Transcription of CHAPTER- 9 HYDRO GENERATOR, CHARACTERISTICS …
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CHAPTER- 9 HYDRO GENERATOR, CHARACTERISTICS …
209 chapter - 9 HYDRO GENERATOR, CHARACTERISTICS AND PERFORMANCE GENERAL The electric generator converts the mechanical energy of the turbine into electrical energy. The two major components of the generator are the rotor and the stator. The rotor is the rotating assembly to which the mechanical torque of the turbine shaft is applied. By magnetizing or exciting the rotor, a voltage is induced in the stationary component, the stator. The principal control mechanism of the generator is the exciter-regulator which sets and stabilizes the output voltage.
emergency duty imposed on a generator because of power system faults. Sudden short circuit at the generator terminals: A generator should be capable of withstanding, without injury, a 30 second, 3 phase short circuit at its terminals when operating at rated MVA and power factor and at 5% over voltage, with fixed excitation.
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