At what speed does the emergency overspeed governor operate?

Study for the Massachusetts 3rd Class Engineer Exam. Access flashcards and multiple choice questions with hints and explanations. Prepare for success on your exam!

The emergency overspeed governor is designed to activate at a speed threshold that is exceeding the normal operational limits of the equipment it is monitoring. Specifically, it typically operates at 110% of the rated speed. This threshold ensures that if the machinery reaches this speed, the governor will engage to prevent potential damage, mechanical failure, or safety hazards associated with overspeed conditions. By activating at 110% of the rated speed, the emergency overspeed governor provides a critical safety mechanism, giving operators and systems ample warning and reaction time to address any operational anomalies before reaching dangerously high speeds.

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