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CG Global - Product Details

GIS Up To 245 kV

Home Power Switchgear Products- MV / HV / EHV / UHV EHV Switchgear GIS Up To 245 kV
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    Gas Insulated Substation

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    GIS

EHV Switchgear

GIS Up To 245 kV product_image

Gas Insulated Substation (GIS) from 72.5kV to 245kV. CG has supplied its High Voltage GIS to various utilities spread across different climatic conditions such as sub-zero temperature in Ukraine and in Himachal Pradesh to hot and humid in Mumbai and Surat in India. Our GIS adhere to the requirements of the National and International Quality, Environment and Safety Standards including ISO 9001–2015, ISO 14001 and ISO 18001. The performance and reliability of GIS has been verified through Type tests at renowned international testing laboratories like KERI (South Korea) and ERDA (India), including Short Circuit Making and breaking, Switching Tests, Dielectric Tests including Power Frequency Withstand, Lightning Impulse and Partial Discharge test etc as per IEC 62271-100.

    • Fully Compliant to IEC standards
    • 66 kV to 245 kV Voltage Rating
    • 66 kV to 145 kV: Three-phase encapsulated Design, Three phase Auto-Reclosing (GO) Circuit Breaker
    • 245 kV: Single-phase encapsulated Design, Single and three Pole Auto-reclosing (SPR) Circuit Breaker.
    • Single Bus, Double Bus and Tie Bus Configuration
    • GIS Terminations :
    • SF6-Cable (GIS-Cable as per IEC 62271-209),
    • SF6-Air (Bus duct-Bushing to Over Head Line) and
    • SF6-Oil (GIS Bus duct to Transformer as per IEC/TR 61639)
    • Bay Mounted and Bay Front Mounted LCC
    • Upto Five CT Cores per Phase
    • 1C/2C/3C Cables Terminations per Phase.
    • Modular system to fulfil user requirements
    • Complete single or three-phase enclosed construction and compact design ensuring reduced space requirement
    • Aluminium enclosures result in low enclosure losses, are light weight and corrosion free
    • Low maintenance requirement, high availability and long service life
    • Engineered Gas Schematic for achieving Service Continuity as per Customer Requirement and or as per IEC Standard
    • The thermo-dilatation and installation tolerances are compensated by expansion joints
    • Compact and optimal Bay footprint
  • 1 RATING UNIT 72.5KV GIS 145KV GIS 245KV GIS
    2 TYPE DESIGNATION   GT01 GT01 GAI3S
    3 APPLICABLE STANDARD   IEC62271-203    
    4 HIGHEST SYSTEM VOLTAGE kV 72.5 145 245
    5 RATED FREQUENCY Hz 50 50 50
    6 RATED NORMAL CURRENT A 3150 3150 4000
    7 RATED POWER FREQUENCY WITHSTAND VOLTAGE (1 min) kV 140 275 460
    8 RATED LIGHTNING IMPULSE WITHSTAND VOLTAGE kVp 325 650 1050
    9 RATED SHORT CIRCUIT kA 40 40 50
      BREAKING CURRENT (3 SEC)        
    10 RATED PEAK WITHSTAND CURRENT kAp 100 100 125
    11 RATED BREAK TIME ms 60 60 60
    12 AMBIENT TEMPERATURE ° C 40 40 40

  • ADVANTAGES

    • Less space Requirement
    • Compact design
    • More sustainable solution
    • Lower Maintenance
    • High Reliability
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