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Vacuum Circuit Breaker

A vacuum circuit breaker (VCB) is a type of circuit breaker that uses vacuum as the medium for arc suppression during circuit interruption. It is designed to protect electrical distribution systems from overloads and short circuits by interrupting the flow of current.

The main advantage of a vacuum circuit breaker is its ability to provide reliable and efficient circuit interruption. By using a vacuum as the arc quenching medium, it eliminates the need for traditional arc-extinguishing materials such as oil or gas. This not only increases the safety of the circuit breaker but also reduces its maintenance and operational requirements.

VCBs are commonly used in medium to high-voltage applications, such as power generation plants, electrical substations, industrial plants, and commercial buildings. They are particularly suitable for environments with stringent safety and reliability requirements, as they offer excellent performance in terms of fault interruption, insulation, and dielectric strength.

Key features of vacuum circuit breakers include high breaking capacity, fast recovery time, low maintenance requirements, and compact design. They are also capable of operating in harsh conditions, such as high altitudes, high temperatures, and high moisture levels.

In summary, a vacuum circuit breaker is a reliable and efficient device used for interrupting electrical circuits. It provides superior arc suppression capabilities, enhances overall system safety, and requires minimal maintenance. Due to these advantages, vacuum circuit breakers are widely used in various industries and applications.

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High Voltage Vacuum Circuit Breaker with Isolation Knife

High Voltage Vacuum Circuit Breaker with Isolation Knife

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 wit......

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Vacuum circuit breaker with Electromagnetic Operating Mechanism

Vacuum circuit breaker with Electromagnetic Operating Mechanism

The ZW7-40.5 series outdoor high voltage power station vacuum circuit breaker is a three-phase AC 50Hz outdoor high voltage switch device. It is designed for control and protection in 35kV transmission systems and can also be used in applications such as contactors and capacitor bank switching. This vacuum circuit breaker is primarily used for control and protection in outdoor 35kV power transmission and transformation systems. It is also suitable for normal operation and short-circuit protection in urban and rural distribution networks and industrial and mining enterprises. The overall structure of this product is a porcelain bottle pillar type, with a vacuum arc extinguishing system inside the upper porcelain bottle and a pillar porcelain bottle at the bottom. It is suitable for frequen......

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Series outdoor high voltage vacuum circuit breaker

Series outdoor high voltage vacuum circuit breaker

The ZW8 Series Outdoor High Voltage Vacuum Circuit Breaker is a cutting-edge outdoor high voltage switch device with a rated voltage of 12KV. Specifically designed for power distribution systems in urban and rural networks, this circuit breaker serves the purpose of carrying, disconnecting, and reconnecting load currents, overload currents, and short-circuit currents. It is an ideal product for achieving oil-free operation, replacing traditional oil-immersed circuit breakers. The exterior insulation of the ZW8-12 vacuum circuit breaker is made of reliable silicone rubber material, which possesses excellent insulation performance and strong anti-pollution capabilities. Equipped with a spring-stored energy operating mechanism, the ZW8-12 vacuum circuit breaker supports manual, motorized, and......

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Outdoor Column Intelligent Vacuum Electrical Circuit Breaker

Outdoor Column Intelligent Vacuum Electrical Circuit Breaker

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 ......

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630A SF6 outdoor 3 pole mounted vaccum circuit breaker

630A SF6 outdoor 3 pole mounted vaccum circuit breaker

The LW3-12 SF6 outdoor 3 pole mounted vacuum circuit breaker is a new generation product developed by our company in accordance with the new requirements of the State Grid Corporation of China for the integration of primary and secondary systems. The switch configuration fully complies with the requirements of the State Grid for the integration of primary and secondary systems. With its compact design structure, rational layout, and comprehensive functionality, this circuit breaker meets all the specified criteria for the integration of primary and secondary systems by the State Grid. One of the key features of this circuit breaker is its use of unified-parameter protection current transformers (CT), zero-sequence current transformers (ZCT), and zero-sequence voltage sensors. These compon......

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2KV 24KV outdoor high voltage vacuum circuit breaker with disconnector

2KV 24KV outdoor high voltage vacuum circuit breaker with disconnector

The ZW32-12 outdoor high voltage vacuum circuit breaker with disconnector is a state-of-the-art electrical equipment specifically designed for outdoor high voltage distribution systems with a rated voltage of 12kV and three-phase AC 50Hz. It is primarily used for the interruption and closure of current loads, overload currents, and short circuit currents in power systems. It finds extensive application in substations, industrial and mining enterprises' power distribution systems for protection and control purposes, as well as in urban and rural electrification projects, where frequent operations are required. The ZW32 vacuum circuit breaker is equipped with a spring-stored energy operating mechanism, allowing for manual, electric, and remote tripping and closing operations. Additionally, ......

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35KV high voltage SF6 gas outdoor vacuum circuit breaker

35KV high voltage SF6 gas outdoor vacuum circuit breaker

The LW8-40.5kV High Voltage SF6 Gas Outdoor Vacuum Circuit Breaker is a state-of-the-art electrical equipment designed for outdoor high voltage applications. Operating at a frequency of 50Hz, this circuit breaker utilizes SF6 gas as the arc extinguishing medium. It is specifically suitable for controlling and protecting power distribution systems with a rated voltage of 35kV. Moreover, it can be utilized in contactor and capacitor bank switching applications. The inclusion of a current transformer allows for measurement and protection capabilities. Adhering to both national and international standards, the LW8-40.5kV High Voltage SF6 Gas Outdoor Vacuum Circuit Breaker reflects excellence in its design and functionality. It complies with the requirements outlined in GB 1984-1989 "AC High V......

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Operating Mechanism solid insulation ring net cabinet movement

Operating Mechanism solid insulation ring net cabinet movement

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 Breaker......

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China Vacuum Circuit Breaker is one kind of products from RZMV factory. As one of leading manufacturers and suppliers in China, we provide durable products. We can sell them at a low price and can be customized. We sincerely look forward to becoming your reliable long-term business partner!