Abbreviations and Symbols
A | linear current density, [A/m] |
A | magnetic vector potential, [Vs/m] |
A | magnetic vector potential scalar value, [Vs/m] |
A | temperature class 105 °C |
AC | alternating current |
AM | asynchronous machine |
A1-A2 | armature winding of a DC machine |
A1n, A2n, A3n | factors for defining permanent magnet flux density |
a | number of parallel paths in windings without commutator: per phase, in windings with a commutator: per half armature, diffusivity |
B | magnetic flux density, vector [Vs/m2], [T] |
B | magnetic flux density scalar value, [Vs/m2] |
Br | remanent flux density, [T] |
Bsat | saturation flux density, [T] |
B | temperature class 130 °C |
B1-B2 | commutating pole winding of a DC machine |
b | width, [m] |
b0c | conductor width [m] |
bc | conductor width [m] |
bd | tooth width, [m] |
bdr | rotor tooth width, [m] |
bds | stator tooth width, [m] |
br | rotor slot width, [m] |
bs | stator slot width, [m] |
b0 | slot opening, [m] |
bv | width of ventilation duct, [m] |
C | capacitance, [F], machine constant, integration constant, fabrication cost, [€] |
C | temperature class >180 °C |
C1-C2 | compensating winding of a DC machine |
Cf | friction coefficient |
CM | torque coefficient |
Cs | saving cost per year, [€/a] |
c | specific heat capacity, [J/kgK], capacitance per unit of length, factor, divider, constant |
Cdiff | increase of the purchase cost, [€] |
ce | energy cost, [€/kWh] |
cp | specific heat capacity of air in constant pressure |
Cpw | cost per one kilowatt of loss over the life of motor, [€/kW] ... |
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