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GSVR Ⅱ -12 (V)

GSVR-12 Switch Features
1.Vacuum interrupter and three-position disconnector are monolithically encapsulated within a single epoxy insulation housing, achieving maximized compactness with simplified construction for streamlined installation.
2.The fully cast monolithic sealing structure is engineered for 5,000-meter altitude operation, effectively preventing insulation performance degradation under low-pressure conditions
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    GSVR-12 Switch Features

    1.Vacuum interrupter and three-position disconnector are monolithically    encapsulated within a single epoxy insulation housing, achievingmaximized compactness with simplified construction for streamlinedinstallation.
    2.The fully cast monolithic sealing structure is engineered for 5,000-meter    altitude operation, effectively preventing insulation performancedegradation under low-pressure conditions

    Operating Conditions

    GSVR-12
    Altitude
    ≤5000m

    Temperature
     
    Maximum
    50℃
    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.


    GSVR-12 Series

    The GSVR I/II series solid-insulated switches employ a downward isolation configuration, offering two functional unit options: circuit breaker     (CB) and switch-fuse combination. For insulation treatment, two external surface variants are provided: zinc-sprayed and non-zinc-sprayed. The zinc-sprayed version utilizes a  proprietary arc zinc fusion process that metallurgically bonds a uniform, dense zinc layer to the epoxy resin housing surface. This achieves a  fully shielded and grounded design (achieving equipotential bonding),  effectively equalizing electric field distribution, suppressing partial discharge (PD), and ensuring personnel safety during contact operations.

    Primary Circuit


    Circuit Breaker

    1.    Employs vacuum arc interruption technologyto ensure high breaking capacity and longelectrical life.
    2.    The shaft support within the transmissionsystem extensively uses precision needleroller bearing design, ensuring flexiblerotation and high transmission efficiency


    Disconnector

    1.    Three-position design theoretically eliminatesmisoperations through intrinsic interlocking.
    2.Creepage and clearance distance betweenthe isolation blade and groundingcontact/stator contact is 125mm, ensuringinsulation reliability
    3.High-performance disc springs ensurestability of contact pressure.
    4.Contact design favorable for closing shape,grounding closing speed ≥4.2m/s, ensuringgrounding closing reliability.

    Load Switch-Fuse Combination

    1.    Precision Coordinated Protection:Under transfer current conditions ≤3150A, the load switch and fuse achieve precisecoordination to eliminate protection blindspots, ensuring comprehensive fault coverageacross the entire operational range.
    2.Phase-Loss Prevention Mechanism:During single-phase fuse operation, the tripping striker activates the mechanicalrelease mechanism to initiate three-phasesimultaneous opening of the load switch,completely eliminating risks associated withsingle-phasing operation.
    3.Optimized Division of Protection Duties:Fuses assume short-circuit and overloadprotection functions, while the load switchhandles rated current and transfer currentclosing operations. This significantly reducesthe load switch's breaking capacity requirements
    and extends its mechanical lifespan
    4.High-Efficiency Maintenance Design:    The fuse cartridge employs a modular quick-con nect/disconnect design, substantially reducingboth fuse replace ment time and poweroutage duration, thereby enhancing operationaland maintenance efficiency

    Operating Mechanism

    Circuit Breaker/Load Switch     Operating Mechanism

    1.Components like the main switch mechanism's    motor, auxiliary switch, release, and limit switchare readily replaceable, facilitating productmaintenance.
    2.Dual-spring precision transmission designwith reclosing function.
    3.Main switch mechanism features automaticcounting to meet grid requirements.
    4.All transmission components are made of high-quality quenched and tempered steel and hardened steel,ensuring a long service life.
    5.Core transmission uses needle roller bearingdesign, offering strong impact resistance,high load capacity, and low friction.

    Disconnector Mechanism

    1.Isolation mechanism uses a three-positionsingle-spring design with two independentoperating shafts, theoretically eliminatingmisoperations.2.Isolation operating mechanism can beequipped with an electric option.
    3.Dual-clutch technology allows free    switching between manual and electricoperation.
    4.Output shaft uses gear acceleration    design, offering high output efficiency,large transmission power, and groundingclosing speed ≥4.2m/s.

    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
    Spring Energized Travel Switch
    		 1
    CK2
    Spring Energized Travel Switch
    		 1
    CK3
    Spring Energized Travel Switch
    		 1
    S1-1
    DisconnectorTravel 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

    GSVR-12 Series Primary Main Wiring Scheme


    Typical Application Schemes


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