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As a professional manufacturer with ISO9001 certified quality management, Jinhua Dika Electrical Equipment Co., Ltd. specializes in delivering reliable high-voltage switching solutions for global power infrastructure. Our SF6 Gas Insulated Outdoor Circuit Breaker, designed in strict compliance with the IEC 62271-100 standard, represents a cornerstone product for utilities and industrial clients seeking durability, safety, and performance in demanding outdoor environments. Engineered for seamless integration into transmission and distribution networks worldwide, this circuit breaker ensures the protection and stability of electrical systems.
The core of this product lies in its advanced SF6 gas insulation technology. Sulfur hexafluoride (SF6) is renowned for its exceptional dielectric strength and arc-quenching properties, which allow for a more compact breaker design compared to air-insulated alternatives while maintaining high interrupting capabilities. This design is particularly advantageous for outdoor installations where space, environmental resilience, and maintenance intervals are critical considerations.
Key Product Features & Technical Advantages:
- Superior Dielectric Performance: The SF6 gas insulation provides a stable and reliable insulating medium, capable of withstanding high overvoltages and ensuring clearances are maintained even under adverse weather conditions.
- Excellent Arc Interruption: The rapid recombination properties of SF6 gas enable efficient and effective extinction of the power arc during circuit breaking, minimizing contact erosion and extending the operational life of the contacts.
- Compact & Robust Outdoor Design: The housing is constructed from high-grade, corrosion-resistant materials suitable for outdoor exposure, reducing the overall footprint required in substation layouts.
- Low Maintenance Requirements: The sealed, pressurized gas system is highly stable, leading to long service intervals and reduced lifetime operational costs.
- High Operational Reliability: Featuring a reliable operating mechanism (spring or hydraulic drive options), the breaker ensures consistent and fast switching operations for both manual and remote/SCADA-controlled scenarios.
- Flexible Configuration: We offer customization on key parameters to match specific grid requirements, including rated voltage, current, and breaking capacity.
Technical Specifications Overview:
| Parameter | Typical Range / Description |
| Standard Compliance | IEC 62271-100 |
| Rated Voltage (Ur) | 72.5 kV, 145 kV, 245 kV (Customizable) |
| Rated Normal Current (Ir) | 1250 A, 2000 A, 3150 A (Available upon request) |
| Rated Short-Circuit Breaking Current (Ik) | 25 kA, 31.5 kA, 40 kA (Customizable) |
| Insulation Medium | SF6 Gas |
| Operating Mechanism | Spring Operated or Hydraulic (Optional) |
| Control Voltage | DC 110V/220V or AC 220V/380V |
| Mechanical Endurance | ≥ 5000 operations |
Benefits for Your Operations:
- Enhanced Grid Safety: Provides reliable fault isolation, protecting expensive downstream equipment and ensuring personnel safety.
- Reduced Substation Footprint: The gas-insulated design allows for a more compact installation, saving valuable space in substation design and potentially lowering civil works costs.
- Lower Total Cost of Ownership: Long maintenance cycles and high durability translate into reduced operational and maintenance expenditures over the product's lifecycle.
- Global Compatibility: Compliance with the internationally recognized IEC 62271-100 standard facilitates approval and integration into power networks across different regions.
- Adaptability: Customizable specifications ensure the breaker meets the precise voltage, current, and protection requirements of your specific project.
Frequently Asked Questions (FAQ):
-
Q: What are the primary advantages of SF6 gas insulation over other types?
A: SF6 gas offers a much higher dielectric strength than air or oil, allowing for significantly more compact breaker designs. It also possesses superior arc-quenching properties, leading to faster arc extinction, less contact wear, and longer service life. -
Q: Is this circuit breaker suitable for very cold or hot climates?
A: Yes. The design and SF6 gas pressure/temperature characteristics are engineered to perform reliably across a wide ambient temperature range, making it suitable for diverse geographical locations. -
Q: How often does the SF6 gas need to be checked or replenished?
A: The system is designed as a sealed, low-leakage unit. Under normal operating conditions, the gas quality and pressure remain stable for extended periods, typically requiring only periodic monitoring as per maintenance schedules, not frequent replenishment. -
Q: Can this breaker be integrated with existing SCADA or protection relay systems?
A: Absolutely. It comes with standard auxiliary contacts and can be equipped with various interface options to seamlessly connect with modern supervisory control, protection, and automation systems. -
Q: What is the typical delivery lead time for a customized order?
A: Lead time depends on the specific customization and order quantity. As a manufacturer with streamlined processes, we provide competitive lead times. Please contact us with your requirements for a precise schedule. -
Q: Do you provide installation supervision and commissioning support?
A: Technical documentation, installation manuals, and commissioning guidelines are provided. On-site supervision and support services are available as an optional extra to ensure correct installation and operation. -
Q: Are spare parts readily available?
A: Yes. Being the manufacturer, we maintain an inventory of critical spare parts and can supply them promptly to minimize downtime for our customers. -
Q: What makes your product compliant with IEC 62271-100?
A> Our design, manufacturing processes, and type testing are conducted according to the requirements set forth in the IEC 62271-100 standard for high-voltage alternating current circuit breakers, covering dielectric, mechanical, thermal, and short-circuit performance.
Backed by our ISO9001 certification, which underscores our commitment to consistent quality control, Jinhua Dika Electrical has successfully supplied electrical equipment to a broad spectrum of markets including North America, Europe, Southeast Asia, and Africa. With an annual export value reflecting strong international trust and multiple shipment ports like Shanghai and Ningbo ensuring logistical flexibility, we are positioned as a reliable partner for your high-voltage switching needs. Our SF6 Gas Insulated Outdoor Circuit Breaker combines proven technology with manufacturing expertise to deliver a product that enhances grid reliability and efficiency. Contact us today to discuss your project specifications and receive a tailored solution.
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