Hongya Power Generating Equipment To Utilities Limited  

Product Name: Double Nozzles Pelton Turbine Generator for Micro Hydro Generator Model NO.: CJA475-W-105/2X11 Output Type: AC Three Phase Runner Diameter: 0.32-4m Runner Material: VOD Zg0cr13ni4mo Water Head: --1000m Service Life: 30-50years Certificate: ISO, TUV, BV, SGS Warranty: One Year Trademark: WAWUSHAN Transport Package: Standard Chinese Exporting Package Specification: SGS, ISO, TUv, BV Origin: Sichuan, China HS Code: 85023900 Product Description APelton turbineorPelton wheelis a type ofturbineused frequently inhydroelectric plants. These turbines are generally used for sites withheadsgreater than 300meters. This type of turbine was created during the gold rush in 1880 by Lester Pelton.When used forgenerating electricity, there is usually a waterreservoirlocated at some height above the Pelton turbine. Thewaterthen flows through thepenstockto specialized nozzles that introduce pressurized water to the turbine. To prevent irregularities inpressure, the penstock is fitted with a surge tank that absorbs sudden fluctuations in water that could alter the pressure.Unlike other types of turbines which arereaction turbines, the Pelton turbine is known as animpulse turbine. This simply means that instead of moving as a result of a reactionforce, water creates some impulse on the turbine to get it to move.Pelton turbine is used in the hydroelectric power plant where the water available at high head i.e. 150 m to 2000 m or even more. In hydroelectric power plant it is used to drive the generator attached to it and the generator generates the mechanical energy of the turbine into electrical energy.This is all about the Pelton turbine working, main parts, application with diagramtypewater headinstall capacityFrancis turbine20-300M50KW-20MWPelton turbine80-1000M50KW-20MWkaplant turbine3-45M50KW-10MWTurgo turbine30-400M50KW-10MWThe operation of a Pelton turbine is fairly simple. In this type of turbine, highspeedjets of water emerge from the nozzles that surround the turbine. These nozzles are arranged so the water jet will hit the buckets atsplitters, the center of the bucket where the water jet is divided into two streams. The two separate streams then flow along the inner curve of the bucket and leave in the opposite direction that it came in. This change in momentum of the water creates an impulse on the blades of the turbine, generatingtorqueand rotation in the turbine.[3]The high speed water jets are created by pushing high pressure water (such as water falling from high heads) through nozzles at atmospheric pressure. The maximum output is obtained from a Pelton turbine when the impulse obtained by the blades is maximum, meaning that the water stream is deflected exactly opposite to the direction at which it strikes the buckets at. As well, theefficiencyof these wheels is highest when the speed of the movement of the cups is half of the speed of the water jet.