distribution box

I. Low-voltage Distribution Box: The "Central Nervous System" of the Power System The low-voltage distribution box is a power distribution device that integrates electrical components such as circuit breakers, contactors, and relays. It can achieve power distribution, switch control, and fault protection for electrical equipment. Its core advantages are as follows:   Flexible power distribution: It distributes electrical energy to multiple circuits as required, meeting the power demands of different equipment. Safety protection: It is equipped with overload, short-circuit, and leakage protection devices to avoid electrical accidents. Convenient management: It centrally controls the on-off of the circuit, simplifying the maintenance process of the power system. II. Analysis of Core Parameters: Selecting the Right Product by Understanding the Specifications Electrical parameters: Determining the "heart" performance of the equipment   Rated voltage: The main circuit is commonly 380V AC (suitable for industrial equipment such as three-phase motors), and some models support 660V AC. The auxiliary circuit covers 220V AC/DC, etc., and it needs to be matched according to the voltage of the control system. Rated current: The range is from 400A (small distribution box) to 4000A (large power distribution system). For example, the rated current of the vertical bus system of the GCK series is 400-800A, and it needs to be selected by calculating according to the total power of the load. Breaking capacity and withstand current: Rated breaking capacity (e.g., 15kA for PGL1 type and 30kA for PGL2 type): It refers to the ability to quickly cut off the current during a short circuit. The higher the value, the stronger the safety. Short-time withstand current (e.g., 80kA/1 second for the horizontal bus of the GCK series): It measures the ability of the equipment to withstand the instantaneous short-circuit current, ensuring that the equipment is not damaged during a fault.   Environmental parameters: The key to adapting to complex working conditions   Temperature and humidity: The normal operating temperature is -5℃ to +40℃, and the humidity does not exceed 50% (at 40℃). If the environment is humid (such as in basements or outdoors), a moisture-proof box should be selected. Altitude and protection level: For indoor use, the altitude does not exceed 2000m. The protection level is above IP40 (preventing solid foreign objects and splashing water), and for outdoor use, it needs to reach IP54 or higher (preventing heavy rain and dust).   Structural design: The convenience of installation and expansion   Installation method: It supports surface-mounted on the wall, recessed installation in the wall (indoors), or floor-mounted, surface-mounted on the wall outdoors. It needs to be selected according to the space conditions. Expandability: The modular design allows for flexible addition or reduction of circuits. For example, new circuit breakers or leakage protectors can be added to adapt to the expansion requirements of future loads. III. Three Major Application Scenarios: Matching Functional Configurations as Required Industrial manufacturing: Ensuring the stable operation of the production line   Scenario: Power distribution for equipment such as machine tools, fans, and conveyors in small factories and workshops. Requirement: High rated current (such as above 800A) and strong breaking capacity (to deal with the impact current during motor startup). The GCK series or customized industrial-grade distribution boxes are recommended.   Commercial buildings: Efficiently managing diverse electrical equipment   Scenario: Power distribution for lighting, air conditioning systems, elevators, charging piles, etc. in shopping malls. Requirement: Multi-circuit control (such as 10-30 circuits) and intelligent monitoring (real-time display of voltage/current). An intelligent distribution box with an RS485 communication interface can be selected for convenient remote management.   Infrastructure: A reliable choice for harsh environments   Scenario: Outdoor power distribution cabinets, municipal engineering, and new energy charging piles. Requirement: High protection level (such as IP65 for water and dust protection) and corrosion-resistant housing (stainless steel material) to ensure long-term operation in humid, dusty, or salt spray environments. IV. Purchase Guide: Pitfall Avoidance Points and Selection Skills Clarify the load requirements: Calculate the total power (kW) → Convert the rated current (I = P/√3/U/cosφ), and reserve a 20% redundant capacity to avoid overload. Example: For a 30kW three-phase device, the current is approximately 57A, and a distribution box with a rated current of 80A can be selected. <li style="color: rgba(0, 0, 0, 0.85) !important; fon

The afterglow of the Spring Festival is still there, and the new year has already begun. Fujian Guozhiyun officially started construction on February 5, 2025. With a new attitude and full enthusiasm, we will greet the opportunities and challenges of the new year and start a new journey of working hand in hand with our customers.     The past year has been full of challenges and opportunities for Guozhiyun and the entire foreign trade automation electrical equipment industry. The ever-changing global trade pattern, the rapid iteration of technology, and the diversification of market demand have brought many uncertainties to the development of the industry, but also spawned new growth space. With its profound technical background, keen market insight, and strict pursuit of quality, Guozhiyun has stood out in the fierce market competition, established long-term and stable cooperative relationships with many customers, and jointly overcome technical difficulties one after another, achieving steady growth in business.   In terms of technological innovation, Guozhiyun has always been unwavering in increasing its R&D investment, bringing together a group of top automation and electrical experts and engineers in the industry, and is committed to developing automation and electrical equipment with higher performance, greater intelligence, and greater energy conservation and environmental protection. These innovative achievements have not only effectively improved the competitiveness of products, but also provided strong support for customers' production line upgrades and production efficiency improvements. For example, the company's independently developed new intelligent automation control system can achieve accurate monitoring and intelligent scheduling of the production process, greatly improving the flexibility and stability of production, reducing labor costs and production risks, and is well received by customers.   The new year has begun. With full expectations and new goals, we are ready to continue to deepen our research and development, production and service of automated electrical equipment to create more value for you.   Thank you again for your continuous support and trust in Fujian Guozhi Cloud. Sincerely wish you a prosperous business and all the best in the new year!    

The distribution panel is an important part of the power system, responsible for distributing electrical energy from the power source to various loads. During long-term operation, the distribution panel may fail for various reasons, affecting normal power supply. Mastering some troubleshooting techniques is essential to ensure the stable operation of the power system. 1. Mechanical fault inspection: The power distribution panel contains two parts, mechanical and electrical. Failure of the mechanical part may cause problems in the electrical part. Therefore, you should first check whether the mechanical parts, such as switches and contactors, have failed due to mechanical damage.   2. Electrical fault inspection: After confirming that there is no problem with the mechanical part, check the electrical part, including whether there is a circuit break, short circuit or poor contact in the line and terminal. 3. Visual inspection: Use the simplest and easiest method to check at the beginning, such as observing whether there are obvious fault phenomena such as fuse breaking, switch tripping, etc.   4. Complex method: If the simple method cannot solve the problem, use more complex detection methods, such as using a multimeter to measure resistance and voltage. 5. External inspection: Without disassembling the equipment, check whether the switches and indicator lights on the equipment panel are working properly through external operation to minimize the scope of the fault.   6. Internal inspection: If the external inspection cannot solve the problem, open the distribution panel to check the status of the internal components and connecting wires. 7. Static inspection: Check the resistance, wiring, etc. in the power-off state to avoid expanding the scope of the fault or causing unnecessary losses after power is turned on.   8. Dynamic inspection: After completing the static inspection and confirming safety, turn on the power to measure dynamic parameters such as voltage and current. 9. Public circuit inspection: Prioritize the public circuits of the distribution panel, such as the power input line, as failures in these circuits can affect the operation of the entire system.   10.Dedicated circuit inspection: After confirmng that there is no problem with the public circuit, check the dedicated circuits connected to the specific loads. 11.Dealing with common faults: First deal with common faults in the power distribution panel, such as poor contact, blown fuses, etc. These problems are generally easy to solve.   12.Solving complex faults: After eliminating common faults, focus on solving those rare and complex electrical faults. Distribution panel troubleshooting requires a systematic strategy and rich practical experience. By mastering the above troubleshooting techniques, you can efficiently and accurately find and solve problems. At the same time, regular maintenance and inspection are key measures to prevent failures, help extend the service life of the distribution panel and ensure the stable operation of the power system.  

Daily care: Regularly check whether there are signs of pests and rodents in the distribution cabinet, and take appropriate trapping measures to prevent pests and rodents from damaging electrical equipment. Confirm whether all warning signs and maintenance signs are placed in the correct position, and whether emergency tools and lamps are complete and normal. Check whether the cable connectors are hot and discolored, whether the grounding wires are rusted, and ensure that the cable connections are firm and not overheated. Check whether the capacitor casing in the capacitor cabinet is in good condition, whether there is leakage or expansion, and whether the indicator light is in good condition. Clean the inside and outside of the distribution cabinet regularly to remove dust and dirt, and maintain good ventilation and heat dissipation conditions. First level maintenance: Check whether the busbar and its lower lead are firm, whether the secondary circuit wiring is firm, and whether the fuse is intact. When the air switch is disconnected without capacitor, test the action of the capacitor controller, and adjust the overvoltage protection, undercurrent protection, and switching threshold. All indicator lights should be intact, check whether the controller switch position is normal, the operation should be normal, and whether the manual debugging mechanical interlocking part is reliable. Check whether the fasteners of each soft starter and inverter are loose. Secondary maintenance: Check whether the drawer switch can be pushed in or out flexibly, whether its mechanical locking is reliable, and whether the contactor contacts are in good condition. Check whether the elastic force of each blade in the circuit breaker is normal and whether the arc extinguishing device is intact. Check whether the wiring nuts of each cable head are tightened to ensure the stability of the cable connection. After disconnecting the main switches of the power receiving cabinet and the contact cabinet, check whether the secondary wiring head has good contact and is tightened without looseness. Safety Precautions: Before maintenance, the power supply must be cut off to ensure that the voltage on the power distribution cabinet has been eliminated. Operators should wear anti-static clothing, insulating shoes, and insulating gloves for operation. During maintenance, strictly abide by safety regulations and recommendations. If necessary, contact professionals for repairs.

  1.Power distribution: The electrical box distributes power to different circuits and equipment through internal switching devices, ensuring that electricity can be reasonably transmitted to various places where it is needed. 2. Control function: Users can control the connection or disconnection of circuits through manual or automatic switches inside the electrical box, thereby controlling the operation status of various electrical equipment connected to the electrical box. 3. Protection function: The electrical box is equipped with protective appliances, such as circuit breakers, leakage protectors, etc., which can automatically cut off the power supply in case of overload, short circuit or leakage in the circuit, protecting the safety of the circuit and equipment. 4. Measurement function: The measuring instruments inside the electrical box can display parameters such as current and voltage, helping to monitor the working status of the circuit and the use of electrical energy. 5. Convenient management: All power related components are centrally installed in the electrical box for easy maintenance and management. 6.Safe isolation: Electrical boxes are usually designed with a certain level of protection to prevent direct contact with live parts and reduce the risk of electric shock. 7.Applicable occasions: Electrical boxes are widely used in various places such as homes, schools, hospitals, etc., while distribution cabinets are more commonly used in centralized power supply situations such as industrial electricity and building electricity. 8.Regulatory requirements: In some countries and regions, the use of electrical boxes is a mandatory measure for power distribution and control in accordance with electrical safety regulations. 9.Beautiful and tidy: The electrical box can hide wires and electrical equipment, making the installation environment more beautiful and tidy. 10.Space saving: The design of electrical boxes is usually compact, which can save installation space, especially in limited space home or office environments. 11.In summary, electrical boxes are an indispensable component of the power system. They not only provide the basic functions of power distribution, but also have multiple functions such as control, protection, measurement, and safety isolation. They are important equipment for power supply and management in modern buildings and facilities.    

A distribution box is an electrical equipment used for distributing electrical energy, which has the functions of safety, convenience, and control of power supply.   Here are some detailed information about the distribution box:   1. Structural composition: The distribution box is usually composed of a metal cabinet, which is equipped with switch equipment, measuring instruments, protective appliances, and auxiliary equipment inside. These components are assembled in enclosed or semi enclosed spaces according to certain electrical wiring requirements. 2. Functional use: The main function of the distribution box is to connect, disconnect, and protect circuits. It can manually or automatically control circuit connections, and when the system malfunctions or operates abnormally, it can cut off the circuit or issue an alarm signal through protective appliances. At the same time, the measuring instruments inside the distribution box can display various parameters during operation and provide prompts or signals for deviations from normal working conditions. 3. Application scenario: Distribution boxes are widely used in various places such as homes, schools, hospitals, etc. It helps to manage and maintain the power system. Especially in the event of circuit failure, the distribution box is beneficial for quickly locating and repairing problems. 4. Classification method: According to different structures and purposes, distribution boxes can be divided into power distribution boxes, lighting distribution boxes, metering cabinets, etc. In addition, there are two forms: fixed type and drawer type. The former is commonly used in situations with dispersed loads and fewer circuits, while the latter is widely used due to its space saving, convenient maintenance, and multiple outgoing lines. Overall, the distribution box is a key equipment to ensure the normal operation and safety of the power system. It not only improves the convenience of electricity use, but also ensures electricity safety.      

The power distribution cabinet we custom-designed for the mall is able to precisely control and monitor power throughout the mall. The core function of the power distribution cabinet is an advanced intelligent control module. This module continuously collects real-time power consumption data from various areas of the mall, such as different floors, individual shops, and public facilities. It uses complex algorithms to analyze this data to optimize power distribution in real time.   For example, during peak shopping hours, when the mall has a large number of customers and lighting, air conditioning, and other power systems are running more frequently, the intelligent control module automatically adjusts power resources to meet the growing demand in high-traffic areas. Conversely, during off-peak hours, it reduces power supply to non-essential areas, significantly improving energy efficiency.   The power distribution cabinet also integrates a comprehensive safety monitoring system. Multiple sensors are installed throughout the unit to detect potential electrical hazards such as overheating, short circuits, and abnormal current fluctuations. If any problem occurs, the system will immediately trigger an alarm and automatically cut off the power supply to the affected area, preventing potential electrical fires and ensuring the safety of the mall infrastructure and its personnel.   In addition to its safety and optimization features, the power distribution cabinet is easy to maintain and has future scalability. The modular design allows for quick replacement of components in the event of a failure, minimizing downtime. In addition, as Tex Mall plans to expand in the future, the cabinet can be easily upgraded or modified to accommodate additional power loads.