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1- List the advantages of using damper bars in synchronous machines? 2- Why synchronous generator used in steam turbine power station has rotor of

1- List the advantages of using damper bars in synchronous machines? 2- Why synchronous generator used in steam turbine power station has rotor of small diameter and high length other than that used in hydropower station? 3- Draw the circuit diagram of static excitation system for synchronous generator?

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