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Why is hot start and cold start term used in 3 phase induction motors?
Wiki User
∙ 14y ago
In a 3 phase induction motor, particularly the larger units, hot start and cold start refer to the temperature of the motor when starting. Hot start is usually a restart after coasting to a stop. Cold start is an initial start, after not having run for a relatively long period of time. This is important because there is usually a limit on the number of hot starts that are allowed in a certain period of time. This is due to the fact that these motors pull more current starting than when they run, and if you start them too often they can overheat.
Wiki User
∙ 14y ago
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