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location：Intelligent Power Distribution Products > Medium Voltage Large Current Inflatable Cabinet

GIR-V series
Gas Insulated High Voltage Switchgear

Features
The GIR-V series gas-insulated high-voltage switchgear is an SF6 fully inflated and insulated high-current switchgear. It has strong environmental adaptability, requires no maintenance, and occupies significantly less space compared to air-insulated switchgear with equivalent parameters. The fully stainless-steel sealed pressure vessel ensures the safe and reliable operation of the energized switchgear components, maintaining the internal SF6 gas insulation medium pressure and extremely low losses. This product is used in substations, petrochemical plants, photovoltaic systems, wind power, and other low-maintenance distribution locations. When equipped with the Minghan digital distribution system, it enables remote monitoring and information management.
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  • Features
  • Parameter
  • Application field

  • Voltage level: 12kV

    Product features:

    1.High current capacity: With a rated current of up to 3150A, the rated breaking current can reach 40kA

    2.Maintenance-free: All live parts are enclosed within a sealed stainless-steel pressure vessel, utilizing sealed cable heads

    3.Compactness: With a cabinet width of only 60cm, it helps save significant space

    4.Real-time status monitoring: Facilitates gas pressure monitoring, cable head temperature monitoring, operation status monitoring, and environmental monitoring


  • Serial number

    Items

    Unit

    Parameter

    1

    Rated voltage

    kV

    12

    2

    Rated frequency

    Hz

    50

    3

    Rated current

    A

    1250~3150

    4

    Rated insulation level

    1min

    Power frequency withstand voltage

    Phase tophase and Phase to ground

    kV

    42

    5

     

     

    Across contacts

    kV

    48

    6

     

     

    Control and auxiliary circuits

    kV

    2

    7

     

    Lightning impact withstand voltage

    Phase tophase and Phase to ground

    kV

    75

    8

     

     

    Across contacts

    kV

    85

    9

    Rated short-time withstand current

    kA

    25、31.5、40/4

    10

    Rated peak withstand current

    kA

    63、80、100

    11

    Rated short-circuit breaking current

    kA

    25、31.5、40

    12

    Rated short-circuit closing current

    kA

    63、80、100

    13

    Circuit breaker electrical lifespan

    /

    30

    14

    Rated operating sequence

    /

    O-0.3s-CO-180s-CO

    15

    Mechanical life

    Load switch/circuit breaker

    Times

    10000

    16

     

    Isolation or grounding switch

    Times

    3000

    17

    Rated inflation pressure (gauge pressure at 20℃)

    Mpa

    0.02

    18

    Annual relative gas leakage rate

    Year

    ≤0.01%

    19

    Insulating gas

    /

    Sf6

    20

    Protection level

    Compartment (IP code)

    /

    IP2XC

    21

     

    Gas box (IP code)

    /

    IP67

    22

     

    Cabinet body (IP code)

    /

    IP41

    23

    Arcing test (fault current/duration)

    kA/s

    40/1

  • Substations, petrochemical facilities, photovoltaic systems, wind power, and other areas that require low-maintenance power distribution