If the driving torque, such as that produced...

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Question 1 of 205eccefa4bacbc34ba4d48183

If the driving torque, such as that produced by a diesel engine, creates pulsations when coupled with a synchronous generator operating in parallel, the generator rotor may be periodically pulled ahead or behind its normal position as it rotates. How can this condition called hunting be reduced?

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🔍 Key Concepts

• Synchronous generator rotor position relative to the rotating magnetic field • Mechanical torque pulsations from diesel engines and their effect on generator stability • Methods used in synchronous machines to damp oscillations or speed fluctuations

💭 Think About

• Which component or control feature in a synchronous generator is specifically intended to damp out rotor oscillations rather than change the steady-state speed setting? • How does changing governor speed droop affect load sharing between generators versus short-term oscillations in rotor position? • Think about which option adds electrical/mechanical damping to the rotor and which options mainly affect speed/load control.

✅ Before You Answer

• Identify which choice is a physical feature of the generator itself, not a governor setting or coupling method. • Consider which method provides damping of oscillations rather than just changing average speed or stiffness of the drive. • Verify which option is commonly associated with preventing or reducing hunting in synchronous machines in marine power systems.

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