CN217563320U - Railway signal computer lab integration intelligence lightning protection device - Google Patents
Railway signal computer lab integration intelligence lightning protection device Download PDFInfo
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- CN217563320U CN217563320U CN202122123326.1U CN202122123326U CN217563320U CN 217563320 U CN217563320 U CN 217563320U CN 202122123326 U CN202122123326 U CN 202122123326U CN 217563320 U CN217563320 U CN 217563320U
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Abstract
The utility model provides an integrated intelligent lightning protection device for a railway signal machine room, which comprises a power supply lightning protection unit, a lightning protection effectiveness detection unit, a ground impedance and electrical integrity detection unit, a core processing unit, a human-computer interaction unit and a power supply module; the power supply lightning protection unit, the lightning protection effectiveness detection unit, the grounding impedance and electrical integrity detection unit are all connected with the core processing unit, the core processing unit is connected with the human-computer interaction unit, and the power supply module is connected with all other units and supplies power. The utility model has the advantages that: railway signal computer lab has the integrated lightning protection equipment that lightning protection, lightning protection validity detected, ground connection impedance detect and ground connection electrical integrity detected, can reduce the processing time when breaking down to comprehensive diagnosis, the aassessment of power lightning protection and ground connection situation in the railway signal computer lab, effectively avoids can causing great influence to the railway transportation.
Description
Technical Field
The utility model belongs to the technical field of low-voltage apparatus, concretely relates to railway signal computer lab integration intelligence lightning protection device.
Background
With the high-speed development of electrified railways in China, railway transportation becomes a main transportation mode and a main tool for freight transportation when people go out, and the safety of the railway transportation is very important, so that higher requirements are put forward on the reliability and the safety of a railway signal system.
The lightning protection of the power supply system of the existing railway signal machine room is that a power supply lightning protection box is arranged at the house-to-house power supply end, a thermal trip device of a lightning protection module corresponding to each phase line is linked with a microswitch, when the lightning protection module is degraded, damaged and turned over, a switching value alarm signal is output, an alarm lamp on a panel of the lightning protection box is lightened, an alarm sound is sent out, and the alarm sound can be obtained only by manual on-site inspection; a lightning stroke counter is arranged on the lightning protection ground wire, lightning current larger than 0.5KA is counted, the intensity of the lightning current is not detected, the lightning stroke occurrence time is not recorded, and the lightning stroke counter cannot be used for guiding the later lightning protection transformation; for the grounding impedance of the lightning protection grounding collection row of the signal machine room, manual detection is carried out once every half year through a megger type grounding impedance detector, and the grounding impedance can not be known in time when unqualified grounding impedance occurs; the electrical integrity from the grounding wire of the lightning protection module to the lightning protection grounding collection bar is not detected, and whether the lightning current can be smoothly released or not is unknown; the lightning protection module is connected in parallel on a power line, but cannot know whether the power line is effectively connected or not. The above problems determine the effectiveness and continuity of lightning protection of the power supply of the signal machine room, and influence the reliable operation of a railway signal system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a railway signal computer lab integration intelligent lightning protection device, including power lightning protection unit, lightning protection validity detecting element, ground impedance and electrical integrity detecting element, core processing unit, man-machine interaction unit and power module;
the power supply lightning protection unit, the lightning protection effectiveness detection unit and the grounding impedance and electrical integrity detection unit are all connected with the core processing unit, the core processing unit is connected with the human-computer interaction unit, and the power supply module is connected with all other units and supplies power;
the power supply lightning protection unit is arranged in the box body and is used for lightning stroke protection and ground short circuit protection on the machine room household power supply system;
the lightning protection effectiveness detection unit is arranged in the box body and connected with the power supply lightning protection unit, and is used for detecting the state of the power supply lightning protection unit and whether the power supply lightning protection unit is effectively connected to a power supply line;
the grounding impedance and electrical integrity detection unit is arranged in the box body and is used for monitoring the grounding impedance of the lightning protection grounding collection bar of the machine room and the impedance value from the power supply lightning protection box to the lightning protection grounding collection bar;
the core processing unit is arranged in the box body and used for collecting, calculating, analyzing and storing information of other units and realizing communication with a background network manager;
the man-machine interaction unit is arranged on the box door and used for displaying local real-time monitoring data, historical data and alarm information;
the power supply module is arranged in the box body and used for providing working power supply for each module unit.
Preferably, the power lightning protection unit comprises a lightning protection module, a thermal trip device, a fuse type backup protection device and a lightning protection base; the lightning protection module, the thermal tripping device and the fuse-type backup protection device are connected in series and inserted on the lightning protection base, and the power supply lightning protection unit is connected in parallel on a power supply system of an introduced signal machine room to prevent electric equipment in the machine room from being damaged due to surge impact introduced by a power cable.
Preferably, the lightning protection effectiveness detection unit is connected with the power supply lightning protection unit, and the lightning protection effectiveness detection unit comprises a thermal trip device action detection sensor, a voltage detection sensor, a lightning stroke detection sensor and a lightning protection detection module; the thermal trip device motion detection sensor is arranged at the opposite position of the thermal trip device.
The lightning protection effectiveness detection unit detects whether the lightning protection module is damaged or not and whether the lightning protection module is effectively connected into a power supply circuit or not, and simultaneously monitors the lightning strike condition including lightning current, polarity and occurrence time in the power supply circuit.
Preferably, the ground impedance and electrical integrity detection unit comprises a ground impedance test module, an electrical integrity test module and a test control module; the grounding impedance and electrical integrity detection unit supports testing the impedance value from the grounding wire of the power supply lightning protection module to the lightning protection grounding bar by switching and testing the grounding impedance of the lightning protection grounding collection bar, and the detection circuit and the field ground grid are kept in a separation state when the detection circuit is not tested.
Preferably, the core processing unit is responsible for storing, calculating and analyzing the real-time data acquired by each functional unit, configuring parameters and alarm threshold values and outputting alarm information; RS485 and RJ45 communication interfaces are provided, a Modbus standard communication protocol is supported, and networking communication with superior equipment is supported;
preferably, the human-computer interaction unit comprises a liquid crystal display screen, an indicator light and an operation key; local man-machine interaction management is achieved through operation keys, a liquid crystal display screen and an indicator lamp, and real-time monitoring data, historical data and alarm information are checked locally.
Preferably, the power supply module provides working power supply for each module unit, and converts AC220V power supply into DC12V power supply.
Preferably, the box body is connected with the box door in an opening and closing manner, a wire inlet is formed in the upper part of the box body, and a wire outlet is formed in the lower part of the box body.
The power supply lightning protection unit adopts an integrated structure.
The power supply module is a switch power supply module YJG5201.
The utility model has the advantages that:
(1) The power supply lightning protection box installed in the existing railway signal machine room has a remote monitoring function, and after the lightning protection module is damaged, an alarm signal can be uploaded to a background network manager, so that the damage of the lightning protection module can be known in time, and the occurrence of a neutral period of the signal machine room without power supply lightning protection is avoided;
(2) The lightning stroke frequency is recorded, the lightning current intensity, polarity, waveform, occurrence time and the like of each lightning stroke are monitored, the lightning stroke distribution condition of the house can be conveniently and accurately analyzed in the follow-up process, and the lightning protection upgrading and reconstruction in the later process are facilitated;
(3) The grounding impedance of the power supply lightning protection grounding bar and the lightning protection grounding electrical integrity of the power supply lightning protection box are monitored on line, so that the condition that the lightning protection grounding impedance and the impedance of the power supply lightning protection box connected to the lightning protection grounding busbar are unqualified can be found in time, and the power supply equipment is prevented from being damaged due to the fact that lightning current cannot be discharged when the lightning is struck;
(4) The detection device can detect whether the power supply lightning protection module is effectively connected in parallel in a power supply circuit, and can give an alarm in time when backup protection (a fuse or a circuit breaker) of the lightning protection module is disconnected or the connection wire of the lightning protection module and the power supply circuit drops, so that electric equipment in a signal machine room is effectively protected;
(5) The railway signal machine room is provided with the integrated lightning protection equipment for lightning protection, lightning protection effectiveness detection, grounding impedance detection and grounding electrical integrity detection, can comprehensively diagnose and evaluate the lightning protection and grounding conditions of the power supply in the railway signal machine room, reduces the handling time when a fault occurs, and effectively avoids great influence on railway transportation;
(6) A plurality of devices are combined into a box body, so that the occupied installation space of a machine room is reduced, and the layout and routing of the equipment of the machine room are more standard; each functional unit is subjected to modular design, and is suitable for different field requirements; the structural design is wall-embedded installation, and the wiring is laid in the wall, so that the internal space of a machine room is not occupied.
Drawings
Fig. 1 is a schematic structural view of an integrated intelligent lightning protection device for a railway signal machine room according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a box door of the integrated intelligent lightning protection device for a railway signal machine room according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a box body of the integrated intelligent lightning protection device for a railway signal machine room according to the embodiment of the present invention;
fig. 4 is a schematic structural view of the grounding impedance and electrical integrity detection unit of the integrated intelligent lightning protection device for railway signal machine room according to the embodiment of the present invention;
fig. 5 is a schematic structural view of a grounding impedance testing module of the integrated intelligent lightning protection device for a railway signal machine room according to an embodiment of the present invention;
fig. 6 is an installation schematic diagram of an electrical integrity testing module of the integrated intelligent lightning protection device for railway signal machine room in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a power module of the integrated intelligent lightning protection device for a railway signal machine room according to an embodiment of the present invention;
in the drawings: 1. the device comprises a box body, 1-1 wire inlet, 1-2 wire outlet, 1-3 mounting plates, 2 box door, 3 power supply lightning protection unit, 4 lightning protection effectiveness detection unit, 5 grounding impedance and electrical integrity detection unit, 5-1 test control module, 5-2 grounding impedance test module, 5-3 electrical integrity test module, 5-3-1 equipotential tester, 5-3-2 electrical parameter electrode, 6 core processing unit, 7 human-computer interaction unit, 7-1 liquid crystal display screen, 7-2 indicator light, 7-3 operation key and 8 power supply module.
Detailed Description
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings.
In the drawings: 1. the device comprises a box body, 1-1 parts of a wire inlet, 1-2 parts of a wire outlet, 1-3 parts of a mounting plate, 2 parts of a box door, 3 parts of a power supply lightning protection unit, 4 parts of a lightning protection effectiveness detection unit, 5 parts of a grounding impedance and electrical integrity detection unit, 5-1 parts of a test control module, 5-2 parts of a grounding impedance test module, 5-3 parts of an electrical integrity test module, 5-3-1 parts of an equipotential tester, 5-3-2 parts of an electrical parameter electrode, 6 parts of a core processing unit, 7 parts of a human-computer interaction unit, 7-1 parts of a liquid crystal display screen, 7-2 parts of an indicator light, 7-3 parts of an operation key and 8 parts of a power supply module;
the integrated intelligent lightning protection device for the railway signal machine room comprises a box body, a box door, a power supply lightning protection unit, a lightning protection effectiveness detection unit, a grounding impedance and electrical integrity detection unit, a core processing unit, a human-computer interaction unit and a power supply module; the power supply lightning protection unit, the lightning protection effectiveness detection unit, the grounding impedance and electrical integrity detection unit, the core processing unit and the power supply module are arranged in the box body through the mounting plate.
The power supply lightning protection unit, the lightning protection effectiveness detection unit and the grounding impedance and electrical integrity detection unit are all connected with the core processing unit, the core processing unit is connected with the human-computer interaction unit, and the power supply module is connected with all other units and supplies power;
the power supply lightning protection unit is arranged in the box body and is used for lightning stroke protection and ground short circuit protection on the machine room household power supply system; the power supply lightning protection unit adopts an integrated structure.
The lightning protection effectiveness detection unit is arranged in the box body and connected with the power supply lightning protection unit, and is used for detecting the state of the power supply lightning protection unit and whether the power supply lightning protection unit is effectively connected to a power supply line;
the grounding impedance and electrical integrity detection unit is arranged in the box body and is used for monitoring the grounding impedance of the lightning protection grounding collection bar of the machine room and the impedance value from the power supply lightning protection box to the lightning protection grounding collection bar;
the core processing unit is arranged in the box body and used for collecting, calculating, analyzing and storing information of other units and realizing communication with a background network manager;
the man-machine interaction unit is arranged on the box door and used for displaying local real-time monitoring data, historical data and alarm information;
the power supply module is arranged in the box body and used for providing working power supply for each module unit.
The power supply lightning protection unit comprises a lightning protection module, a thermal trip device, a fuse type backup protection device and a lightning protection base; the lightning protection module, the thermal tripping device and the fuse-type backup protection device are connected in series and then inserted on the lightning protection base, and the power supply lightning protection unit is connected in parallel on a power supply system introduced into a signal machine room, so that the electric equipment in the machine room is prevented from being damaged due to surge impact introduced by a power cable.
The lightning protection effectiveness detection unit is connected with the power supply lightning protection unit and comprises a thermal tripping device action detection sensor, a voltage detection sensor, a lightning stroke detection sensor and a lightning protection detection module; the thermal trip device motion detection sensor is arranged at a position opposite to the thermal trip device.
The lightning protection effectiveness detection unit detects whether the lightning protection module is damaged or not and loses efficacy or not, whether the lightning protection module is effectively connected into a power supply circuit or not, and the lightning protection effectiveness detection unit simultaneously monitors the lightning strike condition including lightning current, polarity and occurrence time in the power supply circuit.
The grounding impedance and electrical integrity detection unit comprises a grounding impedance test module, an electrical integrity test module and a test control module; the grounding impedance and electrical integrity detection unit supports testing of the grounding impedance of the lightning protection grounding collection bar through switching, tests the impedance value from the grounding wire of the power supply lightning protection module to the lightning protection grounding bar, and keeps the detection circuit in a separation state from the field ground grid when the detection circuit is not tested.
The test control module is connected with the grounding impedance test module and the electrical integrity test module, and the test control module adopts a relay to realize the switching of the grounding impedance test module and the electrical integrity test module
The grounding impedance test module comprises a first detection pole group and a second detection pole group; the first detection pole group is connected with the ground grid, and the second detection pole group is connected with the ground.
Specifically, the grounding grid and the ground are respectively connected through a first detection pole group and a second pole group for detection, and a three-level straight line method is adopted for measuring the grounding resistance.
The first detection pole group comprises a current pole and a voltage pole, and the second detection pole group comprises a current pole and a voltage pole, so that current and voltage value detection is respectively carried out on the earth screen and the earth.
The electrical integrity testing module comprises an equipotential tester and an electrical parameter electrode; the electric parameter electrode is connected with the equipotential tester, and the equipotential tester is used for measuring the resistance value between the electrical equipment and the ground grid.
Specifically, the resistance of the connecting conductors between various electrical devices and the earth grid earth stage is tested by the equipotential tester in a direct current mode, so that the test of electrical integrity is realized, and the tester is accurate and reliable by using a precise four-wire method.
The core processing unit is responsible for storing, calculating and analyzing the real-time data acquired by each functional unit, configuring parameters and alarm thresholds and outputting alarm information; providing a communication interface, supporting standard communication protocols such as Modbus and the like, and supporting networking communication with superior equipment; the core processing unit adopts STM32F103 chip
The man-machine interaction unit comprises a liquid crystal display screen, an indicator light and an operation key; local man-machine interaction management is achieved through operation keys, a liquid crystal display screen and an indicator lamp, and real-time monitoring data, historical data and alarm information are checked locally.
The power supply module is a switching power supply module YJG5201. The power supply module provides working power supply for each module unit, and converts AC220V power supply into DC12V power supply. The equipment is powered by 220V alternating current commercial power, and a 12V direct current power supply is obtained by voltage reduction, rectification and filtering processing through a switching power supply module YJG5201 and is matched with a storage battery for use to form an uninterruptible output power supply.
The upper part of the box body is provided with a wire inlet, and the lower part of the box body is provided with a wire outlet for inlet and outlet of wires.
Example 1
The integrated intelligent lightning protection device for the railway signal machine room comprises a power supply lightning protection unit, a lightning protection effectiveness detection unit, a grounding impedance and electrical integrity detection unit, a core processing unit, a man-machine interaction unit and a power supply module;
the power supply lightning protection unit is used for carrying out lightning stroke protection and ground short circuit protection on the machine room home-entry power supply system; the lightning protection effectiveness detection unit is used for detecting whether each lightning protection module is inserted into, pulled out of and turned over by the thermal trip device, and detecting whether the lightning protection module is effectively connected to a power line;
the grounding impedance and electrical integrity detection unit is used for monitoring the grounding impedance of the lightning protection grounding collection bar of the machine room and the impedance value from the power supply lightning protection box to the lightning protection grounding collection bar;
the core processing unit is used for collecting, calculating, analyzing and storing information of other units and realizing communication with a background network manager;
the human-computer interaction unit is used for displaying local real-time monitoring data, historical data and alarm information; the power module is used for providing working power for each module unit.
Specifically, a plurality of devices are combined into one box body, so that the occupied installation space of a machine room is reduced, and the layout and routing of the equipment of the machine room are more standard; each functional unit is subjected to modular design, and is suitable for different field requirements; the structural design is wall-embedded installation, and the wiring is laid in the wall, so that the internal space of a machine room is not occupied.
Specifically, a power supply lightning protection function is provided, a Kelvin wiring method is adopted to connect a power line of a machine room in parallel, the distance from the power line to a lightning protection ground wire is shortened, and the lightning current can be released as soon as possible; whether the lightning protection module is effectively connected with a power supply circuit or not and whether the lightning protection module is damaged or pulled out due to thermal tripping or not are detected on line, so that the reliability and continuity of lightning protection are ensured; recording the intensity, polarity and occurrence time of lightning current in a lightning strike in real time, and accurately analyzing the lightning strike risk of a machine room; detecting whether the grounding impedance of the lightning protection grounding collection bar is qualified or not, and ensuring that the lightning current can be quickly discharged to the ground; whether the impedance value from the grounding wire of the lightning protection module to the lightning protection grounding collection row is qualified or not is detected, and effective access of the lightning protection grounding wire is ensured.
Specifically, the information such as recorded lightning current intensity, polarity, occurrence time and the like is collected through a high-frequency sampling circuit and a wavelet correction algorithm, the lightning stroke condition of a power supply system of a machine room is analyzed, the lightning stroke risk of the machine room is evaluated, and a user is guided to carry out lightning protection maintenance and modification;
specifically, safe grounding impedance detection technologies such as low current and light access are adopted, lightning stroke detection data are combined to comprehensively analyze the change trend of the grounding impedance of the lightning protection grounding bar, and the grounding hidden danger is found to automatically alarm;
through the core processing unit, parameters of each module unit issued by the background network management platform are configured, an instruction is sent to each module unit to collect monitoring information, the grounding impedance and electrical integrity detection unit is controlled to collect data in the maintenance skylight period of each station of the railway line, and the collected information is timely uploaded to the background network management platform.
Specifically, the integrated intelligent lightning protection device for the railway signal machine room is provided with a local man-machine interaction screen, so that the on-site installation, debugging, use and maintenance are facilitated.
The lightning protection effectiveness detection unit and the grounding impedance and electrical integrity detection unit are communicated with the core processing unit and the man-machine interaction unit through a bus or a switching value signal, and the man-machine interaction unit and maintenance personnel complete man-machine interaction, so that data query and instruction issuing functions are realized.
The lightning protection effectiveness detection unit comprises a thermal trip device action detection sensor, a voltage detection sensor, a lightning stroke detection sensor, a lightning protection detection module and the like, detects whether the lightning protection module is pulled out, whether the thermal trip device acts, whether a power line is effectively connected and the like, simultaneously monitors the lightning stroke condition in the power line, and records the intensity, polarity and occurrence time of lightning current;
the grounding impedance and electrical integrity detection unit comprises a grounding impedance test module, an electrical integrity test module and a test control module, and supports the test of the grounding impedance of the lightning protection grounding collection bar in the maintenance skylight period of each station through the control of the test control module, the impedance value from the grounding wire of the power supply lightning protection module to the lightning protection grounding bar is tested, and the detection circuit and the field grounding grid are kept in a connection and disconnection state when the test is not carried out;
the core processing unit comprises a core main control board and a communication board, and is used for controlling and acquiring monitoring data of each functional unit, and storing, calculating and analyzing the monitoring data; configuring parameters and alarm thresholds issued by a background network management platform, and outputting alarm information; providing a communication interface, supporting standard communication protocols such as Modbus and the like, and uploading the data of each acquired functional unit to a background network management platform;
the man-machine interaction unit comprises a core board, a liquid crystal display screen, an indicator light and an operation key, and the display content of the liquid crystal display screen is checked through checking the indicator light and the manual operation key, so that the real-time monitoring data, the historical data and the alarm information are locally checked.
The power supply module comprises a power supply conversion module and a connecting terminal, and converts an AC220V power supply into a DC12V power supply to provide working power supply for each module unit.
Compared with the prior art, the technology has a remote monitoring function, and the alarm signal can be uploaded to a background network manager after the lightning protection module is damaged, so that the damage of the lightning protection module can be known in time, and a null period that no power supply is lightning protected in a signal machine room is avoided;
the lightning stroke frequency is recorded, the lightning current intensity, polarity, waveform, occurrence time and the like of each lightning stroke are monitored, the lightning stroke distribution condition of the house can be conveniently and accurately analyzed subsequently, and the lightning protection upgrading and reconstruction in the later period are facilitated;
the grounding impedance of the power supply lightning protection grounding bar and the lightning protection grounding electrical integrity of the power supply lightning protection box are monitored on line, so that the condition that the lightning protection grounding impedance and the impedance of the power supply lightning protection box connected to the lightning protection grounding busbar are unqualified can be found in time, and the power supply equipment is prevented from being damaged due to the fact that lightning current cannot be discharged when the lightning is struck;
the detection device can detect whether the power supply lightning protection module is effectively connected in parallel in a power supply circuit, and can give an alarm in time when backup protection (a fuse or a circuit breaker) of the lightning protection module is disconnected or the connection wire of the lightning protection module and the power supply circuit drops, so that electric equipment in a signal machine room is effectively protected;
the railway signal machine room is provided with the integrated lightning protection equipment for lightning protection, lightning protection effectiveness detection, grounding impedance detection and grounding electrical integrity detection, can comprehensively diagnose and evaluate the lightning protection and grounding conditions of the power supply in the railway signal machine room, reduces the handling time when a fault occurs, and effectively avoids great influence on railway transportation;
a plurality of devices are combined into one box body, so that the occupied installation space of a machine room is reduced, and the layout and routing of the devices of the machine room are more standard; each functional unit is subjected to modular design, and is suitable for different field requirements; the structural design is wall-embedded installation, and the wiring is laid in the wall, so that the internal space of a machine room is not occupied.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The integrated intelligent lightning protection device for the railway signal machine room comprises a box body and a box door which are hinged, and is characterized by further comprising a power supply lightning protection unit, a lightning protection effectiveness detection unit, a grounding impedance and electrical integrity detection unit, a core processing unit, a human-computer interaction unit and a power supply module;
the power supply lightning protection unit, the lightning protection effectiveness detection unit and the grounding impedance and electrical integrity detection unit are all connected with the core processing unit, the core processing unit is connected with the human-computer interaction unit, and the power supply module is connected with all other units and supplies power;
the power supply lightning protection unit is arranged in the box body and is used for lightning stroke protection and ground short circuit protection on the machine room household power supply system;
the lightning protection effectiveness detection unit is arranged in the box body and connected with the power supply lightning protection unit, and is used for detecting the state of the power supply lightning protection unit and whether the power supply lightning protection unit is effectively connected to a power supply line;
the grounding impedance and electrical integrity detection unit is arranged in the box body and is used for monitoring the grounding impedance of the lightning protection grounding collection bar of the machine room and the impedance value from the power supply lightning protection box to the lightning protection grounding collection bar;
the core processing unit is arranged in the box body and used for collecting, calculating, analyzing and storing information of other units and realizing communication with a background network manager;
the man-machine interaction unit is arranged on the box door and used for displaying local real-time monitoring data, historical data and alarm information;
the power supply module is arranged in the box body and used for providing working power supply for each module unit;
the power supply lightning protection unit comprises a lightning protection module, a thermal tripping device, a fuse-type backup protection device and a lightning protection base; the lightning protection module, the thermal tripping device and the fuse type backup protection device are inserted in series on the lightning protection base, and the power supply lightning protection unit is connected in parallel on a power supply system introduced into a signal machine room to prevent electric equipment in the machine room from being damaged due to surge impact introduced by a power cable;
the lightning protection effectiveness detection unit is connected with the power supply lightning protection unit and comprises a thermal trip device action detection sensor and a lightning parameter sensor, the thermal trip device action detection sensor is arranged in the power supply lightning protection unit and at the opposite position of the thermal trip device, and the lightning parameter sensor comprises a voltage detection sensor, a lightning stroke detection sensor and a lightning protection detection module; the lightning protection effectiveness detection unit detects that each lightning protection module is inserted, pulled out and turned over by the thermal tripping device, detects whether the lightning protection module is damaged or failed and whether the lightning protection module is effectively connected into a power circuit, and simultaneously monitors the lightning stroke condition including lightning current, polarity and occurrence time in the power circuit;
the ground impedance and electrical integrity detection unit comprises a ground impedance test module, an electrical integrity test module and a test control module; the grounding impedance and electrical integrity detection unit supports testing of the grounding impedance of the lightning protection grounding collection bar through switching, tests the impedance value from the grounding wire of the power supply lightning protection module to the lightning protection grounding bar, and keeps the detection circuit in a separation state from the field ground grid when the detection circuit is not tested.
2. The railway signal machine room integrated intelligent lightning protection device according to claim 1, wherein the core processing unit is responsible for storing, calculating and analyzing real-time data collected by each functional unit, configuring parameters and alarm threshold values, outputting alarm information, providing a communication interface, supporting a Modbus standard communication protocol, and supporting networking communication with superior equipment.
3. The railway signal machine room integrated intelligent lightning protection device according to claim 1, wherein the human-computer interaction unit comprises a liquid crystal display screen, an indicator light and an operation key; local man-machine interaction management is achieved through operation keys, a liquid crystal display screen and an indicator lamp, and real-time monitoring data, historical data and alarm information are checked locally.
4. The integrated intelligent lightning protection device for the railway signal machine room as claimed in claim 1, wherein the power supply module provides working power supply for each module unit, and converts AC220V power supply into DC12V power supply.
5. The integrated intelligent lightning protection device for railway signal machine rooms according to claim 1, wherein a wire inlet is formed in the upper part of the box body, and a wire outlet is formed in the lower part of the box body.
6. The integrated intelligent lightning protection device for railway signal machine room according to claim 1, wherein the power lightning protection unit is of an integrated structure.
7. The integrated intelligent lightning protection device for the railway signal machine room as claimed in claim 1, wherein the power module is a switch power module and adopts YJG5201 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122123326.1U CN217563320U (en) | 2021-09-03 | 2021-09-03 | Railway signal computer lab integration intelligence lightning protection device |
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| CN202122123326.1U CN217563320U (en) | 2021-09-03 | 2021-09-03 | Railway signal computer lab integration intelligence lightning protection device |
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| CN217563320U true CN217563320U (en) | 2022-10-11 |
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