{"id":476,"date":"2025-03-24T02:40:48","date_gmt":"2025-03-24T02:40:48","guid":{"rendered":"https:\/\/pineele.com\/?p=476"},"modified":"2025-03-24T03:15:51","modified_gmt":"2025-03-24T03:15:51","slug":"xgn2-12-ring-main-unit-rmu-metal-enclosed-high-voltage-switchgear-for-12kv-power-distribution","status":"publish","type":"post","link":"https:\/\/pineele.com\/xgn2-12-ring-main-unit-rmu-metal-enclosed-high-voltage-switchgear-for-12kv-power-distribution","title":{"rendered":"XGN2-12 Ring Main Unit (RMU) \u2013 Metal-Enclosed High Voltage Switchgear for 12kV Power Distribution"},"content":{"rendered":"\n

Introduction to PINEELE XGN2-12Ring Main Unit (RMU)\n\n\n\n

ThePINEELE XGN2-12 Ring Main Unit (RMU) is a high-performance, metal-enclosed, air-insulated switchgear designed for12kV three-phase AC 50Hz power distribution systems. Engineered with precision for environments requiring frequent operations, the RMU utilizes advanced vacuum circuit breakers and rotating-style isolation switches to ensure optimal electrical performance, safety, and reliability.\n\n\n\n

ThisRing Main Unit adheres to bothnational (GB3906) andinternational (IEC298) standards, with protection ratings up toIP4X, making it the ideal solution for medium-voltage indoor power systems. With enhanced mechanical interlocking and advanced insulation technology, the PINEELE XGN2-12 RMU delivers robust, flexible solutions tailored for today\u2019s evolving power infrastructure.\n\n\n\n

\"XGN2-12\n\n\n\n
\n\n\n\n

Key Features of the PINEELE XGN2-12 Ring Main Unit\n\n\n\n

Modular Flexibility\n\n\n\n
    \n
  • The RMU offers a highlymodular and expandable design, using sulfur hexafluoride (SF\u2086) as the main insulation medium, and air insulation for other compartments.\n\n\n\n
  • Its compact footprint supports flexible deployment inurban power networks,industrial terminals, andcritical infrastructure.\n\n\n\n\n

    Advanced Switching Mechanisms\n\n\n\n
      \n
    • The main switch options include theZN28A-12 segmental vacuum circuit breaker, theZN28-12 integral vacuum breaker, and theZN63-12 (VS1) breaker, combined withCD17\/CD10 electromagnetic orCT17\/CT19 spring operation mechanisms.\n\n\n\n
    • The isolation switch utilizesGN30-10 rotating orGN22-10 high-current isolation technologies.\n\n\n\n\n

      High-Level Protection\n\n\n\n
        \n
      • All doors, grounding switches, and circuit mechanisms are equipped with robustmechanical interlocking systems, fulfilling the \u201cFive-Prevention Safety\u201d principle.\n\n\n\n\n
        \n\n\n\n

        Operating Conditions for the PINEELE XGN2-12 RMU\n\n\n\n

        The PINEELERing Main Unit is built for harsh environments and conforms to strict operating parameters:\n\n\n\n

          \n
        • Ambient Temperature: -25\u2103 to +40\u2103\n\n\n\n
        • Altitude: \u22641000m\n\n\n\n
        • Humidity: \u226495% daily average, \u226490% monthly average\n\n\n\n
        • Vapor Pressure: \u22642.2\u00d710\u00b3 MPa\n\n\n\n
        • Seismic Resistance: \u22648 degree\n\n\n\n
        • Installation Site: No fire, explosive risks, severe pollution, chemical corrosion, or strong vibration\n\n\n\n\n
          \n\n\n\n

          Technical Specifications Table\n\n\n\n
          ItemUnitXGN15-12(F) \/ 630-20XGN15-12(F.R)\/T125-31.5
          Rated VoltagekV1212
          Rated CurrentA630125
          Rated FrequencyHz5050
          Rated Frequency Withstand VoltagekV42\/4842\/48
          Rated Impulse Withstand VoltagekV75\/8575\/85
          Rated Active Load Breaking CurrentA630\u2014
          Closed-Loop Distribution Circuit CurrentA630\u2014
          Short-Circuit Making Current (Peak)kA5080
          Peak Withstand CurrentkA5050
          Short-Time Withstand CurrentkA2020
          Short Circuit Durations44
          Rated SF\u2086 Gas Pressure (20\u00b0C)MPa0.040.04
          Loop Resistance\u00b5\u03a9\u2264200\u2264400
          Mechanical Endurance (LBS\/Earthing)Cycles5000\/30005000\/3000
          Short-Circuit Breaking CurrentkA20\/5031.5\/50
          Transfer CurrentA\u20141750
          Protection Degree\u2014IP4XIP4X\n\n\n\n
          \n\n\n\n

          Structural and Functional Highlights\n\n\n\n

          Metal-Enclosed Structure\n\n\n\n

          ThePINEELE Ring Main Unit is designed as a fully enclosed metal cabinet. ItsIP2X\/IP4X protection level prevents accidental contact and ingress of foreign materials, enhancing operational safety.\n\n\n\n

          High Insulation Integrity\n\n\n\n

          Utilizingporcelain support insulators (\u22658000N) and aminimum insulation distance of 125mm, the system achieves higher dielectric strength and operational stability under stress.\n\n\n\n

          Smart Grid Readiness\n\n\n\n

          With built-in sensor compatibility and protective relays, the RMU isready for digital substations, offeringreal-time data andremote control capabilities.\n\n\n\n


          \n\n\n\n

          Industry-Leading Advantages of PINEELE RMU\n\n\n\n
            \n
          • Compliance withGB3906 and IEC298\n\n\n\n
          • Flexible breaker configurations for various operational needs\n\n\n\n
          • SF\u2086 and air-insulated dual structure forcompactness and safety\n\n\n\n
          • Protection against seismic activity, humidity, and pollution\n\n\n\n
          • Meets growing demand forsmart and green grid infrastructure\n\n\n\n\n
            \n\n\n\n

            Frequently Asked Questions (FAQ)\n\n\n\n

            1. What makes the PINEELE XGN2-12 Ring Main Unit ideal for urban distribution networks?\n\n\n\n

          The compact andmodular design of the PINEELERing Main Unit makes it perfect for tight urban spaces where traditional switchgear systems are too large. ItsSF\u2086 insulation, high protection class, and maintenance-free design reduce installation costs and long-term operational challenges.\n\n\n\n


          \n\n\n\n

          2. Can the PINEELE RMU be integrated into smart grid systems?\n\n\n\n

          Yes. ThePINEELE XGN2-12 Ring Main Unit is designed withsensor interfaces and intelligent relays, supporting full automation, remote diagnostics, and predictive maintenance features, all crucial for smart grid integration.\n\n\n\n


          \n\n\n\n

          3. How does the PINEELE Ring Main Unit ensure operational safety?\n\n\n\n

          Safety is ensured throughmechanical interlocks,IP-rated enclosures, andfive-prevention logic, which prevents unsafe operations such as opening a live circuit or misconfiguring the grounding mechanism.\n\n\n\n


          \n\n\n\n

          Future-Oriented Energy Distribution Solutions\n\n\n\n

          As power grids shift towardsrenewable energy,digital monitoring, andspace-saving infrastructure, the demand forRing Main Units that are bothtechnologically advanced andscalable continues to grow. ThePINEELE XGN2-12 RMU is engineered to meet these challenges head-on, offering utilities, industries, and municipalities a powerful tool for sustainable and smart energy distribution.\n","protected":false},"excerpt":{"rendered":"

          Introduction to PINEELE XGN2-12 Ring Main Unit (RMU) The PINEELE XGN2-12 Ring Main Unit (RMU) is a high-performance, metal-enclosed, air-insulated switchgear designed for 12kV three-phase AC 50Hz power distribution systems. Engineered with precision for environments requiring frequent operations, the RMU utilizes advanced vacuum circuit breakers and rotating-style isolation switches to ensure optimal electrical performance, safety, […]\n","protected":false},"author":1,"featured_media":478,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ring-main-unit"],"acf":[],"yoast_head":"\n