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As a professional manufacturer of electrical distribution equipment, Jinhua Dika Electrical Equipment Co., Ltd. is proud to introduce our Indoor SF6 Gas Insulated Ring Main Unit (RMU) featuring Glock switches and IP67 compliance. Designed for reliable medium voltage power distribution in indoor environments, this unit represents our commitment to safety, durability, and operational efficiency. Our extensive experience in exporting to global markets ensures that this product meets the rigorous demands of diverse electrical networks. With an integrated focus on quality management systems, we deliver switchgear that provides secure power control and simplified maintenance for utilities and industrial facilities worldwide.
This Indoor SF6 Gas RMU is engineered to offer superior performance in confined indoor spaces where environmental protection and compact design are critical. The use of SF6 gas as the insulation medium allows for a significantly reduced footprint compared to air-insulated units, making it an ideal solution for urban substations, commercial buildings, and industrial plants. The incorporation of Glock switches ensures a robust mechanical interlocking system, preventing incorrect operations and enhancing personnel safety. The IP67 rating guarantees protection against dust ingress and temporary immersion, providing resilience in challenging indoor conditions.
- Enhanced Safety: The SF6 gas insulation is non-flammable and provides excellent arc-quenching properties. The Glock switch mechanism includes visible isolation points and reliable earth switches, creating a safer working environment for maintenance crews.
- Space Optimization: The compact, sealed tank design allows for installation in space-constrained locations, reducing the required floor area for electrical rooms by up to 70% compared to traditional switchgear.
- Low Maintenance & High Reliability: The hermetically sealed, maintenance-free SF6 gas system minimizes operational costs. The unit is designed for a long service life with minimal intervention, ensuring continuous power supply.
- Operational Flexibility: Available in various feeder configurations (e.g., 2-way, 3-way, 4-way) to suit different network layouts. Options for cable or busbar connections provide installation adaptability.
- Environmental Resilience: The IP67 enclosure protects internal components from dust, moisture, and corrosive atmospheres commonly found in industrial settings, ensuring consistent performance.
The technical specifications of our Indoor SF6 Gas RMU are detailed below, highlighting key parameters that define its performance envelope.
| Parameter | Specification | Details / Notes |
| Rated Voltage | 12kV / 24kV / 36kV | Standard ratings available; other voltages customizable. |
| Rated Normal Current | 630A | Standard rating; higher ratings available upon request. |
| Short-Time Withstand Current | 25kA / 3s | Ensures network stability during fault conditions. |
| Insulation Medium | SF6 Gas | Provides high dielectric strength and arc-quenching capability. |
| Operating Mechanism | Glock Switches (Spring-operated) | Features mechanical interlocking for safe operation sequences. |
| Ingress Protection (Enclosure) | IP67 | Protects against dust and temporary water immersion. |
| Dimensions (Approx. LxWxH) | Customizable | Compact design; exact dimensions depend on feeder configuration. |
| Operating Temperature Range | -25°C to +40°C | Suitable for standard indoor environments. |
Beyond the core specifications, this RMU offers significant benefits for network operators and facility managers. The modular design allows for future expansion or reconfiguration of the network without replacing the entire unit. The use of SF6 gas at low pressure minimizes environmental concerns while maintaining performance. For remote monitoring and control, options for integration with SCADA systems, fault indicators, and motorized operation are available. Our units are designed for easy cable termination, reducing installation time and labor costs. The robust steel enclosure, finished with a corrosion-resistant coating, ensures long-term structural integrity even in humid indoor conditions.
Choosing Jinhua Dika means partnering with a manufacturer backed by a solid operational framework. Our annual export value of US$1 Million to US$1.5 Million demonstrates our capability to serve international clients reliably. With a dedicated team of 11-50 professionals, we provide focused attention to each project, from design to delivery. Our product development and manufacturing processes are guided by a commitment to quality, as reflected in our adherence to recognized management system standards. We support our clients through major ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring efficient logistics to destinations across North America, South America, Europe, Asia, Africa, and Oceania. This global reach, combined with our provision of dedicated technical support, ensures you receive not just a product, but a comprehensive solution for your indoor power distribution needs.
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What is the primary advantage of using SF6 gas in an indoor RMU?
SF6 gas offers excellent insulation and arc-quenching properties in a compact space. This allows for a much smaller equipment footprint compared to air-insulated switchgear, which is crucial for space-limited indoor electrical rooms. Its sealed system also requires less maintenance. -
How does the IP67 rating benefit an indoor unit?
While indoors, switchgear can still be exposed to dust, moisture from cleaning, accidental spills, or high humidity. The IP67 rating ensures the unit is completely protected against dust ingress and can withstand temporary immersion in water, significantly enhancing its reliability and lifespan in challenging indoor environments. -
What does 'Glock Switches' refer to in this context?
Glock switches denote a specific type of robust, spring-operated switching mechanism known for its mechanical interlocking features. This design prevents unsafe operating sequences (like closing an earth switch on a live circuit), providing a high level of operational safety for personnel. -
Can this RMU be customized for different voltage or current ratings?
Yes. While standard ratings like 12kV/630A are common, our manufacturing capability allows for customization. We can design units for other voltage levels (e.g., 15kV, 24kV) and higher current ratings based on your specific project requirements and network parameters. -
What kind of technical support do you provide?
Our technical support includes pre-sales consultation for system design and product selection, detailed installation guidance and documentation, and after-sales support for operational queries. We can also provide training for your maintenance staff on the safe operation of the RMU. -
Is the SF6 gas handling environmentally compliant?
Our units are designed as sealed, maintenance-free systems for their operational life, minimizing the need for gas handling. We adhere to responsible manufacturing practices, and the gas is contained within a high-integrity, pressure-resistant enclosure to prevent leakage. -
What are the typical delivery lead times?
Lead times depend on the order quantity and specific configuration. Standard configurations typically have shorter lead times. We utilize multiple major ports in China (Shanghai, Tianjin, Guangzhou, Ningbo) to ensure prompt and flexible shipping options to meet your project schedule. -
How does this indoor RMU connect to the power network?
The unit is designed for standard cable connections. It features easily accessible cable compartments for terminations. Options for different cable entry types (top, bottom, rear) and busbar connections for linking multiple panels are available to suit your layout.
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