136. What is meant by the term «deadband» as it applies to prime mover speed control governors?

Deadband is the change in speed required before the governor will initiate a corrective action as the result of a load change.
Deadband is the repeated variation of speed due to under-control by the governor and a lack of governor power.
Deadband is the result of transient speed changes of a prime mover as the governor responds to load changes.
Deadband is the repeated and sometimes rhythmic variation of speed due to over-control by the governor.

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