Ring main unit

Abstract

The utility model discloses a ring main unit which comprises a ring main unit body, an air box is arranged in the ring main unit body, and an isolating mechanism used for isolating a circuit and a grounding mechanism used for ensuring safe grounding of the isolating circuit are arranged in the air box. The grounding mechanism comprises a grounding switch, an operation motor, a monitoring module and a communication module, the communication module is used for receiving a remote instruction of the remote control system, the operation motor is used for driving the grounding switch to perform opening and closing operation according to the remote instruction, and the monitoring module is used for monitoring the current state of the grounding switch in real time; and the state information is fed back to the remote control system through the communication module. According to the utility model, the isolation mechanism and the grounding mechanism are introduced to realize remote isolation and safe grounding operation of the circuit, so that the operation efficiency and the safety are improved, and the time and the labor cost are saved.

Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of high-voltage power distribution equipment technology, and in particular to a ring main unit. Background Technology

[0002] In power systems, ring main units (RMMs) are critical power distribution equipment. Circuit isolation and grounding switch operation are essential components of their function, crucial for ensuring the stable operation of the power system and the safety of personnel. However, existing RMMs still have some shortcomings in circuit isolation and grounding operation. For example, some RMMs still operate in a relatively traditional manner, requiring manual on-site operation of the grounding switch. This not only increases the workload of operators but may also lead to safety accidents during operation. Summary of the Invention

[0003] In view of the above-mentioned problems, this utility model proposes a ring main unit that can realize remote isolation and safe grounding of the ring main unit circuit, thereby improving operational efficiency and safety, and saving time and labor costs.

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

[0005] This utility model proposes a ring main unit, including a ring main unit body. An air box is installed inside the ring main unit body. The air box contains an isolation mechanism for isolating circuits and a grounding mechanism for ensuring the safe grounding of the isolated circuits. The grounding mechanism includes a grounding switch, an operating motor, a monitoring module, and a communication module. The communication module is used to receive remote commands from a remote control system. The operating motor is used to drive the grounding switch to perform opening and closing operations according to the remote commands. The monitoring module is used to monitor the current status of the grounding switch in real time and feed back the status information to the remote control system through the communication module.

[0006] Furthermore, a circuit breaker mechanism is installed inside the gas box. The circuit breaker mechanism is located on one side of the isolation mechanism. When a fault occurs in the line, the circuit breaker mechanism cuts off the circuit, the isolation mechanism isolates the circuit, and the grounding switch is in the open state.

[0007] Furthermore, the gas box is equipped with a detection module, which includes a first sensor assembly for monitoring the status of the grounding switch.

[0008] Furthermore, the detection module includes a second sensor assembly for detecting and monitoring the temperature and pressure inside the gas box.

[0009] Furthermore, a ring main unit panel is provided on one side of the gas box. The ring main unit panel is provided with a tripping operation hole and a closing operation hole for the grounding switch. The tripping operation hole and the closing operation hole are used to ground the ring main unit.

[0010] Furthermore, the ring main unit panel is equipped with indicator lights to display the current status of the ring main unit.

[0011] Furthermore, the ring main unit panel is equipped with an operating handle connected to the grounding switch, which is used to manually control the grounding switch to perform opening and closing operations.

[0012] Furthermore, the circuit breaker mechanism includes a circuit breaker for controlling current path and interruption.

[0013] Furthermore, the ring main unit is equipped with a control circuit, which is connected to the isolation mechanism, the circuit breaker mechanism and the grounding mechanism respectively.

[0014] Furthermore, the ring main unit is also provided with a base for supporting the gas box.

[0015] The beneficial effects of this utility model include:

[0016] 1. By introducing a communication module and an operating motor, remote opening and closing operations of the grounding switch are realized. This means that operators do not need to be physically present on-site for manual operation, thus greatly reducing safety risks during operation. Especially in emergency situations, remote operation can respond quickly, improve work efficiency, and reduce safety accidents that may be caused by delays or errors in manual operation.

[0017] 2. It can detect the current status (open or closed) of the grounding switch in real time and feed the status information back to the remote control system through the communication module. This allows power management personnel to keep abreast of the operating status of the ring main unit and take appropriate measures when necessary to ensure the stable operation of the power system and the safety of personnel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall structural diagram of the ring main unit provided by this utility model;

[0020] Figure 2This is a partial front view of the ring main unit provided by this utility model;

[0021] Reference numerals: Gas box 110; Circuit breaker mechanism 120; Isolation mechanism 130; Grounding switch 210; Operating motor 220; Monitoring module 230; Ring main unit panel 140; Base 150. Detailed Implementation

[0022] The embodiments described in this utility model are for the purpose of more clearly illustrating the technical solution of this utility model, and do not constitute a limitation on the technical solution provided by this utility model. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solution provided by this utility model is also applicable to similar technical problems.

[0023] Furthermore, the terms “including” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating directions or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] These terms are primarily used to better describe the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the terms mentioned above may be used to indicate other meanings besides orientation or positional relationships; for example, the term "above" may in some cases be used to indicate a certain dependency or connection relationship.

[0026] Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0027] Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0028] Unless otherwise stated, the term "multiple" means two or more.

[0029] In this embodiment of the disclosure, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0031] In power systems, ring main units (RMMs) are critical distribution equipment, and circuit isolation and grounding switch operation are essential components of their function, crucial for ensuring the stable operation of the power system and the safety of personnel. However, existing RMMs still have some shortcomings in circuit isolation and grounding operation. Specifically, some RMMs still use traditional operating methods, relying on manual on-site operation of the grounding switch. This operating mode not only significantly increases the physical burden on operators and reduces work efficiency, but also harbors potential safety risks during operation, potentially threatening the lives of operators.

[0032] In view of the above-mentioned problems, this utility model proposes a ring main unit, including a ring main unit body, an air box inside the ring main unit body, an isolation mechanism for isolating the circuit, and a grounding mechanism for ensuring the safe grounding of the isolated circuit. The grounding mechanism includes a grounding switch, an operating motor, a monitoring module, and a communication module. The communication module can receive remote commands from a remote control system, the operating motor can drive the grounding switch to open and close operations according to the remote commands, and the monitoring module can monitor the current status of the grounding switch in real time and feed the status information back to the remote control system through the communication module. This utility model, by introducing the isolation mechanism and the grounding mechanism, realizes remote isolation and safe grounding of the circuit. Simultaneously, it can detect the current status (open or closed) of the grounding switch in real time and feed the status information back to the remote control system through the communication module, so that power management personnel can monitor the operating status of the ring main unit at any time and take appropriate measures when necessary to ensure the stable operation of the power system and the safety of personnel.

[0033] The present invention will be described in detail through the following embodiments.

[0034] See Figure 1 , Figure 1 This is an overall structural diagram of the ring main unit provided by this utility model. The ring main unit body is internally equipped with an air box 110, which houses a circuit breaker mechanism 120, an isolation mechanism 130 for circuit isolation, and a grounding mechanism to ensure the safe grounding of the isolated circuit. Figure 2As shown, the grounding mechanism specifically consists of key components such as a grounding switch 210, an operating motor 220, a monitoring module 230, and a communication module. The communication module receives and parses instructions from the remote control system; the operating motor 220 precisely drives the grounding switch 210 to perform opening and closing operations according to these instructions, effectively achieving grounding protection for the circuit; the monitoring module 230 can monitor the current status (open or closed) of the grounding switch 210 in real time and feed back the status information of the grounding switch 210 to the remote control system through the communication module, so that managers can monitor the operating status of the ring main unit at any time through the remote control system. Specifically, the core function of the isolation mechanism 130 is to perform the opening and closing operation of the isolating switch. Through this operation, flexible isolation of the circuit can be achieved, ensuring the safety of the circuit during maintenance, inspection, or fault handling. The circuit breaker mechanism 120 has a built-in circuit breaker for precise control of current flow, ensuring the stable operation of the power system. The grounding mechanism is a closing and opening mechanism closely linked to the circuit breaker mechanism 120. During the closing process of the grounding switch 210, the grounding mechanism stores energy; once the grounding switch 210 is fully closed, it rapidly releases the energy, driving the circuit breaker mechanism 120 to complete the closing action. Conversely, when the grounding switch 210 is fully open, the grounding mechanism triggers the circuit breaker mechanism 120 to open, ensuring the safe disconnection of the circuit. In practical applications, once a line fault occurs, the circuit breaker mechanism 120 immediately disconnects the faulty circuit, and the isolation mechanism 130 quickly acts to isolate the faulty section. At this time, the grounding switch 210 automatically opens, ensuring circuit safety and protecting maintenance personnel. During power outage operations and maintenance of the ring main unit, the operating motor 220 can precisely drive the grounding switch 210 to open or close according to remote commands, reducing on-site operational risks. It is worth mentioning that the operating motor 220 gives the ring main unit an electric operation function, realizing one-button operation without the need for on-site personnel intervention, greatly improving operational efficiency and saving time and manpower. Combined with a remote control system, the ring main unit can be remotely controlled and monitored through a monitoring center or remote control device.

[0035] In one feasible embodiment, a highly integrated detection module is configured inside the gas chamber 110, which includes a first sensor assembly and a second sensor assembly. Specifically, the first sensor assembly is specifically responsible for monitoring the real-time status of the grounding switch 210 to ensure the safety and reliability of grounding; while the second sensor assembly is responsible for detecting temperature and pressure changes inside the gas chamber 110, providing key data support for the stable control of the internal environment of the gas chamber 110.

[0036] In one feasible embodiment, such as Figure 1As shown, a ring main unit panel 140 is provided on one side of the gas box 110. This panel not only has the opening and closing operation holes of the grounding switch 210 to facilitate the safe grounding operation of the ring main unit, but also is equipped with intuitive indicator lights to clearly display the current operating status of the ring main unit, which greatly improves the convenience and safety of operation.

[0037] In one feasible embodiment, the ring main unit panel 140 is also equipped with an operating handle that is closely connected to the grounding switch 210. Users can easily manually open and close the grounding switch 210 through the handle, further enhancing the operational flexibility of the equipment.

[0038] In one feasible embodiment, in order to stably support the gas box 110 and ensure its smooth operation, the ring main unit is also provided with a base 150, which provides a solid guarantee for the safe and efficient operation of the gas box 110 and the entire ring main unit system.

[0039] In one feasible embodiment, a control circuit is also embedded in the ring main unit. This circuit is closely connected to the isolation mechanism 130, the circuit breaker mechanism 120 and the grounding mechanism, respectively, realizing intelligent control and coordination of the entire ring main unit system.

[0040] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present utility model.

Claims

1. A ring main unit, characterized in that, The system includes a ring main unit, inside which is an air box. The air box contains an isolation mechanism for isolating circuits and a grounding mechanism for ensuring the safe grounding of the isolated circuits. The grounding mechanism includes a grounding switch, an operating motor, a monitoring module, and a communication module. The communication module receives remote commands from a remote control system. The operating motor drives the grounding switch to open and close according to the remote commands. The monitoring module monitors the current status of the grounding switch in real time and feeds back the status information to the remote control system through the communication module.

2. A ring main unit according to claim 1, characterized in that, The gas box is equipped with a circuit breaker mechanism, which is located on one side of the isolation mechanism. When a fault occurs in the line, the circuit breaker mechanism cuts off the circuit, the isolation mechanism isolates the circuit, and the grounding switch is in the open state.

3. A ring main unit according to claim 1, characterized in that, The gas box is equipped with a detection module, which includes a first sensor assembly for monitoring the status of the grounding switch.

4. A ring main unit according to claim 3, characterized in that, The detection module includes a second sensor assembly for detecting and monitoring the temperature and pressure inside the gas box.

5. A ring main unit according to claim 1, characterized in that, A ring main unit panel is provided on one side of the gas box. The ring main unit panel is provided with the opening and closing operation holes of the grounding switch. The opening and closing operation holes are used to ground the ring main unit.

6. A ring main unit according to claim 5, characterized in that, The ring main unit panel is equipped with indicator lights to display the current status of the ring main unit.

7. A ring main unit according to claim 5, characterized in that, The ring main unit panel is equipped with an operating handle connected to the grounding switch. The operating handle is used to manually control the grounding switch to perform opening and closing operations.

8. A ring main unit according to claim 2, characterized in that, The circuit breaker mechanism includes a circuit breaker for controlling current path and interruption.

9. A ring main unit according to claim 2, characterized in that, The ring main unit is equipped with a control circuit, which is connected to the isolation mechanism, the circuit breaker mechanism and the grounding mechanism respectively.

10. A ring main unit according to claim 1, characterized in that, The ring main unit is also equipped with a base for supporting the gas box.

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