China 12KV fuse combination load break switch Manufacturers, Suppliers, Factory

The ZN85-40.5 KV indoor high voltage vacuum circuit breaker is a switch device used for interrupting high voltage electrical circuits in terms of working current and fault current. It features an integrated and modular design with a simple and reasonable overall structure. The breaker is arranged in an upper and lower configuration, with the arc-extinguishing compartment located on top and the interlocking and operating mechanisms below. The device utilizes the specialized 3AV3 spring operating mechanism, which does not require adjustment and ensures stable and reliable operation. The vacuum arc-extinguishing compartment is enclosed within an insulated cylinder, thereby enhancing insulation performance and reducing overall dimensions. This series of ZN85-40.5 KV circuit breakers is suitable for indoor installation in devices rated at 40.5 KV and 50 Hz. It is equipped with the dedicated 3AV3 spring mechanism. The breaker can be installed in the JYN1-40.5(Z) removable metal-enclosed switchgear or the KYN61-40.5(Z) assembled metal-enclosed switchgear. It is considered the ideal circuit breaker for 40.5 KV installations. This series of products boasts high technical parameters, strong breaking capacity, reliable operation, stable performance, long service life, and easy maintenance. Furthermore, it is safe and free from explosion risks or pollution. It is widely used for protection and control of single busbar electrical facilities in industrial and mining enterprises, power plants, and substations. It is also suitable for frequent operations and special scenarios such as the switching of complete capacitor banks. The ZN85-40.5 KV indoor high voltage vacuum circuit breaker combines advanced design, excellent performance, and reliability to meet the demanding requirements of high voltage electrical circuit operations.

Adopting prefabricated live and touchable silicone rubber cable heads, fully sealed, fully insulated, maintenance free, and reliable to ensure personal safety: compact structure, small and beautiful appearance, stainless steel double layer box, with a service life of over 20 years; Without affecting the operation of the main network. Implement regional power outage maintenance and reduce the scope of power outages; It can be equipped with one or more SF6 load switches. Flexible and diverse wiring methods, with up to eight branch outlets; Optional lightning arrester, short circuit fault indicator, current limiting fuse, etc., to meet various user requirements.

The FZRN25-12 type AC high-voltage vacuum load switch-fuse combination electrical appliance is an indoor device with a rated voltage of 12KV and suitable for three-phase AC 50Hz. It is designed for use in industrial and mining sectors, enterprises, distribution substations, and power stations, serving the purposes of load control and short circuit protection. The equipped grounding switch is capable of withstanding short circuit current. The operating mechanism can be manual or electric, facilitating the fulfillment of three-remote control requirements in the power system. The FZRN25-12 type load switch and combination electrical appliance are suitable for load control and short circuit protection in municipal distribution substations and industrial power equipment supplied by three-phase ring networks or terminal power. Being more reliable and cost-effective in providing protection to transformers and other electrical equipment compared to circuit breakers, they are particularly suitable for ring networks, dual radiation power supply units, and compact substations.

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.

The DFW-12/630A cable branch box is built to withstand demanding industrial environments. Its sturdy construction, made from high-quality stainless steel plate, ensures durability and long-lasting performance. The material's resistance to corrosion and impact makes it an ideal choice for installations in various settings. This cable branch box is designed to handle a rated current of 630A, making it suitable for high-power applications. With a rated voltage of 12KV, it provides reliable and efficient power distribution across different electrical systems. The product is compliant with international standards, including ISO, CCC, and IEC certificates, ensuring its quality and conformity to industry requirements. To ensure the safety of electrical systems, the DFW-12/630A cable branch box offers IP33 protection level. This protection degree guards against the infiltration of solid objects larger than 2.5mm and provides protection against water spray from any direction. This feature guarantees the longevity and performance of the cable branch box under various conditions. Flexibility is another advantage of our DFW-12/630A cable branch box. It is available in a standard green color but can be customized to meet specific preferences or match existing infrastructure. Furthermore, we offer OEM services, allowing customers to personalize the product according to their branding or design requirements. The DFW-12/630A cable branch box operates at a frequency of 50/60Hz, making it suitable for use in different global regions. Its adaptability to varying power systems ensures its compatibility and reliability in diverse electrical setups. Whether you require a single piece or a larger quantity, we offer a low minimum order quantity (MOQ) of just 1 piece, making it convenient for customers with different project sizes or budgets. Our commitment to customer satisfaction extends to offering flexible options that suit your specific needs. In summary, the DFW-12/630A cable branch box is a high-quality product designed for reliable and efficient power distribution. With its stainless steel plate construction, rated current of 630A, and rated voltage of 12KV, this cable branch box is suitable for demanding industrial applications. The IP33 protection level ensures its durability and resistance to external elements. Customization options, OEM services, and a low MOQ offer flexibility and convenience to our valued customers. Choose our DFW-12/630A cable branch box for reliable and efficient electrical power distribution solutions.

the GN19 Indoor Medium High Voltage Disconnect Switch is a reliable and efficient solution for power distribution in both medium and high voltage systems. With its robust design, advanced safety features, ease of installation and operation, as well as high-performance capabilities, this switch offers a comprehensive solution for controlling and isolating electrical circuits. Whether for medium or high voltage applications, the GN19 switch ensures safe and uninterrupted power supply, making it an ideal choice for various industries and sectors.