform, partial breakdown do not occur and damage, improve electricity
Press the safety and stability of mutual inductor.
The utility model provides a kind of voltage transformer of equal pressure plate structure of band, comprising: terminal (1), an equal pressing plate
(2), voltage primary coil (3), voltage secondary coil (4), iron core (5), secondary terminals (7) and dielectric (8)；
Terminal (1) is fixedly connected with equal pressing plate (2)；The equal pressing plate (2) and voltage primary coil (3) are fixed
Connection；
Voltage secondary coil (4) are wound on the side stem of the iron core (5), and iron core (5) passes through voltage primary coil
(3), the primary coil (3) is located at the corresponding position of secondary coil (4)；
The secondary coil (4) is electrically connected by conducting wire with secondary terminals (7)；
Terminal (1), equal pressing plate (2), voltage primary coil (3), voltage secondary coil (4), iron core (5), two
Secondary terminal (7) is integrated by dielectric (8) casting.
Preferably, the material of the dielectric (8) is fire retarding epoxide resin.
Preferably, mounting base (6) are arranged in the bottom of the dielectric (8).
Preferably, the shape of the equal pressing plate (2) is circular section closed annular.
Preferably, the material of the equal pressing plate (2) is aluminium.
Preferably, the surface roughness of the equal pressing plate (2) is 1.6.
Preferably, the iron core (5) is electrically connected by conducting wire with mounting base (6).
The voltage transformer of the equal pressure plate structure of a kind of band provided by the utility model, in a terminal and voltage primary coil
Between increase equal pressing plate, equal pressing plate is circular section closed annular structure, and smooth surface is without tip, and current potential is everywhere within its scope
It is equal, can balanced stray capacitance over the ground, keep voltage's distribiuting uniform, partial breakdown do not occur and damage, improve voltage transformer
Safety and stability, extend the service life of voltage transformer.Existing voltage transformer is solved by switching overvoltage
With lightning impulse overvoltage, voltage transformer insulation is destroyed, the problem of reducing the service life, or even burn mutual inductor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the voltage transformer of the equal pressure plate structure of band provided by the utility model.
Appended drawing reference: a 1, terminal；2, equal pressing plate；3, voltage primary coil；4, voltage secondary coil；5, iron core；6,
Mounting base；7, secondary terminals；8, dielectric.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that described herein
Specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It also should be noted that being
Convenient for description, part relevant to the utility model is illustrated only rather than full content in attached drawing.
Fig. 1 is the structural schematic diagram of the voltage transformer of the equal pressure plate structure of band provided by the utility model.As shown in Figure 1,
The voltage transformer of the equal pressure plate structure of band provided by the embodiment of the utility model a, comprising: terminal 1, equal pressing plate 2, voltage one
Secondary coil 3, voltage secondary coil 4, iron core 5, secondary terminals 7 and dielectric 8.
Terminal 1 is fixedly connected with equal pressing plate 2 by welding form；The equal pressing plate 2 and voltage primary coil 3
It is fixedly connected by welding form.
Voltage secondary coil 4 is wound on the side stem of the iron core 5, and iron core 5 passes through voltage primary coil 3, once
Coil 3 is located at the corresponding position of secondary coil 4, specifically, primary coil 3 is located at the outside of secondary coil 4；The secondary coil
4 are electrically connected by conducting wire with secondary terminals 7.
Terminal 1, equal pressing plate 2, voltage primary coil 3, voltage secondary coil 4, iron core 5, secondary terminals 7 pass through
The casting of dielectric 8 is integrated.The material of the dielectric 8 is fire retarding epoxide resin.The bottom of the dielectric 8 is arranged
Mounting base 6.
In the present embodiment, the material of the equal pressing plate 2 is aluminium.The surface roughness of the equal pressing plate 2 is 1.6.It is described
The shape of equal pressing plate 2 is circular section closed annular.In addition, be a little electrically connected by conducting wire with mounting base 6 on the iron core 5,
Make iron core 5 and 6 equipotential of mounting base.
The working principle of the voltage transformer of the equal pressure plate structure of band provided by the embodiment of the utility model: in voltage transformer
Terminal is by switching overvoltage or lightning impulse overvoltage, since mutual inductor primary coil has stray capacitance over the ground, so that
The voltage's distribiuting of voltage transformer high-voltage end is uneven, and the high place of such voltage is easy for being damaged.The present embodiment is in electricity
Equal pressing plate 2 is increased between pressure terminal of mutual inductor and voltage primary coil, equal pressing plate 2 is circular section closed annular structure,
Smooth surface is without tip, and current potential is equal everywhere within its scope, can balanced stray capacitance over the ground, keep voltage's distribiuting uniform, no
Partial breakdown occurs and damages.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is modified the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced, the scope of the technical solutions of the embodiments of the utility model that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of voltage transformer of the equal pressure plate structure of band characterized by comprising a terminal (1), equal pressing plate (2), voltage
Primary coil (3), voltage secondary coil (4), iron core (5), secondary terminals (7) and dielectric (8)；
Terminal (1) is fixedly connected with equal pressing plate (2)；The equal pressing plate (2) and voltage primary coil (3) fixed company
It connects；
Voltage secondary coil (4) are wound on the side stem of the iron core (5), and iron core (5) passes through voltage primary coil (3),
The primary coil (3) is located at the corresponding position of secondary coil (4)；
The secondary coil (4) is electrically connected by conducting wire with secondary terminals (7)；
Terminal (1), equal pressing plate (2), voltage primary coil (3), voltage secondary coil (4), iron core (5), secondary terminals
Sub (7) are integrated by dielectric (8) casting.
2. the voltage transformer of the equal pressure plate structure of band according to claim 1, which is characterized in that the dielectric (8)
Material be fire retarding epoxide resin.
3. the voltage transformer of the equal pressure plate structure of band according to claim 1, which is characterized in that the dielectric (8)
Bottom be arranged mounting base (6).
4. the voltage transformer of the equal pressure plate structure of band according to claim 1, which is characterized in that the equal pressing plate (2)
Shape is circular section closed annular.
5. the voltage transformer of the equal pressure plate structure of band according to claim 4, which is characterized in that the equal pressing plate (2)
Material is aluminium.
6. the voltage transformer of the equal pressure plate structure of band according to claim 5, which is characterized in that the equal pressing plate (2)
Surface roughness is 1.6.
7. the voltage transformer of the equal pressure plate structure of band according to claim 1, which is characterized in that the iron core (5) passes through
Conducting wire is electrically connected with mounting base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747753.7U CN209657983U (en) | 2019-05-23 | 2019-05-23 | A kind of voltage transformer of the equal pressure plate structure of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747753.7U CN209657983U (en) | 2019-05-23 | 2019-05-23 | A kind of voltage transformer of the equal pressure plate structure of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209657983U true CN209657983U (en) | 2019-11-19 |
Family
ID=68530565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920747753.7U Expired - Fee Related CN209657983U (en) | 2019-05-23 | 2019-05-23 | A kind of voltage transformer of the equal pressure plate structure of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209657983U (en) |
-
2019
- 2019-05-23 CN CN201920747753.7U patent/CN209657983U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191119 |