Electrification display device of GIS (Gas Insulated Switchgear) equipment

Abstract

The invention provides an electrified display device for GIS equipment, and the device comprises an inductive sensor which is used for detecting the electrified state of the GIS equipment; the signal processing module is used for receiving a sensing signal detected by the inductive sensor to obtain electrified state information; the display module is used for receiving and displaying the electrification state information so as to indicate that the high-voltage bus is electrified; the wireless communication data module is used for encrypting the live-line state information and transmitting the encrypted live-line state information to a remote control system through a wireless communication network; and the remote control system is used for receiving the encrypted live-line state information, decrypting the encrypted live-line state information to obtain plaintext data of the live-line state information, performing logic judgment and processing according to the plaintext data of the live-line state information, and performing logic interlocking control on the grounding device of the GIS equipment according to a five-prevention rule. According to the invention, the problems of complex wiring, high maintenance cost, poor flexibility and the like of a traditional GIS live display device can be solved.

Description

Technical Field

[0001] This invention relates to the field of GIS technology, and more specifically to an electrified display device for GIS equipment. Background Technology

[0002] With the rapid development of power systems, GIS (Gas Insulated Switchgear) is being used more and more widely in power grids. As an important safety monitoring device, the GIS live-line display device is mainly used to monitor the energized status of equipment within the GIS cabinet and display the detection results visually, allowing maintenance personnel to understand and monitor the equipment's operating status in a timely manner. This plays a crucial role in the safe operation of the power grid. However, traditional GIS live-line display devices mostly use wired communication methods, which suffer from problems such as complex wiring, high maintenance costs, and poor flexibility. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a live display device for GIS equipment, so as to solve the problems of traditional GIS live display devices, which mostly use wired communication methods, resulting in complex wiring, high maintenance costs, and poor flexibility.

[0004] To address the aforementioned technical problems, the present invention provides a live display device for GIS equipment, comprising:

[0005] Inductive sensors are used to detect the electrical status of GIS equipment;

[0006] The signal processing module is used to receive the sensing signal detected by the inductive sensor to obtain the charged state information;

[0007] The display module is used to receive and display the energization status information to indicate that the high-voltage busbar is energized;

[0008] A wireless communication data module is used to encrypt the charged state information and transmit it to the remote control system via a wireless communication network;

[0009] The remote control system is used to receive the encrypted energized status information, decrypt it to obtain the plaintext data of the energized status information, perform logical judgment and processing based on the plaintext data of the energized status information, and perform logical interlocking control on the grounding device of the GIS equipment according to the rules for preventing the grounding switch from being closed while energized and the rules for preventing accidental entry into the energized interval.

[0010] Preferably, the remote control system is used to lock the grounding switch by means of an electromagnetic lock or a mechanical locking device when a grounding switch operation request is detected and the GIS equipment is energized, so as to prevent the grounding switch from closing.

[0011] Preferably, the remote control system is used to release the locking device of the grounding switch when it detects a grounding switch operation request and the GIS equipment is not energized, so as to allow the operator to manually close the grounding switch or perform the closing operation through remote control.

[0012] Preferably, the remote control system is used to alert personnel to danger via an audible and visual alarm system when it detects personnel approaching or attempting to enter a live compartment.

[0013] Preferably, the remote control system is used to disable the audible and visual alarm system when it detects that the GIS equipment is not powered and personnel need to enter the interval for maintenance, allow maintenance personnel to enter the interval, and record the equipment maintenance log.

[0014] The live display device for GIS equipment proposed in this invention has the following beneficial effects:

[0015] The inductive sensor employs non-contact detection technology, improving the safety and reliability of detection and avoiding the risks of direct contact with high-voltage equipment. The signal processing module processes the sensor signals, ensuring the accuracy and stability of the live-state information. The display module intuitively displays the live-state, allowing maintenance personnel to quickly understand the operating status of the GIS equipment and improving maintenance efficiency. The wireless communication data module transmits data through a wireless communication network, greatly reducing the complexity of wiring and improving the flexibility and maintainability of the device. Simultaneously, encrypted transmission ensures data security. The remote control system decrypts the received data and performs logical judgments and processing according to the rules for preventing the closing of grounding switches while the device is live and the rules for preventing accidental entry into live intervals, achieving logical interlocking control of the GIS equipment grounding device. This effectively prevents misoperation and ensures the safe operation of the power grid. In summary, this invention effectively solves the problems of complex wiring, high maintenance costs, and poor flexibility inherent in traditional GIS live-state display devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0017] Figure 1 This is a schematic diagram of a live display device for a GIS equipment according to an embodiment of the present invention.

[0018] Marked in the image:

[0019] 1-Sensor, 2-Signal processing module, 3-Display module, 4-Wireless communication data module, 5-Control system. Detailed Implementation

[0020] The detailed description of the accompanying drawings is intended to illustrate the present embodiments of this application and is not intended to represent only the forms in which this application can be implemented. It should be understood that the same or equivalent functions can be accomplished by different embodiments intended to be included within the spirit and scope of this application.

[0021] See Figure 1 An embodiment of the present invention provides a live display device for a GIS device, comprising:

[0022] Inductive sensors are used to detect the electrical status of GIS equipment;

[0023] The signal processing module is used to receive the sensing signal detected by the inductive sensor to obtain the charged state information;

[0024] The display module is used to receive and display the energization status information to indicate that the high-voltage busbar is energized;

[0025] A wireless communication data module is used to encrypt the charged state information and transmit it to the remote control system via a wireless communication network;

[0026] The remote control system is used to receive the encrypted live status information, decrypt it to obtain the plaintext data of the live status information, perform logical judgment and processing based on the plaintext data of the live status information, and perform logical interlocking control on the grounding device of the GIS equipment according to the rules of preventing closing the grounding switch while the equipment is energized and preventing accidental entry into the energized interval in the five-prevention rules.

[0027] In this embodiment, the inductive sensor employs non-contact detection technology, improving the safety and reliability of detection and avoiding the risks of direct contact with high-voltage equipment. The signal processing module processes the sensor signals, ensuring the accuracy and stability of the live-state information. The display module intuitively displays the live-state, allowing maintenance personnel to quickly understand the operating status of the GIS equipment and improving maintenance efficiency. The wireless communication data module transmits data through a wireless communication network, greatly reducing the complexity of wiring and improving the flexibility and maintainability of the device. Simultaneously, encrypted transmission ensures data security. The remote control system decrypts the received data and performs logical judgment and processing based on the rules for preventing the closing of grounding switches while the device is live and the rules for preventing accidental entry into live intervals, thus achieving logical interlocking control of the GIS equipment grounding device. This effectively prevents misoperation and ensures the safe operation of the power grid. In summary, this invention effectively solves the problems of complex wiring, high maintenance costs, and poor flexibility inherent in traditional GIS live-state display devices.

[0028] Furthermore, the remote control system is used to lock the grounding switch via an electromagnetic lock or mechanical locking device when a grounding switch operation request is detected and the GIS equipment is energized, thereby preventing the grounding switch from closing.

[0029] Specifically, grounding switches are typically used to ground the conductors of electrical equipment to ensure safety during maintenance or repair. Upon receiving a request to operate the grounding switch, the remote control system checks if the GIS equipment is energized. When the remote control system detects that the GIS equipment is energized and a grounding switch operation request is received simultaneously, it activates an electromagnetic lock or mechanical locking device to lock the grounding switch. These locking devices prevent the grounding switch from being closed. Operating the grounding switch while the GIS equipment is energized could lead to serious electrical accidents, such as short circuits or arcing faults. Locking the grounding switch prevents such misoperation. Closing the grounding switch while the equipment is energized could cause current to flow through the grounding path, potentially injuring operators or damaging the equipment. Locking the grounding switch avoids this. An electromagnetic lock is a device that uses electromagnetic force to lock or unlock; it locks when energized and unlocks when de-energized. Mechanical locking devices lock physically and require manual operation to unlock. By using these locking devices, the grounding switch cannot be closed when the GIS equipment is energized, thus ensuring system safety. This function of the remote control system is designed to prevent misoperation by locking the grounding switch when the GIS equipment is energized, thus ensuring the safe operation of the power system and the safety of operators. This is an important component of power system automation and intelligent management, contributing to improved reliability and security of the power system.

[0030] Furthermore, the remote control system is used to release the locking device of the grounding switch when it detects a grounding switch operation request and the GIS equipment is not energized, so as to allow the operator to manually close the grounding switch or perform the closing operation through remote control.

[0031] Specifically, the remote control system detects a request to operate the grounding switch. The grounding switch is used to ground the conductors of electrical equipment during maintenance or repair to ensure operator safety. Upon receiving the grounding switch operation request, the remote control system checks whether the GIS equipment is de-energized. If the remote control system confirms that the GIS equipment is de-energized, it means the equipment is in a safe state and grounding operations can be performed without causing an electrical accident. After confirming that the GIS equipment is de-energized, the remote control system releases the locking device on the grounding switch to allow its operation, as the grounding switch cannot be operated when locked.

[0032] After unlocking, operators can manually close the grounding switch to complete the grounding operation. The remote control system can also remotely control the closing action of the grounding switch by sending signals. Unlocking only when the equipment is de-energized prevents accidental operation of the grounding switch when the equipment is energized, thus improving operational safety. Controlling the operation of the grounding switch ensures that operators will not come into contact with live parts during maintenance or repair, guaranteeing operator safety. This function of the remote control system allows operators to manually or remotely close the grounding switch when the GIS equipment is confirmed to be de-energized, thereby achieving effective control and management of the power system while ensuring safety. This mechanism helps improve the operational safety and reliability of the power system and is an important component of power system automation and intelligence.

[0033] Furthermore, the remote control system is used to alert personnel to danger via an audible and visual alarm system when it detects personnel approaching or attempting to enter a live compartment.

[0034] Specifically, the remote control system is equipped with sensors or other monitoring devices that can detect whether personnel are approaching or attempting to enter the live compartment. These sensors include infrared sensors, microwave sensors, proximity sensors, etc. Once personnel are detected approaching or attempting to enter the live compartment, the remote control system immediately activates an audible and visual alarm system, which consists of the following two parts:

[0035] Audible alarm: Emits a loud alarm sound to alert personnel to danger via audible signal.

[0036] Light alarm: Illuminate the area with a bright light, such as a flashing red LED, to visually indicate the danger zone.

[0037] The purpose of an audible and visual alarm system is to immediately alert approaching personnel to the danger, prevent them from entering a live area, and thus avoid electric shock accidents.

[0038] Furthermore, the remote control system is used to disable the audible and visual alarm system when it detects that the GIS equipment is not powered and personnel need to enter the interval for maintenance, allowing maintenance personnel to enter the interval and recording the equipment maintenance log.

[0039] Specifically, the remote control system first checks if the GIS equipment is de-energized to ensure there is no voltage and maintenance can be performed in a safe environment. The system also needs to confirm whether maintenance personnel need to enter the bay for work; this can be done through personnel authentication, scheduling a maintenance appointment, or a direct request from the personnel. Once it is confirmed that the GIS equipment is de-energized and maintenance personnel need to enter the bay, the remote control system will deactivate the audible and visual alarms to eliminate unnecessary alarms and allow maintenance personnel to work safely without interference.

[0040] The remote control system also records relevant information about equipment maintenance, including the identity of the maintenance personnel, the time of entry, the content of maintenance, and the tools and materials used. These logs are crucial for tracking equipment maintenance history, fault analysis, and safety management. This function of the remote control system allows maintenance personnel to enter the GIS bay to perform necessary maintenance work while ensuring safety, and tracks the equipment's maintenance history by recording maintenance logs, thereby improving the operational efficiency and safety of the power system.

[0041] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A charge display device for GIS equipment, characterized in that: include: Inductive sensors are used to detect the power status of GIS equipment; A signal processing module, used for receiving a sensing signal detected by the inductive sensor to obtain charging state information; A display module, used for receiving and displaying the energized state information to indicate that the high-voltage bus is energized; A wireless communication data module, used for encrypting the charged state information and transmitting it to a remote control system via a wireless communication network; The remote control system is used to receive the encrypted live status information, decrypt it to obtain the plain text data of the live status information, perform logical judgment and processing based on the plain text data of the live status information, and perform logical interlocking control on the grounding device of the GIS equipment based on the rules for preventing the live grounding switch from being closed and the rules for preventing the accidental entry into the live interval.

2. The charge display device for GIS equipment according to claim 1, characterized in that: The remote control system is used to lock the grounding switch through an electromagnetic lock or a mechanical locking device to prevent the grounding switch from closing when a grounding switch operation request is detected and the GIS equipment is energized.

3. The charge display device for GIS equipment according to claim 2, characterized in that: The remote control system is used to release the locking device of the grounding switch when a grounding switch operation request is detected and the GIS equipment is not powered, so as to allow the operator to manually close the grounding switch or perform closing through remote control.

4. The charge display device for GIS equipment according to claim 3, characterized in that: The remote control system is used to alert the personnel of danger through an audible and visual alarm system when it detects that a person is approaching or attempting to enter a live compartment.

5. The charge display device for GIS equipment according to claim 4, characterized in that: The remote control system is used to turn off the sound and light alarm system reminder when it detects that the GIS equipment is not powered and personnel need to enter the interval for maintenance, allowing maintenance personnel to enter the interval and recording the equipment maintenance log.

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