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SafeRing-12 Fully insulated inflatable ring switchgear with Insulation Protection

MR-SafeRing-12/24 Fully Insulated Inflatable Ring Switchgear is a SF6 gas-sealed solution for 10-24kV grids. This fully insulated inflatable ring switchgear features stainless-steel modules with 30-year lifespan, immune to harsh environments. Its coaxial load switch prevents misoperation while enabling flexible expansion. Certified by China's High Voltage Test Center, it supports vacuum breakers for substations, airports and metros. With 0.15-0.4bar pressure monitoring and automation readiness, this maintenance-free fully insulated inflatable ring switchgear ensures reliable power distribution.

    Type Designation

    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-10
    1 Manufacturer Code
    2 Model Type
    3 Rated Voltage: 12 Rated voltage 12KV; 24 Rated voltage 24KV
    4 Cabinet Type: C: Load Switch Cabinet;     F: Fuses Switchgear Cabinet;     V: Vacuum Circuit Breaker Cabinet;     M: Measuring cabinet; SV,SL,Bus Sectionalizing Switchgear;        PT: PT Cabinet(Co-enclosure cabinet composed of any combination of C,F,V,S,VSL.)
    5 Rated Current: 630 Rated Current 630A; 1250 Rated Current 1250A
    6 Expansion Type: I: Left Extension; D: Right Extension; ID: Both Sides; Blank: extendable
    7 Cable entry/exit method: L: Left; R: Right; LR: Both; Blank:Front

    Performance Indicators

    Unit Code Description Unit Code Description
    C Standard Single-Bushing Load Switch Unit - Top Busbar Bushing
    F Load Switch-Fuse Combination Unit SL Bus Coupler Unit
    V Circuit Breaker Unit M Metering Unit
    D Cable Incoming Unit (Non-Switch) PT PT Unit
    + Busbar Side Bushing 1K2(4) Load Switch Unit with Double Bushings
    SF6 Gas Pressure Absolute Pressure at 20℃:1.4 BAR Normal Operating Environmental Conditions
    Annual Gas Leakage Rate ≤0.2%per year Maximum Temperature 40℃
    Protection Level IP67 Minimum Temperatur -40℃
    Gas Chamber Stainless Steel Thickness 3.0mm Maximum Average Relative Humidity ≤95%
    Altitude ≤2000 meters
    Busbars Color
    Switchgear Busbar 400mm²Cu Switchgear Front Panel RAL7012
    Switchgear Grounding 150mm²Cu Side Panels & Cable Room Front Cover RAL7035
    Compliant Standards
    GB/T11022 GB3906 GB1985 GB3309 IEC60129 IEC60298
    GB16926 GB38041 GB1984 IEC60056 IEC60265 IEC60420 IEC60694

     product Display

    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-with-In
    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-(1)
    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-(2)
    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-(3)
    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-(4)
    SafeRing-12-Fully-insulated-inflatable-ring-switchgear-(5)

    Technical Parameters

    Model C Module F Module V Module CB Module
    Composite Switch Combined Electrical Apparatus Vacuum Switch Disconnecting/Earthing Switch Vacuum Circuit Breaker Disconnecting/Earthing Switch
    Rated Voltage kV 12 12 12 12 12 12
    Rated Frequency Hz 50 50 50 50 50 50
    Power Frequency Withstand Voltage (Phase-to-Phase/Port) kV 42/48 42/48 42/48 42/48 42/48 42/48
    Lightning Impulse Withstand Voltage kV 75/85 75/85 75/85 75/85 75/85 75/85
    Rated Current A 630 Note" 630 1250/630
    Rated Closed-loop Breaking Current A 630
    Rated Cable Charging Breaking Current A 135/135
    Rated Short-circuit Making Current (Peak) A 50 80
    Rated Peak Withstand Current kA 50
    Rated Short-time Withstand Current kA/3s 20
    Rated Short-circuit Breaking Current kA 31.5 20 25
    Rated Transfer Current A 1750
    Maximum Current of Associated Fuse A 125
    Loop Resistance -n ≤300 ≤600
    Mechanical Life Operations 5000 3000 5000 2000 5000 5000
    Note: 1) Depends on the current rating of the fuse

    MR-SafeRing-12 Gas-insulated Switchgear Structure

    Safering-12-5
    1. Fuse Compartment 5. Serial Number Labe1 9. Cable Compartment 13. Load Switch Operation Port
    2. Capacitive Voltage Indicator 6. Schematic Diagram 10. RTU Mounting Compartment 14. Earthing Switch Operation Port
    3. Short-circuit Ground Fault Indicator (Accessory) 7. Fuise Blow Indicator 11. Key Lock (Accessory) 15. Disconnector Operation Port
    4. Pressure Indicator 8. Panel-mounted Padlock Device 12. Circuit Breaker Operation Port 16. Trip Button
    17. Close Button
    Safering-12-7