High-voltage dual-power-supply switching anti-misoperation locking failure alarm device
By designing an anti-error locking device and detection module in a high-voltage dual power switching system, combining alarm and display devices, the short-circuit accident problem caused by user operation errors is solved, and the safety and reliability of the system are improved.
Patent Information
- Application Number
- CN202420016052.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-01-04
AI Technical Summary
In the prior art, users may easily cause short circuit accidents due to operational errors during high-voltage dual power switching, endangering operators and power grid safety.
A high-voltage dual power supply switching anti-error locking failure alarm device is designed. By setting up an anti-error locking device and detection module, the load line information is detected, and mechanical locking is realized through the control unit and the motor to avoid misoperation. At the same time, an alarm device and a display device are equipped to promptly remind users and display accurate power data.
It effectively avoids short-circuit accidents caused by misoperation, improves the safety, stability and reliability of high-voltage dual power switching, prevents inaccurate metering, and ensures the safe operation of the power grid.
Smart Images
Figure CN222531373U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power grid electric equipment, in particular to a high-voltage dual power supply switching anti-mislocking failure alarm device. Background Art
[0002] With the development of the national economy, people have higher and higher requirements for power supply reliability. For important occasions where power outages are not allowed, such as hospitals, shopping malls, banks, chemical industries, high-rise buildings, military facilities, and fire protection, two power supplies are required to ensure the reliability of power supply.
[0003] In the prior art, when the system provides two power supplies and the user closes the loop without power outage, the following problems exist: Since a dedicated transformer refers to an independent dedicated transformer for power supply, most of them are units with large electricity consumption. If the user makes a mistake in the phase check operation and fails to correctly switch the high-voltage power supply, it is very easy to cause a short circuit accident, which endangers the personal safety of the operator and the power grid. Utility Model Content
[0004] The utility model aims to provide a high-voltage dual power supply switching anti-mislocking failure alarm device to solve the problems raised in the above-mentioned background technology.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: including a high-voltage dual power switching device, the high-voltage dual power switching device is wrapped and protected by a cabinet, the high-voltage dual power switching device is electrically connected to a main power supply and a backup power supply respectively, the power switching device is electrically connected to a load, a detection module for detecting load line information is electrically connected between the high-voltage dual power switching device and the load, the output end of the detection module is electrically connected to a control unit, and the output end of the control unit is electrically connected to an anti-mistake locking device.
[0006] The anti-error locking device includes a transformer low-voltage busbar, the transformer low-voltage busbar is electrically connected to the load line, the transformer low-voltage busbar output end is electrically connected to the electrical anti-error locking FTU, the electrical anti-error locking FTU output end is electrically connected to the control circuit, the control circuit is electrically connected to a motor, the motor mechanically locks the high-voltage dual power switching device, the control circuit and the motor are provided with a tripping circuit DL in parallel, the tripping circuit DL is provided with a tripping coil TQ and a cabinet door travel switch BL in series, and the tripping coil TQ is electrically connected to the load line.
[0007] The output end of the control unit is electrically connected to an alarm device and a display device, and the alarm device includes a light alarm and a buzzer alarm.
[0008] The display device is a touch display screen
[0009] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0010] The utility model can avoid accidents caused by misoperation by arranging an anti-misoperation locking device, and promptly remind users through the alarm device to avoid inaccurate measurement and prevent short-circuit accidents, thereby ensuring the safety of the power grid and improving the safety, stability and reliability of high-voltage dual power supply switching. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0014] Figure 3 It is a schematic diagram of the overall circuit of the utility model;
[0015] Figure 4 It is a circuit diagram of the anti-mistake locking circuit of the utility model.
[0016] In the figure: 1. Main power supply; 2. Backup power supply; 3. High-voltage dual power supply switching device; 4. Load; 5. Control unit; 6. Detection module; 7. Alarm device; 8. Display device; 9. Anti-error locking device; 10. Tripping circuit DL; 11. Control circuit; 111. Motor; 12. Door travel switch BL; 13. Tripping coil TQ; 14. Electrical anti-error locking FTU; 15. Transformer low-voltage busbar; 16. Cabinet. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4The utility model provides a technical solution: including a high-voltage dual power switching device 3, the high-voltage dual power switching device 3 is wrapped and protected by a cabinet 16, the high-voltage dual power switching device 3 is electrically connected to a main power supply 1 and a backup power supply 2 respectively, the power switching device is electrically connected to a load 4, and a detection module 6 for detecting line information of the load 4 is electrically connected between the high-voltage dual power switching device 3 and the load 4, the output end of the detection module 6 is electrically connected to a control unit 5, and the output end of the control unit 5 is electrically connected to an anti-mistake locking device 9.
[0019] The anti-error locking device 9 includes a transformer low-voltage busbar 15, the transformer low-voltage busbar 15 is electrically connected to the load 4 line, the transformer low-voltage busbar output end is electrically connected to the electrical anti-error locking FTU14, the electrical anti-error locking FTU14 output end is electrically connected to the control circuit 11, the control circuit 11 is electrically connected to the motor 111, the motor 111 mechanically locks the high-voltage dual power switching device 3, the control circuit 11 and the motor 111 are provided with a tripping circuit DL10 in parallel, the tripping circuit DL10 is provided with a tripping coil TQ13 and a cabinet door travel switch BL12 in series, the tripping coil TQ13 is electrically connected to the load 4 line, when the voltage and current of the load 4 line are unstable and endanger the safe operation, the control unit 5 can analyze and process the signal sent by the detection module 6, turn on the tripping coil TQ13, when the tripping coil TQ13 is energized, the high-voltage dual power switching device 3 is prompted to trip, and the circuit breaker The connected high-voltage power supply is opened, and the electrical anti-error locking FTU14 has remote control, telemetry, telesignaling, and fault detection functions. The cabinet door travel switch BL12 can lock the cabinet door of the cabinet body 16, and the cabinet door can be unlocked only after the safety trip. The high-voltage dual power supply switching process can be well regulated and controlled by controlling the control loop 11, and the high-voltage dual power supply switching device 3 can be mechanically locked by the motor 111. Only when the operation is correct can it be unlocked step by step to prevent the occurrence of misoperation, so as to achieve the purpose of ultimately safely operating the high-voltage dual power supply switching device 3, avoid misoperation, reduce the probability of short-circuit accidents, protect the safety of the power grid and operators, and provide the safety, stability, and reliability of high-voltage dual power supply switching. The control unit 5 can be an electrical-specific on-chip EPROM-type single-chip microcomputer, and the motor 111 is a telescopic motor. The telescopic shaft of the telescopic motor runs through the knob opening of the high-voltage dual power supply switching device 3.
[0020] The output end of the control unit 5 is electrically connected to an alarm device 7 and a display device 8. The alarm device 7 includes a light alarm and a buzzer alarm. When the user closes the loop without power outage, the system flow may be transmitted to another system station through the user's bus and backup circuit, generating reverse power. The electric energy meters of the main power supply 1 and the backup power supply 2 are running at the same time, resulting in the single-phase meter at the billing point causing distortion of the user's power and demand values. Therefore, inaccurate measurement may affect the large electricity bills of the special transformer users. The output end of the detection module 6 is also connected to the alarm device 7 and the display device 8. The detection module 6 detects reverse power or both sides of the main supply circuit and the backup supply circuit are energized at the same time, and transmits the signal to the control unit 5. After processing, the control unit 5 sends an electrical signal to the alarm device 7, the display device 8 and the anti-mistake locking device 9. The light alarm and the buzzer alarm on the alarm device 7 alarm, and multiple information channels remind users to avoid the alarm signal from being not transmitted in place. The display device 8 is a touch screen that can clearly and intuitively display the accurate power data detected by the detection module 6 to avoid inaccurate measurement.
[0021] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A high-voltage dual power switching anti-mislocking failure alarm device, comprising a high-voltage dual power switching device (3), the high-voltage dual power switching device (3) is wrapped with a protective cabinet (16), the high-voltage dual power switching device (3) is electrically connected to a main power supply (1) and a backup power supply (2), and the power switching device is electrically connected to a load (4), characterized in that: A detection module (6) for detecting line information of the load (4) is electrically connected between the high-voltage dual power supply switching device (3) and the load (4); an output end of the detection module (6) is electrically connected to a control unit (5); and an output end of the control unit (5) is electrically connected to an anti-mistake locking device (9).
2. The high-voltage dual power supply switching anti-mislocking failure alarm device according to claim 1 is characterized in that: The anti-error locking device (9) comprises a transformer low-voltage busbar (15), the transformer low-voltage busbar (15) is electrically connected to a load (4) circuit, the transformer low-voltage busbar output end is electrically connected to an electrical anti-error locking FTU (14), the electrical anti-error locking FTU (14) output end is electrically connected to a control circuit (11), the control circuit (11) is electrically connected to a motor (111), the motor (111) mechanically locks a high-voltage dual power switching device (3), the control circuit (11) and the motor (111) are provided with a trip circuit DL (10) in parallel, the trip circuit DL (10) is provided with a trip coil TQ (13) and a cabinet door travel switch BL (12) in series, and the trip coil TQ (13) is electrically connected to the load (4) circuit.
3. The high-voltage dual power supply switching anti-mislocking failure alarm device according to claim 1 is characterized in that: The output end of the control unit (5) is electrically connected to an alarm device (7) and a display device (8), and the alarm device (7) comprises a light alarm and a buzzer alarm.
4. The high-voltage dual power supply switching anti-mislocking failure alarm device according to claim 3 is characterized in that: The display device (8) is a touch display screen.