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THE MAGNETIC CORE
POLE PITCH AS THE MAIN SCALE PARAMETER
SCALING LAWS FOR CHARACTERISTIC MACHINE PARAMETERS
5 other sections not shown
a.c. machines a.c. motor airgap length airgap surface airgap winding cage resistance Chapter coils constant conventional supply conventional supply situation converter output converter supply situation corresponding cross-section current loading d.c. commutator machines electrical machines electromagnetic electronic converter end winding energy conversion frequency converter induction cage motors induction machines induction motor influence leakage inductance leakage reactance magnetic circuit magnetic induction magnetic iron magnetic potential main reactance number of poles number of slots parameters per-unit value permeance pole number pole pitch pole-pitch length power-electronic primary slot primary winding pulsation losses quotient radial rated slip relationship rotating rotor core rotor slot number rotor surface speed scaling law shaft short-circuited secondary winding skin effect slot effects slot leakage slot-pitch ratio slot-width slots per pole solid iron rotor standstill stator core supply frequency switching effects synchronous machines synchronous speed temperature rise torque two-pole machine type of short-circuited unit square voltage winding resistance