Gross Head definition
Gross Head means the difference in elevation between the water levels of the upstream reservoir and the water level in the discharge chamber in case of Pelton turbine and tail race at the exit end of the draft tube in case of Francis and Kaplan turbines.
Gross Head means the difference in elevation between the water levels of upstream reservoir arid the center line of the turbine runner in case of Pelton turbine and tail race water level at the exit end of the draft tube in case of Francis and Kaplan turbine;