Product Overview
The HXGN15-12 Indoor Fixed Ring Main Unit RMU is a cost-effective, fully enclosed medium voltage distribution solution tailored for 12kV urban ring network and industrial terminal power systems. Different from traditional bulky switchgear, this precision-engineered indoor fixed ring main unit adopts a fully assembled aluminum-zinc coated steel plate structure without welding points, delivering high structural strength and excellent corrosion resistance. Centered on reliable circuit control, this professional load break switch RMU cabinet is equipped with high-performance SF6 load break switches, realizing safe load switching, loop power transmission and fault isolation for various medium voltage distribution networks. As a space-saving and durable compact SF6 ring main unit, it features full sealed gas insulation and maintenance-free operation, becoming the ideal standardized equipment for urban grid renovation, box substation integration and industrial terminal power distribution projects worldwide.
Core Product Features
Stable Fixed Structure & High Structural Durability:
This standardized indoor fixed ring main unit adopts CNC laser-processed aluminum-zinc coated steel plate frame with an integral assembly structure. The welding-free design effectively avoids structural deformation and rusting risks, ensuring long-term structural stability in indoor operating environments. The optimized fixed layout improves overall equipment rigidity and anti-vibration performance, perfectly adapting to long-term static installation in compact power distribution rooms and box substations.
Reliable Load Break Switch Control & Precise Grid Protection:
Dedicated for medium voltage loop power regulation, this professional load break switch RMU cabinet integrates high-quality SF6 load break switches and spring operating mechanisms, supporting manual and electric dual operation modes. It achieves accurate breaking of rated load current and loop closing operation, with stable mechanical performance and 2000+ times mechanical service life. Matched with grounding switch and perfect mechanical interlock devices, it completely eliminates misoperation risks during equipment operation and maintenance.
Ultra-Compact Design & Full SF6 Sealed Insulation:
This highly practical compact SF6 ring main unit features a miniaturized intensive layout, greatly reducing floor space compared with conventional medium voltage switchgear. All high-voltage live parts are fully sealed in a stainless steel gas chamber filled with high-purity SF6 gas, realizing complete insulation from external dust, moisture and pollutants. The excellent airtight structure ensures stable internal gas pressure and consistent electrical performance in complex working conditions.
Long-Term Maintenance-Free Operation & Low OPEX:
Benefiting from the fully enclosed SF6 gas insulation system and integrated modular design, the equipment requires no routine insulation detection and component replacement after installation. It realizes 20-year-level maintenance-free stable operation, significantly reducing daily operation and maintenance labor costs and equipment downtime losses for power grid operation enterprises and industrial users.
Complete Five-Prevention Interlock & High Safety Factor:
Equipped with scientific and reliable mechanical interlock mechanisms between load switch, isolating switch, grounding switch and cabinet door, the equipment strictly follows five-prevention safety specifications. It effectively prevents live closing, grounding closing and other illegal operations, realizing full-dimensional safety protection for medium voltage ring network power distribution.
Technical Specifications
|
Parameter |
Technical Standard |
|
Product Model |
HXGN15-12 Indoor Fixed SF6 Ring Main Unit |
|
Rated Voltage |
12kV |
|
Rated Frequency |
50/60Hz |
|
Rated Current |
630A |
|
Short-Time Withstand Current |
20kA/25kA (2s) |
|
Insulation Medium |
High-Purity SF6 Gas |
|
Operation Mode |
Manual / Electric Optional |
|
Protection Grade |
IP2X |
|
Executive Standard |
IEC 60420, IEC 62271-200 |
|
Mechanical Life |
≥2000 Operations |
|
Maintenance Cycle |
20-Year Maintenance-Free |
Application Scenarios
This cost-effective indoor fixed ring main unit is widely deployed in urban ring network power supply, residential community power distribution, box-type substation supporting, industrial park terminal power supply and rural power grid upgrading projects. With reliable loop regulation capability, the practical load break switch RMU cabinet is the preferred terminal distribution equipment for compact and space-limited power station scenarios. The miniaturized compact SF6 ring main unit supports flexible combination of incoming and outgoing loops, adapting to both new ring network construction and old power grid renovation, greatly improving power supply reliability of terminal distribution networks.
Product Strengths & Factory Professionalism
Our factory specializes in the R&D and customized production of 12kV fixed SF6 ring main units, focusing on structural optimization of assembled RMU cabinets and long-term stability improvement of load break switch systems. With professional medium voltage insulation technology and standardized manufacturing systems, we provide high-cost-performance and low-maintenance power distribution solutions for global municipal and industrial power projects, fully complying with Google EEAT authority and credibility evaluation standards.
Professional Structural R&D Advantages:
The technical team optimizes the welding-free assembly structure of indoor fixed ring main unit to solve the problems of easy deformation and poor corrosion resistance of traditional welded cabinets. The customized SF6 sealing structure ensures stable air pressure and zero air leakage in long-term operation, guaranteeing consistent equipment performance.
Stable Load Switch System Technology:
We independently optimize the matching performance of load break switch and operating mechanism for load break switch RMU cabinet, improving switching accuracy and mechanical service life. The equipment maintains stable breaking performance under frequent loop closing and load switching conditions, adapting to long-term grid cyclic operation.
Standardized Production & Complete Qualifications:
All compact SF6 ring main unit products are manufactured in strict accordance with IEC international standards, with complete ISO9001 quality certification, CE certification and third-party type test reports. Complete English technical documents support overseas project bidding, filing and engineering acceptance.
Strict Full-Process Quality Control:
Each equipment passes air tightness test, mechanical operation test and insulation performance test before delivery. We provide 24-month factory warranty and professional remote technical support, ensuring long-term maintenance-free and stable operation of customer power distribution systems.
Get Custom Quotation
Please inform us of your required loop configuration, operation mode and project environment. Our professional technical team will provide you with tailored RMU solution and competitive quotation within 24 hours.
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