Method for Starting a Hydraulic Turbine

The invention concerns a method for coupling to the grid a hydraulic unit having a synchronous generator, a runner, and wicket gates. The method includes a step of increasing the flow of water into the runner from a time tto a time tso that the rotation frequency of the rotor of the synchronous generator is, at time tequal to the frequency of the grid, and closing the circuit breaker at time t. A sub-interval from a time t2 to time t1 is defined, with t0