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Outdoor SF6 Ring Main Unit for Mining Power Distribution, 11kV/33kV Rated
Product Spotlights
Designed for harsh mining environments, this Outdoor SF6 Ring Main Unit offers reliable 11kV/33kV power distribution. Its sealed SF6 gas insulation ensures safety, compactness, and minimal maintenance. Features a weatherproof enclosure, flexible configurations, and supports remote monitoring. Enhances network uptime and safety while reducing total ownership costs.
US$ 159
≥1 Unit
Key Specifications
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Application:
Other, Outdoor Mining Power Distribution
Rated Voltage:
11kV / 33kV
Insulation Medium:
SF6 Gas
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Outdoor Mining Power Distribution
Rated Voltage
11kV / 33kV
Insulation Medium
SF6 Gas
Configuration
Ring Main Unit (RMU) Design
Enclosure Protection
Weatherproof and Corrosion Resistant
Operating Mechanism
Spring Operated or Manual
Standard
IEC 62271 Series, Customizable
Brand
Dika Electric
Busbar Material
Copper or Optional
Mounting
Pole-mounted or Ground Substation
As a leading manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing robust and reliable power distribution solutions for demanding industrial environments. Our Outdoor SF6 Ring Main Unit for Mining Power Distribution is engineered to deliver exceptional performance and safety in the harshest outdoor conditions, ensuring a continuous and secure power supply for your critical mining operations. With years of expertise and a commitment to quality underscored by our management system certifications, we design this unit to be a cornerstone of modern, efficient mining power networks, offering superior insulation, minimal maintenance, and long-term operational reliability.
This Ring Main Unit is a compact, fully sealed, and SF6 gas-insulated switchgear designed specifically for outdoor applications. It serves as a key node in ring-type power distribution networks, allowing for reliable power supply, easy fault isolation, and flexible network reconfiguration. The use of SF6 gas as the primary insulation and arc-quenching medium provides significant advantages over traditional air-insulated units, especially in dusty, humid, or corrosive mining environments.
Core Features & Technical Advantages:
- Superior Environmental Resistance: The sealed stainless steel or powder-coated enclosure offers a high degree of protection (typically IP67 or higher), making it impervious to dust, moisture, salt spray, and extreme temperature fluctuations common in mining sites.
- Enhanced Safety with SF6 Insulation: SF6 gas provides excellent dielectric strength, allowing for a much more compact design compared to air-insulated equipment. Its superior arc-quenching properties ensure safe and reliable interruption of fault currents, protecting personnel and downstream equipment.
- Maintenance-Free Operation: The fully sealed, pressurized SF6 system is designed for long service intervals. There is no need for regular cleaning of insulation surfaces, drastically reducing lifecycle costs and downtime.
- Flexible Configuration: Available in various standard schemes (e.g., 2-way, 3-way, 4-way) with combinations of load break switches, fuse-switch combinations, and circuit breaker units to meet specific network protection requirements.
- Easy Installation & Integration: Designed for pole-mounting or ground substation installation. Clear cable terminations and standardized interfaces facilitate quick deployment and integration into existing power distribution systems.
Technical Specifications Table:
| Parameter | Specification |
| Rated Voltage (Ur) | 11kV, 24kV, 33kV |
| Rated Normal Current (Ir) | 630A, 1250A (Customizable) |
| Rated Short-Time Withstand Current (Ik) | 20kA/3s, 25kA/3s |
| Rated Peak Withstand Current (Ip) | 50kA, 63kA |
| Insulation Medium | SF6 Gas at low pressure |
| Operating Mechanism | Spring-operated, Manual (Motorized optional) |
| Enclosure Protection Class | IP67 (Standard), higher grades available |
| Ambient Temperature Range | -25°C to +55°C (Operational) |
Benefits for Your Mining Operation:
- Maximized Uptime: The robust, maintenance-light design minimizes unplanned outages, supporting continuous mining production.
- Improved Personnel Safety: The sealed, touch-safe design and reliable earthing reduce risks associated with electrical faults in challenging environments.
- Space Optimization: The compact footprint saves valuable space in crowded mine sites or substation yards.
- Total Cost of Ownership Reduction: Lower installation costs, minimal maintenance requirements, and high durability translate to significant long-term savings.
- Network Reliability: Enables efficient ring main configuration, providing a backup feed path and ensuring power supply continuity even during maintenance or a fault on one side.
Backed by Jinhua Dika's established manufacturing prowess, with an annual export value reaching up to US$1.5 Million and a presence in major global markets from North America to Southeast Asia and Africa, this product represents a reliable choice for international buyers. Our adherence to structured quality management principles ensures every Outdoor SF6 RMU is built to perform consistently. Sourced directly from our facilities in Zhejiang, China, and shipped via key ports like Shanghai and Ningbo, we offer a combination of proven product reliability and efficient global logistics. Choose this unit to fortify your mining power distribution with a solution that balances advanced technology, ruggedness, and operational economy.
Frequently Asked Questions (FAQ)
-
Q: What is the primary advantage of using SF6 gas in this outdoor RMU?
A: SF6 gas offers superior dielectric strength and arc-quenching capability compared to air. This allows for a much more compact, sealed, and maintenance-free design that performs reliably in dusty, wet, or corrosive outdoor mining environments. -
Q: Is this unit suitable for both 11kV and 33kV applications?
A: Yes, our product line is designed to cover these common medium voltage ratings. The specific model will be configured and tested for its designated rated voltage (e.g., 11kV or 33kV). It is crucial to specify your required voltage during inquiry. -
Q: How often does the SF6 gas need to be checked or refilled?
A: The unit is hermetically sealed with a high-quality welding and gasket system. Under normal operating conditions, the SF6 gas leakage rate is extremely low, and the unit is designed for long intervals (often 20+ years) without requiring gas refilling. A pressure gauge is provided for visual monitoring. -
Q: Can this RMU be equipped with remote monitoring or control?
A: Yes. While the standard unit features manual or spring-operated mechanisms, we can provide options for motorized operation, integrated fault indicators, and communication interfaces (RTU/DTU) for integration into SCADA systems, enabling remote control and monitoring. -
Q: What kind of protection does it offer for mining cables and equipment?
A: Depending on the configuration, it can incorporate various protection elements. Fuse-switch combinations provide overcurrent and short-circuit protection for transformer feeders. Circuit breaker versions offer more comprehensive protection, including overcurrent and earth fault protection. The unit itself is designed to withstand and interrupt high fault currents. -
Q: What are the typical delivery lead times for this product?
A: Lead times vary based on order quantity and specific configuration. For standard configurations, we typically aim for delivery within 4-8 weeks. We can provide a more accurate timeline upon receipt of your detailed specifications. -
Q: Do you provide installation support or technical documentation?
A: Yes. Comprehensive technical documentation, including detailed installation manuals, wiring diagrams, and test reports, is provided with each shipment. We also offer technical guidance and support remotely. On-site installation supervision can be arranged as an additional service. -
Q: How does the unit handle extreme cold or heat at a mining site?
A: The unit is designed for a wide operational temperature range (typically -25°C to +55°C). The SF6 gas insulation performance remains stable across this range. The enclosure materials and internal components are selected to withstand thermal cycling and UV exposure.
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1Yr
Business Type
Manufacturer
Annual Export Value
US$1 Million - US$1.5 Million
Total Employees
11 - 50 People
Product Certifications
HACCP, TL900, QS9000, SA8000, ISO9001, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, OHSAS18001, Others
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