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Impulse (Pelton) Turbine generator Unit
Category: Power generation equipment
Working Brief
The Pelton (scoop-type) hydro-generator unit is a type of impulse hydroelectric unit. It features a single-unit output ranging from 50 kW to 500 MW and is applicable to a wide head span of 30 to 3,000 meters, making it perfectly suited for high-head, medium-to-low flow diversion-type hydropower stations.The turbine runner operates in a runner chamber under atmospheric pressure. Therefore, it does not require the construction of pressurized flow passages or high-pressure sealing structures, nor does it need a downstream draft tube. Consequently, the civil works investment is only a fraction of that required for other types of turbine units, resulting in minimal disturbance to the natural ecological environment.Our website provides a complete technical parameter table for the CJ22 series, covering head, flow rate, rotational speed, output, and efficiency, as well as the matching models for the generator, governor, and valves. We also support customized selection and complete package supply for your projects.
Working principle
High-pressure water passes through nozzles, converting pressure energy entirely into kinetic energy of high-speed jet. High-speed water jet strikes buckets on runner to drive runner rotation, converting water kinetic energy into mechanical energy to drive synchronous generator for power generation. Jet flow is regulated by nozzle needle to control unit output; deflector is equipped for emergency load-rejection protection. The runner operates under atmospheric pressure; spent water falls away freely after doing work.
Technical Features
1.Extremely wide applicable net-head range (30-3000 m), suitable for various high-head diversion-type hydropower stations; unit output covers 50 kW ~ 500 MW;
2.Runner chamber operates under atmospheric pressure; no pressurized closed flow-passage and no draft-tube required, greatly reducing civil-work quantity and construction cost;
3.Minor impact on ecological environment; suitable for dam-free / low-dam diversion-type hydropower development;
4.Flow regulation via nozzle-needle assembly plus deflector protection for safe and reliable operation;
5.Standardized CJ22-series parameters with matched turbine, generator, governor and valves; custom design available per site working conditions.
| IEC / International Standard Term |
| Pelton (Impulse) Turbine generator Unit |
| Nozzle |
| Nozzle needle |
| Bucket |
| Deflector |
| Runner chamber |
| Diversion-type hydropower station |
Keywords:
Impulse (Pelton) Turbine generator Unit Power generation equipment
Impulse (Pelton) Turbine generator Unit
Power generation equipmentMetallurgical and mining equipmentEnvironmental protection equipment
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