Electrical characteristics concerning the driving motor (three-phase)
U : Principal conductor voltage : V I : Principal conductor power : A cosfi : Power factor as decimal : η : Yield of the engine as decimal : R : Resistance : ohm Pdel : Force : Pabs : Force : W ΔT : Temperature increase of the coiling : K Rw : Frictional resistance : Ω Rk : Frictional resistance : Ω δk : Temperature of the coiling : °C