CN219247315U

CN219247315U - 10KV air insulation high-voltage metering cabinet

Info

Publication number: CN219247315U
Application number: CN202222751976.5U
Authority: CN
Inventors: 鄢希锋; 陆寒明; 许永军; 姚光; 欧等财; 卢金权; 曾荣华; 陈立向; 陈卫涛; 杨德金; 谭敏; 孙欣欣; 王晓波; 杨先林; 王俊; 刘志豪
Original assignee: Cyg Electric Co ltd
Current assignee: Cyg Electric Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-06-23
Anticipated expiration: 2032-10-19

Abstract

The utility model provides a 10KV air insulation high-voltage metering cabinet which can effectively reduce engineering construction cost and improve safety. The cabinet body is hinged with a first front door and a second front door which correspond to the high-voltage chamber and the metering chamber, the cabinet body is internally provided with a high-voltage transformer and a high-voltage current transformer, the high-voltage transformer is connected with a ground bar, the upper parts of the left side wall and the right side wall of the cabinet body are respectively provided with a wire inlet and a wire outlet, the wire inlet copper bar and the wire outlet copper bar which are connected with the high-voltage current transformer respectively correspond to the wire inlet and the wire outlet to extend out of the cabinet body, the high-voltage transformer is connected with the wire inlet copper bar through a fuse wire, an electromagnetic lock is arranged on the first front door, the cabinet body is internally provided with a first micro switch and a second micro switch which are respectively electrically connected with the high-voltage current transformer, and the first micro switch and the second micro switch are respectively triggered and linked with the electromagnetic lock and the second front door. The utility model is applied to the field of electrical equipment.

Description

10KV air insulation high-voltage metering cabinet

Technical Field

The utility model relates to the field of electrical equipment, in particular to a 10KV air insulation high-voltage metering cabinet.

Background

The high-voltage metering cabinet is formed by independently combining a mutual inductor chamber and a metering chamber, and is placed between the high-voltage cabinet and the high-voltage cabinet in use, wherein the power direction of the high-voltage cabinet is in front, and the user direction of the high-voltage cabinet is behind. The common high-voltage metering cabinet is characterized in that the main busbar is connected to the upper contact box through the copper bar, the lower contact box is connected to the rear lower side of the cabinet body through the copper bar, and is connected to the adjacent cabinet through the contact copper bar, and the copper bar in the adjacent cabinet is connected to the main busbar position at the rear upper part of the other side high-voltage cabinet through a handcart or directly turning up a cable, so that equipment such as a PT cabinet or a busbar lifting cabinet is needed to be realized, and the engineering construction cost is increased intangibly. When maintaining the measuring cabinet, the high-voltage wire inlet power supply is required to be cut off, but the existing measuring cabinet is not provided with an electrified prompt design, so that the risk of electric shock exists once a maintainer misoperates the measuring cabinet, the door of the transformer chamber and the door of the measuring chamber are independently arranged, the transformer chamber and the door of the measuring chamber are required to be opened or closed respectively, the maintenance process is more complex, and the risk of electric shock of the maintainer is increased.

Disclosure of Invention

The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing the 10KV air insulation high-voltage metering cabinet which does not need to be additionally provided with a bus lifting cabinet and the like so as to reduce engineering construction cost, and the high-voltage chamber and the metering chamber door are mutually linked with the power-off function of the adjacent high-voltage cabinet, so that the safety is improved.

The technical scheme adopted by the utility model is as follows: the utility model comprises a cabinet body consisting of a ground row, a high-voltage chamber and a metering chamber, wherein a first front door and a second front door corresponding to the high-voltage chamber and the metering chamber are hinged to the cabinet body, a high-voltage transformer and a high-voltage current transformer are further arranged in the cabinet body, the high-voltage transformer is connected with the ground row, a wire inlet and a wire outlet are respectively arranged on the left side wall and the right side wall of the cabinet body, a wire inlet copper bar and a wire outlet copper bar which are respectively connected with the high-voltage current transformer are respectively corresponding to the wire inlet and the wire outlet and are respectively connected with the wire inlet copper bar, an electromagnetic lock is arranged on the first front door, a first micro switch and a second micro switch which are respectively electrically connected with the high-voltage current transformer are respectively arranged in the cabinet body, and the first micro switch and the second micro switch are respectively connected with the electromagnetic lock and the second front door in a linkage way.

According to the technical scheme, the copper bar positions of the wire inlet and the wire outlet are arranged at the top of the cabinet body through the wire inlet and the wire outlet which are arranged at the upper parts of the left side wall and the right side wall of the cabinet body, so that the wire inlet and the wire outlet are limited to be arranged at the upper part of the cabinet body, and when the wire inlet and the wire outlet are matched with adjacent high-voltage cabinets, equipment such as a PT cabinet or a bus lifting cabinet is not required to be additionally arranged to optimize the discharge of the wire, and the engineering construction cost is effectively reduced; meanwhile, through linkage between the electromagnetic lock and the first micro switch, when a maintainer cuts off the power supply of the utility model, the electromagnetic lock is started, and the first micro switch can be linked and cut off the power supply of an adjacent incoming line high-voltage cabinet, so that the operation safety is ensured, and the false entering of a high-voltage interval and a safety accident are avoided; and meanwhile, after the second front door is opened, the second micro switch is linked with the power supply of the high-voltage cabinet at the adjacent outlet end, and a user measures power failure to prevent electricity theft during maintenance. Therefore, the utility model does not need to add bus lifting cabinets and the like, thereby reducing engineering construction cost, and the high-voltage chamber and metering chamber door are mutually linked with the power-off function of the adjacent high-voltage cabinet, thereby improving safety.

Preferably, the first micro-gap switch with the second micro-gap switch structure is unanimous, all includes unable adjustment base, sensor, trigger lever and contact wheel, the sensor pass through unable adjustment base with the cabinet body is connected, the trigger lever lower extreme is connected with the sensor rotation, the upper end corresponds the sensor outwards stretches out, contact wheel roll connection with the trigger lever top, wherein the trigger lever inboard with the trigger piece department of meeting of sensor, contact wheel with the department of meeting of corresponding electromagnetic lock and second qianmen inner wall. According to the technical scheme, after the electromagnetic lock is opened, the force originally applied to the contact wheel disappears, the trigger rod rotates outwards and leaves the trigger piece, and the first micro switch controls the high-voltage cabinet at the inlet wire end to be powered off; similarly, when the second front door is opened, the inner wall of the second front door is far away from the contact wheel on the second micro switch, so that the high-voltage cabinet at the outlet end is controlled to be powered off by the second micro switch, and the power-off operation is realized, so that the safety is ensured, and meanwhile, the electricity stealing in the maintenance or waiting for the maintenance process is effectively avoided.

Preferably, the metering chamber is further provided with a metering panel, and the metering chamber comprises a circuit board, an electric energy meter, a negative control meter, a control module and a card inserting port, wherein a transparent observation plate and a card inserting hole are formed in the second front door, the transparent observation plate corresponds to the electric energy meter and the negative control meter, and the card inserting hole corresponds to the card inserting port. According to the technical scheme, the user can observe data such as electricity consumption and the like on the premise of not opening the second front door through the transparent observation plate, the card inserting holes are added to be matched with the prepaid card on the hand of the user, and the card inserting is powered on under the condition that the metering chamber is not opened.

Preferably, a plurality of mounting brackets are further arranged on the bottom and the side walls of the cabinet body, a plurality of positioning holes are uniformly distributed on the mounting brackets, the mounting brackets are fixedly arranged inside the cabinet body through the positioning holes at the left end and the right end, and the high-voltage transformer and the high-voltage current transformer are detachably arranged in the cabinet body through the mounting brackets. According to the technical scheme, the installation supports are arranged in the cabinet body, so that the arrangement of parts in the cabinet body is more flexible, the installation requirements of transformers with different manufacturers and different parameters are met, and the applicability and the practicability of the intelligent cabinet are greatly improved.

Preferably, the cabinet body is further provided with a temperature and humidity sensor and a heating plate which are electrically connected with each other, wherein the temperature and humidity sensor and the heating plate are located at the high-pressure chamber, and the temperature and humidity sensor and the heating plate are fixed through the mounting bracket. According to the technical scheme, the temperature and humidity sensor is matched with the heating plate, so that the temperature and humidity sensor can adapt to high and low temperature or humid weather, and the applicability of the temperature and humidity sensor is further improved.

Preferably, a high-voltage electrified display electrically connected with the electromagnetic lock is further arranged on the outer side wall of the first front door. According to the technical scheme, maintenance personnel or users can more intuitively know the electrification condition of the cabinet body through the high-voltage electrification display, and the safety of the utility model is further improved.

Finally, the back of the cabinet body is also hinged with an access back door, and an electronic lock electrically connected with the electromagnetic lock is arranged on the access back door. According to the technical scheme, the overhaul rear door is opened, so that parts with larger volume in the cabinet body, such as fuses, can be overhauled or replaced.

Drawings

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a first axial side schematic view of the present utility model;

FIG. 3 is a second axial side elevational schematic of the present utility model;

fig. 4 is a schematic structural view of the first micro switch and the second micro switch.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the utility model comprises a cabinet body 4 composed of a ground bar 1, a high-voltage chamber 2 and a metering chamber 3, wherein a first front door 5 and a second front door 6 corresponding to the high-voltage chamber 2 and the metering chamber 3 are hinged on the cabinet body 4, a high-voltage transformer 7 and a high-voltage current transformer 8 are also arranged in the cabinet body 4, the high-voltage transformer 7 is connected with the ground bar 1, a wire inlet 9 and a wire outlet 10 are respectively arranged on the left and right side walls of the cabinet body 4, a wire inlet copper bar 11 and a wire outlet copper bar 12 which are respectively connected with the high-voltage current transformer 8 are respectively corresponding to the wire inlet 9 and the wire outlet 10 and are detected out of the cabinet body 4, the high-voltage transformer 7 is connected with the wire inlet copper bar 11 through a fuse 13, a lock 14 is arranged on the first front door 5, a micro-switch micro-motion switch 16 and a micro-motion switch 16 are respectively arranged in the cabinet body 4 and are respectively corresponding to the high-voltage chamber 2 and the metering chamber 3, and the positions of the micro-switch 16 are respectively connected with the second micro-switch micro-motion switch 16 and the micro-motion switch 16. The metering cabinet is generally arranged between an incoming high-voltage cabinet (a power end) and an outgoing high-voltage cabinet (a user end), the incoming end and the outgoing end of the traditional metering cabinet are respectively arranged at the upper end or the lower end of the metering cabinet, in order to prevent the cable from being bent too many times, thereby causing potential safety hazards caused by too many heating points of the cable, equipment such as a lifting handcart or a bus lifting cabinet needs to be additionally arranged for realizing, in order to simplify the structure of the whole equipment and reduce the cost of engineering construction, the incoming port 9 and the outgoing port 10 are arranged at the upper part of the cabinet body 4, so as to adapt to the wiring position requirement in power supply structural equipment. In this embodiment, the structures of the first micro switch 15 and the second micro switch 16 are consistent, each of them includes a fixed base 17, a sensor 18, a trigger lever 19 and a contact wheel 20, the sensor 18 is connected with the cabinet body 4 through the fixed base 17, the lower end of the trigger lever 19 is rotationally connected with the sensor 18, the upper end of the trigger lever corresponds to the sensor 18 and protrudes outwards, the contact wheel 20 is in rolling connection with the top of the trigger lever 19, where the inner side of the trigger lever 19 is connected with a trigger piece of the sensor 18, and the contact wheel 20 is connected with the corresponding inner wall of the electromagnetic lock 14 and the second front door 6. The electromagnetic lock 14 is used for controlling the opening and closing of the first front door 5, when a maintainer or a user needs to open the first front door 5, the power supply of the utility model needs to be cut off, the electromagnetic lock 14 senses that the cabinet body 4 is completely uncharged and then is opened, the first front door 5 can be smoothly opened, meanwhile, the triggering rod 19 of the first micro switch 15 is loosened, and the sensor 18 controls the high-voltage cabinet at the inlet end to be powered off, so that the safety of the maintainer or the user is further protected, and electric shock is avoided; the contact wheel 20 in the second micro switch 16 is generally connected to the inner side wall of the second front door 6, when the second front door 6 is opened, the sensor 18 controls the high-voltage cabinet at the outlet end to be powered off, so as to cut off the power supply to the user, thereby not only avoiding the co-workers damaging the user equipment due to unstable voltage and current caused by maintenance, but also effectively avoiding the power theft during maintenance or waiting for maintenance.

In the present utility model, the metering chamber 3 is further provided with a metering panel 21, which includes a circuit board, an electric energy meter 22, a negative control meter 23, a control module 24 and a card inserting port 25, the second front door 6 is provided with a transparent observation board 26 and a card inserting hole 27, the transparent observation board 26 corresponds to the electric energy meter 22 and the negative control meter 23, and the card inserting hole 27 corresponds to the card inserting port 25. The user can observe the real-time electricity consumption condition and the negative electricity condition through the transparent observation board 26, and can pay fees, purchase electricity and the like by inserting the prepaid card into the card inserting port 25 from the card inserting hole 27 without opening the second front door 6. The novel high-voltage transformer cabinet is characterized in that a plurality of mounting brackets 28 are further arranged on the bottom and the side wall of the cabinet body 4, a plurality of positioning holes 29 are uniformly distributed in the mounting brackets 28, the novel high-voltage transformer cabinet is fixedly arranged inside the cabinet body 4 through the positioning holes 29 positioned at the left end and the right end, the high-voltage transformer 7 and the high-voltage current transformer 8 are detachably arranged in the cabinet body 4 through the mounting brackets 28, and the difference exists between the specification and the size of the internal components such as the high-voltage current transformer 8, the high-voltage transformer 7, the temperature and humidity sensor 30, the heating plate 31 and the like produced by different manufacturers, so that the mounting requirements of parts with various specifications can be perfectly adapted through the mounting brackets 28. The temperature and humidity sensor 30 and the heating plate 31 which are electrically connected with each other are further arranged in the cabinet body 4 and located at the position of the high-pressure chamber 2, the temperature and humidity sensor 30 and the heating plate 31 are fixed through the mounting bracket 28, and when the utility model is required to be used in low-temperature or humid environments, the adaptability of the utility model is improved through the cooperation between the temperature and humidity sensor 30 and the heating plate 31. The high voltage live display 32 electrically connected with the electromagnetic lock 14 is also disposed on the outer side wall of the first front door 5, so that a user or a serviceman can more intuitively observe whether the cabinet body 4 is electrified, thereby improving the operation safety, and in this embodiment, the high voltage live display 32 can be an indicator light or a liquid crystal display or the like. The first front door 5 is further provided with a plurality of observation holes 33 arranged in an array, so that maintenance personnel can simply observe the condition inside the cabinet body 4 under the condition of no power failure, know the internal condition in advance, and make a maintenance strategy and the like. The back of the cabinet body 4 is further hinged with an access back door 34, the access back door 34 is provided with an electronic lock electrically connected with the electromagnetic lock 14, and as the sizes of the first front door 5 and the second front door 6 are relatively smaller, large-size parts cannot be maintained and replaced, the access back door 34 is arranged on the back side of the cabinet body 4, a better access space can be provided for maintenance staff, the maintenance or replacement of large parts such as a fuse 13 and the like can be carried out, and the electronic lock is synchronous with the electromagnetic lock 14, so that the safety of the maintenance staff is further protected.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a 10KV air insulation high-voltage metering cabinet, includes cabinet body (4) that comprises ground row (1), high-voltage chamber (2) and measuring chamber (3), articulated on cabinet body (4) have correspond high-voltage chamber (2) with first qianmen (5) and second qianmen (6) of measuring chamber (3) still be provided with high-voltage transformer (7) and high-voltage current transformer (8) in cabinet body (4), high-voltage transformer (7) with ground row (1) are connected, its characterized in that: the novel high-voltage transformer cabinet is characterized in that a wire inlet (9) and a wire outlet (10) are respectively arranged on the upper portions of the left side wall and the right side wall of the cabinet body (4), a wire inlet copper bar (11) and a wire outlet copper bar (12) which are connected with the high-voltage current transformer (8) are respectively corresponding to the wire inlet (9) and the wire outlet (10) which are extended out of the cabinet body (4), the high-voltage transformer (7) is connected with the wire inlet copper bar (11) through a fuse wire (13), an electromagnetic lock (14) is arranged on the first front door (5), and a first micro switch (15) and a second micro switch (16) which are respectively connected with the high-voltage current transformer (8) are respectively arranged in the cabinet body (4) and correspond to the positions of the high-voltage chamber (2) and the measuring chamber (3), and the first micro switch (15) and the second micro switch (16) are respectively triggered and linked with the electromagnetic lock (14) and the second front door (6).

2. The 10KV air insulation high voltage metering cabinet according to claim 1, wherein: the first micro-gap switch (15) with second micro-gap switch (16) structure is unanimous, all includes unable adjustment base (17), sensor (18), trigger lever (19) and contact wheel (20), sensor (18) pass through unable adjustment base (17) with cabinet body (4) are connected, trigger lever (19) lower extreme and sensor (18) rotate to be connected, the upper end corresponds sensor (18) outwards come out, contact wheel (20) roll connection with trigger lever (19) top, wherein trigger lever (19) inboard with the trigger piece junction of sensor (18), contact wheel (20) with the department of meeting of corresponding electromagnetic lock (14) and second qianmen (6) inner wall.

3. The 10KV air insulation high voltage metering cabinet according to claim 2, wherein: still be provided with in the measurement room (3) and measure panel (21), including circuit board, electric energy meter (22), burden accuse table (23), control module (24) and card inserting port (25) be provided with transparent observation board (26) and card inserting hole (27) on second qianmen (6), transparent observation board (26) with electric energy meter (22) with burden accuse table (23) are corresponding, card inserting hole (27) with card inserting port (25) are corresponding.

4. A 10KV air insulated high voltage metering cabinet according to claim 3, characterized by: still be provided with a plurality of installing support (28) on cabinet body (4) bottom and the lateral wall, evenly distributed has a plurality of locating holes (29) on installing support (28), and it is itself through being located locating hole (29) at both ends about fixed setting is in cabinet body (4) inside, high voltage transformer (7) with high voltage current transformer (8) are all through installing support (28) detachable setting is in cabinet body (4).

5. The 10KV air insulation high voltage metering cabinet according to claim 4, wherein: the temperature and humidity sensor (30) and the heating plate (31) which are electrically connected with each other are further arranged in the cabinet body (4) and located at the position of the high-pressure chamber (2), and the temperature and humidity sensor (30) and the heating plate (31) are fixed through the mounting bracket (28).

6. The 10KV air insulation high voltage metering cabinet according to claim 5, wherein: the outer side wall of the first front door (5) is also provided with a high-voltage electrified display (32) electrically connected with the electromagnetic lock (14).

7. The 10KV air insulation high voltage metering cabinet according to claim 6, wherein: and a plurality of observation holes (33) which are arranged in an array are also formed in the first front door (5).

8. The 10KV air insulation high voltage metering cabinet of claim 7, wherein: the back of the cabinet body (4) is also hinged with an access back door (34), and the access back door (34) is provided with an electronic lock electrically connected with the electromagnetic lock (14).