China Power distribution switchgear Manufacturers, Suppliers, Factory

Rongzhi Electric Power is a large-scale High Voltage Reactive Power Compensation Device manufacturer and supplier in China. We have been specialized in High voltage equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We look forward to becoming your long-term partner in China.

The FZW28 series outdoor high voltage vacuum load break switch is a versatile and reliable product designed for use in a wide range of applications. It is specifically designed to meet the requirements of power distribution and control in substations, industrial and mining enterprises, urban and rural power grids, as well as automated distribution networks and locations with frequent operations. This product complies with the GB/T 3804-2004 standard for 3.6 kV to 40.5 kV AC high voltage load break switches. It is built to provide efficient protection and control for power equipment in various scenarios. The outdoor design ensures its durability and ability to withstand harsh environmental conditions. The high voltage vacuum load break switch is an essential component in power distribution systems. It allows for the safe and reliable interruption of circuit currents during operations such as load switching, line sectionalizing, and transformer protection. With its advanced vacuum arc-extinguishing technology, this switch ensures a smooth and efficient operation, minimizing power interruptions and enhancing overall system reliability. The FZW28 series outdoor high voltage vacuum load break switch is designed with ease of installation and maintenance in mind. Its compact structure and user-friendly design make it convenient for operators to handle and operate. The product also features a robust and durable construction, ensuring a long service life with minimal maintenance requirements. In summary, the FZW28 series outdoor high voltage vacuum load break switch is a reliable and efficient solution for power protection and control in various applications. Its compliance with industry standards, advanced technology, and user-friendly design make it an optimal choice for power distribution systems.

The ZW43-12 outdoor high voltagevacuum circuit breaker is a three-phase AC 50Hz switch device designed for outdoor high voltage applications with a rated voltage of 12kV. It is primarily utilized for interrupting and closing load currents, overload currents, and short-circuit currents in power systems. It is suitable for protection and control purposes in substations and industrial and mining enterprise distribution systems. This circuit breaker adopts a pillar-type, dry structure, ensuring reliable insulation, long electrical lifespan, and maintenance-free operation. It is particularly well-suited for frequent operation environments. It can also serve as a sectional switch in electrical networks and can be equipped with a controller to enable network automation. This product complies with standards such as GB/T1984 "High-voltage AC circuit breakers," GB/T1985 "AC high-isolation switches and grounding switches," and GB/T11022 "Common technical requirements for high-voltage switchgear and controlgear standards." Introduction to the Zw43-12 High Voltage Vacuum Circuit Breaker with Isolation Knife: The Zw43-12 High Voltage Vacuum Circuit Breaker with Isolation Knife is a state-of-the-art outdoor switchgear device that offers reliable and efficient operation in high voltage power systems. With a rated voltage of 12kV, it is specifically designed to meet the demands of modern power distribution and protection requirements. Key Features: Efficient Breaking and Closing: The Zw43-12 High Voltage Vacuum Circuit Breaker efficiently interrupts and closes load currents, overload currents, and short-circuit currents in power systems. It ensures the smooth operation of electrical systems and effectively protects electrical equipment. Reliable Insulation: This circuit breaker is designed with a pillar-type, dry structure, providing reliable insulation properties. It protects against electrical breakdowns and ensures safe operation, even in harsh outdoor environments. Long Electrical Lifespan: The Zw43-12 High Voltage Vacuum Circuit Breaker is built to last, offering a long electrical lifespan. Its high-quality materials and advanced design ensure consistent performance over an extended period of use. Maintenance-Free Operation: With its robust construction and high-quality components, this circuit breaker requires minimal maintenance, reducing downtime and associated costs. It is a reliable solution for continuous operation in various applications. Suitable for Frequent Operation: The Zw43-12 High Voltage Vacuum Circuit Breaker is specifically designed for frequent operation environments. Its durable construction and advanced mechanism enable smooth and reliable switching operations, even under high-frequency usage. Automation Capabilities: By adding a controller, this circuit breaker can be integrated into automated distribution networks. This enables efficient and remote monitoring, control, and management of power distribution systems. Application: The Zw43-12 High Voltage Vacuum Circuit Breaker with Isolation Knife is widely used in various applications, including substations and industrial and mining enterprise distribution systems. It is an essential component for protecting electrical systems and controlling the flow of electricity in high voltage power networks. Compliance with Standards: This product meets the requirements specified in GB/T1984 "High-voltage AC circuit breakers," GB/T1985 "AC high-isolation switches and grounding switches," and GB/T11022 "Common technical requirements for high-voltage switchgear and controlgear standards." It adheres to international standards, ensuring high-quality and reliable performance. In conclusion, the Zw43-12 High Voltage Vacuum Circuit Breaker with Isolation Knife is a cutting-edge switchgear device that offers efficient and reliable operation in outdoor high voltage applications. Its advanced design, robust construction, and compliance with industry standards make it an ideal choice for a wide range of power distribution and protection needs. With its long electrical lifespan, maintenance-free operation, and automation capabilities, it provides a cost-effective and efficient solution for modern power systems.

In order to better adapt to the new situation of economic, social and power grid development, improve the power supply capacity and adaptability of the distribution network, reduce the loss and power supply cost of the distribution network, save land resources, and meet the development needs of the power system for "boosting, increasing capacity, upgrading and optimizing the channel", On the basis of digesting and absorbing foreign advanced technologies and design concepts, our company has designed and manufactured YBM-24/0.4 series of "HV/LV prefabricated substation" (European box type substation) with 20kV distribution voltage grade, in which high-voltage switches, transformers and low-voltage switches are pre installed in the substation. High voltage switchgear shall be selected according to the principle of small size, oil-free, good performance, high reliability, maintenance free or less maintenance, which can realize terminal or looped network operation. The power distribution transformer shall be energy-saving and environment-friendly (low loss and low noise) transformer with Dyn11 connection group, tap and 20kV power supply. The product has the advantages of high power supply reliability, reasonable structure, flexible installation, convenient operation, small size, low cost, etc. It is used in the system with high voltage of 20kV, especially in the current 20KV system, and can be directly used after the system is transformed to 20KV. It can be widely used in industrial and mining enterprises, airports, stations, residential areas, ports, highways, subways and other places in the urban network transformation.

Introducing the ZN28-12 series indoor high-voltage vacuum circuit breaker, a cutting-edge solution designed to optimize electrical performance and ensure efficient power distribution. This circuit breaker is equipped with a middle-sealed longitudinal magnetic field vacuum arc extinguisher and a new operating mechanism, guaranteeing reliable and safe operations. The operating mechanism and the vacuum arc extinguishing chamber adopt a front and rear layout, providing enhanced control and functionality. By connecting the operating mechanism to the movable conductive rod of the vacuum arc-extinguishing chamber through an insulating pull rod, it drives the movable contacts of the chamber to execute seamless opening and closing movements according to specified mechanical parameters. This precise movement enables the breaker to effectively break short-circuit currents and improves the mechanical life of the arc extinguishing chamber. To further enhance the circuit breaker's performance during operation, an auxiliary guide device is installed on the upper bracket of the fixed arc extinguishing chamber. This device ensures that the moving contacts remain well aligned during the opening and closing process, preventing any potential disruptions and enhancing the overall efficiency of the breaker. This innovation not only improves the short-circuit current breaking capability but also extends the lifespan of the arc extinguishing chamber. One of the key features of this series is the centrally enclosed longitudinal magnetic field vacuum arc extinguishing chamber. When the moving and static contacts open under load, the vacuum arc burns in the contact gap. However, the arc is swiftly extinguished when it crosses zero. The special structure of the contact generates a significant longitudinal magnetic field during arcing. This magnetic field evenly distributes the arc on the contact surface, resulting in a low arc voltage. Through this innovative design, the circuit breaker achieves a high arc voltage dielectric strength recovery speed. This unique characteristic significantly reduces the arc energy and electrical corrosion rate, ultimately improving the short-circuit current breaking capability and enhancing the overall lifespan of the circuit breaker. The ZN28-12 series indoor high-voltage vacuum circuit breaker is a reliable and efficient solution for various electrical systems. With its advanced features and superior performance, it plays a vital role in maintaining the stability and safety of power distribution networks. Trust in the ZN28-12 series to deliver exceptional results for your electrical needs.

The LZW8-10 Dedicated Circuit Breaker Zero Sequence Current Transformer is designed to transform the high current on the primary side into a uniform standard 5A or 1A current. This current is then used as the standard input current for measurement, metering instruments, and relay protection devices. Selecting the correct current transformer is crucial as it involves ensuring the accuracy of measurement and metering instruments, as well as the proper operation of relay protection devices. When selecting a current transformer, several factors need to be considered. Firstly, the type of current transformer must be chosen based on the desired measurement and protection objectives. The primary and secondary rated current ratios need to be carefully selected in order to achieve accurate measurement and protection requirements. The selection of the appropriate accuracy class for measurement and protection groups is also essential. Additionally, the rated capacity and the selection of the large output impedance are important considerations. The LZW8-10 Dedicated Circuit Breaker Zero Sequence Current Transformer provides a reliable solution for accurate current transformation and standard input current supply. By converting the high current on the primary side to a standardized current, it serves as the basis for precise measurement, metering, and relay protection functions. This current transformer offers the necessary flexibility and accuracy required for a wide range of applications in the electrical industry. In conclusion, the LZW8-10 Dedicated Circuit Breaker Zero Sequence Current Transformer is a purpose-built current transformer that plays a crucial role in transforming high currents into standardized input currents for measurement, metering instruments, and relay protection devices. Careful consideration of the type, primary and secondary rated currents, accuracy class, rated capacity, and output impedance selection ensures accurate measurement and reliable performance. With its advanced features and reliable performance, the LZW8-10 current transformer is an ideal choice for various electrical applications. It offers the necessary accuracy and reliability required in the demanding field of current transformation and protection.