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Home > Electrical & Electronics > Passive Components > Capacitor > High Voltage Circuit Breaker 72.5kV to 245kV, SF6 Insulation & Low Maintenance

High Voltage Circuit Breaker 72.5kV to 245kV, SF6 Insulation & Low Maintenance

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Product Spotlights

High-voltage SF6 circuit breaker for 72.5-245kV systems, featuring reliable gas insulation for superior safety and arc quenching. Engineered for low maintenance with sealed components, reducing lifecycle costs. Offers high breaking capacity, long mechanical endurance, and flexible configurations (spring/hydraulic, indoor/outdoor). Supports smart grid integration. A durable, cost-effective solution for global power transmission and distribution networks.

US$ 2000 - 5000 MOQ: 1 Piece

Key Specifications

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Application:

Other, High Voltage Power Transmission & Distribution

Rated Voltage:

72.5kV to 245kV

Insulation Medium:

SF6 Gas

Contact Supplier Request Quote Chat Now

Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Application Other, High Voltage Power Transmission & Distribution

Rated Voltage 72.5kV to 245kV

Insulation Medium SF6 Gas

Maintenance Type Low Maintenance Design

Interrupting Medium SF6 Gas

Operating Mechanism Spring or Hydraulic (Optional)

Installation Type Indoor or Outdoor (Customizable)

Control System Integrated Intelligent Control Unit

Standard IEC 62271-100, GB 1984

As a professional manufacturer with ISO9001 certification, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing reliable and efficient high-voltage solutions for the global power industry. Our High Voltage Circuit Breaker, designed for systems from 72.5kV to 245kV, represents our commitment to engineering excellence and operational reliability. Utilizing advanced SF6 gas insulation technology, this breaker is engineered for superior performance, enhanced safety, and significantly reduced maintenance requirements, making it a cost-effective and dependable choice for modern substations and power grids.

This circuit breaker is built to withstand the rigorous demands of high-voltage applications, ensuring stable power distribution and protection against faults. Its robust construction and intelligent design focus on longevity and minimal operational downtime. By choosing our product, you invest in a critical component that safeguards your electrical infrastructure while optimizing total cost of ownership.

Core Product Features & Technical Advantages:

Advanced SF6 Insulation: The breaker employs SF6 gas, known for its excellent dielectric and arc-quenching properties. This ensures reliable insulation and efficient interruption of high fault currents, enhancing the overall safety and stability of the power system.
Low Maintenance Design: Engineered for durability and long service intervals. Key components are sealed within the SF6 gas chamber, protected from environmental contaminants, which drastically reduces the need for frequent inspections and part replacements.
Wide Voltage Range Coverage: A single product family covers applications from 72.5kV to 245kV, offering flexibility and simplifying inventory management for utilities and EPC contractors operating across different voltage levels.
High Reliability & Long Electrical Life: Manufactured with high-quality materials and precision engineering, the breaker is capable of thousands of mechanical operations and numerous short-circuit interruptions over its lifespan.
Flexible Configuration Options: Available with different operating mechanisms (spring or hydraulic) and suitable for both indoor and outdoor installations, allowing for customization based on specific project requirements.
Integrated Intelligent Control: Features a modern control unit for remote monitoring, condition assessment, and seamless integration into digital substation and smart grid systems.

Key Technical Specifications:

Parameter	Specification / Value
Rated Voltage (Ur)	72.5 kV, 126 kV, 145 kV, 170 kV, 245 kV
Rated Frequency	50 Hz / 60 Hz
Rated Normal Current (Ir)	Up to 4000 A (Customizable)
Rated Short-Circuit Breaking Current (Isc)	31.5 kA, 40 kA, 50 kA (Selectable)
Rated Lightning Impulse Withstand Voltage	Up to 1050 kV (for 245kV model)
Operating Mechanism	Spring-operated or Hydraulic-operated
Mechanical Endurance	10,000 operations (minimum)

Benefits for Your Operations:

Reduced Operational Costs: The low-maintenance design directly translates to lower lifecycle costs, saving on labor, spare parts, and downtime.
Enhanced System Availability: High reliability ensures your power network remains operational, minimizing the risk of unexpected outages and associated losses.
Future-Proof Investment: Compliance with international standards like IEC 62271-100 ensures global compatibility and readiness for integration into evolving grid technologies.
Simplified Logistics & Support: With major shipment ports like Shanghai, Tianjin, Guangzhou, and Ningbo, we ensure timely and efficient delivery to markets worldwide, including North America, Europe, Southeast Asia, and beyond.

Backed by our established presence in over a dozen global markets and an annual export value reflecting consistent quality and trust, Jinhua Dika is a partner you can rely on. Our team of 11-50 dedicated professionals ensures every circuit breaker meets stringent quality controls before shipment. This product is not just a component; it's a commitment to securing your high-voltage infrastructure with a robust, efficient, and intelligently designed solution. Contact us today to discuss your specific requirements and receive a detailed proposal tailored to your project's needs.

Frequently Asked Questions (FAQ):

What is the primary advantage of using SF6 gas in this circuit breaker?
SF6 gas provides superior arc-extinguishing capability and insulation strength compared to air or oil. This allows for a more compact design, higher breaking capacity, and significantly improved safety and reliability in high-voltage interruption.
How is the "low maintenance" feature achieved?
The maintenance-free design is achieved through sealed-for-life gas compartments, high-quality contact materials resistant to erosion, and robust mechanical mechanisms. This design minimizes gas leakage and part wear, extending service intervals to several years under normal conditions.
Can this breaker be used for both 50Hz and 60Hz power systems?
Yes. The circuit breaker is designed and tested to operate reliably on both 50Hz and 60Hz electrical systems, making it suitable for a wide range of international applications.
What are the typical delivery lead times?
Standard model lead times are typically 8-12 weeks. For customized configurations or large project volumes, specific lead times can be confirmed upon request. We utilize multiple ports for efficient logistics.
Do you provide installation guidance and technical support?
Absolutely. We provide comprehensive installation manuals, drawings, and technical documentation. Remote technical support is available, and on-site supervision services can be arranged if needed.
What standards does this product comply with?
The breaker is designed and manufactured in compliance with international standards IEC 62271-100 and the Chinese national standard GB 1984 for high-voltage alternating current circuit-breakers.
Is remote monitoring and control possible?
Yes. The integrated intelligent control unit supports remote operation, status monitoring (like gas pressure, contact wear), and can provide data for condition-based maintenance strategies, facilitating integration into smart grid systems.
What is the expected service life of this circuit breaker?
With proper operation and within specified maintenance intervals, the expected service life exceeds 25 years. The mechanical endurance is rated for a minimum of 10,000 operations.