Online monitoring device for insulation status of high voltage switchgear

Abstract

This utility model discloses an online monitoring device for the insulation status of a high-voltage distribution cabinet, including a base plate. Bolt holes corresponding to pre-set external fixing bolts are respectively opened at the four corners of the front surface of the base plate. A front-opening outer shell is fixedly connected to the center of the front surface of the base plate, and a current detection device is fixedly connected to the center of the front surface of the base plate. A lead wire is fixedly connected to the inlet end of the current detection device, and a ground wire is fixedly connected to the outlet end of the current detection device. Buckles are respectively snapped onto the upper and lower ends of the left and right sides of the outer shell, and a sealing cover is fixedly connected to the front end of the buckles. A mounting groove is opened on the left side of the upper surface of the outer shell, and a buzzer is fixedly connected inside the mounting groove. This device can monitor for leakage in the distribution cabinet, alerting personnel when leakage occurs. This prevents personnel from operating the distribution cabinet without knowledge of the situation, thus avoiding electric shock. It also alerts personnel to disconnect the power to the distribution cabinet, preventing damage to components and losses.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for power distribution cabinets, specifically to an online monitoring device for the insulation status of high-voltage power distribution cabinets. Background Technology

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), and are the final stage equipment of the power distribution system.

[0003] A distribution cabinet is a general term for a motor control center. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits; motor control centers are used in situations where the load is concentrated and there are more circuits. They distribute the electrical energy from a circuit of the upstream power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the load.

[0004] The existing distribution cabinets lack leakage current safety monitoring devices, which makes it easy for staff to be electrocuted when they are repairing the distribution cabinets. Furthermore, leakage current in the distribution cabinets may damage internal components and affect the normal use of the distribution cabinets. Therefore, we propose an online monitoring device for the insulation status of high-voltage distribution cabinets. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an online monitoring device for the insulation status of high-voltage distribution cabinets. This device can monitor the leakage of the distribution cabinet and alert the staff when leakage occurs. This can prevent the staff from operating the distribution cabinet under unknown circumstances and causing electric shock. It can also prompt the staff to disconnect the power to the distribution cabinet to prevent damage to components and losses. This can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online monitoring device for the insulation status of a high-voltage distribution cabinet, comprising a base plate, bolt holes corresponding to externally preset fixing bolts being opened at the four corners of the front surface of the base plate, a front-end open outer shell being fixedly connected to the center of the front surface of the base plate, and a current detection device being fixedly connected to the center of the front surface of the base plate, a lead wire being fixedly connected to the inlet end of the current detection device, and a ground wire being fixedly connected to the outlet end of the current detection device, buckles being snapped at the upper and lower ends of the left and right sides of the outer shell, and a sealing cover being fixedly connected to the front end of the buckles, and an installation groove being opened on the left side of the upper surface of the outer shell, and a buzzer being fixedly connected inside the installation groove;

[0007] Wherein: the input terminal of the current detection device is connected to the lead wire and the ground wire respectively, and the output terminal of the current detection device is electrically connected to the input terminal of the buzzer.

[0008] Furthermore, it also includes a rubber sleeve and a shielding sleeve. The rubber sleeve is fitted onto the outer surface of the ground wire, and the shielding sleeve is fitted onto the outer surface of the lead wire. The rubber sleeve and shielding sleeve can prevent leakage current or interference current from affecting the monitoring situation, thereby making the use of the monitoring equipment more stable and convenient.

[0009] Furthermore, it also includes a sealing gasket, which has a ring-shaped structure and is fixedly connected to the front end of the inner surface of the housing. The front surface of the sealing gasket is in contact with the rear side of the sealing cover. The sealing gasket can effectively prevent dust and debris from entering the housing and affecting the monitoring results of the current detection device, thereby making the use of the monitoring equipment more stable.

[0010] Furthermore, it also includes a pad, which is an insulating plate. The pad is fixedly connected to the rear side of the base plate, and the rear side of the pad has anti-slip grooves arranged in a linear array. The pad not only prevents slipping but also provides insulation, which can prevent excessive leakage current in the distribution cabinet from damaging the monitoring equipment, thereby making the use of the monitoring equipment safer and more stable.

[0011] Furthermore, it also includes a sealing ring, which is snapped into the inside of the wire hole opened on the side surface of the housing, and the inner surface of the sealing ring is in contact with the outer surface of the corresponding rubber sleeve and shielding sleeve; the sealing ring can isolate the inside and outside of the housing, effectively preventing dust and debris from entering the inside of the housing and affecting the monitoring results of the current detection device, thereby making the use of the monitoring equipment more stable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This online monitoring device for the insulation status of high-voltage switchgear has the following advantages:

[0013] 1. It can monitor the leakage of the power distribution cabinet and alert the staff when leakage occurs. This can prevent staff from operating the power distribution cabinet without knowing the situation and causing electric shock. It can also prompt the staff to disconnect the power distribution cabinet to prevent damage to components and losses.

[0014] 2. The rubber sleeve and shielding sleeve can prevent leakage or interference from affecting the monitoring, thus making the monitoring equipment more stable and convenient to use.

[0015] 3. The sealing gasket effectively prevents dust and debris from entering the casing and affecting the monitoring results of the current detection device, thus making the monitoring equipment more stable in use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure from the rear view of this utility model.

[0019] In the diagram: 1. Base plate, 2. Outer shell, 3. Sealing cover, 4. Buckle, 5. Rubber sleeve, 6. Shielding sleeve, 7. Buzzer, 8. Sealing gasket, 9. Current detection device, 10. Lead wire, 11. Ground wire, 12. Pad, 13. Sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This embodiment provides a technical solution: an online monitoring device for the insulation status of a high-voltage distribution cabinet, including a base plate 1. The four corners of the front surface of the base plate 1 are respectively provided with bolt holes corresponding to the external preset fixing bolts. The front open shell 2 is fixedly connected to the middle of the front surface of the base plate 1, and a current detection device 9 is fixedly connected to the middle of the front surface of the base plate 1. The inlet end of the current detection device 9 is fixedly connected with a lead wire 10, and the outlet end of the current detection device 9 is fixedly connected with a ground wire 11. The upper and lower ends of the left and right sides of the shell 2 are respectively snapped with buckles 4, and the front end of the buckles 4 is fixedly connected with a sealing cover 3. The left side of the upper surface of the shell 2 is provided with an installation groove, and a buzzer 7 is fixedly connected inside the installation groove.

[0022] Wherein: the input terminal of the current detection device 9 is connected to the lead wire 10 and the ground wire 11 respectively, and the output terminal of the current detection device 9 is electrically connected to the input terminal of the buzzer 7.

[0023] In this embodiment, a rubber sleeve 5 and a shielding sleeve 6 are also included. The rubber sleeve 5 is fitted onto the outer surface of the ground wire 11, and the shielding sleeve 6 is fitted onto the outer surface of the lead wire 10. The rubber sleeve 5 and the shielding sleeve 6 can prevent leakage current or interference current from affecting the monitoring situation, thereby making the use of the monitoring equipment more stable and convenient.

[0024] In this embodiment, a sealing gasket 8 is also included. The sealing gasket 8 has a ring structure and is fixedly connected to the front end of the inner surface of the housing 2. The front surface of the sealing gasket 8 is in contact with the rear side of the sealing cover 3. The sealing gasket 8 can effectively prevent dust and debris from entering the interior of the housing 2 and affecting the monitoring results of the current detection device 9, thereby making the use of the monitoring equipment more stable.

[0025] In this embodiment, a pad 12 is also included. The pad 12 is an insulating plate and is fixedly connected to the rear side of the base plate 1. The rear side of the pad 12 has anti-slip grooves arranged in a linear array. The pad 12 not only prevents slipping but also acts as an insulator, which can prevent the leakage current of the power distribution cabinet from being too large and causing damage to the monitoring equipment, thereby making the use of the monitoring equipment safer and more stable.

[0026] In this embodiment, a sealing ring 13 is also included. The sealing ring 13 is snapped into the inside of the wire hole opened on the side surface of the housing 2, and the inner surface of the sealing ring 13 is in contact with the outer surface of the corresponding rubber sleeve 5 and shielding sleeve 6. The sealing ring 13 can isolate the inside and outside of the housing 2, effectively preventing dust and debris from entering the inside of the housing 2 and affecting the monitoring results of the current detection device 9, thereby making the use of the monitoring equipment more stable.

[0027] The working principle of the online monitoring device for insulation status of high-voltage distribution cabinet provided by this utility model is as follows: The base plate 1 is fixed by external preset bolts, and then the end of the lead wire 10 is fixed to different areas inside the distribution cabinet. Then the ground wire 11 is grounded. When the distribution cabinet has a leakage phenomenon, the current flows through the lead wire 10 and through the current detection device 9 and the ground wire 11 into the ground. The current detection device 9 monitors whether the distribution cabinet is leaking by judging the current situation. When there is a leakage, the buzzer 7 will sound an alarm, thereby reminding the staff to inspect and maintain the distribution cabinet.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An online monitoring device for the insulation status of high-voltage switchgear, characterized in that: Includes a base plate (1), with bolt holes corresponding to the external preset fixing bolts at the four corners of the front surface of the base plate (1), a front-open outer shell (2) is fixedly connected to the middle of the front surface of the base plate (1), and a current detection device (9) is fixedly connected to the middle of the front surface of the base plate (1), with a lead wire (10) fixedly connected to the inlet end of the current detection device (9), and a ground wire (11) fixedly connected to the outlet end of the current detection device (9), with buckles (4) snapped at the top and bottom ends of the left and right sides of the outer shell (2), and a sealing cover (3) fixedly connected to the front end of the buckle (4), and an installation groove is opened on the left side of the upper surface of the outer shell (2), with a buzzer (7) fixedly connected inside the installation groove; Wherein: the input end of the current detection device (9) is connected to the lead wire (10) and the ground wire (11) respectively, and the output end of the current detection device (9) is electrically connected to the input end of the buzzer (7).

2. The online monitoring device for insulation status of high-voltage switchgear according to claim 1, characterized in that: It also includes a rubber sleeve (5) and a shielding sleeve (6), wherein the rubber sleeve (5) is fitted onto the outer surface of the ground wire (11) and the shielding sleeve (6) is fitted onto the outer surface of the lead wire (10).

3. The online monitoring device for the insulation status of high-voltage switchgear according to claim 1, characterized in that: It also includes a sealing gasket (8), which is a ring structure. The sealing gasket (8) is fixedly connected to the front end of the inner surface of the outer shell (2), and the front surface of the sealing gasket (8) is in contact with the rear side of the sealing cover (3).

4. The online monitoring device for insulation status of high-voltage switchgear according to claim 1, characterized in that: It also includes a pad (12), which is an insulating plate. The pad (12) is fixedly connected to the rear side of the base plate (1), and the rear side of the pad (12) is provided with anti-slip grooves in a linear array.

5. The online monitoring device for insulation status of high-voltage switchgear according to claim 1, characterized in that: It also includes a sealing ring (13), which is snapped into the inside of the wire hole opened on the side surface of the housing (2), and the inner surface of the sealing ring (13) is in contact with the outer surface of the corresponding rubber sleeve (5) and shielding sleeve (6).

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