CN211179975U - Rear plugging type electronic voltage sensor - Google Patents
Rear plugging type electronic voltage sensor Download PDFInfo
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- CN211179975U CN211179975U CN201921543780.9U CN201921543780U CN211179975U CN 211179975 U CN211179975 U CN 211179975U CN 201921543780 U CN201921543780 U CN 201921543780U CN 211179975 U CN211179975 U CN 211179975U
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- epoxy glass
- steel cylinder
- voltage
- glass steel
- signal acquisition
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Abstract
The utility model discloses a back shutoff formula electronic type voltage sensor, including an epoxy glass steel cylinder, be equipped with in the epoxy glass steel cylinder and get electric module and signal acquisition communication module, signal acquisition communication module one end just is connected with the inserts on epoxy glass steel cylinder top, and the bottom is equipped with the shielding metal box in the epoxy glass steel cylinder, is equipped with signal conditioning module in the shielding metal box, and signal acquisition communication module all is connected signal conditioning module with getting electric module, and a shielding metal box side evenly is equipped with a plurality of plugs, and the shielding metal box pegs graft mutually with an epoxy glass steel cylinder through the plug, compares with prior art, the beneficial effects of the utility model are that: the electronic voltage sensor described in the patent not only solves the problems of large difficulty, complex operation and the like of the existing mutual inductor in site construction, but also can complete the voltage sampling and power supply functions on the premise of not increasing and changing a PT cabinet, and provides support for line loss measurement.
Description
Technical Field
The utility model relates to an electrical equipment technical field specifically is a back shutoff formula electronic type voltage sensor.
Background
Along with the technical requirement that the national grid once and twice fuses, current looped netowrk cabinet need carry out automatic upgrading, join in marriage net transformation and need support the line and decrease the measurement function, many areas's looped netowrk cabinet need increase the PT cabinet, but the place is limited, can't install the PT cabinet additional, because electronic type voltage sensor does not contain the iron core, can not produce ferromagnetic resonance, electronic type voltage sensor has more and more be applied to in the distribution network, consequently, the technical scheme that needs a back shutoff formula electronic type voltage sensor at present solves above-mentioned problem, provide the measurement of support line loss.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a back shutoff formula electronic type voltage sensor to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a back shutoff formula electronic type voltage sensor, includes an epoxy glass steel cylinder, be equipped with in the epoxy glass steel cylinder and get electric module and signal acquisition communication module, signal acquisition communication module one end just is connected with the inserts on epoxy glass steel cylinder top, the bottom is equipped with shielding metal box in the epoxy glass steel cylinder, be equipped with signal conditioning module in the shielding metal box, signal acquisition communication module with get electric module all to be connected with signal conditioning module, a shielding metal box side evenly is equipped with a plurality of plugs, shielding metal box pegs graft with epoxy glass steel cylinder mutually through the plug.
Preferably, the power taking module and the signal acquisition communication module are connected with a primary voltage, the power taking module is provided with a coaxial capacitor on a concentric high-voltage metal conductor, and one end of the coaxial capacitor is connected with a sampling capacitor.
Preferably, the coaxial capacitor is made of a high dielectric constant material, and the surface of the coaxial capacitor is coated with an epoxy resin coupling agent.
Preferably, the signal acquisition communication module comprises a resistance voltage divider, a high-voltage compensation shielding electrode, a low-voltage compensation shielding electrode and an overvoltage protection device, and the signal acquisition communication module is positioned on one side of the epoxy glass fiber reinforced plastic cylinder far away from the shielding metal box.
Preferably, the signal acquisition communication module comprises a capacitive voltage divider and an overvoltage protection device, and the overvoltage protection device is arranged in the voltage divider.
Preferably, the capacitive divider comprises a high-voltage arm capacitor and a low-voltage arm capacitor.
Compared with the prior art, the beneficial effects of the utility model are that:
the electronic voltage sensor described in the patent not only solves the problems of large difficulty, complex operation and the like of the existing mutual inductor in site construction, but also can complete the voltage sampling and power supply functions on the premise of not increasing and changing a PT cabinet, and provides support for line loss measurement.
Drawings
Fig. 1 is a schematic view of the split structure of the present invention;
in the figure: 1. an epoxy glass fiber reinforced plastic cylinder; 2. an insert; 3. sampling a capacitor; 4. a sampling capacitor; 5. a plug; 6. a signal conditioning module; 7. a low voltage compensation shield electrode; 8. a high voltage compensation shield electrode; 9. a resistive voltage divider; 10. a shielding metal box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a back shutoff formula electronic type voltage sensor, including epoxy glass steel cylinder 1, be equipped with in epoxy glass steel cylinder 1 and get electric module and signal acquisition communication module, signal acquisition communication module one end just is connected with inserts 2 on 1 top of epoxy glass steel cylinder, the bottom is equipped with shielding metal box 10 in the epoxy glass steel cylinder 1, be equipped with signal conditioning module 6 in the shielding metal box 10, signal acquisition communication module all is connected with signal conditioning module 6 with getting the electric module, 10 a side of shielding metal box evenly is equipped with a plurality of plugs 5, shielding metal box 10 pegs graft mutually through plug 5 and epoxy glass steel cylinder 1, this shielding metal box 10 is used for shielding external disturbance, improve the measuring accuracy. The functions of the signal conditioning module 6 include filtering, amplitude modulation, phase modulation, and impedance transformation.
The power taking module and the signal acquisition communication module are connected with primary voltage, the power taking module is provided with a coaxial capacitor 3 on a concentric high-voltage metal conductor, the coaxial capacitor 3 can be cast by adopting a mould and is subjected to precision machining after demoulding, the precision and the consistency of the coaxial capacitor are ensured, one end of the coaxial capacitor 3 is connected with a sampling capacitor 4, the power taking capacitor 4 is made of a high-dielectric constant material, the coaxial capacitor 3 is made of a high-dielectric constant material, the surface of the coaxial capacitor 3 is coated with an epoxy resin coupling agent, in order to prevent creepage adhesion with the surface of resin, the surface of a ceramic capacitor is coated with the epoxy resin coupling agent, a gap is prevented from being generated after surface pouring, the signal acquisition communication module comprises a resistance voltage divider 9, a high-voltage compensation shielding electrode 8, a low-voltage compensation shielding electrode 7 and an overvoltage protection device, and the signal acquisition communication module is positioned at one side of the, the signal acquisition communication module comprises a capacitive voltage divider and an overvoltage protection device, the overvoltage protection device is arranged in the high-precision capacitive voltage divider, and the capacitive voltage divider comprises a high-voltage arm capacitor and a low-voltage arm capacitor.
According to the invention, an electricity taking module of the rear-plugging electronic voltage sensor obtains an alternating voltage signal from a system, and supplies power to a subsequent instrument through rectification and filtering, a signal acquisition module 6 measures the voltage quantity of the system by using a capacitance voltage division principle and sends the voltage quantity to a signal conditioning module 6 in an epoxy glass steel cylinder 1 through a plug 15, the signal conditioning module 6 filters an initial signal, adjusts the amplitude, conditions the phase and finally outputs the phase, and by adopting a plug connection mode, the problems of high field construction difficulty, complex operation and the like of the existing mutual inductor are solved, and the voltage sampling and power supply functions can be completed on the premise of not changing a PT cabinet, so that support is provided for line loss measurement.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a back shutoff formula electronic type voltage sensor, includes epoxy glass steel cylinder (1), its characterized in that: be equipped with in epoxy glass steel cylinder (1) and get electric module and signal acquisition communication module, signal acquisition communication module one end just is connected with inserts (2) on epoxy glass steel cylinder (1) top, the bottom is equipped with shielding metal box (10) in epoxy glass steel cylinder (1), be equipped with signal conditioning module (6) in shielding metal box (10), signal acquisition communication module all is connected with signal conditioning module (6) with getting the electric module, shielding metal box (10) side evenly is equipped with a plurality of plugs (5), shielding metal box (10) are pegged graft mutually with epoxy glass steel cylinder (1) through plug (5).
2. The rear-blocking electronic voltage sensor according to claim 1, wherein: the power taking module and the signal acquisition communication module are connected with primary voltage, the power taking module is provided with a coaxial capacitor (3) on a concentric high-voltage metal conductor, and one end of the coaxial capacitor (3) is connected with a sampling capacitor (4).
3. The rear-blocking electronic voltage sensor according to claim 2, wherein: the coaxial capacitor (3) is made of a high-dielectric-constant material, and the surface of the coaxial capacitor (3) is coated with an epoxy resin coupling agent.
4. The rear-blocking electronic voltage sensor according to claim 1, wherein: the signal acquisition communication module comprises a resistance voltage divider (9), a high-voltage compensation shielding electrode (8), a low-voltage compensation shielding electrode (7) and an overvoltage protection device, and is positioned on one side, far away from the shielding metal box (10), of the epoxy glass fiber reinforced plastic cylinder (1).
5. The rear-blocking electronic voltage sensor according to claim 1, wherein: the signal acquisition communication module comprises a capacitive voltage divider and an overvoltage protection device, and the overvoltage protection device is arranged in the voltage divider.
6. The rear-blocking electronic voltage sensor according to claim 5, wherein: the capacitive voltage divider includes a high-voltage arm capacitance and a low-voltage arm capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543780.9U CN211179975U (en) | 2019-09-17 | 2019-09-17 | Rear plugging type electronic voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543780.9U CN211179975U (en) | 2019-09-17 | 2019-09-17 | Rear plugging type electronic voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211179975U true CN211179975U (en) | 2020-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921543780.9U Active CN211179975U (en) | 2019-09-17 | 2019-09-17 | Rear plugging type electronic voltage sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211179975U (en) |
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2019
- 2019-09-17 CN CN201921543780.9U patent/CN211179975U/en active Active
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