Low-voltage electric cabinet detection system

Abstract

The utility model relates to the technical field of power distribution cabinet detection, in particular to a low-voltage electric cabinet detection system, which comprises data acquisition and transmission equipment, communication equipment, low-voltage components and energy management system software, and the energy management system software runs in the data acquisition and transmission equipment. The data acquisition and transmission equipment is connected with the low-voltage component through a communication interface of the communication equipment; in the low-voltage electric cabinet detection system, communication equipment is designed through network architecture topology of a plurality of low-voltage components, and data acquisition, processing and management and control are carried out by using data acquisition and transmission equipment and energy management system software. The functions of real-time monitoring and alarming, fault positioning and quick response, data analysis, integration and display and remote management operation on each device in the low-voltage electric cabinet are realized, and the effects of improving the operation efficiency, reducing the maintenance cost, enhancing the system reliability and optimizing the resource configuration are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinet detection, in particular to a low-voltage power cabinet detection system. Background Art

[0002] Low-voltage power distribution systems play a vital role in modern industrial, commercial and residential areas. With the development of society and the increase in electricity demand, the complexity and importance of low-voltage power distribution systems have become increasingly prominent. Low-voltage power distribution systems distribute electrical energy from distribution transformers or other power supply equipment to various electrical equipment to ensure the reliability and safety of power supply. However, various low-voltage components such as circuit breakers, contactors, and relays in low-voltage power distribution systems have a certain service life, and are easily affected by environmental, load and other factors during long-term use, resulting in failure or damage. Failure or damage of low-voltage components often leads to the paralysis of local or global low-voltage power distribution systems, thereby affecting the normal production and life. Due to the lack of real-time monitoring and fault warning mechanisms in traditional low-voltage power distribution systems, fault points are often not discovered and handled in time, resulting in equipment shutdown, production stagnation, and even serious economic losses and safety hazards.

[0003] The existing low-voltage electrical cabinet detection system has problems such as component aging and insufficient fault detection leading to system operation paralysis, insufficient monitoring of environmental factors leading to unstable and unsafe system operation, inability to achieve remote monitoring and management operations, inability to accurately locate fault points and failure to handle them in a timely manner, resulting in downtime and economic losses.

[0004] Therefore, it is urgent to design a low-voltage electrical cabinet detection system that can perform comprehensive and real-time monitoring and fault detection on the low-voltage power distribution system to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a low-voltage electrical cabinet detection system to solve the technical problems mentioned in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model discloses a low-voltage electric cabinet detection system, comprising a data acquisition and transmission device, a communication device, low-voltage components and an energy management system software, and the energy management system software runs inside the data acquisition and transmission device, and the data acquisition and transmission device is connected to the low-voltage components through the communication interface of the communication device;

[0007] The data acquisition and transmission device is connected to the energy management system software through the communication device, transmits the collected data to the server for processing, and centrally processes, stores and manages the data, while providing remote access and control functions;

[0008] The communication device provides a data input and output channel for the data acquisition and transmission device, the energy management system software and the low-voltage components, thereby realizing data communication between different devices;

[0009] The low-voltage components send power parameters and status information to the data acquisition and transmission device through the communication device, and monitor and record power parameters, perform protection functions, and provide tripping status and alarm information;

[0010] The energy management system software interacts with the low-voltage components through the communication equipment, provides real-time data processing, display, storage and control functions through flexible configuration and arrangement, and further realizes real-time monitoring and fault warning.

[0011] Optionally, the data acquisition and transmission equipment includes a power configuration tool, power monitoring and management equipment, and the power configuration tool is used to configure and manage the power supply mode of each power supply in the low-voltage distribution cabinet system, and can flexibly configure power supply parameters according to different equipment requirements to improve the compatibility and adaptability of the detection system, and ensure that the data acquisition and transmission equipment, communication equipment, low-voltage components and energy management system software equipment can operate stably;

[0012] The power monitoring and management equipment monitors the operating status of the voltage, current, power and frequency of each device in the low-voltage electrical cabinet in real time, collects and transmits operating status data, provides intuitive monitoring information on the display interface, analyzes the collected data, and generates reports and historical curves to provide basic data for fault detection and early warning of the detection system, as well as trend analysis and fault prediction for the long-term operating status of the low-voltage electrical cabinet system. When an abnormal state or fault is detected, an alarm signal can also be issued to prompt the user to handle it.

[0013] Optionally, the communication equipment includes a bus COM communication module, an Ethernet ModbusTCP / IP communication protocol, and a Modbus RTUR S485 serial communication protocol, which are used to realize efficient transmission, real-time monitoring and remote management of data in the low-voltage electric cabinet detection system;

[0014] The bus COM communication module provides a stable and reliable communication channel, which brings together data acquisition and transmission equipment and low-voltage component monitoring and acquisition data into a bus network, facilitates real-time data exchange and centralized management, and is used to integrate several low-voltage components and simplify the detection system structure and wiring;

[0015] The Ethernet ModbusTCP / IP communication protocol realizes high-speed data transmission through Ethernet and supports TCP / IP protocol. It can perform data transmission and remote access through standard network devices such as routers and switches to support cross-platform communication and data sharing, and is used to enhance the interoperability, compatibility, real-time and management convenience of the detection system.

[0016] The Modbus RTUR S485 serial communication protocol supports RS485 interface and supports multi-point communication, realizes long-distance data transmission and allows multiple devices to share one bus for data transmission, and has good anti-interference ability.

[0017] Optionally, the low-voltage components include a circuit breaker and an electric energy metering device, and the circuit breaker includes a molded case circuit breaker MCCB, an MCB miniature circuit breaker, a 3VA circuit breaker, a 3VL circuit breaker, and a 3WT circuit breaker. The molded case circuit breaker MCCB has a high breaking capacity and provides circuit protection for protecting circuits and equipment from overload, short circuit, and current leakage.

[0018] The MCB miniature circuit breaker is used to protect the branch circuit in the low-voltage electrical cabinet from overload and short circuit, and has the characteristics of small size and low cost;

[0019] The 3VA circuit breaker is designed according to the settings and requirements of the equipment in the low-voltage electrical cabinet, providing comprehensive circuit protection against overload, short circuit and leakage, with high breaking capacity and programmable functions;

[0020] The 3VL circuit breaker is a high-performance circuit breaker that provides reliable overload and short-circuit protection;

[0021] The 3WT circuit breaker has a high breaking capacity and provides comprehensive power protection and management functions under high load conditions to ensure the overall safety of the detection system;

[0022] The electric energy metering device includes a 7KM PAC RS485 meter, a 7KM PAC 4200 meter, a 7KM PAC3200 meter, a 7KM PAC 3100 meter, a PAC 3220 meter, a PAC 1600 meter, a PAC 2200 meter, a PAC 3000 meter, and a PAC 4200 meter, and the 7KM PAC RS485 meter is an electric energy metering device that realizes data communication and remote monitoring through an RS485 interface, and is used to monitor and record the electric energy consumption of each device in a low-voltage electrical cabinet, and provide data support for energy management and optimization;

[0023] The 7KM PAC 4200 meter supports several communication protocols and interfaces to provide detailed power data in low voltage cabinets;

[0024] The 7KM PAC 3200 meter measures the electrical parameters of voltage, current and power in real time and is used to comprehensively monitor the operating status data of the low-voltage electrical cabinet system;

[0025] The 7KM PAC 3100 meter is a basic electric energy metering device that measures and monitors the electric energy of various devices in the medium and low voltage electrical cabinet system in real time;

[0026] The PAC 3220 meter is a mid-range energy metering device with measurement and communication functions for providing accurate energy measurement and data communication;

[0027] The PAC 1600 meter is an entry-level energy metering device that provides basic energy measurement functions;

[0028] The PAC 2200 meter is a multifunctional energy meter with comprehensive measurement and communication functions for comprehensive monitoring and recording of energy consumption, supporting detailed energy management in detection systems;

[0029] The PAC 3000 meter is a high-precision electric energy metering device that provides power parameter measurement and data communication functions for optimizing detection system optimization and energy efficiency management;

[0030] The PAC 4200 electric meter is an advanced electric energy metering device that provides high-precision measurement of electric parameters and is used to provide comprehensive electric energy data support for complex power systems.

[0031] Optionally, the low-voltage electric cabinet detection system includes data monitoring, data sorting and network architecture for the equipment detection process, and the data monitoring is to collect measured quantities from low-voltage components and read the voltage, current, tripping status, alarm information, and power status values ​​of the equipment in operation in real time to ensure timely discovery and handling of abnormal situations, transmit the low-voltage electric cabinet equipment parameters on the detection site to the controller through communication equipment for real-time processing and analysis, monitor the use of each device, and determine whether there are safety hazards to ensure the safe operation of each device and prevent potential safety hazards, and the controller obtains alarm information and fault points from the PC for the first time based on the current status of the operating parameters of the low-voltage electric cabinet equipment on the real-time monitoring site, so as to improve the fault response speed and reduce downtime;

[0032] The data arrangement is that the controller displays the received data according to a predefined standard view, displays the measured quantities of low-voltage components of the communication transmission processing data from the communication equipment in a table form, and arranges the measured quantities into an EXCEL file according to the recording timestamp and data information to facilitate the tracing and analysis of historical data, and archives the read data, saves the limit value and the curve interface for display, which is convenient for monitoring and analysis, and then generates corresponding reports according to the predefined rates and archived energy data to provide energy management and decision support;

[0033] The network architecture is that in addition to communication equipment, it can also communicate through twisted pair to Ethernet, and is configured with an OPC network server, compatible with the OPC protocol, for data interaction and information transmission, that is, using communication equipment to build data acquisition and transmission equipment, low-voltage components and run energy management system software, and can display the measured quantity of any low-voltage component through communication equipment, so as to centrally manage and monitor the low-voltage electrical cabinet detection data and improve the management efficiency of the detection system.

[0034] Optionally, the energy management system software is an integrated driver, which configures a dedicated driver for automatic identification of data acquisition and transmission equipment and low-voltage components in the energy management system software, so that the data acquisition and transmission equipment can automatically collect energy data from low-voltage components through communication equipment, without the need for users to perform additional configuration work, which not only reduces the possibility of human configuration errors, but also improves the reliability and stability of the detection system; the energy management system software provides an intuitive graphical interface with preset display positions of key measurement values, which users can easily view and manage, allowing users to monitor the current status in real time on the PC side, and can customize views as needed, obtain alarm information and fault points in the first place, reducing the workload of initial settings while improving the response speed and management efficiency of the detection system; and the energy management system software has a unified data interface and is compatible with multiple communication protocols such as ModbusTCP / IP, Modbus RTU and OPC, centrally managing and interacting with data collected by data acquisition and transmission equipment, further improving the efficient operation of the detection system.

[0035] Compared with the prior art, the utility model has the following advantages:

[0036] In the low-voltage cabinet detection system, the network architecture topology design communication equipment is carried out for several low-voltage components, and the data acquisition and transmission equipment and energy management system software are used for data acquisition, processing and control, so as to realize the functions of real-time monitoring and alarm, fault location and rapid response, data analysis and integrated display, and remote management operation of each device in the low-voltage cabinet. The data from different devices are integrated and displayed through a unified graphical interface for user viewing and management. The user can monitor the status of each component in real time through the interface, compare and analyze data, improve the system management efficiency, and achieve the effect of improving operation efficiency, reducing maintenance costs, enhancing system reliability and optimizing resource allocation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the communication network architecture of the low-voltage electrical cabinet detection system of the present utility model.

[0038] Figure 2 It is a global network detection schematic diagram of the low-voltage electric cabinet detection system of the utility model.

[0039] Figure 3 This is a fault point identification trend diagram of the low-voltage electric cabinet detection system of the utility model.

[0040] Figure 4 This is a collection circuit diagram of a miniature circuit breaker in a low-voltage electrical cabinet detection system of the utility model.

[0041] Figure 5 A diagram of any single electrical device that can be connected to the low-voltage electrical cabinet detection system of the utility model.

[0042] The accompanying drawings are marked as follows: 1. Data acquisition and transmission equipment; 2. Communication equipment; 3. Low-voltage components; 4. Energy management system software. DETAILED DESCRIPTION

[0043] The technical solution of the utility model is described in detail below through specific embodiments.

[0044] Reference Figure 1-2 As shown, the utility model discloses a low-voltage electric cabinet detection system structure, including a data acquisition and transmission device 1, a communication device 2, a low-voltage component 3 and an energy management system software 4, and the energy management system software 4 runs inside the data acquisition and transmission device 1, and the data acquisition and transmission device 1 is connected to the low-voltage component 3 through the communication interface of the communication device 2;

[0045] The data collection and transmission device 1 is connected to the energy management system software 4 through the communication device 2, and transmits the collected data to the server for processing, and centrally processes, stores and manages the data, while providing remote access and control functions;

[0046] The communication device 2 provides a data input and output channel for the data acquisition and transmission device 1, the energy management system software 4 and the low-voltage components 3, thereby realizing data communication between different devices;

[0047] The low voltage component 3 sends power parameters and status information to the data acquisition and transmission device 1 through the communication device 2, and monitors and records power parameters, performs protection functions, and provides tripping status and alarm information;

[0048] The energy management system software 4 interacts with the low-voltage components 3 through the communication device 2, and provides real-time data processing, display, storage and control functions through flexible configuration and configuration, further realizing real-time monitoring and fault warning.

[0049] Preferably, the data acquisition and transmission device 1 includes a power configuration tool, power monitoring and management equipment, and the power configuration tool is to configure and manage the power supply mode of each power supply in the low-voltage distribution cabinet system, and can flexibly configure power supply parameters according to different equipment requirements to improve the compatibility and adaptability of the detection system, and ensure that the data acquisition and transmission equipment 1, communication equipment 2, low-voltage components 3 and energy management system software 4 can operate stably;

[0050] The power monitoring and management equipment monitors the operating status of the voltage, current, power, and frequency of each device in the low-voltage electrical cabinet in real time, collects and transmits operating status data, provides intuitive monitoring information on the display interface, analyzes the collected data, and generates reports and historical curves to provide basic data for fault detection and early warning of the detection system, as well as trend analysis and fault prediction for the long-term operating status of the low-voltage electrical cabinet system. When an abnormal state or fault is detected, an alarm signal can also be issued to prompt the user to handle it.

[0051] Preferably, the communication device 2 includes a bus COM communication module, an Ethernet Modbus TCP / IP communication protocol, and a Modbus RTUR S485 serial communication protocol, which are used to realize efficient transmission, real-time monitoring and remote management of data in the low-voltage electric cabinet detection system, and enhance the reliability, scalability and adaptability of the detection system;

[0052] The bus COM communication module provides a stable and reliable communication channel, collects the data acquisition and transmission equipment 1 and the low-voltage components 3 monitoring and acquisition data into a bus network, facilitates real-time data exchange and centralized management, is used to expand and upgrade the detection system, and has data transmission and protocol conversion functions, is used to integrate several low-voltage components 3 devices, and simplifies the detection system structure and wiring;

[0053] Ethernet ModbusTCP / IP communication protocol realizes high-speed data transmission through Ethernet and supports TCP / IP protocol. It can transmit data and remotely access data through standard network devices such as routers and switches to support cross-platform communication and data sharing, and is used to enhance the interoperability, compatibility, real-time and management convenience of the detection system.

[0054] Modbus RTUR S485 serial communication protocol supports RS485 interface and multi-point communication, realizes long-distance data transmission and allows multiple devices to share a bus for data transmission. It has good anti-interference ability and is suitable for use in complex electromagnetic environments.

[0055] Preferably, the low-voltage components 3 include a circuit breaker and an electric energy metering device, and the circuit breaker includes a molded case circuit breaker MCCB, an MCB miniature circuit breaker, a 3VA circuit breaker, a 3VL circuit breaker, and a 3WT circuit breaker. The molded case circuit breaker MCCB has a high breaking capacity and provides circuit protection for protecting circuits and equipment from overload, short circuit, and current leakage, so as to improve the safety of the detection system.

[0056] MCB miniature circuit breakers protect branch circuits in low-voltage electrical cabinets from overload and short circuit. They are small in size and low in cost, and are used to ensure the safe operation of small current circuits.

[0057] 3VA circuit breakers are designed based on the settings and requirements of the equipment in the low-voltage electrical cabinet, providing comprehensive circuit protection against overload, short circuit and leakage. They have high breaking capacity and programmable functions, and can be applied to complex power systems.

[0058] 3VL circuit breakers are high-performance circuit breakers that provide reliable overload and short-circuit protection, ensuring stable operation of the low-voltage electrical cabinet system;

[0059] 3WT circuit breakers have high breaking capacity and provide comprehensive power protection and management functions under high load conditions to ensure the overall safety of the detection system;

[0060] The electric energy metering devices include 7KM PAC RS485 meter, 7KM PAC 4200 meter, 7KM PAC 3200 meter, 7KM PAC 3100 meter, PAC 3220 meter, PAC 1600 meter, PAC 2200 meter, PAC 3000 meter and PAC4200 meter. The 7KM PAC RS485 meter is an electric energy metering device that realizes data communication and remote monitoring through the RS485 interface, and is used to monitor and record the electric energy consumption of each device in the low-voltage electrical cabinet, and provide data support for energy management and optimization.

[0061] 7KM PAC 4200 meter supports several communication protocols and interfaces to provide detailed power data in low voltage cabinets, providing comprehensive support for detection system analysis and optimization;

[0062] 7KM PAC 3200 electric meter measures the electrical parameters of voltage, current and power in real time. It can provide necessary power parameter data when used to comprehensively monitor the operating status data of low-voltage electrical cabinet system.

[0063] 7KM PAC 3100 electric meter is a basic electric energy metering device that measures and monitors the electric energy of various equipment in medium and low voltage electrical cabinet systems in real time;

[0064] The PAC 3220 meter is a mid-range energy metering device with measurement and communication functions to provide accurate energy measurement and data communication;

[0065] The PAC 1600 meter is an entry-level energy metering device that provides basic energy measurement functions;

[0066] The PAC 2200 meter is a multifunctional energy meter with comprehensive measurement and communication functions for comprehensive monitoring and recording of energy consumption, supporting detailed energy management in detection systems;

[0067] PAC 3000 meter is a high-precision electric energy metering device that provides power parameter measurement and data communication functions for optimizing detection system optimization and energy efficiency management;

[0068] The PAC 4200 meter is an advanced energy metering device that provides high-precision measurement of electrical parameters. It is used to provide comprehensive energy data support for complex power systems and promote detection system optimization and energy management.

[0069] Preferably, the low-voltage electric cabinet detection system includes data monitoring, data sorting and network architecture for the equipment detection process, and the data monitoring is to collect the measured quantities from the low-voltage components 3, and read the voltage, current, tripping status, alarm information, and power status values ​​of the equipment in operation in real time to ensure timely discovery and handling of abnormal situations, and transmit the low-voltage electric cabinet equipment parameters on the detection site to the controller for real-time processing and analysis through the communication device 2, monitor the use of each device, and determine whether there are safety hazards, so as to ensure the safe operation of each device and prevent potential safety hazards, and the controller obtains the alarm information and fault point from the PC for the first time according to the current status of the operating parameters of the low-voltage electric cabinet equipment on the real-time monitoring site, so as to improve the fault response speed and reduce downtime;

[0070] Data collation is that the controller displays the received data according to the predefined standard view, displays the measured quantity of the low-voltage component 3 of the communication transmission processing data from the communication device 2 in a table form, and organizes the measured quantity into an EXCEL file according to the record timestamp and data information to facilitate the tracing and analysis of historical data, and archives the read data, saves the limit value and the curve interface for display, which is convenient for monitoring and analysis, and then generates corresponding reports according to the predefined rates and archived energy data to provide energy management and decision support;

[0071] The network architecture is that in addition to the communication device 2, it can also communicate through twisted pair to Ethernet, and at the same time configure the OPC network server, compatible with the OPC protocol, for data interaction and information transmission, that is, use the communication device 2 to build the data acquisition and transmission equipment 1, low-voltage components 3 and run the energy management system software 4, and can display the measured quantity of any low-voltage component 3 through the communication device 2, so as to centrally manage and monitor the low-voltage cabinet detection data and improve the management efficiency of the detection system.

[0072] Preferably, the energy management system software 4 is an integrated driver. By configuring a dedicated driver for automatic identification of the data acquisition and transmission device 1 and the low-voltage components 3 in the energy management system software 4, the data acquisition and transmission device 1 can automatically collect energy data from the low-voltage components 3 through the communication device 2, without the need for the user to perform additional configuration work, which not only reduces the possibility of human configuration errors, but also improves the reliability and stability of the detection system; the energy management system software 4 provides an intuitive graphical interface with preset display positions of key measurement values, which users can easily view and manage, allowing users to monitor the current status in real time on the PC side, and can customize views as needed, obtain alarm information and fault points in the first place, reducing the workload of initial settings while improving the response speed and management efficiency of the detection system; and the energy management system software 4 has a unified data interface and is compatible with multiple communication protocols such as ModbusTCP / IP, Modbus RTU and OPC, centrally managing and interacting with data collected by the data acquisition and transmission device 1, further improving the efficient operation of the detection system.

[0073] It is additionally stated that Figure 3-5 As shown, during the data sorting process, the PC side can record and establish a historical curve of the data for observation and comparison, so that the user can make judgments in advance and predict the occurrence of fault points; it is also feasible to collect data for MCB miniature circuit breaker devices used in molded case circuit breaker products and automatic switching electrical products in the low-voltage cabinet detection system; as for any single electrical equipment, it can be integrated into the detection system through the communication device 2 to collect, transmit and monitor the status data of the electrical equipment.

[0074] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A low voltage cabinet detection system, characterized in that: The system comprises a data acquisition and transmission device (1), a communication device (2), a low-voltage component (3) and an energy management system software (4), wherein the energy management system software (4) runs inside the data acquisition and transmission device (1), and the data acquisition and transmission device (1) is connected to the low-voltage component (3) via a communication interface of the communication device (2); The data collection and transmission device (1) is connected to the energy management system software (4) via the communication device (2), transmits the collected data to the server for processing, and centrally processes, stores and manages the data, while providing remote access and control functions; The communication device (2) provides a data input and output channel for the data acquisition and transmission device (1), the energy management system software (4) and the low-voltage components (3), thereby realizing data communication between different devices; The low-voltage component (3) sends power parameters and status information to the data acquisition and transmission device (1) through the communication device (2), monitors and records power parameters, performs protection functions, and provides tripping status and alarm information; The energy management system software (4) interacts with the low-voltage components (3) via the communication device (2), provides real-time data processing, display, storage and control functions through flexible configuration and arrangement, and further realizes real-time monitoring and fault warning.

2. A low voltage electrical cabinet detection system according to claim 1, characterized in that: The data acquisition and transmission device (1) includes a power configuration tool and a power monitoring and management device, and the power configuration tool is used to configure and manage the power supply mode of each power supply in the low-voltage distribution cabinet system, and can flexibly configure power parameters according to different equipment requirements to ensure that the data acquisition and transmission device (1), communication equipment (2), low-voltage components (3) and energy management system software (4) can operate stably; The power monitoring and management equipment monitors the operating status of the voltage, current, power and frequency of each device in the low-voltage electrical cabinet in real time, collects and transmits operating status data, provides intuitive monitoring information on the display interface, analyzes the collected data, generates reports and historical curves, and can also issue an alarm signal when an abnormal state or fault is detected.

3. A low voltage electrical cabinet detection system according to claim 2, characterized in that: The communication device (2) includes a bus COM communication module, an Ethernet Modbus TCP / IP communication protocol, and a Modbus RTUR S485 serial communication protocol, and the bus COM communication module provides a stable and reliable communication channel, and collects the monitoring and collection data of the data acquisition and transmission device (1) and the low-voltage components (3) into a bus network, which is convenient for real-time data exchange and centralized management; The Ethernet ModbusTCP / IP communication protocol achieves high-speed data transmission through Ethernet and supports TCP / IP protocol. It can perform data transmission and remote access through standard network devices such as routers and switches to support cross-platform communication and data sharing. The Modbus RTUR S485 serial communication protocol supports RS485 interface and supports multi-point communication, realizes long-distance data transmission and allows multiple devices to share one bus for data transmission.

4. A low voltage electrical cabinet detection system according to claim 3, characterized in that: The low-voltage components (3) include a circuit breaker and an electric energy metering device, and the circuit breaker includes a molded case circuit breaker MCCB, an MCB miniature circuit breaker, a 3VA circuit breaker, a 3VL circuit breaker, and a 3WT circuit breaker. The molded case circuit breaker MCCB has a high breaking capacity and provides circuit protection. The MCB miniature circuit breaker is used to protect the branch circuit in the low-voltage electrical cabinet from overload and short circuit; The 3VA circuit breaker is designed to provide comprehensive circuit protection against overload, short circuit and leakage according to the settings and requirements of the equipment in the low-voltage electrical cabinet; The 3VL circuit breaker is a high performance circuit breaker; The 3WT circuit breaker provides comprehensive power protection and management functions under high load conditions; The electric energy metering device includes a 7KM PAC RS485 meter, a 7KM PAC 4200 meter, a 7KM PAC 3200 meter, a 7KM PAC 3100 meter, a PAC 3220 meter, a PAC 1600 meter, a PAC 2200 meter, a PAC 3000 meter, and a PAC4200 meter, and the 7KM PAC RS485 meter is an electric energy metering device that realizes data communication and remote monitoring through an RS485 interface; The 7KM PAC 4200 meter supports several communication protocols and interfaces; The 7KM PAC 3200 meter measures the electrical parameters of voltage, current and power in real time; The 7KM PAC 3100 meter is a basic electric energy metering device that measures and monitors the electric energy of various devices in the medium and low voltage electrical cabinet system in real time; The PAC 3220 meter is a mid-range electric energy metering device with measurement and communication functions; The PAC 1600 meter is an entry-level energy metering device that provides basic energy measurement functions; The PAC 2200 meter is a multifunctional energy meter with comprehensive measurement and communication functions; The PAC 3000 meter is a high-precision electric energy metering device that provides power parameter measurement and data communication functions; The PAC 4200 electric meter is an advanced electric energy metering device that provides high-precision measurement capabilities of electrical parameters.

5. A low voltage electrical cabinet detection system according to claim 4, characterized in that: The low-voltage electric cabinet detection system includes data monitoring, data sorting and network architecture for the equipment detection process. The data monitoring is to collect measured quantities from the low-voltage components (3), and read the voltage, current, tripping state, alarm information, and power status values ​​of the equipment in operation in real time, transmit the low-voltage electric cabinet equipment parameters at the detection site to the controller through the communication device (2) for real-time processing and analysis, monitor the use of each device, and determine whether there are safety hazards. The controller obtains the alarm information and the fault point for the first time and displays it on the PC according to the current status of the operating parameters of the low-voltage electric cabinet equipment at the real-time monitoring site; The data arrangement is that the controller displays the received data according to a predefined standard view, displays the measured quantities of the communication transmission processing data low-voltage components (3) from the communication device (2) in a table form, arranges the measured quantities into an EXCEL file according to the recording timestamp and data information, archives the read data, saves the limit value and the curve interface for display, and then generates a corresponding report according to the predefined rate and archived energy data; The network architecture is capable of communicating via twisted pair Ethernet in addition to the communication device (2), and is configured with an OPC network server, compatible with the OPC protocol, and performing data interaction and information transmission, that is, utilizing the communication device (2) to build data acquisition and transmission equipment (1), low-voltage components (3) and run energy management system software (4), and being able to display the measured quantity of any low-voltage component (3) through the communication device (2) so as to centrally manage and monitor the detection data of the low-voltage electrical cabinet.

6. A low voltage electrical cabinet detection system according to claim 4, characterized in that: The energy management system software (4) is an integrated driver. By configuring a dedicated driver for automatic identification of the data acquisition and transmission device (1) and the low-voltage components (3) in the energy management system software (4), the data acquisition and transmission device (1) can automatically collect energy data from the low-voltage components (3) through the communication device (2), without the need for the user to perform additional configuration work; the energy management system software (4) provides an intuitive graphical interface with preset display positions of key measurement values, which can be easily viewed and managed by the user, allowing the user to monitor the current status in real time on the PC side and customize the view as needed to obtain alarm information and fault points in the first place; and the energy management system software (4) has a unified data interface and is compatible with multiple communication protocols such as ModbusTCP / IP, Modbus RTU and OPC, so as to centrally manage and interact with the data collected by the data acquisition and transmission device (1).

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