A new five-in-one circuit breaker switch

Abstract

The utility model discloses a novel five-in-one circuit breaker switch, including frame, the left side of frame is installed with the wall -penetrating fixed pole and first insulation sensor, and the first insulation sensor is below the wall -penetrating fixed pole, and the wall -penetrating fixed pole and first insulation sensor between electrical connection has second outgoing line row, adopts the through -type current transformer, replaces traditional pillar type current transformer, the other side of second insulation sensor also installs a first insulation sensor, is used for realizing monitoring two -sided data, realizes bilateral insulation data synchronous acquisition, strengthens insulation monitoring and data integrity. The through -type current transformer is electrically connected with the wall -penetrating fixed pole and does not need independent pillar structure, significantly reduces the equipment volume and installation space demand, and the output shaft linkage control linkage shaft rotation, the direction of two is opposite, when the earthing switch closes, the disconnecting switch will open, when the disconnecting switch closes, the earthing switch will open, and the synchronous linkage control further improves the safety performance.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker switch technology, specifically relating to a novel five-in-one circuit breaker switch. Background Technology

[0002] The current transformers of traditional 40.5kV new energy five-in-one circuit breakers are pillar-type, which are large in size and heavy in weight, making installation and maintenance inconvenient, time-consuming and labor-intensive, and not very accurate. The measured data is not accurate enough, and it occupies the position of three sensors on the incoming line side, which means that it can only monitor the outgoing line side when the circuit is broken. Utility Model Content

[0003] The purpose of this invention is to provide a novel five-in-one circuit breaker switch to solve the problem of accurate monitoring data in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel five-in-one circuit breaker switch includes a frame, on the left side of which a through-wall solid-sealed pole and a first insulation sensor are installed. The first insulation sensor is located below the through-wall solid-sealed pole, and a second outgoing line is electrically connected between the through-wall solid-sealed pole and the first insulation sensor.

[0006] One side of the through-wall solid-sealed pole is electrically connected to a through-hole current transformer, and a second insulation sensor is installed below the current transformer. One side of the second insulation sensor is electrically connected to a first outgoing line.

[0007] The frame is rotatably connected to an isolating switch and a grounding switch. The isolating switch is electrically connected to the first outgoing line; the grounding switch is electrically connected to the second outgoing line.

[0008] Preferably, a surge arrester is installed below the second insulation sensor, and the surge arrester is electrically connected to the first outgoing line. The surge arrester, directly installed below the second insulation sensor, can quickly discharge transient currents generated by lightning strikes or operational overvoltages, preventing overvoltage from being conducted along the cable to weak points in the insulation. By absorbing overvoltage energy, the surge arrester reduces electromagnetic interference from transient overvoltages to the second insulation sensor, ensuring that the insulation data collected by the sensor (such as leakage current and dielectric loss) accurately reflects the equipment status. The second insulation sensor monitors the insulation status in real time, and the surge arrester provides overvoltage protection; together, they form a "monitoring-protection" closed loop, reducing the risk of equipment damage due to insulation breakdown or overvoltage.

[0009] Preferably, a mechanical linkage mechanism is installed on the side of the frame, and a control panel is provided on one side of the mechanical linkage mechanism.

[0010] Preferably, the disconnecting switch includes an output shaft and an isolating blade. The mechanical linkage mechanism is connected to the output shaft for power output. A shaft plate is fixedly mounted on the upper part of the output shaft. An insulating support rod is movably connected to the bottom of the shaft plate. An isolating blade is movably connected to one end of the insulating support rod. The top of the isolating blade is rotatably connected to a through-type current transformer.

[0011] Preferably, the grounding switch includes a linkage shaft and a grounding knife. The tail end of the output shaft is connected to a crescent connector. The small end of the crescent connector is connected to a guide rod. Both ends of the guide rod are threaded with ball-end posts. The ball-end posts are rotatably connected to the small end of the crescent connector. The ball-end posts at the bottom of the guide rod are rotatably connected to a crank plate. The crank plate is fixedly installed on one side of the linkage shaft. The grounding knife is fixedly connected to the linkage shaft.

[0012] Preferably, the mechanical linkage mechanism is further connected to a drive shaft for power output, an output plate is fixedly connected to the drive shaft, an insulating pull rod is rotatably connected to the bottom end of the output plate, a long plate is rotatably connected to one end of the insulating pull rod, an assembly plate is fixed to the first end of the through-wall type solid-sealed pole, the middle part of the long plate is rotatably connected to the assembly plate, and a conductive rod is connected to the top of the long plate, the conductive rod being slidably inserted into the through-wall type solid-sealed pole.

[0013] The technical solution of this utility model has the following beneficial effects:

[0014] 1. A through-type current transformer is adopted instead of the traditional post-type current transformer; a first insulation sensor is also installed on the other side of the second insulation sensor to monitor data from both sides, achieving synchronous acquisition of insulation data from both sides, thus enhancing insulation monitoring and data integrity. The electrical connection between the through-type current transformer and the through-wall solid-sealed pole does not require an independent support structure, significantly reducing equipment size and installation space requirements.

[0015] 2. The output shaft is linked to control the rotation of the linkage shaft. The two shafts rotate in opposite directions. When the grounding switch is closed, the disconnecting switch will open; when the disconnecting switch is closed, the grounding switch will open. This synchronous linkage control further improves safety performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is the overall front view of this utility model.

[0019] Figure 3 This is a diagram showing the evolution of the rearview mechanism of this utility model.

[0020] Figure 4 This is a partial structural schematic diagram of the present invention.

[0021] Figure 5 This is an enlarged view of section A of this utility model.

[0022] Reference numerals: 10. Frame; 11. Through-wall solid-sealed pole; 12. Through-core current transformer; 13. First insulation sensor; 14. Surge arrester; 15. Second insulation sensor; 16. First outgoing line; 17. Second outgoing line; 18. Mechanical linkage mechanism; 19. Control panel; 20. Output shaft; 201. Shaft plate; 202. Insulating support rod; 203. Isolating knife; 30. Linkage shaft; 301. Grounding knife; 40. Crescent connector; 401. Guide rod; 402. Ball head column; 403. Turning plate; 50. Drive shaft; 501. Output plate; 502. Insulating pull rod; 503. Long plate; 504. Assembly plate; 505. Conductive rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] Example 1:

[0025] refer to Figure 1 A novel five-in-one circuit breaker switch includes a frame 10. A through-wall solid-sealed pole 11 and a first insulation sensor 13 are installed on the left side of the frame 10. The first insulation sensor 13 is below the through-wall solid-sealed pole 11. A second outgoing line 17 is electrically connected between the through-wall solid-sealed pole 11 and the first insulation sensor 13.

[0026] A through-wall type solid-sealed pole 11 is electrically connected to a through-hole type current transformer 12 on one side. A second insulation sensor 15 is installed below the through-hole type current transformer 12. A first outgoing line 16 is electrically connected to one side of the second insulation sensor 15.

[0027] In the above scheme, a through-type current transformer 12 is used instead of a traditional post-type current transformer; a first insulation sensor 13 is also installed on the other side of the second insulation sensor 15 to monitor data on both sides, realize synchronous acquisition of insulation data on both sides, and enhance insulation monitoring and data integrity. The through-type current transformer 12 and the through-wall solid-sealed pole 11 do not require an independent support structure for electrical connection, which significantly reduces the equipment size and installation space requirements;

[0028] In a preferred embodiment, a surge arrester 14 is installed below the second insulation sensor 15, and the surge arrester 14 is electrically connected to the first outgoing line 16.

[0029] In this preferred embodiment, the surge arrester 14 is directly installed below the second insulation sensor 15, which can quickly discharge transient currents generated by lightning strikes or operational overvoltages, preventing overvoltages from being conducted along the cable to weak points in the insulation. By absorbing overvoltage energy, the surge arrester 14 reduces electromagnetic interference from transient overvoltages to the second insulation sensor 15, ensuring that the insulation data collected by the sensor (such as leakage current and dielectric loss) accurately reflects the equipment status. The second insulation sensor 15 monitors the insulation status in real time, and the surge arrester 14 provides overvoltage protection; together, they form a "monitoring-protection" closed loop, reducing the risk of equipment damage due to insulation breakdown or overvoltage.

[0030] refer to Figures 1-5 A disconnect switch and a grounding switch are rotatably connected to the frame 10. The disconnect switch is electrically connected to the first outgoing line 16; the grounding switch is electrically connected to the second outgoing line 17.

[0031] A mechanical linkage mechanism 18 is installed on the side of the frame 10, and a control panel 19 is provided on one side of the mechanical linkage mechanism 18;

[0032] In the above scheme, the mechanical linkage mechanism 18 refers to the device used to drive the movement of the disconnecting switch and the grounding switch. The mechanical linkage mechanism 18 includes a motor that outputs power and several gear sets and linkage structures. Here, the mechanical linkage mechanism 18 is a prior art implementation scheme, the purpose of which is to drive the movement of the disconnecting switch and the grounding switch. It can be embodied in any transmission mechanism. This invention does not describe the detailed internal structure of the mechanical linkage mechanism 18 in detail. The control panel 19 has a tripping knob, a closing knob, control buttons for the disconnecting switch and the grounding switch, indicator lights, etc. The operation of the mechanical linkage mechanism 18 is controlled through the control panel 19. Here, the through-wall solid-sealed pole 11, the through-core current transformer 12, the first insulation sensor 13, the second insulation sensor 15, the surge arrester 14, and the movement of the disconnecting switch and the grounding switch are all provided in three sets, which embodies a three-phase circuit.

[0033] Further reference Figures 1-4The disconnect switch includes an output shaft 20 and an isolating blade 203. A mechanical linkage mechanism 18 is connected to the output shaft 20 for power output. A shaft plate 201 is fixedly installed on the output shaft 20. An insulating support rod 202 is movably connected to the bottom of the shaft plate 201. An isolating blade 203 is movably connected to one end of the insulating support rod 202. The top of the isolating blade 203 is rotatably connected to a through-type current transformer 12.

[0034] In the above scheme, when the disconnecting switch is opened, when the mechanical linkage mechanism 18 drives the output shaft 20 to rotate, the shaft plate 201 deflects at an angle, thereby pushing the insulating support rod 202 outward. The point where the top of the disconnecting knife 203 contacts the through-type current transformer 12 is the rotation axis, so that the disconnecting knife 203 disengages from the first outgoing line 16 to complete the opening operation; conversely, the disconnecting knife 203 contacts the first outgoing line 16 to complete the closing operation.

[0035] refer to Figures 3-5 The grounding switch includes a linkage shaft 30 and a grounding knife 301. The tail end of the output shaft 20 is connected to a crescent connector 40. The small end of the crescent connector 40 is connected to a guide rod 401. Both ends of the guide rod 401 are threaded with ball head posts 402. The ball head posts 402 are rotatably connected to the small end of the crescent connector 40. The ball head posts 402 at the bottom of the guide rod 401 are rotatably connected to a crank plate 403. The crank plate 403 is fixedly installed on one side of the linkage shaft 30. The grounding knife 301 is fixedly connected to the linkage shaft 30.

[0036] In the above scheme, when the output shaft 20 is driven by the mechanical linkage mechanism 18 (opening operation), the crescent connector 40 will rotate downwards to press down the guide rod 401, that is, the crank plate 403 is pressed down by the guide rod 401, thereby causing the linkage shaft 30 to rotate. Here, the grounding knife 301 flips upwards and contacts the second outgoing line 17 to complete the closing operation. The output shaft 20 controls the rotation of the linkage shaft 30. The two are in opposite directions. When the grounding switch is closed, the disconnecting switch will open; when the disconnecting switch is closed, the grounding switch will open. Synchronous linkage control further improves safety performance.

[0037] More specifically, the grounding switch is opened and the isolating switch is closed; energy is stored, and once energy storage is complete, the closing knob on the control panel is turned clockwise to close the circuit breaker. The through-type current transformer 12, the first insulation sensor 13, and the second insulation sensor 15 can then begin operation for monitoring and protection.

[0038] Example 2:

[0039] refer to Figure 4The mechanical linkage mechanism 18 is also connected to a drive shaft 50 for power output. An output plate 501 is fixedly connected to the drive shaft 50. An insulating pull rod 502 is rotatably connected to the bottom end of the output plate 501. A long plate 503 is rotatably connected to one end of the insulating pull rod 502. An assembly plate 504 is fixed to the first end of the through-wall type solid-sealed pole 11. The middle part of the long plate 503 is rotatably connected to the assembly plate 504. A conductive rod 505 is connected to the top of the long plate 503. The conductive rod 505 is slidably inserted into the through-wall type solid-sealed pole 11.

[0040] In the above scheme, the power output of the drive shaft 50 is separate from the power output of the output shaft 20. When the grounding switch is open and the isolating switch is closed, the drive shaft 50 is driven to rotate through the mechanical linkage mechanism 18 during energy storage. The output plate 501 pushes the insulating pull rod 502 to move, so that the long plate 503 rotates and changes its angle at the connection part of the mounting plate 504, thereby inserting the conductive rod 505 into the through-wall solid-sealed pole 11 to achieve electrical connection, and vice versa.

[0041] The specific implementation process of this utility model is as follows:

[0042] When the output shaft 20 is driven by the mechanical linkage mechanism 18 (opening operation), the crescent connector 40 rotates downwards, pressing down the guide rod 401. That is, the crank plate 403 is pressed down by the guide rod 401, thereby causing the linkage shaft 30 to rotate. Here, the grounding knife 301 flips upwards, contacting the second output line 17 to complete the closing operation. The output shaft 20 controls the rotation of the linkage shaft 30, and the two are in opposite directions. When the grounding switch closes, the disconnecting switch will open; when the disconnecting switch closes, the grounding switch will open. The grounding switch is opened, and the disconnecting switch is closed; energy storage is performed. After energy storage is completed, the closing knob on the control panel is turned clockwise, and the circuit breaker closes. The through-type current transformer 12, the first insulation sensor 13, and the second insulation sensor 15 can start working for monitoring and protection.

[0043] When the grounding switch is opened and the isolating switch is closed, energy storage is performed. The mechanical linkage mechanism 18 drives the transmission shaft 50 to rotate, and the output plate 501 pushes the insulating pull rod 502 to move, so that the long plate 503 rotates and changes its angle at the connection part of the assembly plate 504, thereby inserting the conductive rod 505 into the through-wall solid-sealed pole 11 to achieve electrical connection.

[0044] The above embodiments are merely exemplary models of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions can be made to this utility model within its substance and scope of protection. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

[0045] In the description of this utility model, it should be noted that the terms "inner," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached circle, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, these terms indicating orientation or positional relationship should not be construed as limitations on this utility model.

[0046] In the description of this utility model, it should be further noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, these terms can refer to a fixed connection, a detachable connection, or an integral connection between components; they can also refer to a mechanical connection or an electrical connection; or they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

Claims

1. A novel five-in-one circuit breaker switch, comprising a frame (10), characterized in that: A through-wall sealed pole (11) and a first insulation sensor (13) are installed on the left side of the frame (10). The first insulation sensor (13) is below the through-wall sealed pole (11). A second outgoing line (17) is electrically connected between the through-wall sealed pole (11) and the first insulation sensor (13). One side of the through-wall solid-sealed pole (11) is electrically connected to a through-hole current transformer (12), and a second insulation sensor (15) is installed below the current transformer (12). One side of the second insulation sensor (15) is electrically connected to a first outgoing line (16). The frame (10) is rotatably connected to an isolating switch and a grounding switch. The isolating switch is electrically connected to the first outgoing line (16); the grounding switch is electrically connected to the second outgoing line (17).

2. The novel five-in-one circuit breaker switch according to claim 1, characterized in that: A surge arrester (14) is installed below the second insulation sensor (15), and the surge arrester (14) is electrically connected to the first outgoing line (16).

3. A novel five-in-one circuit breaker switch according to claim 1, characterized in that: The frame (10) is equipped with a mechanical linkage mechanism (18) on its side, and a control panel (19) is provided on one side of the mechanical linkage mechanism (18).

4. A novel five-in-one circuit breaker switch according to claim 3, characterized in that: The disconnect switch includes an output shaft (20) and an isolating blade (203). The mechanical linkage mechanism (18) is connected to the output shaft (20) for power output. A shaft plate (201) is fixedly installed on the output shaft (20). An insulating support rod (202) is movably connected to the bottom of the shaft plate (201). An isolating blade (203) is movably connected to one end of the insulating support rod (202). The top of the isolating blade (203) is rotatably connected to a through-type current transformer (12).

5. A novel five-in-one circuit breaker switch according to claim 4, characterized in that: The grounding switch includes a linkage shaft (30) and a grounding knife (301). The tail end of the output shaft (20) is connected to a crescent connector (40). The small end of the crescent connector (40) is connected to a guide rod (401). Both ends of the guide rod (401) are threaded with ball head posts (402). The ball head posts (402) are rotatably connected to the small end of the crescent connector (40). The ball head posts (402) at the bottom of the guide rod (401) are rotatably connected to a crank plate (403). The crank plate (403) is fixedly installed on one side of the linkage shaft (30). The grounding knife (301) is fixedly connected to the linkage shaft (30).

6. A novel five-in-one circuit breaker switch according to claim 3, characterized in that: The mechanical linkage mechanism (18) is also connected to a drive shaft (50) for power output. An output plate (501) is fixedly connected to the drive shaft (50). An insulating pull rod (502) is rotatably connected to the bottom end of the output plate (501). A long plate (503) is rotatably connected to one end of the insulating pull rod (502). An assembly plate (504) is fixed to the first end of the through-wall type solid-sealed pole (11). The middle part of the long plate (503) is rotatably connected to the assembly plate (504). A conductive rod (505) is connected to the top of the long plate (503). The conductive rod (505) is slidably inserted into the through-wall type solid-sealed pole (11).

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