What are the advantages of Pelton for very high heads ? What are the disadvantages of low speed reaction turbine for the same conditions ? What effects the efficiency of a reaction turbine on...

What are the advantages of Pelton for very high heads ? What are the disadvantages of low speed reaction turbine for the same conditions ?

What effects the efficiency of a reaction turbine on part-load ? Is the part load efficiency is a function of specific speed ?

What factors are considered in selecting a prime-mover for a hydro-electric power plant ?