500m Water Head 2m3/S 7500kw Pelton Impulse Turbine

Francis Hydro Turbine

Quick detail

The Pelton turbine extracts energy from the impulse of moving water, as opposed to reactive turbines such as the Francis turbine. Water passes through a nozzle(s) and strikes the buckets arranged on the periphery of a runner which causes the runner to rotate, producing mechanical energy. The buckets were designed so that when the rim runs at half the speed of the water jet, the water leaves the runner with very little speed, extracting almost all of its energy, and allowing for a very efficient turbine. The Pelton turbine can be controlled by adjusting the flow of water to the bucket by use of a deflector.

Applicable Range Head: 30-500m Flow: 0.015-2m³/s

Feature

1. A very flat efficiency curve under varying load; efficiency remains high in low flow conditions.
2. The number of nozzles can be increased to raise efficiency. (up to 6 nozzles)
3. Generator cost are higher since its rotational frequency is quite low. (speed increaser is usually necessary)

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