Environmental Engineering Reference
In-Depth Information
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Operation at constant flux. The induced voltage is roughly proportional to the
speed, and maximum generator power is obtained at rated current.
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Operation at maximum efficiency. This is the case when constant losses and load
dependent losses are equal. In this mode the relation between voltage and speed is
non-linear. Note that standard induction machines are designed to have maximum
efficiency around 80% of rated load.
Normally the constant flux concept is preferred, because of larger energy output.
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