Reduction of core-end losses of dynamoelectric machines by using lower core loss iron silicon punching
First Claim
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1. A method of uprating electric machines including a stator core with stacked lamination packages, the method comprising:
- removing at least a last one of the stacked lamination packages at each end of the stator core; and
re-stacking the removed lamination packages with a lower core loss material.
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Abstract
Electric machines can be improved or uprated to reduce core-end losses using lower core loss material such as high grade iron silicon. A machine uprating entails removing at least a last one of the stacked lamination packages at each end of the stator core, and re-stacking the removed lamination packages with the lower core loss material.
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Citations
7 Claims
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1. A method of uprating electric machines including a stator core with stacked lamination packages, the method comprising:
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removing at least a last one of the stacked lamination packages at each end of the stator core; and
re-stacking the removed lamination packages with a lower core loss material. - View Dependent Claims (2, 3, 7)
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- 4. An electric machine comprising a stator having a stator core with stacked lamination packages, at least a last one of the stacked lamination packages at each end of the stator core comprising a lower core loss material than a remainder of the stacked lamination packages.
Specification