Combined voltage-regulating low-voltage power car quick distribution box

Abstract

The application provides a combined voltage-regulating low-voltage power generation vehicle fast distribution box, and belongs to the field of low-voltage power distribution devices. The combined voltage-regulating low-voltage power generation vehicle fast distribution box comprises a power distribution bus and a voltage compensation sub-bus. The power distribution bus comprises a bus cabinet body, a circuit breaker is installed in the bus cabinet body, and the circuit breaker is electrically connected with a group of incoming line aviation plug-in connectors and at least two groups of outgoing line aviation plug-in connectors. The voltage compensation sub-bus comprises a sub-bus cabinet body, an iron core winding voltage regulating unit is installed in the sub-bus cabinet body, the iron core winding voltage regulating unit is electrically connected with an input aviation plug-in interface and an output aviation plug-in interface, and the input aviation plug-in interface is electrically connected with the outgoing line aviation plug-in connector. The application has the beneficial effect of improving the capacity utilization rate of the low-voltage power generation vehicle, compensating for the voltage deviation at the end of long-distance power supply, and enhancing the safety and reliability of power supply.

Description

Technical Field

[0001] This invention belongs to the field of low-voltage power distribution equipment, specifically relating to a combined voltage regulating type low-voltage generator quick-connect box. Background Technology

[0002] The low-voltage emergency generator truck quick access box is an emergency power supply quick access device manufactured according to power design requirements, utilizing existing electrical quick access equipment and electrical switch protection technology. When encountering power outages due to user maintenance or faults, it can provide emergency power supply in conjunction with the low-voltage generator truck according to the user's need for rapid power restoration.

[0003] Currently, existing low-voltage emergency low-voltage generator vehicle quick access boxes generally adopt a one-to-one direct connection working mode, that is, a single low-voltage emergency low-voltage generator vehicle quick access box can only connect to a single low-voltage generator vehicle and supply power to a single load, which cannot achieve synchronous distribution of multiple loads. This results in defects such as low utilization rate of low-voltage generator vehicle capacity and limited emergency power supply coverage. Moreover, in scenarios where multiple users and multiple branches experience simultaneous power outages, multiple low-voltage generator vehicles often need to be deployed to work in parallel, which can easily lead to serious waste of emergency equipment resources and significantly increase the manpower, material resources and time costs of emergency repairs.

[0004] Furthermore, in space-constrained scenarios such as old residential areas and narrow streets, low-voltage generator trucks often cannot park nearby. Therefore, long-distance low-voltage cables must be used to extend the power supply between the low-voltage emergency low-voltage generator truck's quick access box and the load. As a result, the long-distance power supply can easily cause a significant drop in the terminal voltage, which can lead to the voltage on the user side deviating from the rated value. This can result in minor issues such as the inability of electrical equipment to start and operate normally, or even major issues such as electrical appliances burning out, protection devices malfunctioning or failing to operate, directly threatening the power supply quality and the user's electricity safety. Summary of the Invention

[0005] The purpose of this invention is to address the problems of low capacity utilization, inability to perform multi-path branching, large voltage drop over long distances, and insufficient safety assurance in existing low-voltage emergency low-voltage generator vehicle quick-connect boxes. This invention proposes a combined voltage-regulating low-voltage generator vehicle quick-connect box that can solve these problems, improve the capacity utilization of low-voltage generator vehicles, compensate for voltage deviations at the end of long-distance power supply, and enhance power supply safety and reliability.

[0006] To achieve the above objectives, the technical solution provided by this invention is as follows: a combined voltage-regulating low-voltage generator quick-connect box, comprising a power tapping main cabinet and a voltage compensation sub-cabinet. The power tapping main cabinet includes a main cabinet body, and a circuit breaker is installed inside the main cabinet body. The circuit breaker is electrically connected to a set of incoming air-mounted connectors and at least two sets of outgoing air-mounted connectors. The voltage compensation sub-cabinet includes a sub-cabinet body, and a core winding voltage regulating unit is installed inside the sub-cabinet body. The core winding voltage regulating unit is electrically connected to an input air-mounted connector and an output air-mounted connector. The input air-mounted connector is electrically connected to the outgoing air-mounted connector.

[0007] Furthermore, a wiring busbar is installed inside the cabinet, and a terminal block with one inlet and two outlets is fixedly installed on the wiring busbar. The terminal block with one inlet and two outlets includes one inlet terminal and two outlet terminals. The inlet terminal is electrically connected to the circuit breaker, and the two outlet terminals are electrically connected to two sets of outlet connectors, respectively.

[0008] Furthermore, the circuit breaker is equipped with an electronic trip unit inside. Fire trip shunt trip accessories are installed at the incoming circuit between the circuit breaker and the incoming line connector, and at the two branch outgoing circuits between the circuit breaker and the two sets of outgoing line connectors. The mechanical structure of the fire trip shunt trip accessories is linked with the electronic trip unit inside the circuit breaker. The control coil of the fire trip shunt trip accessories is electrically connected to a control circuit, and the control circuit is electrically connected to the intelligent monitoring system and / or the external fire alarm interface.

[0009] Furthermore, the intelligent monitoring system includes voltage and current transformers installed in each circuit of the power tap changer cabinet, voltage and current transformers installed in each circuit of the voltage regulating compensation sub-cabinet, a data processing module that is communicatively connected to all voltage and current transformers, and an intelligent terminal that is communicatively connected to the data processing module. The voltage transformers collect the operating voltage of the corresponding circuit in real time and transmit it to the data processing module, and the current transformers collect the operating current of the corresponding circuit in real time and transmit it to the data processing module. The data processing module processes the received electrical parameters and transmits the processed electrical parameters to the control system and the intelligent terminal. The intelligent terminal displays the received electrical parameters.

[0010] Furthermore, the data processing module is electrically connected to a dynamic overcapacity warning module. The dynamic overcapacity warning module collects the electrical parameters of each circuit in real time. When there is an electrical parameter in the electrical parameters collected by the dynamic overcapacity warning module that is equal to the preset warning threshold, the dynamic overcapacity warning module issues a warning signal and transmits an audible and visual warning signal to the control system and the smart terminal. The smart terminal displays the warning information. When there is an electrical parameter in the electrical parameters collected by the dynamic overcapacity warning module that is equal to the rated threshold, the dynamic overcapacity warning module issues an alarm signal and transmits the alarm signal to the control system. The control system controls the corresponding fire trip shunt trip accessory to perform a circuit disconnection action.

[0011] Furthermore, the intelligent monitoring system includes temperature sensors installed inside the inlet and outlet connectors. The temperature sensors measure the temperature rise data of the corresponding temperature monitoring contacts in real time and transmit it to the data processing module. The data processing module is communicatively connected to a dynamic overcapacity warning module, which issues an alarm signal when the temperature rise is abnormal.

[0012] Furthermore, the sub-cabinet is equipped with an emergency socket module, which is connected in parallel with the output aviation plug on the output side of the iron core winding voltage regulating unit.

[0013] Furthermore, phase sequence color mark identification components are provided at the incoming aviation connector, outgoing aviation connector, input aviation connector interface, and output aviation connector interface.

[0014] Furthermore, the bottom of the mother cabinet and / or the bottom of the daughter cabinet are provided with casters, and the casters are provided with locking mechanisms.

[0015] Furthermore, a rain cover is provided on the top of the mother cabinet and / or the top of the daughter cabinet.

[0016] As can be seen from the above technical solutions, the present invention has the following advantages: 1. This invention achieves the function of powering multiple branch boxes with one low-voltage generator by setting a "one-in, two-out" structure inside the power distribution cabinet, maximizing the utilization of the capacity of each low-voltage generator and effectively increasing the power supply service radius of the low-voltage generator; at the same time, the application of the high-performance aviation plug quick-connection system realizes "plug and play" in emergency scenarios, significantly improving operational efficiency and personal safety. 2. This invention achieves adjustable voltage by setting up a voltage compensation sub-cabinet, effectively solving the problem of voltage drop exceeding the standard due to excessive line length or excessive load, thereby ensuring that the voltage on the user side is stable within the rated range to guarantee power supply quality. At the same time, this invention can also add an emergency socket module, which, while ensuring the power supply of the main link, can directly obtain a stable and reliable power supply to drive on-site lighting fixtures, electric tools, or portable testing equipment, thereby expanding the comprehensive protection capability of the device in multiple scenarios. 3. The circuit breaker of the present invention can control the fire trip shunt trip accessories of one or more corresponding circuits to trip when the intelligent monitoring system determines that an over-limit or short-circuit fault has occurred in a certain branch outgoing circuit or incoming circuit, and when an external fire alarm signal is received, to accurately disconnect the faulty circuit and ensure continuous power supply to the incoming circuit and another branch outgoing circuit, thus solving the technical limitations of traditional generator cars that lack branch protection and have a wide fault impact. 4. This invention can collect the operating current and voltage data of each incoming and outgoing circuit in real time. Combined with the preset rated load threshold, it dynamically judges the load operation status through the built-in algorithm. When the load of a certain incoming or outgoing circuit is detected to be close to the rated threshold (the preset warning threshold is 85% of the rated load), it immediately triggers audible and visual warning signals and transmits the warning information to the control system and the supporting intelligent terminal to remind the on-site operators to adjust the load distribution in time. If the load continues to rise and reaches the rated threshold, the dynamic overload warning module will quickly send a linkage command to the control system. In conjunction with the fire trip shunt trip accessory of the circuit breaker, it will accurately cut off the overload circuit to prevent safety hazards such as line overheating and equipment damage caused by overload. 5. The present invention can ensure that the device can be moved flexibly and positioned precisely in complex and restricted terrains such as old residential areas and narrow streets through the universal wheel structure; the locking mechanism can achieve reliable fixation in the power supply state to prevent the equipment from slipping or tipping over; the rain cover can effectively block rainwater, sand and dust and debris from entering the cabinet, avoiding moisture, short circuit or corrosion of key components such as internal conductors, circuit breakers, and wiring busbars, and ensuring that the device can still operate safely and stably in harsh outdoor environments such as rain, open air, and humidity. Attached Figure Description

[0017] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0019] In the diagram: 1. Circuit breaker; 2. Rain cover; 3. Intelligent monitoring system; 4. Display screen; 5. Emergency socket module; 6. Output aviation connector; 7. Iron core winding voltage regulating unit; 8. Voltage regulating compensation sub-cabinet; 9. Casters; 10. Outgoing aviation connector; 11. Power tap changer cabinet. Detailed Implementation

[0020] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] like Figure 1 As shown, this invention provides a combined voltage-regulating low-voltage generator car quick-connect box, which includes a power tapping bus 11 and a voltage-regulating compensation sub-cabinet 8, as well as an intelligent monitoring system 3 and a control system electrically connected to the power tapping bus 11 and the voltage-regulating compensation sub-cabinet 8. The power tapping bus 11 is directly connected to the output terminal of the low-voltage generator car and distributes the output power of the low-voltage generator car to multiple paths, enabling a single low-voltage generator car to simultaneously supply power to multiple load branches, thereby improving the capacity utilization rate of the low-voltage generator car. The voltage-regulating compensation sub-cabinet 8 is electrically connected to the output terminal of the power tapping bus 11 and can compensate and adjust the voltage drop at the end of long-distance power supply lines, thereby ensuring that the voltage on the user side remains stable within the rated range to guarantee power quality.

[0022] Specifically, in this embodiment, the power tap changer 11 includes a cabinet body, which is equipped with an incoming aviation connector, a circuit breaker 1, a wiring busbar, and an outgoing aviation connector 10. The incoming aviation connector is located on one side of the cabinet body and is used for quick connection to the outgoing cable of the low-voltage generator vehicle. It preferably uses an IJ-16XB series industrial-grade quick connector, whose internal contacts employ a precision phosphor bronze spring structure to ensure extremely low contact resistance (≤0.5mΩ). It is also compatible with low-voltage cables of various specifications from 50-300mm², enabling plug-and-play use of cables with different cross-sectional areas. This significantly reduces the pressure on material dispatching at emergency repair sites due to cable model mismatches, greatly improving the versatility of emergency supplies and the flexibility of on-site operations. Furthermore, the fully insulated shell achieves an IP67 protection rating, completely eliminating the contact heating and exposed live wire risks associated with traditional bolt crimping.

[0023] Two sets of outgoing aviation connectors 10 are provided, symmetrically arranged on the other side of the main cabinet, and electrically connected to the output terminal of the circuit breaker 1 via a busbar, for distributing the power from the low-voltage generator truck to two independent load branches; moreover, the two sets of outgoing aviation connectors 10 preferably adopt IJ-16XB series industrial-grade quick connectors. In this embodiment, the outgoing aviation connectors 10 can be seamlessly connected in series with the standardized aviation connector interface of the voltage regulating compensation sub-cabinet 8, and can also be directly connected to the user-side branch box, realizing a flexible power supply mode of "one vehicle to multiple units".

[0024] Furthermore, as a preferred option, phase sequence color-coded identification components can be installed at the incoming and outgoing aviation connectors 10. For example, strictly following the power industry's phase sequence marking standards: phase A is yellow, phase B is green, phase C is red, and neutral (N) is blue. The covers of the incoming and outgoing aviation connectors 10 are distinguished according to the standard phase sequence colors of yellow, green, red, and blue, respectively. This allows operators to visually identify the phases by color, effectively avoiding equipment damage and power supply failures caused by incorrect phase sequence connections, and further improving the accuracy and safety of on-site wiring. Correspondingly, it can color-code the conductive wires between the incoming aviation connector and circuit breaker 1, circuit breaker 1 and the wiring busbar, and the conductive wires between the outgoing aviation connector 10, forming a one-to-one correspondence of phase colors across the entire link from input to output. This facilitates quick verification, wiring, and troubleshooting by operators, significantly reducing the difficulty of on-site wiring and the risk of misoperation, and improving the efficiency of emergency repair operations. Even better, the inner side of the cover plate can be provided with a raised rib anti-foolproof structure, and the raised ribs of different phase sequence cover plates are different in shape, so that they can only be engaged with plugs of the same phase sequence, forming a double insurance of "color visual recognition + physical structure anti-foolproof", which further improves the safety and fault tolerance of emergency access.

[0025] Meanwhile, it can also set temperature monitoring contacts inside the incoming and outgoing aviation connectors 10, and use a temperature sensor set at the temperature monitoring contact to feed back the temperature rise data of the connection point to the data processing module of the intelligent monitoring system 3 in real time, so that the dynamic overcapacity early warning module of the intelligent monitoring system 3 can trigger an alarm when the temperature rise is abnormal, thereby further improving the safety of equipment operation.

[0026] The busbar is made of T2 electrical copper and has one input and two output terminals fixedly installed on it. The one input and two output terminals include one input terminal and two output terminals. The input terminal is electrically connected to the circuit breaker 1 and is used to receive single-phase or three-phase power from the low-voltage generator. The two output terminals are symmetrically arranged on both sides of the input terminal and are electrically connected to two sets of output connectors 10, thereby realizing the power distribution from a single power source to dual loads.

[0027] The circuit breaker 1 is preferably a molded case circuit breaker with an electronic trip unit. Moreover, the circuit breaker 1 is equipped with fire trip shunt trip accessories at the incoming circuit between itself and the incoming line connector, and at the two branch outgoing circuits between itself and the two sets of outgoing line connectors 10. The mechanical structure of the fire trip shunt trip accessory is linked to the electronic trip unit inside the circuit breaker 1. The control coil of the fire trip shunt trip accessory is connected to a DC 24V control circuit, and this control circuit is electrically connected to the intelligent monitoring system 3 of the entire combined voltage regulating low-voltage generator quick-connect box and the external fire alarm interface. When the intelligent monitoring system 3 detects an over-limit or short-circuit fault in a branch outgoing or incoming circuit, it transmits an electrical signal to the control system. Upon receiving this signal, the control system sends a DC trip command only to the corresponding fire trip shunt trip accessory for that circuit, triggering circuit breaker 1 to trip and precisely disconnecting the faulty circuit. This ensures continuous power supply to the incoming circuit and the other branch outgoing circuit, overcoming the technical limitations of traditional generator trucks, such as lack of branch protection and wide-ranging fault impact. Furthermore, when the combined voltage regulating low-voltage generator truck's quick-connect box receives an external fire alarm signal, the control system can simultaneously send trip signals to the fire trip shunt trip accessories of all three circuits, achieving millisecond-level emergency power cutoff for the entire system and meeting fire safety regulations.

[0028] In addition, the present invention also installs casters 9 with locking mechanisms at the bottom of the main cabinet, which ensures that the device can move flexibly and accurately in complex and restricted terrains such as old residential areas and narrow streets. At the same time, the locking mechanism ensures reliable fixation under power supply, preventing the equipment from slipping or tipping over, improving the stability and safety of the device under heavy power supply and complex road conditions, and meeting the needs of rapid movement and immediate locking in emergency repair sites. A rain cover 2 is installed on the top of the main cabinet, which effectively blocks rainwater, sand, and debris from entering the cabinet, preventing key components such as internal conductors, circuit breakers 1, and wiring busbars from getting damp, short-circuited, or corroded. This ensures that the device can still operate safely and stably in harsh outdoor environments such as rain, open air, and humidity, improving the overall protection level and outdoor all-weather operation capability.

[0029] The voltage regulating compensation sub-cabinet 8 includes a sub-cabinet body, which adopts the same structural design as the main cabinet body. That is, the sub-cabinet body is also equipped with casters 9 with locking mechanisms at the bottom and a rain cover 2 at the top. This gives the voltage regulating compensation sub-cabinet 8 the flexibility to move, the stability to be fixed, and the ability to be protected from outdoor rain. This makes it easy for the whole set of equipment to be transported synchronously, combined flexibly, and deployed stably in complex sites, so as to realize modular collaborative operation.

[0030] Meanwhile, the sub-cabinet also houses a core winding voltage regulating unit 7, an input aviation connector, an output aviation connector 6, and a display screen 4, forming an independent voltage compensation and auxiliary power supply core. The core winding voltage regulating unit 7 uses a high-permeability silicon steel sheet core and a multi-layer segmented winding structure, positioned in the central load-bearing area of ​​the sub-cabinet. Its voltage regulation range covers 0~450V, with an adjustment deviation controlled within 0.2%, precisely compensating for voltage fluctuations from the low-voltage generator or voltage drops to the unacceptable range after long-distance transmission to the rated value of 400V. The input and output aviation connectors 6 are respectively located on two side walls of the sub-cabinet and are electrically connected to the core winding voltage regulating unit 7 via copper busbars. Specifically, the input connector is used to quickly connect in series with the outgoing connector 10 of the power distribution bus 11, and the output connector 6 is used to connect to the downstream load or user-side branch box to achieve "plug and play" link expansion. Moreover, both the input and output connectors 6 preferably use standardized connectors, which greatly simplifies the on-site wiring process and supports the rapid connection of compensation units after detecting excessive voltage drop at the end, effectively improving the modular integration level and response speed of the entire emergency power supply system.

[0031] Furthermore, the sub-cabinet also integrates an emergency socket module 5 with independent overcurrent protection. This emergency socket module 5 is connected in parallel to the output side of the voltage regulating unit 7 of the iron core winding. Thus, because this invention adds an extra set of power output interfaces, it can directly obtain a stable and reliable power supply while ensuring the main power supply, for driving field lighting fixtures, power tools, or portable testing equipment. This allows it to handle auxiliary power supply in multiple scenarios while undertaking the main power supply voltage regulation task, thereby expanding the device's comprehensive support capabilities in various scenarios.

[0032] The intelligent monitoring system 3, in addition to temperature sensors installed inside the incoming and outgoing connectors 10, also includes voltage transformers (PTs) and current transformers (CTs) installed in each circuit of the power tap changer cabinet 11, voltage transformers and current transformers installed in each circuit of the voltage regulation compensation cabinet 8, a data processing module communicating with the voltage transformers and current transformers, and an intelligent terminal communicating with the data processing module. Furthermore, it can collect electrical parameters such as operating voltage, current, and power factor of each circuit in real time through the voltage transformers and current transformers. The data processing module filters, amplifies, and digitizes the signals output by the voltage transformers and current transformers to form a standardized monitoring data stream. The intelligent terminal allows the on-site repair team to view the operating parameters in real time and intuitively. This provides intuitive operational parameter support for on-site repair teams, enabling a shift from traditional manual experience-based estimation and blind testing to real-time online monitoring. It ensures that key electrical indicators such as voltage deviation, current load, and temperature rise trend are under close monitoring during the power supply process, significantly improving the transparency of operation and maintenance and the scientific nature of decision-making.

[0033] In addition, to prevent the risk of overload during emergency power supply, the intelligent monitoring system 3 also integrates a dynamic overload warning module. This dynamic overload warning module communicates with voltage transformers, current transformers, and temperature sensors to collect the operating current and voltage data of each incoming and outgoing circuit in real time. Combined with a preset rated load threshold, it dynamically judges the load operating status through a built-in algorithm. When it detects that the load of a certain incoming or outgoing circuit is close to the rated threshold (the preset warning threshold is 85% of the rated load), it immediately triggers audible and visual warning signals and transmits the warning information to the control system and the supporting intelligent terminal, reminding on-site operators to adjust the load distribution in time. If the load continues to rise and reaches the rated threshold, the dynamic overload warning module will quickly send a linkage command to the control system, and cooperate with the fire trip shunt trip accessory of the circuit breaker 1 to accurately cut off the overload circuit, preventing safety hazards such as line overheating and equipment damage caused by overload, further improving the safety and reliability of emergency power supply, and realizing "early warning and early handling" of overload.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined voltage regulating low-voltage generator car quick-connect box, characterized in that, The system includes a power tapping bus cabinet (11) and a voltage compensation sub-cabinet. The power tapping bus cabinet (11) includes a cabinet body, and a circuit breaker (1) is installed inside the cabinet body. The circuit breaker (1) is electrically connected to a set of incoming air connectors and at least two sets of outgoing air connectors (10). The voltage compensation sub-cabinet includes a cabinet body, and a core winding voltage regulating unit (7) is installed inside the cabinet body. The core winding voltage regulating unit (7) is electrically connected to an input air connector interface and an output air connector interface (6). The input air connector interface is electrically connected to the outgoing air connector (10).

2. The combined voltage regulating low-voltage generator quick-connect box according to claim 1, characterized in that, The mother cabinet is equipped with a wiring busbar, which is fixedly installed with one inlet and two outlet terminals. The one inlet and two outlet terminals include one inlet terminal and two outlet terminals. The inlet terminal is electrically connected to the circuit breaker (1), and the two outlet terminals are electrically connected to two sets of outlet connectors (10) respectively.

3. The combined voltage regulating low-voltage generator quick-connect box according to claim 1, characterized in that, The circuit breaker (1) is equipped with an electronic trip unit. Fire trip shunt trip accessories are provided at the incoming circuit between the circuit breaker (1) and the incoming line connector, and at the two branch outgoing circuits between the circuit breaker (1) and the two sets of outgoing line connectors (10). The mechanical structure of the fire trip shunt trip accessory is linked with the electronic trip unit inside the circuit breaker (1). The control coil of the fire trip shunt trip accessory is electrically connected to a control circuit. The control circuit is electrically connected to the intelligent monitoring system (3) and / or the external fire alarm interface.

4. The combined voltage regulating low-voltage generator quick-connect box according to claim 3, characterized in that, The intelligent monitoring system (3) includes voltage transformers and current transformers installed in the power tap changer cabinet (11) for each circuit, voltage transformers and current transformers installed in the voltage regulation compensation cabinet (8) for each circuit, a data processing module that is communicatively connected to all voltage transformers and all current transformers, and an intelligent terminal that is communicatively connected to the data processing module. The voltage transformers collect the operating voltage of the corresponding circuit in real time and transmit it to the data processing module. The current transformers collect the operating current of the corresponding circuit in real time and transmit it to the data processing module. The data processing module processes the received electrical parameters and transmits the processed electrical parameters to the control system and the intelligent terminal. The intelligent terminal displays the received electrical parameters.

5. The combined voltage regulating low-voltage generator quick-connect box according to claim 4, characterized in that, The data processing module is electrically connected to a dynamic overcapacity early warning module. The dynamic overcapacity early warning module collects electrical parameters of each circuit in real time. When there is an electrical parameter in the collected electrical parameters that equals a preset early warning threshold, the dynamic overcapacity early warning module issues an early warning signal and transmits an audible and visual early warning signal to the control system and the smart terminal. The smart terminal displays the early warning information. When there is an electrical parameter in the collected electrical parameters that equals a rated threshold, the dynamic overcapacity early warning module issues an alarm signal and transmits the alarm signal to the control system. The control system then controls the corresponding fire trip shunt trip accessory to perform a circuit disconnection action.

6. The combined voltage regulating low-voltage generator quick-connect box according to claim 3, characterized in that, The intelligent monitoring system (3) includes temperature sensors installed inside the inlet and outlet connectors (10). The temperature sensors measure the temperature rise data of the corresponding temperature monitoring contacts in real time and transmit it to the data processing module. The data processing module is connected to a dynamic overcapacity warning module. The dynamic overcapacity warning module issues an alarm signal when the temperature rise is abnormal.

7. The combined voltage regulating low-voltage generator quick-connect box according to claim 1, characterized in that, The sub-cabinet is equipped with an emergency socket module (5), and the emergency socket module (5) and the output aviation plug are connected in parallel on the output side of the iron core winding voltage regulating unit (7).

8. The combined voltage regulating low-voltage generator quick-connect box according to claim 1, characterized in that, Phase sequence color mark identification components are provided at the inlet connector, outlet connector (10), input connector interface and output connector interface (6).

9. The combined voltage regulating low-voltage generator quick-connect box according to claim 1, characterized in that, The bottom of the mother cabinet and / or the bottom of the daughter cabinet are provided with casters (9), and the casters (9) are provided with locking mechanisms.

10. The combined voltage regulating low-voltage generator quick-connect box according to claim 9, characterized in that, The top of the mother cabinet and / or the top of the daughter cabinet are provided with rain covers (2).

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