Multi-line power supply monitoring electrical cabinet

Abstract

The utility model provides a multi-line power supply monitoring electrical cabinet. The multi-line power supply monitoring electrical cabinet comprises a cabinet body, a protective door is arranged at the front end of the cabinet body, and an industrial control touch screen is arranged on the protective door; a molded case circuit breaker, a programmable controller and a plurality of intelligent circuit breakers are arranged in the cabinet body; an electric connector is arranged at the top of the cabinet body; the industrial control touch screen is connected to a network port interface of the programmable controller through a shielding network cable; the industrial control touch screen comprises a main page and sub-pages, the main page is used for displaying information of a main circuit corresponding to the molded case circuit breaker, and the sub-pages are used for displaying information of loops corresponding to the intelligent circuit breakers respectively. Compared with a traditional electrical cabinet, the space occupied by external connection lines and equipment is reduced, the space utilization rate is improved, the space occupation rate of a power distribution cabinet is reduced, and the problems that multi-line power supply is monitored, and the occupied area of the electrical cabinet is large are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical cabinets, and in particular to a multi-line power supply monitoring electrical cabinet. BACKGROUND

[0002] Traditional electrical cabinets generally use traditional circuit breakers, contactors, relays, transformers, switching power supplies, pointer instruments or digital instruments, indicator lights, buttons, electrical connectors and other devices to achieve the function of power distribution management of the electrical cabinet, distribute power to each load cabinet, and can only monitor electrical cabinet parameters to a limited extent, meet basic detection requirements, support a small number of real-time monitoring loops, and have a large overall floor area. If the traditional electrical cabinet wants to monitor multi-line power supply and realize real-time transmission of power supply data, it needs to increase the same number of measurement devices, display instruments, control elements and programmable controllers as the number of monitoring lines, so that the floor area of the electrical cabinet is further increased.

[0003] Based on this, the present application provides a multi-line power supply monitoring electrical cabinet. SUMMARY

[0004] In view of the problem of the large floor area of the traditional electrical cabinet in the prior art if it wants to monitor multi-line power supply, the present application provides a multi-line power supply monitoring electrical cabinet.

[0005] The purpose of the present application is achieved by adopting the following technical solutions:

[0006] In a first aspect, the present application provides a multi-line power supply monitoring electrical cabinet, which comprises a cabinet body, a protective door is arranged at the front end of the cabinet body, and an industrial touch screen is arranged on the protective door; a molded case circuit breaker, a programmable controller and a plurality of intelligent circuit breakers are arranged inside the cabinet body.

[0007] An electrical connector is arranged at the top of the cabinet body, one end of the electrical connector is connected to a power cable outside the cabinet body, the other end enters the electrical cabinet and passes through the molded case circuit breaker, and then is distributed and connected to each intelligent circuit breaker;

[0008] The signal transmission interfaces of the molded case circuit breaker and each intelligent circuit breaker are connected to the RS485 communication interface of the programmable controller through two-core shielded cables respectively; the industrial touch screen is connected to the network interface of the programmable controller through a shielded network cable; the industrial touch screen comprises a main page and a sub-page, the main page is used to display the information of the main circuit corresponding to the molded case circuit breaker, and the sub-page is used to display the information of the circuit corresponding to each intelligent circuit breaker.

[0009] In some possible implementation manners, the plastic shell circuit breaker is further provided with a switching power supply, an input end of the switching power supply is connected to an output end of the plastic shell circuit breaker, and an output end of the switching power supply is connected to a power supply end of the programmable controller and the industrial touch screen.

[0010] In some possible implementation manners, a lower side of the industrial touch screen is provided with a control display area, the control display area is provided with a power supply indicator lamp, a controller running lamp and a plurality of buttons, the power supply indicator lamp is connected to the plastic shell circuit breaker, the controller running lamp is connected to the programmable controller, and each button is connected to a control end of each intelligent circuit breaker.

[0011] In some possible implementation manners, a side edge portion of the protection door is provided with a hinge mechanism for connecting the protection door to one side of the cabinet body, and a side of the industrial touch screen away from the hinge mechanism is further provided with a switch handle.

[0012] In some possible implementation manners, the cabinet body further comprises a first ventilation fan and a second ventilation fan, and the first ventilation fan and the second ventilation fan are arranged on upper sides and lower sides of opposite sides of the cabinet body, respectively.

[0013] In some possible implementation manners, the first ventilation fan is arranged on the upper side of the cabinet side close to the hinge mechanism, and the second ventilation fan is arranged on the lower side of the cabinet side close to the switch handle.

[0014] In some possible implementation manners, the switching power supply is a 24V direct-current switching power supply.

[0015] In some possible implementation manners, the cabinet body is internally provided with a lightning protection device, and the lightning protection device and the shell of the cabinet body are respectively grounded through grounding leads.

[0016] In some possible implementation manners, the subpages are used to display voltage, current, frequency, power consumption, running time and steady-state parameters of respective loops corresponding to the intelligent circuit breakers.

[0017] In some possible implementation manners, the cabinet body is further provided with a communication module, and the programmable controller is remotely connected to an upper computer outside the cabinet body through the communication module.

[0018] In combination with the above technical solutions and the technical problems solved, the technical solutions to be protected by the present application have the advantages and positive effects that: the external power cable is connected to the electrical cabinet through the electrical connector on the top of the cabinet, first passes through the molded case circuit breaker for on-off control and overload protection of the main power supply, and then the power supply is distributed to each intelligent circuit breaker, and the intelligent circuit breaker further supplies power to a specific power consumption circuit. The signal transmission interfaces of the molded case circuit breaker and each intelligent circuit breaker are connected to the RS485 communication interface of the programmable controller through a two-core shielded cable. The programmable controller collects electrical parameters such as current, voltage, and frequency of each circuit breaker, and signals such as on-off state of the circuit breaker in real time. The programmable controller processes and analyzes the collected signal data, and the operation data can be stored in the data storage device built-in the programmable controller, facilitating subsequent data inquiry and analysis. In specific applications, the data storage device can also be independent of the storage device of the programmable controller, and connected to the programmable controller through a communication interface (such as USB, etc.).

[0019] At the same time, the industrial touch screen is connected to the network interface of the programmable controller through a shielded network cable, serving as a human-machine interface. The operator can check the main circuit information corresponding to the molded case circuit breaker through the main page of the industrial touch screen, such as voltage and current parameters of the main power supply; and check the loop information corresponding to each intelligent circuit breaker through the sub-page, such as detailed parameters of each loop, such as voltage, current, frequency, active power, reactive power, and running time. In specific applications, the industrial touch screen also provides virtual control buttons to allow the operator to perform operations such as switching on and off the intelligent circuit breaker.

[0020] Therefore, through the cooperation of the programmable controller and the intelligent circuit breaker, real-time monitoring of multi-circuit power supply is realized, and electrical parameters and operating states of each circuit can be accurately collected and displayed, so that the operator can timely understand the operation of the electrical system, and the monitoring accuracy and efficiency are improved. The molded case circuit breaker and the intelligent circuit breaker have overload and short circuit protection functions, and can automatically cut off the power supply in abnormal conditions to prevent electrical accidents; at the same time, the programmable controller can analyze the collected data to realize fault prediction and alarm, further enhancing the safety performance of the electrical cabinet. The programmable controller, data storage device, switching power supply, molded case circuit breaker, intelligent circuit breaker, and other functional components are integrated in one electrical cabinet, compared with the traditional electrical cabinet, the space occupied by the external connection lines and devices is reduced, the space utilization is improved, the space occupancy rate of the power distribution cabinet is reduced, and the problem of large land occupation of the electrical cabinet in monitoring multi-circuit power supply is solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in combination with the drawings and embodiments.

[0022] Figures la to lcIt is a structure schematic diagram of different angles of a multi-line power supply monitoring electrical cabinet provided by the embodiment of the application.

[0023] Figure 2 It is an internal layout schematic diagram of a multi-line power supply monitoring electrical cabinet provided by the embodiment of the application.

[0024] Figure 3 It is a circuit schematic diagram of a multi-line power supply monitoring electrical cabinet provided by the embodiment of the application.

[0025] Fig. 1, industrial control touch screen; 2, protective door; 3, switch handle; 4, control display area; 5, electrical connector; 6, first air exchange fan; 7, second air exchange fan; 8, programmable controller; 9, switching power supply; 10, intelligent circuit breaker. DETAILED DESCRIPTION

[0026] In the following, the application will be further described in conjunction with the drawings and the specific embodiments. It should be noted that, under the premise of not conflicting, the following described embodiments or technical features can be combined to form new embodiments. The implementation procedures of the application will be described below with reference to the drawings and the preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the application from the disclosure in the specification. The application can also be implemented or applied by different specific implementation procedures, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the application. It should be understood that the preferred embodiments are only for illustrating the application, but not for limiting the protection scope of the application.

[0027] The application is a digital operation monitoring system with high integration, high reliability, comprehensive monitoring, and comprehensive display and control of various data by touch screen, which reduces the space occupancy rate of the power distribution cabinet, improves the volume rate of the power distribution cabinet, and provides a set of electrical cabinet with multi-line power supply monitoring.

[0028] Referring to Figure la , Figure lb , Figure lc , and Figure 2 and Figure 3 , the embodiment of the application provides a multi-line power supply monitoring electrical cabinet, which comprises a cabinet body, a protective door 2 is arranged at the front end of the cabinet body, and an industrial control touch screen 1 is arranged on the protective door 2; a molded case circuit breaker, a programmable controller 8 and a plurality of intelligent circuit breakers 10 are arranged inside the cabinet body;

[0029] An electrical connector 5 is arranged at the top of the cabinet body, one end of the electrical connector 5 is connected with a power cable outside the cabinet body, the other end enters the electrical cabinet, passes through the molded case circuit breaker, and then is distributed and connected to each intelligent circuit breaker 10;

[0030] The signal transmission interface of the molded case circuit breaker and each of the intelligent circuit breakers 10 is connected to the RS485 communication interface of the programmable controller 8 through a two-core shielded cable; the industrial control touch screen 1 is connected to the network interface of the programmable controller 8 through a shielded network cable; the industrial control touch screen 1 includes a main page and sub-pages, the main page is used to display the information of the main circuit corresponding to the molded case circuit breaker, and the sub-pages are used to display the information of the circuits corresponding to the intelligent circuit breakers 10 respectively.

[0031] In the technical scheme provided in the embodiment, the external power cable is connected to the electrical cabinet through the electrical connector 5 on the top of the cabinet body, first passes through the molded case circuit breaker for on-off control and overload protection of the main power supply, and then the power supply is distributed to each intelligent circuit breaker 10, and the intelligent circuit breaker 10 further supplies power to a specific power circuit. The signal transmission interface of the molded case circuit breaker and each of the intelligent circuit breakers 10 is connected to the RS485 communication interface of the programmable controller 8 through a two-core shielded cable. The programmable controller 8 collects electrical parameters such as current, voltage and frequency of each circuit breaker and signals such as on-off state of the circuit breaker in real time. The programmable controller 8 processes and analyzes the collected signal data, and the running data can be stored in the data storage device built in the programmable controller 8, facilitating subsequent data checking and analysis. In specific applications, the data storage device can also be independent of the storage device of the programmable controller 8 and connected to the programmable controller 8 through a communication interface (such as USB, etc.).

[0032] Meanwhile, the industrial control touch screen 1 is connected to the network interface of the programmable controller 8 through a shielded network cable and serves as a man-machine interactive interface. An operator can check the main circuit information corresponding to the molded case circuit breaker, such as voltage and current parameters of the main power supply, through the main page of the industrial control touch screen 1, and check the circuit information corresponding to each intelligent circuit breaker 10, such as detailed parameters of each circuit, such as voltage, current, frequency, active power, reactive power and running time, through the sub-pages. In specific applications, the industrial control touch screen 1 also provides virtual control buttons to allow the operator to perform operations such as switching on and off the intelligent circuit breakers 10.

[0033] Therefore, through the cooperation of the programmable controller 8 and the intelligent circuit breaker 10, real-time monitoring of multi-circuit power supply is realized, the electrical parameters and operating states of each circuit can be accurately collected and displayed, the operating personnel can timely understand the operating state of the electrical system, and the monitoring accuracy and efficiency are improved. The molded case circuit breaker and the intelligent circuit breaker 10 have overload, short circuit and other protection functions, can automatically cut off the power supply in abnormal conditions, and prevent electrical accidents from occurring; meanwhile, the programmable controller 8 can analyze the collected data, realize fault prediction and alarm, and further enhance the safety performance of the electrical cabinet. The programmable controller 8, the data storage, the switching power supply 9, the molded case circuit breaker, the intelligent circuit breaker 10 and other functional components are integrated in one electrical cabinet, compared with the traditional electrical cabinet, the space occupied by the external connection lines and equipment is reduced, the space utilization is improved, and the space occupancy rate of the power distribution cabinet is reduced.

[0034] As an example, the cabinet body is internally provided with a molded case circuit breaker, the lower side of the molded case circuit breaker is provided with a programmable controller 8, and the lower side of the programmable controller 8 is provided with a plurality of intelligent circuit breakers 10. In specific applications, the positions therebetween can also be adjusted accordingly to adapt to the needs of different users.

[0035] In some embodiments, one side of the molded case circuit breaker is further provided with a switching power supply 9, an input end of the switching power supply 9 is connected to an output end of the molded case circuit breaker, and an output end of the switching power supply 9 is connected to a power supply end of the programmable controller 8 and the industrial touch screen 1.

[0036] In the technical scheme provided in this embodiment, the input end of the switching power supply 9 is connected to the output end of the molded case circuit breaker, and the alternating current power supply that has been preliminarily controlled and protected is obtained from the molded case circuit breaker. The switching power supply 9 is used to convert the input alternating current power supply into stable direct current power supply.

[0037] The converted direct current power supply is output from the output end of the switching power supply 9 and connected to the power supply end of the programmable controller 8 and the industrial touch screen 1, so as to provide the required direct current power supply and ensure normal operation.

[0038] Therefore, the switching power supply 9 can convert the alternating current power supply into stable direct current power supply, provide stable power supply for the programmable controller 8 and the industrial touch screen 1, and ensure that they can still operate stably under various power grid fluctuations and load changes, thereby improving the reliability of the entire electrical cabinet. Integrating the switching power supply 9 in the electrical cabinet and directly obtaining the power supply from the molded case circuit breaker simplifies the connection of the external power supply line, reduces the use of external power adapters or power modules, improves the integration of the system, and makes the structure of the electrical cabinet more compact.

[0039] The switch power supply 9 can be 12V, 24V, 36V DC. Preferably, the switch power supply 9 is 24V DC.

[0040] In some embodiments, the lower side of the industrial touch screen 1 is provided with a control display area 4, which is provided with a power indicator, a controller running light and a plurality of buttons. The power indicator is connected with the molded case circuit breaker, the controller running light is connected with the programmable controller 8, and each button is connected with the control end of each intelligent circuit breaker 10.

[0041] As an example, the power indicator is connected with the molded case circuit breaker. When the molded case circuit breaker is closed and the power supply is turned on, the power indicator will light up, indicating that the electrical cabinet has been powered on and is in working condition. If it is disconnected or the power supply is abnormal, the indicator will be turned off, prompting the operator that the power supply state is abnormal. Similarly, the controller running light is connected with the programmable controller 8. When the programmable controller 8 is running normally, the controller running light will light up, indicating that the programmable controller 8 is working. If the programmable controller 8 fails or stops running, the running light will be turned off or flickering, indicating that the programmable controller 8 state is abnormal.

[0042] Each button can be connected with the control end of each intelligent circuit breaker 10. The operator can directly control the on-off state of the corresponding intelligent circuit breaker 10 by operating the corresponding button, realizing the control of each power circuit. For example, pressing a button can make the corresponding intelligent circuit breaker 10 close, connecting the power supply of the circuit; pressing the button again can make the circuit breaker open, cutting off the power supply.

[0043] In this way, the power indicator and the controller running light provide the operator with an intuitive indication of the power supply and controller running state. During the operation of the electrical cabinet, the operator only needs to observe the on / off state of the indicator light to quickly understand whether the power supply is connected and whether the controller is working normally, improving the convenience and real-time of operation. When the electrical cabinet fails, the state change of the indicator light can provide important clues for fault diagnosis. For example, if the power indicator is turned off, it may be that the molded case circuit breaker trips or the power supply line is faulty; if the controller running light is abnormal, it may be that the programmable controller 8 is faulty. The operator can preliminarily judge the fault cause according to the state of the indicator light, and carry out targeted inspection and maintenance, improving the efficiency of fault handling.

[0044] In some embodiments, the side of the protective door 2 is provided with a hinge mechanism for connecting the protective door 2 to one side of the cabinet body; the industrial touch screen 1 is also provided with a switch handle 3 away from the hinge mechanism.

[0045] The protective door 2 is connected to one side of the cabinet body through a hinge mechanism of the side edge. It can be considered that the hinge mechanism is composed of a hinge seat and a hinge shaft, as an example, the hinge seat is fixed on the side of the cabinet body, and the hinge shaft is connected to the protective door 2. When the protective door 2 needs to be opened, the operator holds the switch handle 3 of the protective door 2 and pulls it outward, and the hinge mechanism makes the protective door 2 rotate around the hinge shaft, thereby opening the protective door 2.

[0046] In some embodiments, the cabinet body further comprises a first ventilation fan 6 and a second ventilation fan 7, which are respectively arranged on the upper side and the lower side of the opposite sides of the cabinet body.

[0047] The first ventilation fan 6 and the second ventilation fan 7 are respectively arranged on the upper side and the lower side of the opposite sides of the cabinet body, forming an air circulation system. The types of the first ventilation fan 6 and the second ventilation fan 7 are not limited in this embodiment, for example, both are exhaust fans, both are intake fans, or one is an exhaust fan and the other is an intake fan.

[0048] As an example, when the ventilation fans are working, the first ventilation fan 6 (for example, an intake fan) sucks in fresh air from the outside into the cabinet body, and the second ventilation fan 7 (for example, an exhaust fan) exhausts the hot air or waste gas in the cabinet body to the outside. In this way, the air in the cabinet is constantly renewed and circulated.

[0049] Therefore, the arrangement of the ventilation fans significantly improves the heat dissipation efficiency of the electrical cabinet. Compared with natural heat dissipation, the forced ventilation of the ventilation fans can quickly exhaust heat to the outside, keep the temperature in the cabinet at a low level, prolong the service life of the electrical equipment, and reduce the failure rate caused by overheating.

[0050] In some embodiments, the first ventilation fan 6 is arranged on the upper side of the cabinet body side near the hinge mechanism, and the second ventilation fan 7 is arranged on the lower side of the cabinet body side near the switch handle 3.

[0051] The first ventilation fan 6 is arranged on the upper side of the cabinet body side near the hinge mechanism, and the second ventilation fan 7 is arranged on the lower side of the cabinet body side near the switch handle 3, so that the air circulation path is more reasonable. As an example, when the first ventilation fan 6 (for example, an intake fan) works, fresh air enters the cabinet body from the upper side, flows downward along the internal space of the cabinet body, passes through the surfaces of various devices, and absorbs the heat and harmful gases generated by the devices; then, the hot air and waste gas are exhausted from the lower side under the action of the second ventilation fan 7 (for example, an exhaust fan). In this way, the air can flow fully and cover all areas inside the cabinet body. Fresh air enters from the upper side, and hot air is discharged quickly from the lower side with the exhaust fan, which optimizes the heat dissipation effect, reduces the temperature in the cabinet, and protects the normal operation of the equipment.

[0052] Thus, through reasonable air circulation path design, the ventilation fan can more effectively take away the heat generated by the device.

[0053] In some embodiments, the cabinet body is internally provided with a lightning protection device, and the lightning protection device and the cabinet body shell are respectively grounded through grounding leads.

[0054] When a surge voltage caused by external lightning or power grid operation enters the electrical cabinet, the lightning protection device will respond quickly, and its internal surge protection elements (such as a pressure-sensitive resistor, a gas discharge tube, etc.) will absorb and discharge the surge voltage, limiting the excessive voltage within the safe range of the device and preventing the voltage from damaging sensitive electronic devices inside the electrical cabinet. The lightning protection device and the cabinet body shell are respectively grounded through grounding leads, forming an effective grounding system. The grounding leads safely guide the surge current discharged by the lightning protection device and the induced current on the cabinet body shell into the ground, avoiding the generation of potential difference inside the device, triggering secondary failures or electric shock accidents, and ensuring the safety of the device and personnel.

[0055] In some embodiments, the sub-pages are used to display the voltage, current, frequency, power consumption, running time, and steady-state parameters of the respective loop corresponding to each smart circuit breaker 10.

[0056] In some embodiments, the cabinet body further comprises a communication module, and the programmable controller 8 is remotely connected to the upper computer outside the cabinet body through the communication module.

[0057] The communication module is installed inside the cabinet body and connected to the programmable controller 8. The programmable controller 8 can send the collected electrical parameters, device status, and running data of the electrical cabinet to the upper computer outside the cabinet body in the form of data signals through the communication module. At the same time, the upper computer can also send control instructions and parameter setting information to the programmable controller 8 through the communication module to realize remote communication connection. The upper computer is, for example, an industrial computer. The communication module can use a standard communication protocol to ensure compatibility with the upper computer and the reliability of communication.

[0058] Thus, through remote communication connection between the communication module and the upper computer, the operator can monitor the running state and parameters of the electrical cabinet in real time on the upper computer away from the electrical cabinet, without the need to go to the site for viewing and operation, improving the convenience and efficiency of monitoring.

[0059] In specific applications, the upper computer can analyze and process the data collected from the electrical cabinet to timely discover abnormal conditions and potential faults.

[0060] The application provides a multi-line power supply monitoring electrical cabinet, a programmable controller 8 is used for collecting, processing, transmitting and storing data; an industrial touch screen 1 is used for displaying electrical parameters and outputting control signals of the electrical cabinet; a data storage is used for storing data, facilitating data checking and analysis; an intelligent circuit breaker 10 is used for on-off and protection of the line and detection of power supply parameters; and an electrical connector 5 is used for convenient, safe and rapid connection of cables. In specific use, a protection door 2 is arranged at the front end of the electrical cabinet, and the industrial touch screen 1, indicator light, button and emergency stop button are arranged on the door. The programmable controller 8, data storage, switching power supply 9, molded case circuit breaker, intelligent circuit breaker 10, lightning protection device and contactor are arranged in the cabinet. The electrical connector 5 is arranged on the top of the cabinet. The power cable enters the electrical cabinet through the electrical connector 5 on the top of the cabinet, and then is connected to the intelligent circuit breaker 10 of each line for distribution to each power consumption equipment for power supply and protection. The signal interface of the molded case circuit breaker and the intelligent circuit breaker 10 is connected to the communication interface of the programmable controller 8 through a two-core shielded cable, and the industrial touch screen 1 is connected to the network interface of the programmable controller 8 through a shielded network cable. Meanwhile, the industrial touch screen is programmed to set a main page and subpages, the main page displays important information and virtual control buttons, and the subpages display detailed information of each loop.

[0061] The electrical cabinet can monitor the voltage, current, frequency, power consumption, running time, steady-state parameters and other running information of multiple lines. In specific application, the industrial touch display content and virtual control buttons can be customized according to requirements, and the display information and virtual control buttons are more concrete. The electrical cabinet can communicate with the upper computer to realize remote signaling, remote measurement and remote control functions, and realize remote and mobile monitoring functions.

[0062] It should be noted that in the embodiments of the application, "at least one" means one or more, and "multiple" means two or more. The association relationship between the associated objects is described, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone, wherein A and B can be singular or plural. The character " / " generally represents an "or" relationship between the front and rear associated objects. "At least one" or similar expressions refer to any combination of these items, including single or multiple combinations. For example, at least one of a, b or c can represent a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b and c can be single or multiple. It should be noted that "at least one" can also be interpreted as "one or more".

[0063] The terms "first", "second", and the like, as used in the description and the claims of the application and the above photograph, are configured to distinguish similar objects, and are not necessarily configured to describe a particular sequential or chronological order. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0064] The application is described from the use purpose, efficiency, progress and novelty, etc. The above description and the attached drawings of the specification only show the preferred embodiments of the application, and are not limited to the application. Therefore, all similar, similar, equivalent, and equivalent replacements or modifications of the application, which are within the scope of the patent application, are also within the scope of the patent application.

Claims

1. A multi-line power supply monitoring electrical cabinet, characterized in that, The multi-line power supply monitoring electrical cabinet includes a cabinet body, a protective door at the front of the cabinet body, and an industrial control touch screen on the protective door; the cabinet body is equipped with a molded case circuit breaker, a programmable controller and multiple intelligent circuit breakers. The top of the cabinet is equipped with an electrical connector. One end of the electrical connector is connected to the power cable outside the cabinet, and the other end enters the electrical cabinet and passes through the molded case circuit breaker before being distributed to each intelligent circuit breaker. The signal transmission interfaces of the molded case circuit breaker and each of the smart circuit breakers are respectively connected to the RS485 communication interface of the programmable controller via a two-core shielded cable; the industrial control touch screen is connected to the network interface of the programmable controller via a shielded network cable; the industrial control touch screen includes a main page and sub-pages, the main page is used to display the main circuit information corresponding to the molded case circuit breaker, and the sub-pages are used to display the circuit information corresponding to each of the smart circuit breakers.

2. The multi-line power supply monitoring electrical cabinet according to claim 1, characterized in that, A switching power supply is also provided on one side of the molded case circuit breaker. The input terminal of the switching power supply is connected to the output terminal of the molded case circuit breaker, and the output terminal of the switching power supply is connected to the power supply terminals of the programmable controller and the industrial control touch screen.

3. The multi-line power supply monitoring electrical cabinet according to claim 1, characterized in that, The industrial control touch screen has a control display area on its lower side. The control display area has a power indicator light, a controller operation light and multiple buttons. The power indicator light is connected to the molded case circuit breaker, the controller operation light is connected to the programmable controller, and each of the buttons is connected to the control terminal of each of the smart circuit breakers.

4. The multi-line power supply monitoring electrical cabinet according to claim 3, characterized in that, The protective door is provided with a hinge mechanism on its side for connecting the protective door to one side of the cabinet; the industrial control touch screen is also provided with a switch handle on the side away from the hinge mechanism.

5. The multi-line power supply monitoring electrical cabinet according to claim 4, characterized in that, The cabinet also includes a first ventilation fan and a second ventilation fan, which are respectively located on the upper and lower sides of opposite sides of the cabinet.

6. The multi-line power supply monitoring electrical cabinet according to claim 5, characterized in that, The first ventilation fan is located on the upper side of the cabinet side near the hinge mechanism, and the second ventilation fan is located on the lower side of the cabinet side near the switch handle.

7. The multi-line power supply monitoring electrical cabinet according to claim 1, characterized in that, The cabinet is equipped with a surge protector, and the surge protector and the outer shell of the cabinet are grounded through grounding leads.

8. The multi-line power supply monitoring electrical cabinet according to claim 1, characterized in that, The subpages are used to display the voltage, current, frequency, power consumption, operating time, and steady-state parameters of the circuits corresponding to each of the smart circuit breakers.

9. The multi-line power supply monitoring electrical cabinet according to claim 1, characterized in that, The cabinet is also equipped with a communication module, and the programmable controller is remotely connected to a host computer outside the cabinet through the communication module.

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