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Help CenterTank-Type SF6 Circuit Breaker for Heavy-Duty Industrial Plant Power Distribution
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As a professional manufacturer with ISO9001 certified quality management, Jinhua Dika Electrical Equipment Co., Ltd. specializes in delivering robust and reliable high-voltage switching solutions. Our Tank-Type SF6 Circuit Breaker is engineered specifically for the demanding environment of heavy-duty industrial plant power distribution. It provides a critical layer of protection for your electrical infrastructure, ensuring operational continuity, personnel safety, and equipment longevity. With an annual export value reflecting our global reach and trust from clients across continents, we bring proven technology and manufacturing expertise directly to your project.
This circuit breaker is designed to interrupt high fault currents swiftly and reliably, isolating faulty sections of the grid to prevent widespread damage. Its tank-type construction offers superior mechanical strength and environmental sealing, making it an ideal choice for outdoor installations in industrial complexes, steel plants, chemical processing facilities, and large manufacturing units.
Core Features & Technical Advantages:
- Superior Arc Quenching: Utilizes Sulfur Hexafluoride (SF6) gas, known for its excellent dielectric and arc-quenching properties, enabling fast and clean interruption even under the most severe short-circuit conditions.
- Robust Tank Design: The welded steel tank provides a hermetically sealed environment for the SF6 gas and internal components, protecting against moisture, dust, and corrosive industrial atmospheres.
- High Reliability & Long Life: With a minimal number of moving parts and a sealed-for-life gas system (in certain models), the breaker requires minimal maintenance, offering a long service life exceeding 25 years.
- Adaptable Operating Mechanisms: Available with either spring-operated or hydraulic mechanisms to suit specific control house preferences and auxiliary power availability.
- Advanced Monitoring Options: Can be integrated with microprocessor-based protection relays and monitoring devices for real-time status, gas density, contact wear, and operation count, facilitating predictive maintenance.
- Designed for Safety: Features safe and accessible earthing switches, clear visible break indicators, and pressurized gas handling procedures in compliance with international safety standards.
Key Technical Specifications:
The following table outlines typical customizable parameters. Exact specifications are finalized based on your system study and requirements.
| Parameter | Typical Range / Description |
| Rated Voltage (Ur) | 72.5 kV, 145 kV, 170 kV, 245 kV (Customizable) |
| Rated Normal Current (Ir) | 2000A, 2500A, 3150A, 4000A |
| Rated Short-Circuit Breaking Current (Isc) | 31.5 kA, 40 kA, 50 kA, 63 kA |
| Rated Frequency | 50 Hz / 60 Hz |
| SF6 Gas Pressure (at 20°C) | Typically 0.5 MPa (abs) - 0.7 MPa (abs) |
| Mechanical Endurance (Operations) | 10,000 (O-CO cycles) |
| Standards | IEC 62271-100, ANSI C37.04, GB/T 1984 |
Benefits for Your Heavy-Duty Industrial Operation:
- Maximized Uptime: Rapid and reliable fault clearing minimizes downtime during electrical faults, keeping your production lines running and reducing costly interruptions.
- Reduced Operational Risk: Protects expensive transformers, motors, and cables from damage due to sustained fault currents, lowering the risk of catastrophic failure.
- Lower Total Cost of Ownership: The long maintenance intervals and durable design translate into lower lifecycle costs compared to more frequent maintenance cycles of alternative technologies.
- System Stability: Enhances the overall stability and security of your plant's internal power distribution network.
- Scalability: Our breakers can be customized to match your plant's expanding power needs, providing a future-proof solution.
Trust in a product backed by a manufacturer with a solid track record. Jinhua Dika Electrical Equipment serves a diverse global market, from North America and Western Europe to Southeast Asia and Africa, demonstrating the universal applicability and reliability of our products. Our ISO9001 certification is a testament to our commitment to consistent quality in every unit we produce. Supported by a dedicated team and efficient logistics from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, we ensure your critical equipment arrives on schedule. For a power distribution system that demands unwavering reliability, choose our Tank-Type SF6 Circuit Breaker. Contact us today to discuss your specific voltage, current, and configuration requirements, and let us provide you with a detailed technical proposal.
Frequently Asked Questions (FAQ)
Q1: What are the primary advantages of an SF6 gas circuit breaker over a vacuum circuit breaker for high-voltage industrial applications?
A1: SF6 breakers generally offer higher breaking capacity and better performance for very high short-circuit currents commonly found in heavy-duty plants. The tank-type design also provides excellent environmental sealing for harsh outdoor conditions.
Q2: How often does the SF6 gas need to be checked or replenished?
A2: Modern, well-sealed tank-type breakers have very low gas leakage rates. Typically, gas density is monitored, and maintenance intervals for checking pressure can be several years, significantly reducing routine upkeep.
Q3: Is special training required for the operation and maintenance of this breaker?
A3: While basic operation can be integrated into standard plant procedures, specific training on SF6 gas handling, safety protocols, and internal maintenance is recommended and can be provided.
Q4: Can this breaker be integrated with our existing SCADA or plant monitoring system?
A4: Yes. The breaker can be equipped with auxiliary contacts, motor operation indicators, and gas density signals that are compatible with standard SCADA interfaces for remote monitoring and control.
Q5: What is the typical delivery lead time for a custom-configured unit?
A5: Lead times vary based on specifications and order volume. Generally, it ranges from 12 to 20 weeks from order confirmation to shipment. We provide accurate timelines upon finalizing the technical details.
Q6: Do you provide installation supervision and commissioning support?
A6: Yes, we can arrange for experienced engineers to provide technical guidance during installation and commissioning, either on-site or remotely, to ensure proper setup and operation.
Q7: Are spare parts readily available?
A7: As the manufacturer, we maintain an inventory of critical spare parts like contacts, seals, and operating mechanism components, ensuring support throughout the long lifecycle of the product.
Q8: What environmental considerations are associated with SF6 gas?
A8: SF6 is a potent greenhouse gas. Our breakers are designed for maximum sealing integrity to prevent leakage. We also adhere to responsible handling and recovery procedures. Alternatives or gas mixtures can be discussed based on specific regulations.
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