Calculation method for water flow quantity of branch paths of generator rotor winding

The present invention relates to a calculation method for the water flow quantity of branch paths of a generator rotor winding. The method comprises the following steps: firstly, a water resistance model is established, the element water resistance R4 of each branch path of a rotor winding water path in the model is in offset parallel connection, other element water resistances are in parallel connection, then a total hydraulic head P of the rotor water path is calculated and obtained, whereafter the Reynolds number Re2 of a hollow conducting wire of the rotor and the resistance value of each element water resistance in the water resistance model are calculated, and finally, m equations are obtained by a formula and are solved so as to obtain the water quantity of each generator rotor winding branch path. The calculation method for the water flow quantity of branch paths of a generator rotor winding provided by the present invention has the advantages that the actual connection of the water paths can be truly