A relay protection panel cabinet with safety function

Abstract

A relay protection panel cabinet with a safety function belongs to the technical field of electrical equipment, including a protection panel cabinet, an on-site control system and a remote control terminal. The protection panel cabinet is located in the relay protection room of the substation, including a cabinet body and a cabinet door; the on-site control system is connected to the protection panel cabinet, including an access control module, a display module and an on-site controller; the on-site controller is connected to the display module, and controls the intelligent dimming color-changing glass, holographic imaging projector and digital display screen to work according to the instructions of the remote control terminal. By setting a protection panel cabinet outside the substation equipment, and installing the on-site control system in the substation and connecting it to the protection panel cabinet, the local operation of the protection panel cabinet can be ensured while the safety function can be quickly realized, the stability of the safety function can be ensured, and the protection panel cabinet and the on-site control system are controlled by the remote terminal, which has the characteristics of remote processing, remote monitoring, and quick arrangement of safety measures.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, in particular to a relay protection panel cabinet with a safety function. Background Art

[0002] Relay protection cabinets are widely used in the power, communication and other industries. The relay protection room is usually composed of multiple cabinets. Each cabinet is responsible for one or more functions, generally including protection panels, measurement and control panels, operation panels, power panels, etc. These panels cooperate with each other to complete the monitoring, control, protection, operation and other tasks of the power system.

[0003] When the relay protection and its automation devices are overhauled or defect handling is performed, in order to prevent the normally operating panel cabinets and internal devices or secondary lines from malfunctioning, it is generally necessary to isolate the normally operating panel cabinets with a safety fence, hang a "Equipment in Operation" warning sign, and hang a "Working Here" warning sign on the working panel cabinet. This safety measure requires the operation and maintenance personnel to be present to arrange it. If the arrangement is not in place, the relay protection and its automation devices may be malfunctioned by human beings, causing the equipment to trip, which is a serious threat.

[0004] The utility model provides a relay with a safety function to ensure reliable operation of electric power equipment. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a relay protection panel cabinet with a safety function.

[0006] The utility model adopts the following technical solutions:

[0007] A relay protection panel cabinet with safety function comprises a protection panel cabinet, an on-site control system and a remote control terminal. The protection panel cabinet is located in a relay protection room of a transformer substation and comprises a cabinet body and a cabinet door. The on-site control system is connected with the protection panel cabinet and comprises an access control module, a display module and an on-site controller. The access control module is arranged on the protection panel cabinet and is used to open or close the cabinet door of the protection panel cabinet. The display module comprises an intelligent dimming color-changing glass arranged on the protection panel cabinet and capable of changing color and misting to shield the situation inside the cabinet, a holographic imaging projector arranged on the cabinet door and capable of displaying the scene inside the cabinet, and a digital display screen arranged on the protection panel cabinet and capable of displaying warning slogans. The on-site controller is connected with the display module and controls the intelligent dimming color-changing glass, the holographic imaging projector and the digital display screen to work according to the instructions of the remote control terminal.

[0008] Preferably, the access control module includes an access control sensor, an electromagnetic lock, a mainboard, and a voltage-regulated power supply. The access control sensor is arranged on the door of the protective screen cabinet; the electromagnetic lock is arranged on the door to lock or unlock the door according to the signal feedback from the access control sensor; the mainboard is connected to the access control sensor and the electromagnetic lock, and is integrated with a light control circuit, a timing control circuit, a control circuit, and a detection circuit that can control the working mode of the access control module; the voltage-regulated power supply is respectively connected to the access control sensor, the electromagnetic lock, and the mainboard to supply energy for them.

[0009] Preferably, the access control sensor is a photoelectric switch, which is arranged on the cabinet door and connected to the main board through a detection circuit.

[0010] Preferably, the remote control terminal is connected to several protection screen cabinets and an on-site control system to perform remote monitoring and control at the same time. The remote control terminal is provided with a monitoring window that corresponds one-to-one to the protection screen cabinet and performs operation control, and is also provided with a stop button that can cancel the security arrangements of all screen cabinets in the entire station with one click.

[0011] Preferably, the monitoring window is provided with an indicator light, an operation button and an arming button. The indicator light is provided on the monitoring window to display the opening and closing status of the cabinet door; the operation button is connected to the access control module to control its operation; the arming button is connected to the access control module and the display module and operates them.

[0012] Preferably, the protection screen cabinet is provided with a warning light and an alarm, the warning light and the alarm are connected to the remote control terminal, and the operation of the warning light and the alarm is controlled according to the opening and closing status of the cabinet door.

[0013] Preferably, it also includes a data collection host and a switch, the protection panel cabinet and the local control system are located in the substation and connected by wires, the protection panel cabinet and the local control system are connected to the data collection host and the switch and are connected to the remote control terminal via Ethernet.

[0014] It can be seen from the above description of the utility model that, compared with the prior art, the utility model has the following beneficial effects: by setting a protection panel cabinet outside the substation equipment, and installing the local control system in the substation and connecting it to the protection panel cabinet, the local operation of the protection panel cabinet can be ensured while the safety function can be quickly realized, the stability of the safety function can be ensured, and the protection panel cabinet and the local control system can be controlled by a remote terminal, with the characteristics of remote processing, remote monitoring, and quick arrangement of safety measures, and at the same time, the appearance can be changed according to different working states through the intelligent dimming color glass and the digital display screen to prompt the staff;

[0015] The access control module uses access control sensors to restrict unauthorized persons from opening the cabinet door and approaching the substation equipment, which improves safety. The working mode of the access control module can also be controlled by the light control circuit and the time control circuit at the same time, making the application more flexible and convenient.

[0016] When the remote terminal presses different buttons to put the equipment into normal operation or safety state, the electromagnetic lock locks the cabinet door and opens the access control module. When the cabinet door is forcibly opened, the indicator light turns red, and the warning light and alarm are controlled to work and a pop-up warning is issued on the monitoring window to remind the operation and maintenance personnel to pay attention to abnormal situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of the protection screen cabinet of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the remote control terminal of the utility model;

[0019] Figure 3 This is the control circuit diagram of the utility model;

[0020] In the figure: 1-protection screen cabinet; 11-cabinet body; 12-cabinet door; 13-warning light; 14-alarm; 2-local control system; 21-access control module; 211-access control sensor; 212-electromagnetic lock; 22-display module; 221-intelligent dimming and color-changing glass; 222-holographic imaging projector; 223-digital display screen; 23-local controller; 3-remote control terminal; 31-monitoring window; 32-indicator light; 33-run button; 34-arm button; 35-stop button. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific implementation methods.

[0022] Reference Figures 1 to 3 As shown, a relay protection panel cabinet 1 with safety function includes a protection panel cabinet 1, a local control system 2, a remote control terminal 3, a collection host and a switch.

[0023] The protection panel cabinet 1 is located in the relay protection room of the substation, and comprises a cabinet body 11 , a cabinet door 12 , a warning light 13 and an alarm 14 .

[0024] The local control system 2 is connected to the protection screen cabinet 1, and includes an access control module 21, a display module 22, and a local controller 23. The access control module 21 is arranged on the protection screen cabinet 1 for opening or closing the cabinet door 12 of the protection screen cabinet 1, and includes an access control sensor 211, an electromagnetic lock 212, a main board, and a voltage-stabilized power supply. The access control sensor 211 is arranged on the cabinet door 12 of the protection screen cabinet 1; the electromagnetic lock 212 is arranged on the cabinet door 12 to lock or unlock the cabinet door 12 according to the signal fed back by the access control sensor 211; the main board is connected to the access control sensor 211 and the electromagnetic lock 212, and a light control circuit, a time control circuit, a control circuit, and a detection circuit that can control the working mode of the access control module 21 are integrated thereon; the voltage-stabilized power supply is respectively connected to the access control sensor 211, the electromagnetic lock 212, and the main board to supply energy thereto. The access control module 21 uses the access control sensor 211 to restrict unauthorized persons from opening the cabinet door 12 and approaching the transformer equipment, thereby improving safety. The access control module 21 can also control the working mode of the access control module 21 through the light control circuit and the time control circuit at the same time (limiting the access control module 21 to work in a certain time period of the day in various ways), making the application more flexible and convenient. Specifically, the access control sensor 211 is a photoelectric switch, which is arranged on the cabinet door 12 and connected to the main board through the detection circuit.

[0025] The display module 22 includes an intelligent dimming color-changing glass 221 that can be set on the protection screen cabinet 1 and can be colored and misted to cover the situation inside the cabinet, a holographic imaging projector 222 that is set on the cabinet door 12 to display the scene inside the cabinet, and a digital display screen 223 that can display warning slogans on the protection screen cabinet 1. The intelligent dimming color-changing glass 221 and the digital display screen 223 can change their appearance according to different working states to prompt external personnel, and the internal situation of the protection screen cabinet 1 can be intuitively observed through the holographic imaging projector 222.

[0026] The local controller 23 is connected to the display module 22, and controls the operation of the intelligent dimming color glass 221, the holographic imaging projector 222 and the digital display screen 223 according to the instructions of the remote control terminal 3. The local control system 2 is arranged in the substation and connected to the protection panel cabinet 1, ensuring the local operation of the protection panel cabinet 1 while being able to quickly realize the safety function.

[0027] The remote control terminal 3 is deployed at the operation and maintenance main station. The interface displays the operation status of the cabinets of multiple substations within the jurisdiction. The substation page to be viewed can be switched through the tab. The remote control terminal 3 is connected to several protection cabinets 1 and the local control system 2 respectively, and remote monitoring and control are performed at the same time. The remote control terminal 3 is provided with a monitoring window 31 that corresponds to the protection cabinet 1 one by one and performs operation control, and is also provided with a stop button 35 that is set to cancel the security arrangement of all cabinets in the entire station with one click. The monitoring window 31 is provided with an indicator light 32, a run button 33 and an arming button 34. The indicator light 32 is set on the monitoring window 31 to display the opening and closing status of the cabinet door 12; the run button 33 is connected to the access control module 21 to control its operation; the arming button 34 is connected to the access control module 21 and the display module 22 and operates them. After the operation button 33 is pressed, the equipment operates normally, the cabinet door 12 is locked, and the access control is enabled. When the cabinet door 12 is opened, the indicator light 32 turns red, and an alarm sounds and a specific alarm pops up to remind the operation and maintenance personnel to pay attention to abnormal conditions. Since no security measures are required under normal operation, the operation button 33 only needs to be connected to the access control module 21. When security measures are required, the arming button 34 is pressed to lock the cabinet door 12 and open the access control. The front glass of the screen cabinet is fogged and the words "safety fence" and "equipment in operation" are formed. When the cabinet door 12 is opened, the indicator light 32 turns red, and an alarm sounds and a specific alarm pops up to remind the operation and maintenance personnel to pay attention to abnormal conditions. The display module 22 needs to display warning slogans and images, so the arming button 34 needs to be connected to the access control module 21 and the display module 22 at the same time. Specifically, the warning light 13 and the alarm 14 are connected to the remote control terminal 3, and the warning light 13 and the alarm 14 are controlled to work according to the opening and closing status of the cabinet door 12. When the remote terminal presses different buttons to put the equipment in normal operation or safety state, the electromagnetic lock 212 locks the cabinet door 12 and opens the access control module 21. When the cabinet door 12 is forcibly opened, the indicator light 32 lights up red, and controls the warning light 13 and the alarm 14 to work and pop up a warning window on the monitoring window 31 to remind the operation and maintenance personnel to pay attention to abnormal situations.

[0028] The protection panel cabinet 1 and the local control system 2 are located in the substation and connected through wires. The protection panel cabinet 1 and the local control system 2 are connected to the acquisition host and the switch and are connected to the remote control terminal 3 through Ethernet.

[0029] Control loop such as Figure 3 As shown, there are 4 logics in total.

[0030] Logic 1: Press the arming button 34, the protection cabinet 1 starts the maintenance and security arming, the access control module 21 is activated, the electromagnetic lock 212 is actuated, the intelligent dimming and color-changing glass 221 on the front of the cabinet is energized and atomized, and the digital display screen 223 is activated to display the words "safety fence" and "equipment in operation".

[0031] Logic 2: Press the run button 33, the protection screen cabinet 1 starts the normal operation state, the access control module 21 is started, and the electromagnetic lock 212 is activated.

[0032] Logic 3: When the protection screen cabinet 1 starts maintenance measures or normal operation deployment, the cabinet door 12 is forcibly opened, the alarm 14 and the warning light 13 work, and the remote control terminal 3 alarms and pops up a window to prompt.

[0033] Logic 4: After the protection screen cabinet 1 is started for maintenance, the stop button 35 is pressed, the access control of the cabinet door 12 is not started, the electromagnetic lock 212 does not work, the intelligent dimming and color-changing glass 221 on the front of the screen cabinet is not fogged, and the digital display screen 223 starts to display the words "Working Here".

[0034] By setting up a protection panel cabinet 1 outside the substation equipment, and installing the local control system 2 in the substation and connecting it to the protection panel cabinet 1, the local operation of the protection panel cabinet 1 can be ensured while the safety function can be quickly realized to ensure the stability of the safety function. The protection panel cabinet 1 and the local control system 2 can be controlled by a remote terminal, which has the characteristics of remote processing, remote monitoring, and quick arrangement of safety measures. At the same time, the intelligent dimming color-changing glass 221 and the digital display screen 223 can change the appearance according to different working conditions to prompt the staff.

[0035] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. A relay protection panel cabinet with safety function, characterized in that: It includes a protection screen cabinet, an on-site control system and a remote control terminal. The protection screen cabinet is located in the relay protection room of the substation, and includes a cabinet body and a cabinet door. The on-site control system is connected to the protection screen cabinet, and includes an access control module, a display module and an on-site controller. The access control module is arranged on the protection screen cabinet for opening or closing the cabinet door of the protection screen cabinet. The display module includes an intelligent dimming color-changing glass arranged on the protection screen cabinet, which can change color and fog to shield the situation inside the cabinet, a holographic imaging projector arranged on the cabinet door for displaying the scene inside the cabinet, and a digital display screen arranged on the protection screen cabinet for displaying warning slogans. The on-site controller is connected to the display module, and controls the operation of the intelligent dimming color-changing glass, the holographic imaging projector and the digital display screen according to the instructions of the remote control terminal.

2. The relay protection panel cabinet with safety function according to claim 1 is characterized in that: The access control module includes an access control sensor, an electromagnetic lock, a main board, and a voltage-regulated power supply. The access control sensor is arranged on the door of the protection screen cabinet; the electromagnetic lock is arranged on the door to lock or unlock the door according to the signal fed back by the access control sensor; the main board is connected to the access control sensor and the electromagnetic lock, and is integrated with a light control circuit, a time control circuit, a control circuit, and a detection circuit that can control the working mode of the access control module; the voltage-regulated power supply is respectively connected to the access control sensor, the electromagnetic lock, and the main board to supply energy for them.

3. The relay protection panel cabinet with safety function according to claim 2 is characterized in that: The access control sensor is a photoelectric switch, which is arranged on the cabinet door and connected to the main board through a detection circuit.

4. The relay protection panel cabinet with safety function according to claim 1 is characterized in that: The remote control terminal is connected to several protection screen cabinets and local control systems to perform remote monitoring and control at the same time. The remote control terminal is provided with a monitoring window that corresponds one-to-one to the protection screen cabinet and performs operation control. It is also provided with a stop button that can cancel the security arrangements of all screen cabinets in the entire station with one click.

5. The relay protection panel cabinet with safety function according to claim 4 is characterized in that: The monitoring window is provided with an indicator light, an operation button and an arming button. The indicator light is provided on the monitoring window for displaying the opening and closing status of the cabinet door; the operation button is connected to the access control module to control its operation; the arming button is connected to the access control module and the display module and operates them.

6. The relay protection panel cabinet with safety function according to claim 4 is characterized in that: The protection screen cabinet is provided with a warning light and an alarm, which are connected to the remote control terminal, and the operation of the warning light and the alarm is controlled according to the opening and closing status of the cabinet door.

7. The relay protection panel cabinet with safety function according to claim 1 is characterized in that: It also includes a data collection host and a switch. The protection panel cabinet and the local control system are located in the substation and connected through wires. The protection panel cabinet and the local control system are connected to the data collection host and the switch and are connected to the remote control terminal through Ethernet.

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