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Gas-insulated switchgear ELK-14 up to 300 kV

The modular GIS solution

The gas-insulated switchgear ELK-14 is a versatile solution for reliable energy supply up to a rated voltage of 300 kV, a rated normal current up to 4000 A and a rated short circuit current up to 63 kA. Based on a few building blocks, the modular design offers an outstanding level of flexibility for optimizing substation layouts, both in arrangement and technical features.


  • Power transmission
  • Integration of renewable power generation units to the grid
  • Industry applications

Why Hitachi Energy?

Brief performance data

GIS ELK-14  
Rated voltage [kV] 300
Rated frequency [Hz] 50/60
Rated short-duration power-frequency withstand voltage (1 min) [kV] 460
Rated lightning impulse withstand voltage (1.2/50 µs) [kV] 1,050
Rated switching impulse withstand voltage (250 / 2,500 µs) [kV] 850
Rated normal current – busbar / feeder [A] 4,000
Rated short circuit-breaking current [kA] 63
Rated short-time withstand current (up to 3 s) [kA] 63
Rated peak withstand current [kA] 170
Bay width [mm] 1,680
Ambient temperature range [°C] -30 … +40
Installation indoor / outdoor

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