CN208297597U - A kind of electron capacitance formula voltage sensor - Google Patents
A kind of electron capacitance formula voltage sensor Download PDFInfo
- Publication number
- CN208297597U CN208297597U CN201821084611.9U CN201821084611U CN208297597U CN 208297597 U CN208297597 U CN 208297597U CN 201821084611 U CN201821084611 U CN 201821084611U CN 208297597 U CN208297597 U CN 208297597U
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- China
- Prior art keywords
- sealing cover
- shell
- voltage sensor
- end sealing
- formula voltage
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Abstract
The utility model discloses a kind of electron capacitance formula voltage sensors, it is made of three measurement modules, each measurement module includes shell, main capacitance, temperature control module, conducting wire, it is hollow structure in the shell and fills insulating oil, the main capacitance is arranged in shell and connect with temperature control module, described conducting wire one end is connect with temperature control module, and the other end is connect with monitored equipment.The utility model can be avoided the gap between face contact and there are problems that error so as to cause detection data in partial discharge quantity increase and low temperature environment, can reduce partial discharge quantity, improve equipment safety coefficient, detection accurately.
Description
Technical field
The utility model belongs to power measurement technical field, and in particular to a kind of electron capacitance formula voltage sensor.
Background technique
The inner core packaged type of existing electron capacitance formula voltage sensor is poured with epoxy resin (solid-state) encapsulation.Due to master
Capacitor is glaze paint, and it is weak to be attached to ability, so between this packaged type can leave between cured resin and main capacitance outer wall
Gap, in gap can gassy so as to cause partial discharge quantity increase influence service life of equipment.
The use environment temperature of electron capacitance formula voltage sensor is between -40 DEG C~+70 DEG C, in existing electronic type voltage
In the course of work of sensor, when temperature is higher than+60 DEG C lower than -30 DEG C, due to the presence of capacitor itself temperature drift coefficient, cause
Selfcapacity amount distortion, so that partial pressure output accuracy be made to be distorted.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of electron capacitance formula voltage sensors.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The utility model embodiment provides a kind of electron capacitance formula voltage sensor, is made of three measurement modules, each
Measurement module includes shell, main capacitance, temperature control module, conducting wire, is hollow structure in the shell and fills insulating oil, described
Main capacitance is arranged in shell and connect with precision modulation module, and described conducting wire one end is connect with precision modulation module, another
End is connect with monitored equipment.
In above scheme, the shell includes upper end sealing cover, lower end sealing cover, insulator, the insulator up and down
Upper end sealing cover, lower end sealing cover is respectively set in both ends.
In above scheme, the upper end sealing cover and lower end sealing cover are provided with ultra-thin packet with insulator junction respectively
Side.
In above scheme, the top of the upper end sealing cover uses designed arc-shaped appearance.
Compared with prior art, the utility model can be avoided the gap between face contact so as to cause partial discharge quantity increasing
In big and low temperature environment there is error in detection data, can reduce partial discharge quantity, improve equipment safety coefficient, detection
Accurately.
Detailed description of the invention
Fig. 1 provides a kind of structural schematic diagram of electron capacitance formula voltage sensor for the utility model embodiment；
Fig. 2 provides a kind of usage state diagram of electron capacitance formula voltage sensor for the utility model embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model embodiment provides a kind of electron capacitance formula voltage sensor, as shown in Figure 1, 2, by several measurements
Module composition, each measurement module include shell, main capacitance 3, precision modulation module 4, conducting wire 5, are hollow knot in the shell
Structure and fill insulating oil 2, the main capacitance 3 is arranged in shell and connect with temperature control module 4, described 5 one end of conducting wire and
Precision modulation module 4 connects, and the other end is connect with monitored equipment.
The main capacitance 3 is immersed in the environment of insulating oil 2, in this way, insulating oil 2 is to the attached of the outer wall glaze paint of main capacitance 3
Put forth effort epoxy resin to be much stronger than, so reduce existing gap value between two parts contact surface, then reduces depositing for gas
, in such processes come achieve the purpose that reduce partial discharge quantity, improve equipment safety coefficient.
When the temperature varies, under the adjusting compensating action of precision modulation module 4, though environment temperature drop to-
30 DEG C hereinafter, the output accuracy of detection unit generates distortion and distortion the problem of will not drifting about because of capacitor own temperature.After
And obtain relatively accurate real available value numerical value.
The shell includes upper end sealing cover 1, lower end sealing cover 6, insulator 7, the upper and lower ends difference of the insulator 7
Upper end sealing cover 1, lower end sealing cover 6 are set.
The upper end sealing cover 1 and lower end sealing cover 6 are provided with ultra-thin bound edge with 7 junction of insulator respectively, in this way, keeping away
Exempt from the design of iron plate formula and increase product appearance entirety, unified sense in the gap Na Dao that product side leaves, and can guarantee the close of product
Feng Xing.
The top of the upper end sealing cover 1 uses designed arc-shaped appearance.
As shown in Fig. 2, being made of electronic voltage transducer three measurement modules, each measurement module is mounted on bottom plate
On.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (4)
1. a kind of electron capacitance formula voltage sensor, which is characterized in that be made of three measurement modules, each measurement module includes
Shell, main capacitance, precision modulation module, conducting wire, the shell is interior to be hollow structure and fills insulating oil, and the main capacitance is set
Set in shell and connect with precision modulation module, described conducting wire one end is connect with precision modulation module, the other end with supervised
Measurement equipment connection.
2. a kind of electron capacitance formula voltage sensor according to claim 1, which is characterized in that the shell includes upper end
Upper end sealing cover, lower end sealing cover is respectively set in sealing cover, lower end sealing cover, insulator, the upper and lower ends of the insulator.
3. a kind of electron capacitance formula voltage sensor according to claim 2, which is characterized in that the upper end sealing cover and
Lower end sealing cover is provided with ultra-thin bound edge with insulator junction respectively.
4. a kind of electron capacitance formula voltage sensor according to claim 2 or 3, which is characterized in that the upper end sealing
The top of lid uses designed arc-shaped appearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821084611.9U CN208297597U (en) | 2018-07-10 | 2018-07-10 | A kind of electron capacitance formula voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821084611.9U CN208297597U (en) | 2018-07-10 | 2018-07-10 | A kind of electron capacitance formula voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208297597U true CN208297597U (en) | 2018-12-28 |
Family
ID=64700221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821084611.9U Active CN208297597U (en) | 2018-07-10 | 2018-07-10 | A kind of electron capacitance formula voltage sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208297597U (en) |
-
2018
- 2018-07-10 CN CN201821084611.9U patent/CN208297597U/en active Active
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