China LV withdrawable model switchgear Manufacturers, Suppliers, Factory

The GN30-12 (D) type rotary indoor high-voltage disconnect switch is a newly designed isolation switch with a rotary knife mechanism. Its main structure consists of two sets of insulators and contacts fixed on the two planes of a three-phase chassis. By utilizing the rotary contact, the switch can be easily turned on and off. The GN30-12 (D) type switch is an upgraded version that includes a grounding knife on the basis of the GN30-12 type switch, making it suitable for various power systems. Its compact design ensures minimal space occupation, while also offering excellent insulation capabilities. Installation and adjustment are hassle-free. This product meets the requirements of GB1985-89 "AC high voltage isolating switch and the grounding switch" standards. It is suitable for indoor power systems with a rated voltage of 10kV AC and below, operating at a frequency of 50Hz. The switch is specifically designed for opening and closing circuits under voltage conditions without load. It can be used with a high voltage switch cabinet or as a standalone device

The GZD(W) DC220KV DC110KV DC48KV microcomputer control direct current power supply cabinet is a cutting-edge and highly efficient solution for various industries that require a reliable power supply. This power supply cabinet is designed to deliver stable direct current (DC) to support critical applications in fields such as telecommunications, power transmission, and industrial automation. Equipped with advanced microcomputer control technology, this power supply cabinet offers precise output voltage regulation and robust overload protection. It ensures the safe and efficient operation of connected equipment while minimizing the risk of power fluctuations and damage due to voltage surges. The microcomputer control system continuously monitors and adjusts the output voltage, ensuring a stable power supply under varying load conditions. With a voltage output capacity of DC220KV, DC110KV, and DC48KV, this power supply cabinet caters to a wide range of operational requirements. It can provide reliable power to large-scale infrastructure projects, high-voltage transmission systems, and high-power applications. The cabinet's high voltage capacity makes it suitable for demanding environments where uninterrupted power supply is crucial. The GZD(W) DC220KV DC110KV DC48KV microcomputer control direct current power supply cabinet is designed for ease of installation, operation, and maintenance. It features a compact design, making it space-saving and perfectly suited for both indoor and outdoor installation. The cabinet also incorporates multiple safety measures, such as short circuit protection and overvoltage protection, ensuring the safety of the connected equipment. In addition to its exceptional performance and reliability, this power supply cabinet offers energy-saving benefits. It features high-efficiency power conversion technology that minimizes energy loss during operation, reducing overall power consumption and environmental impact. In summary, the GZD(W) DC220KV DC110KV DC48KV microcomputer control direct current power supply cabinet is a technologically advanced and versatile solution for industries that rely on dependable power supply. With its precise control, high voltage capacity, and energy-saving features, this power supply cabinet ensures uninterrupted operation of critical equipment while maximizing efficiency and reducing environmental impact.

The SV-12 Indoor High Voltage AC Vacuum Circuit Breaker is designed for use in power systems with a rated voltage of 12kV and operates at a frequency of 50Hz. It finds widespread applications in substations, power plants, industrial and mining enterprises, as well as airports and commercial buildings, where it plays a crucial role in controlling and protecting electrical facilities. With its ability to handle frequent operations and fast reclosing, the SV-12 Circuit Breaker offers unmatched performance. Compliance with national standards and international regulations underscores the quality of the SV-12 Indoor High Voltage AC Vacuum Circuit Breaker. It meets the requirements specified in GB 1984-2014 "High-Voltage AC Circuit Breakers," JB/T3855-2008 "High-Voltage AC Vacuum Circuit Breakers," and DL/T 403-2000 "Technical Requirements for Ordering 12kV to 40.5kV Indoor AC High-Voltage Vacuum Circuit Breakers." Additionally, it conforms to relevant provisions from the International Electrotechnical Commission standards, including IEC 62271-100, IEC 60694, and IEC 62271-1. The standout feature of the SV-12 Indoor High Voltage AC Vacuum Circuit Breaker is its solid insulation ring net cabinet movement. This innovative operating mechanism ensures reliable performance and facilitates convenient maintenance. The use of solid insulation material enhances the breaker's insulation capabilities, promoting the overall safety of the electrical system. Furthermore, the ring net cabinet movement enables smooth and efficient switching of electrical circuits. With its 12kV rated voltage, the SV-12 Circuit Breaker is perfectly suited for high voltage applications. Its extensive usage across various industries and facilities is a testament to its exceptional reliability and performance. The SV-12 Indoor High Voltage AC Vacuum Circuit Breaker provides steadfast control and protection of electrical infrastructure. In conclusion, the SV-12 Indoor High Voltage AC Vacuum Circuit Breaker is an advanced product featuring a solid insulation ring net cabinet movement. Its compliance with national and international standards confirms its superior quality and adherence to stringent regulations. Specifically designed for 12kV power systems, this circuit breaker guarantees reliable performance and efficient control and protection of electrical facilities. Its cutting-edge technology and unrivaled performance make it the ideal choice for a wide range of applications.

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.

12kV Indoor High Voltage Vacuum Circuit Breaker with Isolator in Gas Insulated Switchgear (GIS) The 12kV Indoor High Voltage Vacuum Circuit Breaker with Isolator is a vital component in Gas Insulated Switchgear (GIS). Designed for indoor use, this product offers reliable and efficient operation in high voltage applications. The GIS is comprised of various components, including a circuit breaker, isolator, grounding switch, current transformer, surge arrester, busbar, connectors, and outgoing terminals. All of these devices or parts are enclosed within a metal-grounded housing. The housing is filled with SF6 insulation gas, which is pressurized to ensure optimal performance. This characteristic has earned it the nickname "SF6 Fully Enclosed Combined Electrical Device." The 12kV Indoor High Voltage Vacuum Circuit Breaker plays a critical role in the GIS system. It is responsible for interrupting and isolating electrical circuits under fault conditions. Equipped with vacuum interrupter technology, this circuit breaker offers excellent arc quenching capability and enhanced reliability. Furthermore, the Isolator in this GIS system provides a means to isolate individual components or sections for maintenance or repair without disrupting the entire system. This feature ensures flexibility and convenience during installation and maintenance activities. Operating at a voltage level of 12kV, this GIS product is suitable for various indoor applications where high voltage switching is required. It offers excellent performance, reliability, and safety. In summary, the 12kV Indoor High Voltage Vacuum Circuit Breaker with Isolator is a key component of Gas Insulated Switchgear. Its integration within the GIS system allows for efficient electrical switching operations in high voltage applications. With advanced technologies and a fully enclosed design, this product guarantees reliable performance and utmost safety.

It can be processed according to the drawings and samples, receive oem orders, accept wholesale and customization. Provide a complete set of motor protection system solutions. Apply Motor power：5000～10000KW，Diameter Size（mm）：10600×2480×1500 or Customized