Gas Insulated
Switchgear

  • Optimized GIS

    SF6 gas with excellent insulation and arc extinguishing properties allows installation in confined spaces

  • Securing high degree of reliability

    Closed structure of GIS is not affected by climate effects, anti-pollution, low electromagnetic wave

  • User friendly Design

    Compact design, easy installation, easy operation and monitoring, simple and systematic maintenance, long service life

HD Hyundai Electric entered the circuit breaker market in 1984, and has maintained its position as a domestic leader in the field for the past 30 years, supplying its products to 40 countries worldwide. Using the latest facilities and production systems in line withthe latest international standards, we have the capacity to produce Gas Insulated Switchgear up to 800 kV, the maximum rated voltage in Korea.

  • 72.5kV GIS
  • 145kV GIS
  • 170kV GIS
  • 245kV GIS
  • 362kV GIS
  • 420/550kV GIS
  • 800kV GIS
  • 72.5 SP
  • 72.5 SP
  • 72.5 SP
  • 72.5 SP
  • 170 SR
  • 170 SR(CB)
  • 362 SL
  • 362 SR
  • 362 SU

Product Specifications

  • 72.5 SP
    Rated voltage(kVrms) 72.5 Rated power-frequency withstand voltage(kVrms) 140
    Rated short-time withstand current(kArms) 20 Rated lightning impulse withstand voltage(kVpeak) 325
    Rated Current(Arms) 2000* Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 60 Rated gas pressure(MPa) 0.5/0.3
  • 72.5 SP
    Rated voltage(kVrms) 72.5 Rated power-frequency withstand voltage(kVrms) 140
    Rated short-time withstand current(kArms) 31.5 Rated lightning impulse withstand voltage(kVpeak) 325
    Rated Current(Arms) 2000* Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.6/0.4
  • 72.5 SP
    Rated voltage(kVrms) 72.5 Rated power-frequency withstand voltage(kVrms) 140/160
    Rated short-time withstand current(kArms) 31.5 Rated lightning impulse withstand voltage(kVpeak) 325/350
    Rated Current(Arms) 2000* Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.6/0.4
  • 72.5 SP
    Rated voltage(kVrms) 72.5 Rated power-frequency withstand voltage(kVrms) 140
    Rated short-time withstand current(kArms) 31.5 Rated lightning impulse withstand voltage(kVpeak) 325
    Rated Current(Arms) 2000* Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.6/0.4

Product Specifications

  • 145 SP-1 / 145 SP-3
    Rated voltage(kVrms) 145 Rated power-frequency withstand voltage(kVrms) 275
    Rated short-time withstand current(kArms) 40 Rated lightning impulse withstand voltage(kVpeak) 650
    Rated Current(Arms) 3,150 Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.6/0.4

Product Specifications

  • 170 SR
    Rated voltage(kVrms) 170 Rated power-frequency withstand voltage(kVrms) 325
    Rated short-time withstand current(kArms) up to 50 Rated lightning impulse withstand voltage(kVpeak) 750
    Rated Current(Arms) 2,000/
    3,000/
    4,000    		 Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.6/0.4
  • 170 SR(CB)
    Rated voltage(kVrms) 170 Rated power-frequency withstand voltage(kVrms) 325
    Rated short-time withstand current(kArms) 40 Rated lightning impulse withstand voltage(kVpeak) 750
    Rated Current(Arms) 2,000/3,150 Rated switching impulse withstand voltage(kVpeak) -
    Rated Frequency(Hz) 50 Rated gas pressure(MPa) 0.6/0.4

Product Specifications

  • 300 SR
    Rated voltage(kVrms) 245 Rated power-frequency withstand voltage(kVrms) 460
    Rated short-time withstand current(kArms) 50/63 Rated lightning impulse withstand voltage(kVpeak) 1,050
    Rated Current(Arms) 4,000 Rated switching impulse withstand voltage(kVpeak) 850
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.6/0.5

Product Specifications

  • 362 SL
    Rated voltage(kVrms) 362 Rated power-frequency withstand voltage(kVrms) 450
    Rated short-time withstand current(kArms) 40 Rated lightning impulse withstand voltage(kVpeak) 1,175
    Rated Current(Arms) 4,000 Rated switching impulse withstand voltage(kVpeak) 950
    Rated Frequency(Hz) 60 Rated gas pressure(MPa) 0.6/0.5
  • 362 SR
    Rated voltage(kVrms) 362 Rated power-frequency withstand voltage(kVrms) 450
    Rated short-time withstand current(kArms) 50 Rated lightning impulse withstand voltage(kVpeak) 1,175
    Rated Current(Arms) 4,000 Rated switching impulse withstand voltage(kVpeak) 950
    Rated Frequency(Hz) 60 Rated gas pressure(MPa) 0.6/0.5
  • 362 SU
    Rated voltage(kVrms) 362 Rated power-frequency withstand voltage(kVrms) 450
    Rated short-time withstand current(kArms) 63 Rated lightning impulse withstand voltage(kVpeak) 1,175
    Rated Current(Arms) 8,000 Rated switching impulse withstand voltage(kVpeak) 950
    Rated Frequency(Hz) 60 Rated gas pressure(MPa) 0.7/0.4, 0.5

Product Specifications

  • 550 SR
    Rated voltage(kVrms) 420/550 Rated power-frequency withstand voltage(kVrms) 650/710
    Rated short-time withstand current(kArms) 63 Rated lightning impulse withstand voltage(kVpeak) 1,425/1,550
    Rated Current(Arms) 4,000 Rated switching impulse withstand voltage(kVpeak) 1,050/1,175
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.7/0.45

Product Specifications

  • 800 SR
    Rated voltage(kVrms) 800 Rated power-frequency withstand voltage(kVrms) 830
    Rated short-time withstand current(kArms) 50 Rated lightning impulse withstand voltage(kVpeak) 2,250
    Rated Current(Arms) 8,000 Rated switching impulse withstand voltage(kVpeak) 1,425
    Rated Frequency(Hz) 50/60 Rated gas pressure(MPa) 0.7/0.4

Standards and Certification

All GIS products are certified by highly reliable international testing laboratories (KEMA, CESI, KERI, etc).

  • KEMA

  • CESI

  • KERI

Gallery

  • Ras Al Khair PP(Saudi Arabia) : 420kV 63kA 4000A

  • Kashang 245kV S/S(India) : 245kV 40kA 2000A

  • Mabella 132kV S/S(Oman) : 145kV 40kL 2000A

  • India Automobile Plant (India) : 245kV 125MVA TR

  • Cochrane CFPP(Chile) : 245kV 50kA 4000A

  • Shintaebaek(Korea) 765kV S/S : 800kV 50kA 8000A