CN214669473U

CN214669473U - Automatic change high tension switchgear temperature rise test system

Info

Publication number: CN214669473U
Application number: CN202120591781.1U
Authority: CN
Inventors: 陈彦; 纪小剑; 骆刚; 吴运明
Original assignee: Wuhan Zhiling Chuanglian Technology Co ltd
Current assignee: Wuhan Zhiling Chuanglian Technology Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-09
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses an automatic change high tension switchgear temperature rise test system, include: the structure comprises a first ceramic column, a second ceramic column, a base, a first connecting potential, a second connecting potential and the like; two groups of vertical first ceramic columns and two groups of vertical second ceramic columns are respectively fixed at two ends of the base, a first connecting potential is fixed at the top of each first ceramic column, a second connecting potential is fixed at the top of each second ceramic column, a rotary hinge is arranged on each second connecting potential, a power receiving clamp is arranged on each first connecting potential, a rotary ruler is hinged to each rotary hinge through a shaft rod, the shaft rod matched with the rotary ruler is concentrically and fixedly connected with one end of a third ceramic column, temperature sensors are arranged on the rotary ruler, the rotary hinge and the power receiving clamp, a temperature changing ring is arranged on each rotary hinge, a first temperature changing strip is arranged on the rotary ruler, and a second temperature changing strip is arranged on the power receiving clamp; the utility model has the advantages that: the method is professional and effective, and the result is more accurate and convincing.

Description

Automatic change high tension switchgear temperature rise test system

Technical Field

The utility model relates to the electric power engineering field specifically is an automatic change high tension switchgear temperature rise test system.

Background

High-voltage switch equipment is also called a high-voltage isolating switch, is an important switch electrical appliance in an electrical system of a power plant and a transformer substation, and needs to be matched with a high-voltage circuit breaker for use; the isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. For switching on, switching off or switching the line in the case of a voltage-loaded load of the high-voltage apparatus; the main functions are as follows: the safety of the high-voltage electrical appliance and the device during maintenance work is ensured, and the function of isolating voltage is realized; the overload capability of the switchgear is related to factors such as the ambient temperature, the load curve, the duration of the maximum load, etc.; at present, a mature distributed accurate test measurement system suitable for the integral temperature rise of the switch equipment does not exist, and the requirement of the safety and reliability of the power grid equipment cannot be met, so that the test system for the temperature rise of the automatic high-voltage switch equipment is needed in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic change high tension switchgear temperature rise test system to solve the problem mentioned in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an automated high voltage switchgear temperature rise test system, comprising: the device comprises a first ceramic column, a second ceramic column, a base, a first connecting potential, a second connecting potential, a rotary hinge, a power receiving clamp, a rotary ruler, a third ceramic column, a shaft seat, a first temperature-variable color strip, a temperature-variable color ring, a second temperature-variable color strip, a temperature sensor, a reinforcing frame, a protective box body, a temperature receiver, a camera, a threading hole and a handle; two groups of vertical first ceramic columns and two groups of vertical second ceramic columns are respectively fixed at two ends of the base, a first connecting potential is fixed at the top of each first ceramic column through a bolt, a second connecting potential is fixed at the top of each second ceramic column through a bolt, a disc-shaped rotating hinge is arranged on each second connecting potential, a power receiving clamp is arranged on each first connecting potential, a rotating ruler is hinged to each rotating hinge through a shaft rod, the length of each rotating ruler needs to meet the requirement that the rotating ruler can rotate around the rotating hinge and one end far away from the rotating hinge is located in the power receiving clamp, the shaft rod matched with the rotating ruler is concentrically and fixedly connected with one end of each third ceramic column, the other end of each third ceramic column is matched on a shaft seat of a plate-shaped structure through a bearing, a handle is fixed at the same end of each third ceramic column, the shaft seats are fixed on the side wall of the protection box body through bolts, the base is fixed on the bottom surface inside the protection box body through bolts, and the protection box body serves as an integral protection shell of the device, providing high voltage protection; the temperature sensing device comprises a rotating hinge, a power receiving clamp, a temperature sensing device and a temperature sensing device, wherein the rotating hinge and the power receiving clamp are respectively provided with at least one group of temperature sensors, the rotating ruler is provided with a plurality of groups of temperature sensors which are arrayed in an array direction by taking the long edge of the rotating ruler as the long edge of the rotating ruler, the front surface of the rotating hinge is provided with an annular concave ring, a temperature indicating coating is coated in the concave ring to form a temperature changing ring, the front surface of the rotating ruler is provided with a strip-shaped concave strip, the temperature indicating coating is coated in the concave strip to form a first temperature changing strip, the front surface of the power receiving clamp is provided with a strip-shaped concave strip, and the temperature indicating coating is coated in the concave strip to form a second temperature changing strip; a camera is fixed on the front surface of the reinforcing frame, and a hole position for taking pictures of a camera lens is arranged on the front surface of the reinforcing frame.

Preferably: a temperature receiver is fixed on the reinforcing frame, and all temperature sensors are electrically connected with the temperature receiver.

Preferably: the reinforcing frame is provided with a thread hole for electrically connecting the temperature sensor and the temperature receiver to form a thread hole.

Preferably: the first temperature-variable color strip, the temperature-variable color ring and the second temperature-variable color strip are all made of reversible temperature indicating pigment.

Preferably: the first contact potential and the power receiving clamp are connected through a bolt to achieve good conductivity, two contact pieces are arranged in the power receiving clamp, the distance between the upper ends of the two contact pieces is smaller than the distance between the lower ends of the two contact pieces, the distance between the upper ends of the two contact pieces is smaller than the thickness of the rotating ruler, and the rotating ruler can rotate around the rotating hinge and then is clamped between the two contact pieces of the power receiving clamp.

Preferably: the second connecting potential and the rotating hinge are of an integrated metal structure.

Preferably: the protective box body is an insulating shell which is made of plastic materials and has the thickness not less than four millimeters.

Preferably: the array interval of the temperature sensors of the array on the rotating ruler is not more than five centimeters.

Preferably: the front end of the third ceramic column is provided with a reinforcing frame parallel to the rotary ruler, the reinforcing frame is provided with a bending structure perpendicular to the rotary ruler in the middle of the rotary ruler, and the front end face of the bending structure is provided with two clamping teeth which are clamped and fixed on two sides of the rotary ruler, so that the structural strength of the rotary ruler during deflection is improved.

Compared with the prior art, the beneficial effects of the utility model are that:

the first temperature color changing strip, the temperature color changing ring, the second temperature color changing strip and the temperature sensor are arranged to connect a first connecting potential and a second connecting potential to a power supply end and a power transmission end of high voltage electricity externally, the rotation of the third ceramic column is realized by rotating the handle outside the protective box body, the third ceramic column drives the rotary ruler and the reinforcing frame to rotate integrally until the rotary ruler rotates around the rotary hinge and is clamped between two contact pieces of the power receiving clamp, at the moment, the first connecting potential and the second connecting potential are electrically conducted due to the connection of the power receiving clamp and the rotary ruler, further the electric connection of the high voltage switch is completed, the power supply end and the power transmission end of the high voltage electricity are connected, at the moment, when the electric conduction of the rotary ruler is partially conducted and completely conducted, the resistance change exists, the electric current action generates an electric heating effect, the electric heating effect is used as a direct action point of the electric conduction, and the electric heating effect of the rotary hinge, the power receiving clamp and the rotary ruler is most obvious, the first temperature-variable color strip, the temperature-variable color ring and the second temperature-variable color strip can present the temperature change condition in a certain time, the temperature change condition is recorded by a camera by adopting fixed-frequency photography or delayed photography so as to most visually represent the electric heating effect of the rotary hinge, the electric receiving clamp and the rotary ruler, and is stored as a most visual color temperature indicating pattern, the electric heating effect of the rotary hinge, the electric receiving clamp and the rotary ruler can be recorded by a temperature sensor on the rotary hinge, the electric receiving clamp and the rotary ruler, real-time and data temperature values are transmitted to a temperature receiver for storage through electric connection, a computer device can be adopted to be connected with the temperature receiver to lead out and arrange the temperature value data in the sequence of a time axis, the temperature values are used as reference data to judge whether the electric heating effect of the rotary hinge, the electric receiving clamp and the rotary ruler meets the operation standard or not, the professional effective technical effect is achieved, and two test results of the temperature-variable pattern and the temperature-variable data are adopted for comparative analysis, the result is more accurate and convincing.

Drawings

Fig. 1 is a schematic diagram of an internal three-dimensional structure of an automatic high-voltage switchgear temperature rise test system.

Fig. 2 is a schematic structural diagram of a test element of an automatic high-voltage switchgear temperature rise test system.

Fig. 3 is a schematic diagram of the overall structure of an automatic high-voltage switchgear temperature rise test system.

Fig. 4 is a schematic view of a threading hole structure of an automatic high-voltage switchgear temperature rise test system.

Fig. 5 is a schematic view of a structure of a rotating handle of an automatic high-voltage switchgear temperature rise test system.

In the figure: 1. a first ceramic post; 2. a second ceramic post; 3. a base; 4. a first connection potential; 5. a second connection potential; 6. hinging; 7. a power receiving clip; 8. rotating a ruler; 9. a third ceramic column; 10. a shaft seat; 11. a first thermochromic strip; 12. a temperature-variable color ring, 13 and a second temperature-variable color bar; 14. a temperature sensor; 15. a reinforcing frame; 16. a protective box body; 17. a temperature receiver; 18. a camera; 19. threading holes; 20. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. 1-5, in an embodiment of the present invention, an automatic high voltage switch equipment temperature rise test system includes: the device comprises a first ceramic column 1, a second ceramic column 2, a base 3, a first connecting potential 4, a second connecting potential 5, a rotary hinge 6, a current-receiving clamp 7, a rotary ruler 8, a third ceramic column 9, a shaft seat 10, a first temperature-variable color strip 11, a temperature-variable color ring 12, a second temperature-variable color strip 13, a temperature sensor 14, a reinforcing frame 15, a protective box body 16, a temperature receiver 17, a camera 18, a threading hole 19 and a handle 20; two groups of vertical first ceramic columns 1 and two groups of vertical second ceramic columns 2 are respectively fixed at two ends of the base 3, a first connecting potential 4 is fixed at the top of each first ceramic column 1 through a bolt, a second connecting potential 5 is fixed at the top of each second ceramic column 2 through a bolt, a disc-shaped rotary hinge 6 is arranged on each second connecting potential 5, a power receiving clamp 7 is arranged on each first connecting potential 4, a rotary ruler 8 is hinged to each rotary hinge 6 through a shaft rod, the length of each rotary ruler 8 is required to meet the requirement that the rotary ruler 8 can rotate around the rotary hinge 6 and one end far away from the rotary hinge 6 is positioned in the power receiving clamp 7, the shaft rod matched with the rotary ruler 8 is concentrically and fixedly connected with one end of a third ceramic shaft seat column 9, the other end of the third ceramic column 9 is matched on a shaft seat 10 of a plate-shaped structure through a bearing, a handle 20 is fixed at the same end of the third ceramic column 9 positioned on a handle 10, and the side wall of a protective box 16 through bolts, the base 3 is fixed on the bottom surface inside the protective box body 16 through bolts, and the protective box body 16 is used as an integral protective shell of the device to provide high-voltage protection; the rotary hinge 6 and the power receiving clamp 7 are respectively provided with at least one group of temperature sensors 14, the rotary hinge 8 is provided with a plurality of groups of temperature sensors 14 which are arrayed in the array direction by taking the long edge of the rotary hinge 8 as the array direction, the front surface of the rotary hinge 6 is provided with an annular concave ring, a temperature indicating coating is coated in the concave ring to form a temperature changing ring 12, the front surface of the rotary hinge 8 is provided with a strip-shaped concave strip, the temperature indicating coating is coated in the concave strip to form a first temperature changing strip 11, the front surface of the power receiving clamp 7 is provided with a strip-shaped concave strip, and a temperature indicating coating is coated in the concave strip to form a second temperature changing strip 13; a camera 18 is fixed on the front surface of the reinforcing frame 15, and a hole for taking pictures of the lens of the camera 18 is arranged on the front surface of the reinforcing frame 15.

A temperature receiver 17 is fixed on the reinforcing frame 15, and all the temperature sensors 14 are electrically connected with the temperature receiver 17.

The reinforcing frame 15 is provided with a threading hole 19 formed by a threading hole for electrically connecting the temperature sensor 14 and the temperature receiver 17.

The first temperature-change color bar 11, the temperature-change color ring 12 and the second temperature-change color bar 13 are made of reversible temperature indicating pigment.

First contact potential 4 and receive through bolted connection between the clamp 7 to realize good electric conductivity, receive and be equipped with two contacts in the clamp 7, the upper end interval of two contacts is less than the lower extreme interval of two contacts, and the upper end interval of two contacts is less than the thickness of rotating ruler 8, and rotating ruler 8 can be around rotating hinge 6 and then the centre gripping is between the two contacts of receiving the clamp 7.

And an integral metal structure is arranged between the second connecting potential 5 and the rotating hinge 6.

The protective box 16 is an insulating shell made of plastic material and having a thickness not less than four millimeters.

The array interval of the temperature sensors 14 arrayed on the rotary ruler 8 is not more than five centimeters.

The front end of the third ceramic column 9 is provided with a reinforcing frame 15 parallel to the rotary ruler 8, the middle of the rotary ruler 8 of the reinforcing frame 15 is provided with a bending structure perpendicular to the rotary ruler 8, and the front end face of the bending structure is provided with two clamping teeth which are clamped and fixed on two sides of the rotary ruler 8, so that the structural strength of the rotary ruler 8 during deflection is improved.

The utility model discloses a theory of operation is: when the high-voltage switch is used, the first connecting potential 4 and the second connecting potential 5 are respectively connected with the power supply end and the power transmission end of the external high-voltage electricity, the rotation of the third ceramic column 9 is realized by rotating the handle 20 outside the protective box 16, the third ceramic column 9 drives the rotary ruler 8 and the reinforcing frame 15 to integrally rotate until the rotary ruler 8 rotates around the hinge 6 and is clamped between two contact pieces of the power receiving clamp 7, at the moment, the first connecting potential 4 and the second connecting potential 5 are electrically conducted due to the connection of the power receiving clamp 7 and the rotary ruler 8, further, the high-voltage switch is electrically connected, the power supply end and the power transmission end of the external high-voltage electricity are connected, at the moment, when the rotary ruler 8 is electrically conducted partially or completely, a resistance change exists, at the moment, the current action generates an electrothermal effect, as a direct action point of the electricity conduction, the electrothermal effects of the hinge 6, the power receiving clamp 7 and the rotary ruler 8 are most obvious, at the moment, and the first temperature color changing strip 11, the second connecting potential 5, the power supply end and the power transmission end of the power transmission end are connected with the power supply end and the power transmission end, The temperature-changing ring 12 and the second temperature-changing strip 13 will present the temperature change condition in a certain time, the temperature change condition at this time is recorded by the camera 18 by using fixed-frequency photography or delayed photography to most intuitively represent the electric heating effect of the hinge 6, the power receiving clamp 7 and the rotating ruler 8 and stored as the most intuitive color temperature indicating pattern, and the electric heating effect of the hinge 6, the power receiving clamp 7 and the rotating ruler 8 will be recorded by the temperature sensor 14 thereon and real-time and data temperature values will be transmitted to the temperature receiver 17 for storage through electric connection, the temperature value data can be exported and arranged in the order of time axis by connecting the computer equipment and the temperature receiver 17, the temperature values are used as reference data to judge whether the electric heating effect of the hinge 6, the power receiving clamp 7 and the rotating ruler 8 meets the operation standard (the judgment standard is determined according to the voltage value of high voltage, therefore, the determination standard is not limited herein) to complete the operation process of the automatic high-voltage switchgear temperature rise test system (the temperature sensor 14, the temperature receiver 17, and the camera 18 are all direct applications of the present application, and do not belong to the protection scope of the present application, and the circuit composition and the working principle between the temperature sensor 14 and the temperature receiver 17 are omitted).

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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", etc. 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," "second," etc. 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein; any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An automated high voltage switchgear temperature rise test system, comprising: the device comprises a first ceramic column (1), a second ceramic column (2), a base (3), a first connecting potential (4), a second connecting potential (5), a rotary hinge (6), a power receiving clamp (7), a rotary ruler (8), a third ceramic column (9), a shaft seat (10), a first temperature-variable color strip (11), a temperature-variable color ring (12), a second temperature-variable color strip (13), a temperature sensor (14), a reinforcing frame (15), a protective box body (16), a temperature receiver (17), a camera (18), a threading hole (19) and a handle (20); the method is characterized in that: two ends of the base (3) are respectively fixed with two groups of vertical first ceramic columns (1) and second ceramic columns (2), the top of each first ceramic column (1) is fixed with a first connecting potential (4) through a bolt, the top of each second ceramic column (2) is fixed with a second connecting potential (5) through a bolt, a disc-shaped rotating hinge (6) is arranged on each second connecting potential (5), a power receiving clamp (7) is arranged on each first connecting potential (4), a rotating ruler (8) is hinged on each rotating hinge (6) through a shaft lever, the length of each rotating ruler (8) needs to meet the requirement that one end of each rotating ruler (8) which can rotate around the rotating hinge (6) and is far away from the rotating hinge (6) is located in the power receiving clamp (7), the shaft lever matched with the rotating ruler (8) is concentrically and fixedly connected with one end of each third ceramic column (9), the other end of each third ceramic column (9) is matched with a shaft seat (10) of a plate-shaped structure through a bearing, a handle (20) is fixed on the same end of the third ceramic column (9) positioned on the shaft seat (10), the shaft seat (10) is fixed on the side wall of the protective box body (16) through a bolt, the base (3) is fixed on the bottom surface inside the protective box body (16) through a bolt, and the protective box body (16) serves as an integral protective shell of the device to provide high-voltage protection; the temperature sensing device is characterized in that the rotary hinge (6) and the power receiving clamp (7) are respectively provided with at least one group of temperature sensors (14), the rotary ruler (8) is provided with a plurality of groups of temperature sensors (14) which use the long edge of the rotary ruler (8) as an array direction array, the front surface of the rotary hinge (6) is provided with an annular concave ring, a temperature indicating coating is coated in the concave ring to form a temperature changing ring (12), the front surface of the rotary ruler (8) is provided with a strip-shaped concave strip, a temperature indicating coating is coated in the concave strip to form a first temperature changing strip (11), the front surface of the power receiving clamp (7) is provided with a strip-shaped concave strip, and a temperature indicating coating is coated in the concave strip to form a second temperature changing strip (13); a camera (18) is fixed on the front surface of the reinforcing frame (15), and a hole position for taking pictures of a lens of the camera (18) is formed in the front surface of the reinforcing frame (15).

2. The automated high voltage switchgear temperature rise test system of claim 1, wherein: a temperature receiver (17) is fixed on the reinforcing frame (15), and all the temperature sensors (14) are electrically connected with the temperature receiver (17).

3. The automated high voltage switchgear temperature rise test system of claim 1, wherein: the reinforcing frame (15) is provided with a threading hole (19) formed by wire holes for electrically connecting the temperature sensor (14) and the temperature receiver (17).

4. The automated high voltage switchgear temperature rise test system of claim 1, wherein: the first temperature-variable color strip (11), the temperature-variable color ring (12) and the second temperature-variable color strip (13) are all made of reversible temperature indicating pigment.

5. The automated high voltage switchgear temperature rise test system of claim 1, wherein: first contact potential (4) and receive through bolted connection between the clamp (7) to realize good electric conductivity, be equipped with two contacts in the clamp (7), the upper end interval of two contacts is less than the lower extreme interval of two contacts, and the upper end interval of two contacts is less than the thickness of rotating ruler (8), and rotating ruler (8) can be around rotating hinge (6) rotatory and centre gripping again between the two contacts of receiving the clamp (7).

6. The automated high voltage switchgear temperature rise test system of claim 1, wherein: the second connecting potential (5) and the rotating hinge (6) are of an integrated metal structure.

7. The automated high voltage switchgear temperature rise test system of claim 1, wherein: the protective box body (16) is an insulating shell which is made of plastic materials and has the thickness not less than four millimeters.

8. The automated high voltage switchgear temperature rise test system of claim 1, wherein: the array spacing of the temperature sensors (14) arrayed on the rotary ruler (8) is not more than five centimeters.

9. The automated high voltage switchgear temperature rise test system of claim 1, wherein: the front end of the third ceramic column (9) is provided with a reinforcing frame (15) parallel to the rotary ruler (8), the middle of the reinforcing frame (15) on the rotary ruler (8) is provided with a bending structure vertical to the rotary ruler (8), and the front end face of the bending structure is provided with two clamping teeth for clamping and fixing the two clamping teeth on the two sides of the rotary ruler (8).