China Indoor load break switch for electrical systems Manufacturers, Suppliers, Factory

TBBZ High Voltage Switchgear Automatic Compensation Device is an advanced power system equipment designed to improve the stability and reliability of high voltage switchgear. The device's primary function is to monitor and regulate power voltage and power factor in real-time, ensuring optimal performance of high voltage switchgear and safe operation of the power system. The following article will discuss the features, working principles, and benefits of the TBBZ High Voltage Switchgear Automatic Compensation Device. Features: The TBBZ High Voltage Switchgear Automatic Compensation Device is designed with several advanced features that significantly improve the functionality of high voltage switchgear. The device is capable of precise power voltage and power factor regulation and comes equipped with advanced measuring and control technologies. It is also built with intelligent protection systems that prevent device failure and protect the system from overloads, short circuits, and other electrical hazards. Working Principles: The TBBZ High Voltage Switchgear Automatic Compensation Device operates on the principle of reactive power compensation. It measures the power factor and voltage of the electrical system using a digital controller and adjusts the capacitance or inductance of the device accordingly. By doing so, the device efficiently mitigates power loss and regulates the power factor, improving the stability and reliability of high voltage switchgear. Benefits: The TBBZ High Voltage Switchgear Automatic Compensation Device offers several benefits to power system operators. It enhances the system's performance, improves voltage regulation, increases energy savings, reduces power loss, and mitigates power surges, preventing equipment damage. It also improves the lifespan of high voltage switchgear and reduces maintenance requirements, making it a highly cost-effective and practical power system equipment. Overall, the TBBZ High Voltage Switchgear Automatic Compensation Device is a highly advanced and reliable system equipment that can significantly improve the stability and performance of high voltage switchgear systems. Its advanced features, precise control, and intelligent protection systems make it a highly desirable asset for power system operators, enabling them to efficiently regulate power voltage and power factor, mitigate power loss, and improve the lifespan of high voltage switchgear.

The LZZBJ9-10 current transformer is a versatile indoor epoxy resin-casted pillar-type product designed to operate in a wide range of conditions. It is specifically used for current, energy metering, and relay protection purposes in power systems with a rated frequency of 50Hz and a rated voltage of 10kV or below. This current transformer is suitable for both centralized and other types of switchgear installations. One notable feature of the LZZBJ9-10 current transformer is its ability to cater to user requirements by offering options for dual or triple winding ratio structures. This flexibility allows for customized performance based on specific needs. Currently, the LZZBJ9-10 current transformer is available in multiple accuracy classes such as 0.5, 0.2, 0.5S, and 0.2S. It also offers different protection classes such as 10P10 and 10P20. This range of options ensures that users can select the appropriate level of accuracy and protection based on their specific application needs. Furthermore, the LZZBJ9-10 current transformer can be customized to meet non-standard product requirements based on customer demands. This level of adaptability enables users to obtain a tailored solution that precisely fits their unique specifications. In conclusion, the LZZBJ9-10 current transformer is a reliable and efficient choice for power systems operating at 50Hz and below 10kV. Its pillar-type design, epoxy resin casting, and versatility make it suitable for various switchgear installations. With a range of accuracy and protection classes available, users can select a configuration that aligns with their specific requirements. Additionally, the option for customizing non-standard products ensures that the LZZBJ9-10 current transformer can cater to diverse customer demands.

The FZN25-12D type vacuum load break switch and FZRN25-12D type combination appliance adopt a overall structure where the operating mechanism is arranged on the side of the main circuit (available in right or left side arrangement according to user's needs). The main conducting part consists of insulation cover, static contact, movable contact, conductive cylinder, and vacuum arc chamber. The combination appliance also includes a current-limiting fuse. This product uses the TF351 type vacuum arc-extinguishing chamber with a ceramic outer casing and 25 copper contacts. It features a flat contact structure, which results in minimal electrical wear and a long service life. With high breaking and closing capabilities, it offers strong performance and easy operation and maintenance. The fused switch is integrated with the operating mechanism, combining the functions of an isolating switch, load switch, and grounding switch into one compact structure. It has a small size, convenient installation, and flexible operation. The switch is equipped with a dynamic isolated contact and a vacuum arc-extinguishing chamber, which are arranged in series and linked according to the specified operating procedure, achieving a one-time operation. The cone-shaped static contact, insulation cover, and movable contact structure separate the busbar and load switch units, ensuring the personal safety of workers. When the grounding switch is closed, the movable contact automatically isolates the breaking point, providing excellent protection. The switch, grounding switch, movable contact, and cabinet door light are strictly in accordance with the "five preventions" mechanical interlocking to prevent misoperation. The switch mechanism is a spring-stored energy type, featuring both manual and electric energy storage functions. Once energy storage is complete (with the spring at the midpoint), it will automatically close, and for opening, it can be done manually with a decoupling lever or by an electromagnetic coil. This facilitates the implementation of remote control requirements for switch opening and closing operations. The switch can be powered by both AC and DC sources, and its working principle is similar to that of a circuit breaker. It is generally equipped with a simple arc extinguishing device, but its structure is relatively simple. The diagram shows a type of compressed air high-voltage load break switch. During breaking, under the action of the opening spring, the main shaft rotates clockwise. On one hand, the piston moves upward by compressing the gas through the crank-slider mechanism; on the other hand, the transmission system composed of two sets of four-link mechanisms opens the main contact first, and then the arc extinguishing contacts, blowing out the arc with the compressed air from the nozzle. When closing, the main contact and arc extinguishing contacts rotate clockwise at the same time under the action of the main shaft and the transmission system, with the arc contacts closing first and then the main contacts closing subsequently. During closing, the opening spring is also storing energy. As the load break switch cannot interrupt short-circuit currents, it is often used in combination with a current-limiting high-voltage fuse to not only complete the function of breaking the circuit but also reduce the thermal and mechanical forces caused by short-circuit currents.

LMZK Series Current Transformer is a compact and lightweight device known for its small size, easy installation, and convenient functionality. It is widely used in compact fully insulated ring main units and is highly compatible with remote terminal devices like RTUs and FTUs, providing essential data support for the entire system. The installation process is simple and efficient, as it can be directly attached to the connected input and output cables. This current transformer has found extensive applications in various models of compact fully insulated ring main units, including SafeRing/Plus, Uniswitch, RM6/SM6, SVS, GA/GE, FB, and SS. Additionally, it is also suitable for use in combination substations and cable junction boxes. The LMZK Series Current Transformer utilizes high-quality imported silicon steel sheets with high magnetic permeability as its magnetic core material. This unique choice ensures that the core can be divided and offers minimal magnetic flux loss. The half-ring-shaped core and secondary winding are encapsulated in high-quality epoxy resin under vacuum in a flame-retardant plastic casing. This design not only guarantees moisture resistance but also provides stable and maintenance-free performance. During installation, the two half-ring cores are securely clamped onto the phase-separated cables using durable stainless steel brackets. This integration with the cables creates a harmonious and aesthetically pleasing appearance. The LMZK Series Current Transformer is compatible with 10KV cables ranging from 35mm2 to 400mm2, and the stainless steel brackets are resistance-free and ensure a reliable and robust connection. In summary, the LMZK Series Current Transformer stands out due to its compact size, lightweight nature, easy installation, and compatibility with various remote terminal devices. Its high-quality materials and superior design contribute to its exceptional performance in fully insulated ring main units, combination substations, and cable junction boxes.

KYN28-24 switchgear is a high-voltage switchgear, mainly used in substations, industrial and mining enterprises, and urban distribution networks. The following is an explanation of the product working principle of the KYN28-24 switchgear: Main components: KYN28-24 switchgear is composed of main components such as circuit breaker, isolating switch, grounding switch, motor drive mechanism and interlocking device. These components work together to make the switchgear work properly. Workflow: When the power system fails or needs to be repaired, KYN28-24 switchgear plays a key role. First, isolate the faulty part from the power system by operating a circuit breaker. Then use the isolation switch to completely isolate the faulty part from the rest. Then, ground the faulty part through the grounding switch to ensure personal safety and equipment protection. Finally, the motor drive mechanism is used to control the switching state of the switchgear to realize the normal operation of the system. Protection function: KYN28-24 switchgear has a variety of protection functions, mainly including over-current protection, over-voltage protection, short-circuit protection and grounding protection. When an abnormal situation occurs in the power system, the switchgear will automatically perform protection operations to avoid further damage. Interlocking device: In order to ensure work safety, KYN28-24 switchgear is also equipped with an interlocking device. The interlocking device can prevent misoperation and mutual interference, ensure the normal operation of each component, and reduce the risk of accidents. In short, the working principle of KYN28-24 switchgear is to realize the isolation, cut-off and protection of power system failure and maintenance work through reasonable configuration and arrangement of various main components. Its efficient and reliable working performance makes it an indispensable device in the power system. Our KYN28-24 switchgear has undergone strict quality inspection and can provide stable and reliable services to meet customer needs. If you have any questions or purchase intentions, please feel free to contact us.

Introducing our latest product, an advanced electrical system with outstanding performance and reliability. Designed for high voltage applications, it is built to meet demanding requirements and ensure uninterrupted power supply. With a rated voltage of 35KV, this product is capable of handling heavy loads efficiently. Its rated current of 630A enables it to deliver precise power distribution while maintaining optimal performance. In cases of sudden surges or faults, the system can handle dynamic currents of up to 50KA for 0.3 seconds, guaranteeing fast and effective protection. The thermal stable current of 20KA for 3 seconds ensures stable operation even under continuous high current conditions. To withstand power frequency variations, the system offers excellent 1-minute power frequency tolerance of up to 80KV. This feature guarantees the stability and reliability of the electrical network, reducing the risk of disruptions. Featuring a DC voltage withstand for 15 minutes of 125KV, the product showcases exceptional insulation capabilities. This attribute is particularly crucial in environments with high-voltage DC components, rendering it suitable for a wide range of applications. Additionally, our system's lightning shock withstand voltage of 185KV provides enhanced protection during electrical storms, safeguarding the entire electrical network from potential damage. The product's box protection class of IP33 offers reliable protection against solid objects greater than 2.5mm in diameter, preventing dust ingress and moisture penetration. This feature ensures the durability and longevity of the system even in harsh environments. In conclusion, our advanced electrical system is a reliable and efficient solution for high voltage applications. With its exceptional performance, robust build quality, and superior protection features, it guarantees uninterrupted power supply and peace of mind.