Tidal Turbine Generator
Largest turbine generates power using seawater during high tide.
| Method | Single-flow flood tide Generates twice daily using high tide water levels |
|---|---|
| Turbine | 25.4MW × 10 |
| Type | Horizontal-axis bulb Kaplan turbine 3-phase synchronous generator (112 poles) |
| Diameter | Φ7.5m (3 blades) |
| Flow | 482.13 m³/sec |
| Speed | 64.29 RPM |
| Head | Max 7.50m, Rated 5.82m, Min 1.00m |
| Turbine | Generates rotation from seawater flow |
|---|---|
| Shaft | Transfers turbine rotation to rotor |
| Rotor | Rotates with magnetic poles (N, S) |
| Stator | Fixed part where electricity is induced |
| Bulb Case | Supports turbine load and inspection |
| Bulb Nose | Inspection space |
Tidal Sluice Gates
Operate twice daily, releasing Sihwa Lake water to the sea.
| Sluice | 15.3m × 12m × 8 gates |
|---|---|
| Circulation | 147M m³/day (50% of capacity) |
| Type | Roller Gate |
| Specs | Width 15.3m × Height 12m |
| Hoist | Wire rope winch, 220 tons |
| Stoplog | 5 sets (sluices/turbines) |