Safety monitor of high-voltage metering cabinet

Abstract

The utility model discloses a high-voltage metering cabinet safety monitor which comprises a monitoring cabinet, a change-over switch is installed in the monitoring cabinet, the change-over switch is connected with a mechanical voltmeter, the mechanical voltmeter is installed on the side wall of the monitoring cabinet, the monitoring cabinet is embedded in the high-voltage metering cabinet, a power supply device is arranged in the high-voltage metering cabinet, and three wiring ports are formed in the top of the power supply device. The three wiring ports are connected with three-phase fuses, the three-phase fuses penetrate through the monitoring cabinet and are connected to the change-over switch, the change-over switch is screwed to be connected to each phase of fuse of the three-phase fuses one by one, and the mechanical voltmeter monitors the change of the voltage value of each phase of fuse, monitors the working state of each phase of fuse and judges whether the fuse is fused or not. Therefore, safe operation of equipment is guaranteed, equipment burnout, personnel injury and influence on power supply safety caused by fusing of the three-phase fuse are avoided, and accurate statistics and analysis are carried out on unit electricity consumption by monitoring the normal working state of the fuse.

Description

Technical Field

[0001] The present application relates to the technical field of meter cabinet monitoring, and in particular to a high-voltage meter cabinet fuse monitor. Background Art

[0002] The high-voltage metering cabinet is a distribution cabinet that measures the unit electricity consumption. Only with accurate measurement can the unit electricity consumption be counted and analyzed. When the fuse in the high-voltage metering cabinet does not operate normally, it will affect the electricity statistics and analysis, and will also have a certain impact on energy management. The three-phase fuse in the high-voltage metering cabinet generally does not have a monitoring device to monitor it phase by phase, so it is impossible to observe the working status of the three-phase fuse. When all the three-phase fuses in the metering cabinet are blown, it may cause equipment burning and personal injury, affecting the power supply safety. Therefore, the present application proposes a high-voltage metering cabinet fuse monitor. Utility Model Content

[0003] The present application provides a high-voltage meter cabinet fuse monitor, which is provided with a transfer switch and a mechanical voltmeter. By turning the transfer switch, the monitor is connected to each phase fuse of the three-phase fuse one by one. The mechanical voltmeter monitors the change in the voltage value of each phase fuse, and then monitors the working status of each phase fuse to determine whether it is blown, thereby ensuring the safe operation of the equipment and avoiding equipment burning and personal injury caused by the melting of the three-phase fuse, which affects the power supply safety. By monitoring the normal working status of the fuse, the unit power consumption is accurately counted and analyzed.

[0004] The present application provides a high-voltage metering cabinet fuse monitor, including: a monitoring cabinet, a transfer switch installed in the monitoring cabinet, the transfer switch is connected to a mechanical voltmeter, the mechanical voltmeter is installed on the side wall of the monitoring cabinet, the monitoring cabinet is embedded in the high-voltage metering cabinet, a power supply device is provided in the high-voltage metering cabinet, three wiring ports are provided on the top of the power supply device, the three wiring ports are connected to three-phase fuses, the three-phase fuses are L1 fuse, L2 fuse and L3 fuse respectively, the L1 fuse, L2 fuse and L3 fuse respectively pass through the monitoring cabinet and are connected to the transfer switch.

[0005] Furthermore, the monitoring cabinet is a trough body, and a transfer switch and a mechanical voltmeter are installed on the side wall of the monitoring cabinet.

[0006] Furthermore, both side walls of the monitoring cabinet are provided with outer edges.

[0007] Furthermore, the high-voltage metering cabinet is provided with a cabinet door.

[0008] Furthermore, an observation window is installed on the cabinet door.

[0009] Furthermore, a handle is installed on the cabinet door.

[0010] From the above technical solution, it can be seen that the present application provides a high-voltage metering cabinet fuse monitor, comprising: a monitoring cabinet, a switching switch installed in the monitoring cabinet, the switching switch is connected to a mechanical voltmeter, the mechanical voltmeter is installed on the side wall of the monitoring cabinet, and the working status of the fuse connected to the power supply device in the high-voltage metering cabinet is judged and monitored by the value of the mechanical voltmeter. The monitoring cabinet is embedded in the high-voltage metering cabinet, and a power supply device is provided in the high-voltage metering cabinet. Three wiring ports are provided on the top of the power supply device, and the three wiring ports are connected to three-phase fuses. The three-phase fuses are L1 fuse, L2 fuse and L3 fuse respectively. The L1 fuse, L2 fuse and L3 fuse pass through the monitoring cabinet and are connected to the switching switch. By turning the switching switch to connect the L1 fuse connected to the power supply device, the mechanical voltmeter connected to the switching switch is connected to the L1 fuse, and then the mechanical voltmeter monitors the voltage value of the L1 fuse, and the working status of the L1 fuse is judged by monitoring the change in voltage value; by turning the switching switch to connect the L2 fuse connected to the power supply device, the switching switch is turned on. The mechanical voltmeter connected to the switch is connected to the L2 fuse, and the mechanical voltmeter monitors the voltage value of the L2 fuse, and the working status of the L2 fuse is judged by monitoring the change of the voltage value; by turning the conversion switch to connect the L3 fuse connected to the power supply device, the mechanical voltmeter connected to the conversion switch is connected to the L3 fuse, and the mechanical voltmeter monitors the voltage value of the L3 fuse, and the working status of the L3 fuse is judged by monitoring the change of the voltage value. When a phase fuse monitored by the mechanical voltmeter is in a state of being blown, its resistance will increase, and the voltage value monitored by the mechanical voltmeter will gradually increase. It is necessary to immediately turn off the power supply device and replace the fuse. By turning the conversion switch to connect it to each phase fuse of the three-phase fuse one by one, the mechanical voltmeter monitors the change of the voltage value of each phase fuse connected to the power supply device, and then monitors the working status of each phase fuse to determine whether it is blown, thereby ensuring the safe operation of the equipment and avoiding the burning of equipment and personal injury when the three-phase fuse is blown, which affects the power supply safety.

[0011] In summary, the beneficial effects produced by this application are as follows:

[0012] 1. The monitor is equipped with a transfer switch and a mechanical voltmeter. By turning the transfer switch, it is connected to each phase fuse of the three-phase fuse one by one. The mechanical voltmeter monitors the change in the voltage value of each phase fuse, and then monitors the working status of each phase fuse to determine whether it is blown, thereby ensuring the safe operation of the equipment and avoiding equipment burning and personal injury when the three-phase fuse is blown, which affects the power supply safety.

[0013] 2. The monitor observes the working status of each phase fuse through a mechanical voltmeter. When the value of the mechanical voltmeter is observed to gradually decrease, the fuse can be discovered and handled in time, thereby improving the measurement accuracy of the voltage meter cabinet and further improving the accuracy of power statistical analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of this application, the following is a brief introduction to the drawings required for the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 This is a schematic diagram of the structure of this application.

[0016] Figure 2 It is a structural diagram of the monitoring cabinet.

[0017] Figure 3 This is a structural diagram of the high-voltage metering cabinet.

[0018] Illustration:

[0019] Among them, 1-high-voltage metering cabinet, 2-power supply device, 3-connection port, 4-L1 fuse, 5-L2 fuse, 6-L3 fuse, 7-transfer switch, 8-mechanical voltmeter, 9-monitoring cabinet, 10-cabinet door, 11-observation window. DETAILED DESCRIPTION

[0020] In order to enable people skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0021] See the above technical solution Figure 1-Figure 3 .

[0022] Example 1:

[0023] A high-voltage metering cabinet insurance monitor includes: a monitoring cabinet 9, a transfer switch 7 is installed in the monitoring cabinet 9, the transfer switch 7 is connected to a mechanical voltmeter 8, the mechanical voltmeter 8 is installed on the side wall of the monitoring cabinet 9, and the working state of the three-phase fuse connected to the power supply device 2 in the high-voltage metering cabinet 1 is judged and monitored by the numerical value of the mechanical voltmeter 8. The monitoring cabinet 9 is embedded in the high-voltage metering cabinet 1, and the high-voltage metering cabinet 1 is provided with a power supply device 2. Three wiring ports 3 are provided on the top of the power supply device 2. The three wiring ports 3 are connected to three-phase fuses. The three-phase fuses are L1 fuse 4, L2 fuse 5 and L3 fuse 6, L1 fuse 4, L2 fuse 5 and L3 fuse 6 are respectively connected to the monitoring cabinet 9 and connected to the transfer switch 7. By turning the transfer switch 7, the L1 fuse 4 connected to the power supply device 2 is connected, and the mechanical voltmeter 8 connected to the transfer switch 7 is connected to the L1 fuse 4, and then the mechanical voltmeter 8 monitors the voltage value of the L1 fuse 4, and the working status of the L1 fuse 4 is judged by monitoring the voltage value change; by turning the transfer switch 7, the L2 fuse 5 connected to the power supply device 2 is connected, and the transfer switch 7 is connected to the L1 fuse 4. The mechanical voltmeter 8 connected to the switch 7 is connected to the L2 fuse 5, so that the mechanical voltmeter 8 monitors the voltage value of the L2 fuse 5, and the working state of the L2 fuse 5 is judged by monitoring the change of the voltage value; by turning the conversion switch 7 to connect the L3 fuse 6 connected to the power supply device 2, the mechanical voltmeter 8 connected to the conversion switch 7 is connected to the L3 fuse 6, and the mechanical voltmeter 8 monitors the voltage value of the L3 fuse 6, and the working state of the L3 fuse 6 is judged by monitoring the change of the voltage value. When a phase monitored by the mechanical voltmeter 8 is When the fuse is in the state of being blown, its resistance will increase, and the voltage value monitored by the mechanical voltmeter 8 will gradually increase. It is necessary to immediately turn off the power supply device 2 and replace the fuse. By turning the conversion switch 7, it is connected to each phase fuse of the three-phase fuse one by one. The mechanical voltmeter 8 monitors the changes in the voltage value of each phase fuse connected to the power supply device 2, and then monitors the working status of each phase fuse to determine whether it is blown, thereby ensuring the safe operation of the equipment and avoiding the burning of equipment and personal injury when the three-phase fuse is blown, which affects the power supply safety.

[0024] As a preferred embodiment, the monitoring cabinet 9 is a trough body, and a switching switch 7 and a mechanical voltmeter 8 are installed on the side wall of the monitoring cabinet 9. The shape of the trough body facilitates the monitoring cabinet 9 to be embedded in the high-voltage metering cabinet 1, and then facilitates the switching switch 7 and the mechanical voltmeter 8 to cooperate to monitor the L1 fuse 4, L2 fuse 5 and L3 fuse 6 connected to the power supply device 2.

[0025] As a preferred embodiment, both side walls of the monitoring cabinet 9 are provided with outer edges, which facilitate the monitoring cabinet 9 to be embedded in the high-voltage metering cabinet 1 and prevent the monitoring cabinet 9 from sliding off.

[0026] As a preferred embodiment, the high-voltage metering cabinet 1 is provided with a cabinet door 10, which can be opened when necessary to facilitate installation, maintenance and replacement of fuses.

[0027] As a preferred embodiment, an observation window 11 is installed on the cabinet door 10, and the observation window 11 is convenient for checking the value of the mechanical voltmeter 8 on the monitoring cabinet 9 when the cabinet door 10 is closed.

[0028] As a preferred embodiment, a handle is installed on the cabinet door 10, and the handle facilitates opening the cabinet door 10.

[0029] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope of this application is indicated by the claims.

[0030] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A high-voltage metering cabinet insurance monitor, characterized in that: include: A monitoring cabinet (9) is provided, wherein a transfer switch (7) is installed in the monitoring cabinet (9), wherein the transfer switch (7) is connected to a mechanical voltmeter (8), wherein the mechanical voltmeter (8) is installed on a side wall of the monitoring cabinet (9), wherein the monitoring cabinet (9) is embedded in a high-voltage metering cabinet (1), wherein a power supply device (2) is provided in the high-voltage metering cabinet (1), wherein three wiring ports (3) are provided on the top of the power supply device (2), wherein the three wiring ports (3) are connected to three-phase fuses, wherein the three-phase fuses are respectively an L1 fuse (4), an L2 fuse (5) and an L3 fuse (6), wherein the L1 fuse (4), the L2 fuse (5) and the L3 fuse (6) respectively pass through the monitoring cabinet (9) and are connected to the transfer switch (7).

2. A high-voltage metering cabinet fuse monitor according to claim 1, characterized in that: The monitoring cabinet (9) is a trough body, and the switching switch (7) and the mechanical voltmeter (8) are installed on the side wall of the monitoring cabinet (9).

3. A high-voltage metering cabinet fuse monitor according to claim 1, characterized in that: Both side walls of the monitoring cabinet (9) are provided with outer edges.

4. A high-voltage metering cabinet fuse monitor according to claim 1, characterized in that: The high-voltage metering cabinet (1) is provided with a cabinet door (10).

5. A high-voltage metering cabinet fuse monitor according to claim 4, characterized in that: An observation window (11) is installed on the cabinet door (10).

6. A high-voltage metering cabinet fuse monitor according to claim 4, characterized in that: A handle is installed on the cabinet door (10).

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