ThisRMU is widely used in urban and rural power grids, industrial plants, commercial centers, railways, substations, and infrastructure projects wherecontinuous power supply and compact design are essential.\n\n\n\n

Key Features\n\n\n\n

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• Compact & Modular Design: Small footprint, making it ideal for urban substations and space-constrained installations.\n\n\n\n
• High Reliability: Fully insulated, fully enclosed structure, and maintenance-free operation.\n\n\n\n
• Enhanced Safety: Arc-resistant design withvacuum load switch technology to improve operational safety.\n\n\n\n
• Flexible Configurations: Can be configured forring network or radial power distribution.\n\n\n\n
• Long Electrical Life: Designed forhigh operational endurance, ensuring long-term performance with minimal maintenance.\n\n\n\n\n

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  Working Conditions\n\n\n\n

  To ensure the best performance and longevity, theHXGN17-12 RMU is designed to operate under the following environmental conditions:\n\n\n\n

  Parameter	Specification
  Ambient Temperature	-25\u00b0C to +40\u00b0C
  Altitude	\u2264 1000m
  Relative Humidity	Daily avg. \u2264 95%, Monthly avg. \u2264 90%
  Seismic Resistance	Up to Magnitude 8
  Environmental Conditions	No fire, explosion risk, corrosive gas, or heavy pollution\n\n\n\n \n\n\n\n Technical Specifications\n\n\n\n General Electrical Specifications\n\n\n\n Parameter Unit FN12-12 FZN25-12 Rated Voltage kV 12 12 1-Min Frequency Withstand Voltage kV 42 (to ground), 48 (isolation breaks) 42 (to ground), 48 (isolation breaks) Lightning Impulse Voltage (Peak) kV 75 (to ground), 85 (isolation breaks) 75 (to ground), 85 (isolation breaks) Rated Frequency Hz 50 50 Rated Current A 630 630 Electrical Life at Rated Current Cycles \u2265100 \u2265100 Open No-Load Transformer Capacity kVA 1250 1250 Rated Stabilizer kA\/S 20\/4, Earth Switch 20\/2 20\/4, Earth Switch 20\/2 Rated Dynamic Stabilizing Current (Peak) kA 50 50 Rated Short Circuit Closing Current (Peak) kA 50 50 Fuse Rated Current A 125 125 Rated Transfer Current A 870 870 Rated Short-Circuit Opening Current kA 20 20 Matching Fuse Type – S\u25a1LAJ-12 S\u25a1LAJ-12 Mechanical Life Cycles 2000 10000 Auxiliary Circuit 1-min Frequency Withstand Voltage kV 2 2 Electric Actuator Working Voltage V AC\/DC 220, 110 AC\/DC 220, 110 Protection Grade – IP2X IP2X\n\n\n\n \n\n\n\n \n\n\n\n Installation & Mounting Dimensions\n\n\n\n Standard Dimensions (mm)\n\n\n\n W D H 600 900 2000 650 900 2000 700 900 2000 800 900 2000\n\n\n\n \n\n\n\n \n\n\n\n Installation Diagram & Components\n\n\n\n TheHXGN17-12 RMU consists of variousfunctional compartments and key components:\n\n\n\n \n Instrument Door: Houses control instruments and metering units.\n\n\n\n Instrumentation: Includes meters and protective relays.\n\n\n\n DXN Display: Displays operational status.\n\n\n\n Nameplate: Identification label with product details.\n\n\n\n Operating Mechanism: Switchgear control section.\n\n\n\n Lower Door: Provides access for maintenance.\n\n\n\n Analog Plate: Displays schematic representation.\n\n\n\n Door Lock: Enhances security.\n\n\n\n Load Switch: Vacuum switch mechanism.\n\n\n\n Center Divider: Structural reinforcement.\n\n\n\n Skeleton: Structural frame.\n\n\n\n Current Transformer: Measures current flow.\n\n\n\n Cable Holder: Supports cable routing.\n\n\n\n Relay Compartment: Houses protective relay units.\n\n\n\n\n \n\n\n\n Ordering Information\n\n\n\n When placing an order for theHXGN17-12 Ring Main Unit, the followingtechnical data should be provided:\n\n\n\n \n Main Wiring Scheme Number: Define purpose and system diagram.\n\n\n\n Rated Voltage & Current: Specify the operational voltage.\n\n\n\n Short Circuit Breaking Capacity: Required fault-handling capability.\n\n\n\n Room Layout Plan: Space arrangement details.\n\n\n\n Protection & Control Requirements: Include schematic diagrams.\n\n\n\n Environmental Considerations: For special conditions.\n\n\n\n Custom Requirements: Any additional configurations.\n\n\n\n\n \n\n\n\n Applications of HXGN17-12 Ring Main Unit\n\n\n\n TheHXGN17-12 RMU is ideal formedium-voltage power distribution networks and provides asafe and efficient solution in:\n\n\n\n \n Urban & Rural Power Distribution: Used in industrial and commercial electrical networks.\n\n\n\n Renewable Energy Projects: Suitable forsolar and wind power stations.\n\n\n\n Underground & Indoor Substations: Compact and enclosed for confined spaces.\n\n\n\n Railway & Metro Networks: Used intrain stations and underground metro networks.\n\n\n\n Industrial Plants & Mining: Essential forfactories, refineries, and mining operations.\n\n\n\n\n \n\n\n\n Advantages of HXGN17-12 RMU\n\n\n\n \n Compact Design \u2013 Small footprint,saving installation space.\n\n\n\n Fully Insulated & Sealed \u2013 No exposure to dust, moisture, or pollutants.\n\n\n\n Low Maintenance \u2013Minimal servicing required over its lifetime.\n\n\n\n Fast & Easy Installation \u2013 Preassembled units ensurequick deployment.\n\n\n\n Long Lifespan \u2013Durable materials for extended operational life.\n\n\n\n Safe & Reliable \u2013 Built-inarc-proof andfault-handling mechanisms.\n\n\n\n Customizable Configurations \u2013 Adaptable forvarious network requirements.\n\n\n\n\n \n\n\n\n TheHXGN17-12 Ring Main Unit (RMU) is astate-of-the-art medium voltage switchgear solution designed formodern power distribution networks. It offersreliable performance, compact design, and enhanced safety features, making it anideal choice for