China Industrial Vacuum Circuit Breaker Manufacturers, Suppliers, Factory

The ZW20-12 outdoor column intelligent vacuum electrical circuit breaker is a cutting-edge product designed to meet the demands of modern power distribution systems. With its reliable fault detection, protection control, and communication capabilities, this circuit breaker ensures the efficient and safe operation of power networks. Equipped with advanced features, such as precise detection of milliamp-level zero-sequence current and phase-to-phase short-circuit fault currents within and outside the range, it provides automatic disconnection for single-phase ground faults and phase-to-phase short-circuits. Key Features: Fault Detection Function: The ZW20-12 circuit breaker is equipped with a fault detection function, which allows for the reliable identification and diagnosis of faults in the power distribution system. This feature enables prompt action to be taken to restore power and minimize downtime. Protection Control Function: The circuit breaker incorporates a comprehensive protection control function, which ensures the safety and integrity of the power distribution network. It effectively responds to abnormal conditions, such as overcurrent, overvoltage, and short-circuit faults, protecting the network from damage and preventing potential hazards. Communication Function: With its communication capabilities, the ZW20-12 circuit breaker enables seamless integration into the power distribution automation system. It supports various communication protocols, facilitating real-time monitoring, data collection, and control of the circuit breaker's operation. This function enhances the efficiency and reliability of the power distribution system. Milliamp-Level Zero-Sequence Current Detection: The circuit breaker is capable of accurately detecting milliamp-level zero-sequence currents, both within and outside the specified range. This feature allows for the identification and isolation of single-phase ground faults, ensuring continuous power supply and preventing further damage to the system. Phase-to-Phase Short-Circuit Fault Current Detection: The ZW20-12 circuit breaker efficiently detects phase-to-phase short-circuit fault currents, providing immediate disconnection to isolate the fault and protect the power distribution system. The rapid response and precise detection capability minimize the impact of short-circuit faults on the network. In conclusion, the ZW20-12 outdoor column intelligent vacuum electrical circuit breaker incorporates advanced functionalities, including fault detection, protection control, and communication capabilities. With its precise detection of milliamp-level zero-sequence currents and phase-to-phase short-circuit fault currents, it enables automatic disconnection of single-phase ground faults and phase-to-phase short circuits. This circuit breaker ensures the safety, reliability, and efficient operation of power distribution systems, contributing to uninterrupted power supply and minimizing downtime in the event of faults.

XL-21 floor-type low voltage power distribution switchgear: As a power supply system with AC 50Hz-60Hz, rated working voltage 380-400V, rated working current up to 630A, and breaking capacity up to 15kA, It provides power conversion, distribution and control for power distribution equipment such as power, lighting and fans. Can provide overload, short circuit and leakage protection. It  contain 2 Two installation structure :Indoor box structure (protection grade IP30),Outdoor box structure (protection grade IP65).Easy to install, economical and practical It is suitable for power users such as power plants, substations, industrial and mining enterprises, and highway tunnels.

LZC-12 Electronic Current Transformer - A Versatile Solution for High Voltage Switchgear Applications The LZC-12 Electronic Current Transformer is a cutting-edge device specially designed for high voltage switchgear applications up to 12kV and below. It seamlessly integrates with electronic instruments and microcomputer measurement and protection equipment, offering a comprehensive range of functionalities, including measurement, control, protection, and data transmission. Constructed with high-quality copper materials, the LZC-12 ensures superior performance and reliable current monitoring in AC circuits. Its primary objective is to accurately measure the current flowing through the primary coil and provide proportional voltage output through its secondary coil. One remarkable feature of the LZC-12 is its ability to maintain a safe operating condition, even in the event of a secondary open circuit. Unlike conventional current transformers, the LZC-12 eliminates the risk of generating high voltages when the secondary circuit is open. This guaranteed safety measure ensures the protection of both personnel and equipment, enhancing the overall security of the switchgear system. The LZC-12 is engineered to facilitate coordination among various components within the power system. When used in conjunction with electronic instruments, it offers precise current measurement, ensuring reliable data for load analysis and management. Additionally, its seamless integration with microcomputer measurement and protection equipment enables advanced control and protection functionalities, allowing for rapid detection and response to abnormal currents or faults. Furthermore, the LZC-12 facilitates seamless data transmission, enabling efficient communication between multiple devices in the power system. This feature is particularly beneficial for remote monitoring and centralized data acquisition, enhancing the productivity and ease of operation in power system management. In summary, the LZC-12 Electronic Current Transformer is a versatile and indispensable solution for high voltage switchgear applications. With its top-grade copper construction, it guarantees accurate current measurement and proportional voltage output. Its comprehensive range of functionalities, including measurement, control, protection, and data transmission, ensures efficient and reliable operation of the switchgear system. Choose the LZC-12 for its exceptional performance and advanced features, providing unmatched convenience and safety in high voltage applications. Trust in its reliability and versatility to meet your current monitoring needs and contribute to the overall efficiency and security of your power system.

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.

The JXM Transparent Anti-Theft City Metering Box is a state-of-the-art solution designed to protect meters in urban environments, providing both security and visibility. Constructed with imported polycarbonate engineering plastics, this metering box offers exceptional resistance to UV rays, fire, aging, corrosion, external forces, and impact, making it a durable and reliable choice. The metering box features a sleek and flawless design, free from cracks, bubbles, or imperfections on the surface. Its high transparency allows for easy meter reading and visual inspections from different angles, ensuring efficient fault detection. The compact and well-organized internal layout of the components further enhances convenience and facilitates timely maintenance. Moreover, the integrated wiring slot in the base streamlines and standardizes the wiring process. To ensure maximum security, the JXM Transparent Anti-Theft City Metering Box is equipped with a robust overall buckle. The larger models (4 meters and above) are secured with rust-resistant metal chains and sliding buckles, allowing for easy 180° opening for maintenance purposes. Additionally, the upper cover and base can be protected with a triple chain, consisting of anti-theft bolts, lead seals, and padlocks. These security measures are located in a closed space, effectively safeguarding against water damage, rust, aging, and theft. The box cover of the metering box is manufactured using transparent polycarbonate material through injection molding, while the box bottom is made of ABS engineering plastic. With a thickness of ≥ 30mm and a size deviation of not more than ± 1mm for each component, the metering box meets the technical standards such as HG2503-93 issued by the national chemical industry. In conclusion, the JXM Transparent Anti-Theft City Metering Box is an advanced solution that offers superior protection for meters in urban settings. Its durable construction, flawless design, and high transparency enhance the efficiency of meter reading and maintenance operations. With its stringent security features and compliance with industry standards, this metering box is the ideal choice for ensuring accurate measurements and preventing losses due to theft.

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.