2X200KW Pelton Turbine Hydraulic Electric Generator
Unlike other types of turbines which are reaction turbines, the Pelton turbine is known as an impulse turbine. This simply means that instead of moving as a result of a reaction force, water creates some impulse on the turbine to get it to move.
When used for generating electricity, there is usually a water reservoir located at some height above the Pelton turbine. The water then flows through the penstock to specialized nozzles that introduce pressurized water to the turbine. To prevent irregularities in pressure, the penstock is fitted with a surge tank that absorbs sudden fluctuations in water that could alter the pressure.
The following picture shows 2x200kw hydraulic station upgraded by Forster in China. Forster has replaced a brand-new hydraulic turbine, generator and control system, and the output power of a single unit has been increased from 150KW to 200kW.
Specifications of the 2X200KW Pelton Hydraulic Electric Generator
| Rated Head | 103(meters) |
| Rated Flow | 0.25(m³/s) |
| Efficiency | 93.5(%) |
| Output | 2X200(KW) |
| Voltage | 400 (V) |
| Current | 361(A) |
| Frequency | 50 or 60(Hz) |
| Rotary Speed | 500(RPM) |
| Phase | Three(Phase) |
| Altitude | ≤3000(meters) |
| Protection Grade | IP44 |
| Temperature | －25～＋50℃ |
| Relative Humidity | ≤90% |
| Connection Method | Straight League |
| Safety Protection | Short circuit Protection |
| Insulation Protection | |
| Over Load Protection | |
| Grounding Fault Protection | |
| Packing Material | Standard wooden box fixed with steel frame |
Advantages of Pelton Turbine Generator
1. Adapt to the situation that the ratio of flow and head is relatively small.
2. The weighted average efficiency is very high, and it has high efficiency in the whole operation range. In particular, the advanced Pelton turbine can achieve an average efficiency of more than 91% in the load range of 30% ~ 110%.
3. Strong adaptability to head change
4. It is also very suitable for those with large ratio of pipeline to head.
5. Small amount of excavation.
Using Pelton turbine for power generation, the output range can be from 50KW to 500MW, which can be applicable to the large head range of 30m to 3000m, especially in the high head range. Other types of turbines are not applicable, and there is no need to build dams and downstream draft tubes. The construction cost is only a fraction of that of other types of water turbine generator units, which has little impact on the natural environment.
