1. Overview

2. Technical Parameters

• Rated Voltage: Approximately 38 kV (or 33 kV, subject to actual application scenarios)
• Rated Current: 1000 A – 2000 A, varying with specific configuration and customization
• Breaking Capacity: 10 kA – 30 kA, fully meeting the short-circuit fault handling requirements of power grids
• Operating Frequency: 50 Hz / 60 Hz, compatible with global mainstream power grid standards
• Structure Type: Circuit breaker integrated with vacuum interrupter

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3. Product Features

• Advanced Vacuum Interruption Technology: Leveraging the superior electrical insulation and arc-quenching properties of a high-vacuum environment, it achieves fast, flameless arc extinction. This technology endows the product with a long service life and minimal maintenance requirements, outperforming traditional switchgear.
• Modular Design: All core components adopt standardized and modular design, enabling on-site rapid assembly, disassembly and replacement. This design effectively reduces equipment downtime caused by faults and lowers later operation and maintenance costs.
• High Operational Reliability: The vacuum interrupter features excellent sealing performance, with strong resistance to external environmental interferences. It can adapt to harsh climatic conditions and demanding industrial working environments, ensuring stable and uninterrupted operation.
• Enhanced Safety Performance: Equipped with multiple mechanical and electrical safety interlock mechanisms, it strictly complies with industrial safety operation standards, effectively protecting the personal safety of on-site operators and maintenance personnel.

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4. Structure and Components

• Vacuum Interrupter: The core component of the equipment, featuring a high-vacuum internal environment, responsible for rapidly extinguishing the electric arc at the moment of circuit breaking to ensure safe disconnection.
• Operating Mechanism: Consists of opening mechanism, reset mechanism and other auxiliary structures, generally adopting a combined design of spring reset and electromagnetic operation for stable and sensitive action.
• Busbar Support: Used for connecting with power grid busbars, providing stable mechanical support for the main circuit and ensuring reliable electrical connection.
• Grounding Coil: Provides a safe grounding path when the circuit is disconnected, preventing high potential drift and eliminating potential electrical hazards.
• Enclosure and Protective Devices: Offers comprehensive physical protection for internal components, with effective dustproof and waterproof performance to adapt to complex on-site environments.

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5. Application Fields

• Power Plants: Applied to busbar sectionalization, generator grid connection and disconnection for generator units.
• Substations: Used for busbar sectionalization, line connection, load switching and fast fault isolation in power transformation systems.
• Industrial Power Distribution: Serves as the main power distribution equipment in large-scale petrochemical, metallurgical and other heavy industrial power systems.
• Power Networks: Improves the automation level and operational safety of distribution networks, optimizing power supply reliability.

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6. Installation and Maintenance

Installation

Commissioning

Maintenance

• Regular Inspections: Routinely check the lubrication status of the operating mechanism and the sealing performance of the vacuum interrupter to eliminate potential faults in advance.
• Component Replacement: The vacuum interrupter needs to be replaced after reaching the rated number of breaking operations; it boasts a longer service life compared with traditional SF6 circuit breakers, reducing replacement frequency.
• Insulation Monitoring: Regularly monitor insulation resistance values and grounding current data, detect insulation degradation in a timely manner, and prevent grounding faults and related electrical accidents.