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Gas-insulated transmission line (GIL)

High-power transmission up to 6300 A

Hitachi ABB Power Grid's high standard of quality control and advanced R&D processes ensure superior product quality.

The outstanding product design expertise with project emulation and highly experienced engineers enable a best-in-class gas-insulated line to customers worldwide.

GIL offers can be customized to project requirements related to temperature variations, ensuring proper foundations or solving vibration challenges due to multiple factors (e.g. transformer connection, cross-railway etc.)

 

Applications

  • Urban areas
  • Intercity connection
  • Power plants
  • Onshore wind power

 

Why Hitachi ABB Power Grids?

  • Hitachi ABB is the pioneer in GIS technology with 50 years of proven experience
  • Worldwide footprint and service network
  • World leader through continuous research and development (R&D)
  • Provider of highly reliable, smart, compact and economic solutions to complex switchgear applications
  • Suitable for areas with high seismic activities due to low center of gravity

 

Brief performance data

GIL up to 1100 kV            
Rated voltage [kV] 252 300 420 550 800 1100
Rated current [A] 3150 4000 400 /5000 4000 / 5000 / 6300 6300 6300
Rated frequency [Hz] 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60
Rated power-frequency withstand voltage [kV] 460 460 650 740 960 1200
Rated lightning impulse withstand voltage [kV] 1050 1050 1425 1675 2100 2400
Rated switching impulse withstand voltage [kV] N/A 850 1050 1300 1550 1980
Rated short-time withstand current (3 s) [kA] 50 63 63 63 63 63
Rated peak withstand current [kA] 135 171 171 171 171 171
Encapsulation single-phase single-phase single-phase single-phase single-phase single-phase
Partial discharge [pC] ≤5 ≤5 ≤5 ≤5 ≤5 ≤5
Rated filling pressure (20 °C, abs) [kPa] 650 530 530 460 / 680 520 460
Minimum functional pressure (20 °C, abs) [kPa] 600 450 450 390 / 600 450 390
Type tested SF6-gas leakage rate [%/year] 0.1 0.1 0.1 0.1 0.1 0.1
Ambient temperature [°C] -30 … +40  -30 … +40  -30 … +40  -30 … +40  -30 … +40  -30 … +40 

Downloads for Gas-insulated transmission line

Gas-insulated transmission line

8-pages, product brochure

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