• Electrical control cabinet related knowledge
    Electrical control cabinet related knowledge Aug 29, 2024
    An electrical control cabinet is a cabinet used to centrally install components and equipment of an electrical control system, mainly used to start, control and monitor industrial machinery or systems. 1.Structure and design: Housing: Usually made of metal, with high strength and good sealing, protecting internal components from physical damage and environmental impact. Door: Designed to be removable and equipped with a transparent observation window for easy monitoring of operating status. Ventilation: Equipped with fans or vents to ensure heat dissipation of internal components and maintain normal operating temperature. Compartment: The internal space is divided into different functional areas, such as power area, control area, wiring area, etc., to optimize layout and facilitate maintenance. 2. Internal components Controllers: Such as PLC (Programmable Logic Controller), industrial computers or relay boards, acting as the brain of the system and executing control instructions. Drivers: Including inverters and servo drives, used to accurately control the speed and torque of the motor. Instruments: Such as voltmeters, ammeters and pressure gauges, used to display system operating parameters in real time. Circuit breakers and protection: Provide overload protection, short circuit protection, and ensure system safety. Terminal blocks and connectors: Used to connect and distribute power and signals, ensuring neat and reliable wiring. 3. Functions and Applications Control function: realize the control of motor start and stop, speed adjustment, running direction, etc. Monitoring function: collect system operation data through sensors for real-time monitoring. Protection function: prevent electrical accidents through relay protection and other automatic devices. Communication function: connect with the upper system or network through industrial communication protocol to realize data exchange and remote monitoring. 4. Application areas It is widely used in automated factories, water treatment facilities, food processing, chemical production, machinery manufacturing and other industries. 5. Notes Environmental requirements: Select the appropriate model and protection level according to environmental conditions (such as temperature, humidity, vibration). Safety: Must comply with relevant international and domestic safety standards. Maintenance: Regular inspection and maintenance to ensure long-term stable operation.     
  • Work together to create a better future - Warmly welcome foreign trade
    Work together to create a better future - Warmly welcome foreign trade Aug 28, 2024
    Today, we are very honored to welcome the visit of foreign trade customers from South Africa. Here, on behalf of all the staff of [Fujian Guozhiyun Information Technology Co., Ltd.], I would like to express my warm welcome and sincere thanks to all the friends who have come from afar! Since its establishment, [Fujian Guozhiyun Information Technology Co., Ltd.] has always been committed to providing high-quality products and services, actively exploring the international market, and establishing long-term and stable cooperative relations with many countries and regions around the world. We are well aware that the arrival of every foreign trade customer is a recognition and encouragement to us, and it is also the driving force for our continuous progress and improvement. During this visit and exchange activity, we will show our company's latest products, technologies and solutions to all customers. We also look forward to discussing cooperation matters with you in depth and jointly finding more business opportunities and development space. At the same time, the customer also made the first order with us and paid the advance payment. We believe that through the joint efforts and wisdom of both parties, we will be able to achieve mutual benefit and win-win results and create a better future. Once again, thank all foreign trade customers for their trust and support for [Fujian Guozhiyun Information Technology Co., Ltd.]. We sincerely hope that this visit and exchange can become a bridge of friendship and a bond of cooperation for us, and jointly open a new chapter of cooperation between the two sides!
  • Reactive power compensation device capacitor compensation cabinet
    Reactive power compensation device capacitor compensation cabinet Aug 21, 2024
    Capacitor compensation cabinet, commonly known as reactive power compensation device, is mainly used to adjust the power factor in the power system, reduce reactive power, and improve power supply efficiency and power quality. The main function of capacitor compensation cabinet is to improve power factor and reduce reactive power. In the power system, power factor is a key indicator, which reflects the ratio of active power to apparent power. When the power factor is low, it means that there is a large amount of reactive power in the power grid, which leads to reduced power transmission efficiency and increased power loss. By investing in appropriate capacitors, reactive power can be offset and power factor can be improved, thereby reducing power loss and improving equipment utilization. There are two main methods to determine the capacity of the capacitor compensation cabinet: one is to estimate based on the transformer capacity, usually taking 20% ​​to 40% of the transformer capacity; the other is to determine the compensation capacity by calculating the actual reactive power required by the electrical equipment. For example, for a 500kVA transformer, the reactive compensation capacity is generally designed to be around 150kvar. In actual configuration, the selection of internal components of the capacitor compensation cabinet is very important. The main switch should use a fuse-type knife switch with protection function to ensure system safety; the selection of capacitors needs to be reasonably configured according to the actual load conditions and installation location. The capacity of a single capacitor is generally between 16-30kvar. In addition, the selection of components such as switching contactors, wires, and protective electrical appliances is also very critical to ensure the stable operation and maintenance convenience of the compensation cabinet. Capacitor compensation cabinet plays a vital role in the power system. Through reasonable selection and configuration, it can significantly improve the efficiency of electric energy utilization and reduce energy consumption. In actual applications, accurate calculation and configuration should be carried out according to the specific power environment and needs to ensure the optimal compensation effect.
  • Diesel generator ATS control cabinet
    Diesel generator ATS control cabinet Aug 20, 2024
    The generator ATS cabinet is a control cabinet for automatic transfer switchgear, which is used to realize automatic switching between diesel generator sets and mains power, ensuring that critical loads can continue to operate stably when power is interrupted. 1.composition: Control components and circuit breakers: ATS automatic switching cabinet consists of control components and circuit breakers, which can be manually or automatically controlled to switch on and off for power supply. PC-level and CB-level switch bodies: Switch bodies are divided into PC-level (integrated type) and CB-level (circuit breaker type). PC-level has a simple structure, small size, and fast switching function, but needs to be equipped with a short-circuit protection device; while CB-level is equipped with an overcurrent release and has a short-circuit protection function. Controller: The controller detects the working status of the monitored power supply and issues action instructions when a fault occurs to achieve automatic power switching. 2.Function: Fully automatic switching: ATS cabinet can realize fully automatic switching between mains power and generator sets, ensuring the continuity and reliability of power supply. Delay function: The system has a variety of delay functions, including mains power recovery delay, mains power failure confirmation delay, etc., to ensure the stability of the power supply system. Remote control, telemetry and telesignaling: Modern ATS cabinets can realize the remote control, telemetry and telesignaling functions of dual power supply switching, improving the convenience and accuracy of operation. 3.Applications: Important power-consuming places: ATS cabinets are particularly important in places with strict requirements on power supply, such as hospitals, data centers, industrial production lines, etc., to avoid losses caused by power outages. Unattended operation: ATS cabinet can realize unattended operation, automatically handle power switching, and reduce manual intervention and maintenance costs.   The generator ATS cabinet provides reliable power protection for key facilities through its advanced automatic control system and multiple protection mechanisms. When selecting and using the ATS cabinet, our company will fully consider its technical parameters, performance characteristics and maintenance requirements to ensure the efficient operation of the power system.
  • Knowledge about electrical explosion-proof cabinets
    Knowledge about electrical explosion-proof cabinets Aug 09, 2024
    An electrical explosion-proof cabinet is a device specially designed to safely control and protect electrical systems in flammable and explosive environments. The basic functions and importance of electrical explosion-proof cabinets: Basic functions: Electrical explosion-proof cabinets are mainly used to prevent explosions caused by sparks or heat generated by electrical equipment. They are suitable for explosive hazardous environments such as petroleum and petrochemical, chemical, brewing, medicine, paint, textile, printing and dyeing, and military facilities. Its working principle is to form a micro-positive pressure environment through a positive pressure purge control system to prevent external flammable gases from entering, thereby protecting internal electrical components. Importance: In hazardous environments such as petrochemicals, the use of electrical explosion-proof cabinets is essential to ensure the safety of personnel and equipment in the workplace. They can effectively prevent fire and explosion accidents, reduce risks in the production environment, and meet strict industrial safety standards. Types and structural features of electrical explosion-proof cabinets: Type: Common electrical explosion-proof cabinet models on the market include BZY series explosion-proof positive pressure control cabinet, BKZ series explosion-proof control box, BJX series explosion-proof junction box, etc. These products combine explosion-proof technology, electronic technology, precision processing technology and other advanced technologies. Structural features: Electrical explosion-proof cabinets are usually made of high-strength materials, such as steel plate welding or stainless steel, with excellent explosion-proof performance and anti-corrosion capabilities. The cabinet design takes into account the heat dissipation requirements, internal air pressure balance, and safe power-off measures in emergency situations. Application scope and selection points of electrical explosion-proof cabinets: Application scope: Electrical explosion-proof cabinets are widely used in flammable and explosive environments such as coal mines, oil mining, refineries, chemical plants, pharmaceutical plants, etc., especially in key areas where explosion risks need to be strictly controlled. Selection points: When choosing an electrical explosion-proof cabinet, you should consider its safety, applicable explosive and dusty environments, temperature groups, protection levels and other factors. For example, different series of explosion-proof cabinets are suitable for different hazardous areas and explosive gas environments, and users should choose according to specific application scenarios.
  • Power Distribution Panel Troubleshooting Tips
    Power Distribution Panel Troubleshooting Tips Aug 05, 2024
    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.  
  • Improve the operation and maintenance efficiency of electrical automation systems
    Improve the operation and maintenance efficiency of electrical automation systems Aug 02, 2024
    Five strategies to improve the operation and maintenance efficiency of electrical automation systems 1.Periodic inspection Regular inspections are an effective way to identify and resolve potential problems. Through routine inspection of electrical connections, insulation status, and overall equipment condition, problems can be discovered and repaired in time to avoid large-scale failures. For example, through systematic quarterly inspections, a chemical plant successfully avoided production line shutdowns due to motor failures. 2.preventive maintenance Develop a preventive maintenance plan based on the equipment's operating cycle and historical fault data, including regular replacement and upgrade of key components such as motors, sensors, etc. This method can not only reduce sudden failures, but also improve the overall performance and stability of the system. For example, by regularly replacing sensors, a metallurgical company effectively controlled the temperature accuracy during the production process and significantly improved product quality. 3.Fault diagnosis and timely repair When equipment fails, rapid and accurate fault diagnosis and timely repair are critical. Using modern fault diagnosis technologies, such as vibration analysis, temperature monitoring and ultrasonic testing, problems can be located and repaired in their early stages to avoid their expansion. For example, a papermaking company successfully reduced its mechanical failure rate and saved a lot of maintenance costs by implementing an advanced vibration monitoring system. 4.Data analysis and performance optimization Using data analysis tools to collect and analyze equipment operating data can provide an in-depth understanding of the equipment's operating status and its trends. Using these data, we can predict possible problems with the equipment and make optimization adjustments in advance, which not only improves the operating efficiency of the equipment, but also reduces energy consumption and maintenance costs. For example, an automobile manufacturer optimized its production process and improved production efficiency and product quality by analyzing the operating data of assembly line machines. 5.Continuous training and knowledge updates Continuous training of operators and maintenance teams to ensure that they master the latest technology and maintenance knowledge is another important aspect to improve maintenance efficiency. With the continuous introduction of new technologies and new equipment, only continuous learning and adaptation can effectively carry out equipment management and troubleshooting. For example, through regular technical training, an electronic equipment manufacturing plant significantly improved its maintenance team's ability to handle complex electronic control systems.      
  • Electrical control cabinet What are the components in the cabinet?
    Electrical control cabinet What are the components in the cabinet? Jun 25, 2024
    The main functions of the electrical control cabinet include connecting or disconnecting the circuit, protecting the circuit, and issuing alarms in the event of failure or abnormal operation. Shell:The control cabinet enclosure is an important component in electrical manufacturing and design. Its main function is to provide physical protection and environmental protection for the electrical equipment inside. Isolator:In electrical control cabinets, the role of isolators is not only to physically isolate electrical connections, but more importantly to provide a layer of safety protection to ensure that in certain abnormal situations, such as when exposed wires are energized or circuits fail, the danger of indirect electric contact can be effectively prevented. Transformer, Power Supply:Transformers play a vital role in the power system. They can convert any AC voltage into a target voltage with the same frequency to meet the needs of power transmission, distribution and use. Fuse:A fuse is an electrical component used to protect circuit safety. Its main function is to automatically cut off the power supply when the current exceeds the set value to prevent circuit overload, short circuit, failure and equipment damage. Breaker:A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions, and can close, carry and interrupt current under abnormal circuit conditions within a specified time. Terminals:Terminal blocks are an important part of electrical connections and are mainly used to achieve reliable connection and convenient disconnection between wires or cables. PLC:A microprocessor-based digital electronic device used for automated control that controls machinery or production processes by storing and executing control instructions. Cables, Connectors:The reliability of a control panel depends on the quality of the electrical connections between components, which are made up of cables and crimps at both ends. Cables are widely used in the fields of power transmission and communication, while connectors are used to connect cables to devices or between cables. Most electrical control panels have the above components, but it does not mean that every electrical control cabinet has the same functions. Our company uses high-end electrical cabinet accessories to provide you with the best customized services.
  • Maintenance method of power distribution cabinet
    Maintenance method of power distribution cabinet Jun 05, 2024
    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.
  • Generator set ATS fully automatic control cabinet
    Generator set ATS fully automatic control cabinet May 28, 2024
    WHAT DOES A GENERATOR CONTROL PANEL DO? The generator control panel can essentially be seen as the user interface that allows operators to control the generator, as well as check on system diagnostics, overall functions, and current status of a generator. Generators are heavy pieces of machinery and like all heavy equipment, can be prone to overheating, fluctuations in speed, and can suffer from everyday wear & tear, engine fatigue, or be affected by ambient temperatures and climate. Critical functions include protecting your generator’s engine by monitoring oil pressure, coolant temperature, and automatically shutdown the generator engine to prevent irreparable or costly damage. HOW DOES A GENERATOR CONTROL PANEL WORK? Generator control panels contain a microprocessor that can process and manipulate input from sensors to help provide feedback to the genset to monitor itself and manage any processes that come about. A common feedback setting would be temperature. When the generator engine begins to reach temperatures meet or exceed to temperature sensor setting, the generator could be prompted to shutdown automatically to prevent damage. Generator control panels are often paired together with an Automatic Transfer Switch (ATS). An ATS will prompt the generator to kick in seconds within the event of power loss due to power outage. Once power is restored from the main power grid, the generator will be prompted to shut off, as service from the main grid will resume. This is simply due to the fact that because the ATS is connected to the main grid, the ATS can detect an outage and signal the control panel to start the generator without the need to manually start the generator. Without an ATS (Automatic Transfer Switch), you will need staff on-site to manually flip the switch on the generator controls to run the generator in the event of a power outage and must also manually turn off the generator once power is restored. Failure to turn off the generator after power to the main grid is restored can cause an effect called back feeding, which can be lethal to any electricians that are working on the power lines. POTENTIAL BENEFITS OF GENERATOR CONTROL PANELS Generator control panels offer a variety of benefits, including: Error elimination: A generator control panel helps eliminate operating errors. Increased efficiency: Improved generator control can help your generator run more efficiently. Improved safety: Current and volt supervision support safer operation. Fewer costs: Enhanced generator control will help lower generator upgrade frequency as well as maintenance and operation costs. Enhanced reliability: Being able to monitor generator function and perform event analysis can yield insight on making your generator more reliable.
  • What is the Difference Between Switchgear and Distribution Cabinets?
    What is the Difference Between Switchgear and Distribution Cabinets? May 23, 2024
    The Differences Between Switchgear and Distribution Cabinets are as Follows: 1. The function is different: switchgear is a complete set of electrical switchgear and control equipment, it is used as a power center and the main distribution device, mainly to play the role of a switch on and off. And distribution cabinet is to plays the function of distribution of electrical energy, line overload, short circuit, leakage protection role.   2. Different sizes: switchgear cabinet volume, general height in 1800mm, 2000mm, and 2200mm three, etc. And distribution cabinet volume is small, generally common only palm-sized, can be concealed in the wall, can also stand on the ground.   3. There are differences in installation sites: switchgear cabinets are often set up in substations, distribution rooms, and other places. Distribution cabinets can be installed in a variety of places, such as schools, institutions, hospitals, factories, workshops, families, etc.   4. The line material is different: switchgear cabinet mainline is often dominated by copper row, while the distribution box inside more wires.   5. Different components: low-voltage cabinets with plastic case circuit breakers and frame circuit breakers mostly. And capacitor cabinets. And distribution boxes in the content of some more complex, common is a larger switch with a string of micro-breakers below.   Switchgear Selection Points are As Follows: 1. Choose a well-known brand because the switchgear is a complete set of combined products, once encountered technical problems, equipment maintenance. And replacement are relatively troublesome. So in the case of ample budget, you should try to choose a well-known brand, well-known brands encounter problems when the solution is more efficient.   2. Before buying and selling to the manufacturer to obtain the switchgear inspection qualification. If there is no is an irregular product. Secondly, we should see whether the components of the switchgear are configured according to the requirements of the drawings.   3. To consider the cabinet material, generally speaking, good quality switchgear, components such as brackets are imported aluminum zinc plate   4. In and out of the line way, the general switchgear has two kinds of connection: one is in and out of the line cable room connection. Another is the first in and out of the line from the top of the cabinet through the wall casing led. And bus bar bridge connected bus bar bridge and then through the good casing and overhead line connection. If the second is applied, to be installed at the time of the site to supervise the work.      
  • Generator set ATS fully automatic control cabinet
    Generator set ATS fully automatic control cabinet May 21, 2024
    The working principle of the ATS control cabinet is to monitor the status of two power supplies, usually including main power supply (such as mains power) and backup power supply (such as generator). When the main power supply is normal, the ATS cabinet connects the load to the main power supply; once the main power supply is interrupted or fails, the ATS cabinet automatically switches the load to the backup power supply to ensure the continuity and reliability of power supply. When the main power supply returns to normal, the ATS cabinet will automatically switch the load back to the main power supply and stop the backup power supply.   The main components of the ATS cabinet include control components and circuit breakers, which can achieve fast and smooth power conversion and avoid power interruption caused by power switching. This kind of equipment is particularly important in power systems with strict requirements on power interruption, such as critical facilities such as hospitals and data centers, because these places require uninterrupted power supply to ensure normal operation and safety.   The ATS cabinet is simple in design and easy to operate, and can realize unattended automatic switching function. Depending on the application requirements, ATS cabinets can also be equipped with manual operation options to allow for human intervention in special circumstances. In addition, to ensure safe and reliable operation, ATS cabinets are usually equipped with short-circuit protection devices and other safety features.    
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