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GSVM -12 (V)

GSVM-12 Switch Features
1.Three-phase split design eliminates the risk of inter-phase short- circuitfaults.
2.The insulation surface uses a unique arc-sprayed zinc process,achieving full grounding, full shielding, and a touchable surface.
3.Carbon fiber shielding layer balances electric field distribution and improves heat dissipation efficiency.
4.The switch configuration adopts an upward isolation scheme, fully compliant with SGCC standardized specifications.
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  • Detail

    Operating Conditions

    GSVM-12（V)
    Altitude
    ≤2000m

    Temperature
     
    Maximum
    55℃
    Minimum
    -40℃
    Average within 24h
    ≤35℃
    Humidity
    Average relative humidity within 24h
    ≤95%
    Monthly average relative humidity
    ≤90%
    Environment
    Surrounding air free of explosive, corrosive gases，installation site free of severe vibration and impact
     


    Notes

    Please contact us for requirements exceeding the above conditions.
    GSVM-12 Series

    The GSVM series solid-insulated switch complies with the Standardized Design Scheme for10kV Ring Main Units (RMUs), featuring core design innovations:

    1. Segregated Three-Phase Structure:

    Each phase's conductive path and insulation are independently    encapsulated, significantlyenhancing interphase dielectric strength
    and effectively preventing phase-to-phase shortcircuit faults.

    2. Advanced Surface Treatment Technology:

    A proprietary arc zinc fusion process is applied to the epoxy insulationsurface of core units,creating a uniform, dense metallic zinc coating. Thisachieves:
    1.Full shielding & Grounding Design: Forms an equipotential
    grounding shield layer to equalize electric field distribution and
    suppress partial discharge (PD).
    2.Safe-to-Touch Surface Characteristics: Ensures personnel safety
    during operation.
    3.Enhanced Surface Protection: Metallurgically bonded zinc-epoxy
    composite forms arobust, dense insulation structure.

    3. Superior Environmental Resilience:

    The solid insulation combined with zinc shielding effectively withstands insulation degradationcaused by contamination, humidity, condensation,and other harsh environmental factors.Collectively, these designs ensure exceptional dielectric reliability, provide robustassurance for long-term stable operation, and deliver significantly elevated overall safetyperformance.
    Primary Circuit

    Circuit Breaker

    • Employs vacuum arc-extinguishingtechnology to ensure high breakingcapacity and long electrical life.
    • The transmission system's shaft supportextensively uses needle roller bearingdesign, ensuring flexible rotation and hightransmission efficiency.

    Disconnector

    • Three-position design theoreticallyeliminates the occurrence of misoperations.
    • Air distance between the isolation bladeand grounding contact/stator contact is125mm, ensuring insulation reliability.
    • High-performance disc springs ensurestability of contact pressure.
    • Contact design favorable for closing shape,grounding closing speed ≥4.2m/s, ensuringgrounding closing reliability

    Operating Mechanism
    Circuit Breaker Mechanism

    • Five-link mechanism transmission designwith reclosing function.
    • The planetary deceleration DC permanentmagnet motor has a small volume, stableoperation and an amazing transmission
    efficiency of about 3% energy loss.
    • Components like the main switch's motor,auxiliary switch, release, and limit switchare readily replaceable.
    • Dual-spring precision transmission designwith reclosing function.
    • All transmission components are made of high-quality quenched and tempered steeland hardened steel,ensuring a long servicelife.
    • Core transmission uses needle rollerbearing design, offering strong impactresistance, high load capacity, and lowfriction.

    Disconnector Mechanism

    • Isolation mechanism uses a torsion - spring - based quick - acting mechanism, achieving the three positions "Close, Open, Ground"(standard three - position states fordisconnectors) through torsion springforward/reverse rotation.
    • Rigid bidirectional mechanical limit designat the isolation position ensures precisepositioning of the isolation position(Open/Close states), preventing displacement due to external force.
    • Rigid mechanical interlocking for five -prevention functions reliably preventsmisoperation.



    Electrical Schematic Diagrams


    Equipment No
    Equipment Name
    Quantity
    -DL
    Circuit Breaker
    		 1
    HQ
    Circuit Breaker Closing Coil
    		 1
    TQ
    Circuit Breaker Tripping Coil
    		 1
    M1
    Circuit Breaker Spring Energy - storage Motor
    		1
    CK1
    Disconnector Travel Switch
    		 1
    CK2
    Earthing Switch Travel Switch
    		 1
    CK3
    Spring Energized Travel Switch
    		 1
    S1-1
    Disconnector Travel Switch
    		 1
    S1-2
    Disconnector Travel Switch
    		 1
    S1-3
    Disconnector Travel Switch
    		 1
    S3-1
    Earthing Switch Travel Switch
    		 1
    S3-2
    Earthing Switch Travel Switch
    		 1
    S3-3
    Earthing Switch Travel Switch
    		 1
    EL1
    Light
    		 1

    Typical Application Schemes

    GSVM-12 Series Primary Main Wiring Scheme



    Typical Application Schemes


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