Gas-insulated switchgear ELK-04 up to 170 kV
Modular solution for reliable energy supply
The gas-insulated switchgear ELK-04 is the ideal solution for reliable energy supply up to a rated voltage of 170 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 with standardized dimensions, its space saving and modular design offers a small footprint and easy operation at high performance ratings. The ELK-04 offers a high level of flexibility for optimizing substation layouts.
Applications
- Power transmission
- Integration of renewable power generation units to the grid
- Offshore and onshore wind power connections
Why Hitachi Energy?
- Compact footprint with short installation time
- Indoor and outdoor installation
- Monitoring, control, protection and communication features for smooth integration into digital substation systems using IEC 61850
Brief performance data
| GIS ELK-04 | ||
|---|---|---|
| Rated voltage [kV] | 145 | 170 |
| Rated frequency [Hz] | 50/60 |
|
| Rated short-duration power-frequency withstand voltage (1 min) [kV] | 275 | 325 |
| Rated lightning impulse withstand voltage (1.2/50 µs) [kV] | 650 | 750 |
| Rated normal current – busbar / feeder [A] | 3,150 | 4,000 |
| Rated short circuit-breaking current [kA] | 40 | 63 |
| Rated short-time withstand current (up to 3 s) [kA] | 40 | 63 |
| Rated peak withstand current [kA] | 104 | 164 |
| Bay width [mm] | 1,000 | 1,200 |
| Ambient temperature range [°C] | -30 … +40 | |
| Installation | indoor / outdoor | |
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