CN209784436U

CN209784436U - Electronic voltage sensor

Info

Publication number: CN209784436U
Application number: CN201920027113.9U
Authority: CN
Inventors: 胡杰; 胡梦媛
Original assignee: Xinyang Yudian Transformer Co Ltd
Current assignee: Xinyang Yudian Transformer Co Ltd
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2019-12-13
Anticipated expiration: 2029-01-08

Abstract

The utility model discloses an electronic voltage sensor, including mounting plate, three voltage sensor is installed at mounting plate's top, voltage sensor includes the casing, high-pressure lead wire is installed at the top of casing, phase sequence high voltage resistance is installed to inside one side of casing, zero sequence high voltage resistance is installed to the inside opposite side of casing, and pass through electrode connection between zero sequence high voltage resistance and the top of phase sequence high voltage resistance, phase sequence high voltage resistance's bottom is connected with phase sequence divider resistance, zero sequence high voltage resistance's bottom is connected with zero sequence divider resistance, epoxy is all poured into a mould to the inside of casing, damper is installed to mounting plate's bottom. Has the advantages that: compare in traditional electromagnetic type and capacitanc sensor, the utility model discloses not only improve effectively and detected the accuracy, but also avoided effectively because of the damage that vibrations brought for the sensor, and then prolonged the life of sensor effectively.

Description

Electronic voltage sensor

Technical Field

The utility model relates to an outdoor electric wire netting component technical field particularly, relates to an electronic type voltage sensor.

Background

In the current electric power system, the traditional electromagnetic voltage transformer is mostly adopted for measuring voltage and implementing relay protection. The mutual inductor has iron cores, has narrow measuring frequency band, is easy to generate magnetic saturation to cause large errors, has large volume and is very heavy, and the output is an analog signal. There is also a capacitive voltage transformer which is bulky and heavy due to its use of standard capacitive voltage dividers, and which is also an analog signal output. With the development of the technology, users require that the volume of electric equipment is smaller and smaller, the intelligent degree and the automation degree are higher and higher, and the digitalization of secondary relay protection also requires that a current transformer and a voltage transformer can directly provide digital signals. Obviously, the conventional electromagnetic voltage transformer is no longer suitable for the development of the technology. In addition, most current electromagnetic type voltage transformers do not have the vibration damping mount structure, receive the influence of vibrations when placing for a long time in the field, lead to the mounting plate not hard up, make the sensor pine take off easily to lead to the damage of sensor.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The technical task of the utility model is to above not enough, provide an electronic type voltage sensor, solve the problem among the above-mentioned background art.

The technical scheme of the utility model is realized like this:

The utility model provides an electronic type voltage sensor, includes mounting plate, three voltage sensor is installed at mounting plate's top, voltage sensor includes the casing, high-voltage lead is installed at the top of casing, phase sequence high voltage resistance is installed to inside one side of casing, zero sequence high voltage resistance is installed to the inside opposite side of casing, just zero sequence high voltage resistance with pass through electrode connection between phase sequence high voltage resistance's the top, phase sequence high voltage resistance's bottom is connected with phase sequence divider resistance, zero sequence high voltage resistance's bottom is connected with zero sequence divider resistance, epoxy is all poured into a mould to the inside of casing, damper is installed to mounting plate's bottom.

Furthermore, a cavity is arranged inside the mounting base plate, and a bottom cover matched with the mounting base plate is installed at the bottom of the cavity.

Furthermore, the voltage sensors are connected through double-shielding five-core wires, the double-shielding five-core wires are located inside the cavity, and one ends of the double-shielding five-core wires extend to the outer side of the cavity.

Further, damper includes the mounting panel, the bottom of mounting panel is provided with a plurality of group spring one, the fixed plate is installed to the bottom of spring one, a plurality of screw hole has all been run through to the both sides of fixed plate, the riser has all been welded to the top both sides of fixed plate, the opening has all been seted up on the riser, all be provided with the backup pad in the opening, just the top and the bottom of backup pad with all connect through a plurality of group spring two between the opening, all run through in the backup pad and be provided with the connecting rod, just the one end of connecting rod with be located the limiting plate fixed connection of riser one side, the other end of connecting rod all with mounting panel fixed connection.

furthermore, both ends of the first spring are respectively connected with the mounting plate and the fixing plate through connecting blocks.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. The utility model discloses an electronic sensor's setting has avoided arousing big error because of magnetic saturation effectively, and then has improved its detection accuracy effectively, in addition, through electronic sensor's setting, has realized digital output, can satisfy the digital, intelligent requirement of measurement, relay protection.

2. The utility model discloses a be provided with damper to make it effectively cushion vibrations, thereby can not lead to mounting plate not hard up and make the sensor pine take off, thereby protected the sensor effectively not receive the damage, and then prolonged the life of sensor effectively.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic voltage sensor according to an embodiment of the present invention;

fig. 2 is a top view of an electronic voltage sensor according to an embodiment of the present invention;

Fig. 3 is a schematic side view of a vertical plate in an electronic voltage sensor according to an embodiment of the present invention.

In the figure:

1. Mounting a bottom plate; 2. a voltage sensor; 3. a housing; 4. a high voltage lead; 5. a phase sequence high voltage resistor; 6. a zero sequence high voltage resistor; 7. an electrode; 8. a phase sequence divider resistor; 9. a zero-sequence voltage-dividing resistor; 10. an epoxy resin; 11. a cavity; 12. a bottom cover; 13. double-shielded five-core wire; 14. a damping mechanism; 15. mounting a plate; 16. a first spring; 17. connecting blocks; 18. a fixing plate; 19. a threaded hole; 20. a vertical plate; 21. an opening; 22. a support plate; 23. a second spring; 24. a connecting rod; 25. and a limiting plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 being 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" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1-3, an electronic voltage sensor according to an embodiment of the present invention includes a mounting plate 1, three voltage sensors 2 are mounted on the top of the mounting plate 1, the voltage sensors 2 include a housing 3, a high voltage lead 4 is mounted on the top of the housing 3, a phase sequence high voltage resistor 5 is mounted on one side inside the housing 3, a zero sequence high voltage resistor 6 is mounted on the other side inside the housing 3, the zero sequence high voltage resistor 6 is connected to the top of the phase sequence high voltage resistor 5 through an electrode 7, a phase sequence divider resistor 8 is connected to the bottom of the phase sequence high voltage resistor 5, a zero sequence divider resistor 9 is connected to the bottom of the zero sequence high voltage resistor 6, epoxy resin 10 is poured into the housing 3, and the components inside the housing 3 are integrated by pouring epoxy resin 10 into the housing 3, adopt indoor epoxy 10 to pour into a mould totally enclosed structure in the casing 3, structural connection is firm, do not have oily dirt outward, insulating effectual, and casing 3 adopts rubber to have fine waterproof, prevent to open the effect of gluing ageing, anti ultraviolet, damper 14 is installed to the bottom of mounting plate 1. The utility model effectively avoids large error caused by magnetic saturation through the arrangement of the electronic sensor, thereby effectively improving the detection accuracy, and in addition, the digital output is realized through the arrangement of the electronic sensor, thereby meeting the digital and intelligent requirements of measurement and relay protection; furthermore, the utility model discloses a be provided with damper 14 to make it effectively cushion vibrations, thereby can not lead to mounting plate 1 not hard up and make the sensor pine take off, thereby protected the sensor effectively not receive the damage, and then prolonged the life of sensor effectively.

When the voltage sensor is specifically applied, a cavity 11 is arranged inside the mounting base plate 1, a bottom cover 12 matched with the mounting base plate 1 is installed at the bottom of the cavity 11, the voltage sensors 2 are connected through a double-shielding five-core wire 13, the double-shielding five-core wire 13 is located inside the cavity 11, one end of the double-shielding five-core wire 13 extends to the outer side of the cavity 11, the damping mechanism 14 comprises a mounting plate 15, the mounting plate 15 is fixedly connected with the mounting base plate 1 through bolts, a plurality of groups of first springs 16 are arranged at the bottom of the mounting plate 15, a fixing plate 18 is installed at the bottom of the first springs 16, a plurality of threaded holes 19 are formed in both sides of the fixing plate 18 in a penetrating manner, vertical plates 20 are welded on both sides of the top of the fixing plate 18, openings 21 are formed in the vertical plates 20, and support plates 22 are arranged in the openings 21, the top and the bottom of the supporting plate 22 are connected with the opening 21 through a plurality of groups of springs II 23, a connecting rod 24 is arranged on the supporting plate 22 in a penetrating mode, one end of the connecting rod 24 is fixedly connected with a limiting plate 25 located on one side of the vertical plate 20, and the other end of the connecting rod 24 is fixedly connected with the mounting plate 15. Through being provided with damper 14 to make it can effectively cushion vibrations, thereby can not lead to mounting plate 1 not hard up and make the sensor pine take off, thereby protected the sensor not damaged effectively, and then prolonged the life of sensor effectively, the both ends of spring 16 all through connecting block 17 respectively with mounting panel 15 with fixed plate 18 is connected.

In summary, with the aid of the technical solution of the present invention, by setting the electronic sensor, a large error caused by magnetic saturation is effectively avoided, and further, the detection accuracy is effectively improved, and in addition, by setting the electronic sensor, digital output is realized, and the requirements of digitization and intellectualization of measurement and relay protection can be met; furthermore, the utility model discloses a be provided with damper 14 to make it effectively cushion vibrations, thereby can not lead to mounting plate 1 not hard up and make the sensor pine take off, thereby protected the sensor effectively not receive the damage, and then prolonged the life of sensor effectively.

Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.

Claims

1. The electronic voltage sensor is characterized by comprising an installation bottom plate (1), three voltage sensors (2) are installed at the top of the installation bottom plate (1), each voltage sensor (2) comprises a shell (3), a high-voltage lead (4) is installed at the top of each shell (3), a phase sequence high-voltage resistor (5) is installed on one side of the inside of each shell (3), a zero sequence high-voltage resistor (6) is installed on the other side of the inside of each shell (3), the zero sequence high-voltage resistors (6) are connected with the tops of the phase sequence high-voltage resistors (5) through electrodes (7), the bottoms of the phase sequence high-voltage resistors (5) are connected with phase sequence divider resistors (8), the bottoms of the zero sequence high-voltage resistors (6) are connected with zero sequence divider resistors (9), and epoxy resin (10) is poured into the inside of each shell (3), and a damping mechanism (14) is arranged at the bottom of the mounting bottom plate (1).

2. an electronic voltage sensor according to claim 1, characterized in that a cavity (11) is provided inside the mounting base plate (1), and a bottom cover (12) is mounted on the bottom of the cavity (11) and is matched with the mounting base plate (1).

3. an electronic voltage sensor according to claim 2, characterized in that the voltage sensors (2) are connected by a double-shielded five-core wire (13), and the double-shielded five-core wire (13) is located inside the cavity (11), and one end of the double-shielded five-core wire (13) extends to the outside of the cavity (11).

4. The electronic voltage sensor according to claim 1, wherein the damping mechanism (14) comprises a mounting plate (15), a plurality of sets of first springs (16) are arranged at the bottom of the mounting plate (15), a fixing plate (18) is arranged at the bottom of the first springs (16), a plurality of threaded holes (19) are formed in both sides of the fixing plate (18) in a penetrating manner, vertical plates (20) are welded on both sides of the top of the fixing plate (18), openings (21) are formed in the vertical plates (20), supporting plates (22) are arranged in the openings (21), the top and the bottom of the supporting plates (22) are connected with the openings (21) through a plurality of sets of second springs (23), connecting rods (24) are arranged in the supporting plates (22) in a penetrating manner, and one ends of the connecting rods (24) are fixedly connected with limiting plates (25) located on one side of the vertical plates (20), the other end of the connecting rod (24) is fixedly connected with the mounting plate (15).

5. An electronic voltage sensor according to claim 4, characterized in that both ends of the first spring (16) are connected with the mounting plate (15) and the fixing plate (18) respectively through connecting blocks (17).