METHOD OF DETERMINING INDUCTION MOTOR STATOR WINDING PHASE DISSIPATION AND DEVICE TO THIS END Russian patent published in 2011 - IPC G01R27/26 

FIELD: physics.

SUBSTANCE: constant voltage U₀ and stator winding current connected in three-phase circuit are measured. Stator winding is short-circuited with rotor stationary. Stator decaying current derivative (di₁/dt)_t=0 is measured at transition process beginning. Induction motor stator winding phase inductivity L_f=-k·U₀·(di₁/dt)^-1 _t=0 is calculated where k is factor defined by stator winding phase connection circuit. Device to implement said method is also covered by proposed invention.

EFFECT: expanded performances, easier measurement.

2 cl, 3 dwg