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emetor.org
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Definitions (40)
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stacking factor
The stacking factor is the ratio of electrical steel along the axial length of the iron core.
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phase voltage
Voltage across the phase winding.
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unbalanced winding
An unbalanced winding has a combination of number of poles and number of slots that does not allow to arrange the coils in such a way that they produce a symmetrical system of equally time-phase displaced emf's of identical magnitude, frequency, and waveform.
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advance angle
In a brushless DC (BLDC) machine, the advance angle defines the timing of the current commutation in relation to the rotor position.
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airgap diameter
Diameter from the middle of the airgap to the middle of the airgap on the opposite side
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airgap thickness
Distance between the rotor surface and stator surface
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average conductor length
Average length of a conductor including the length of the end-winding.
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coil span
The coil span is the distance between one conductor of a certain phase and the corresponding return conductor.
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concentrated winding
In Emetor, a winding is called concentrated winding when the number of slots per pole per phase is fractional and strictly lower than 1.
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conductor losses
Conductor losses result from Joule heating of electrical currents in the conductors of electrical machine windings.
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