Matsayin Yadda ake Nuna Zafi na Turanci a kan Motorin Induction

A cikin takaitu da aka rubuta "Torque Equation of an Induction Motor", muna tabbatar da zan iya nemi da kyau kuma tushen bayanin. Yanzu, za mu fada don Maximum Torque Condition na induction motor. Alamar da ya faruwa a cikin induction motor yana kan abubuwa uku: hanyar da mutane da suka shiga rotor, tashin da ke faruwa bayan rotor da magnetic flux na motor, da kuma power factor na rotor. Tushen bayanin da ya faruwa a lokacin da motor ya yi aiki shi ne:

Phase angle na total impedance na RC network yana kan rage daga 0° zuwa 90°. Impedance na nufin halin da wurare ta aiki ta ba da flow of current. Idan an sanar da stator winding da ya fi tsawo, don supply voltage V1, E20 yana cikin yadda ake bani.

Alamar da ya faruwa zai samu maximum value idan an sanya right-hand side na Equation (4) ta maxima. Wannan zai faruwa idan balakar denominator, kamar yadda ake bayyana, ana sama da zero.

Let，

Saboda haka, alamar da ya faruwa ya samu maximum value idan rotor resistance per phase ana sama da rotor reactance per phase a lokacin da motor ya faru. Substituting sX₂₀ = R₂ into Equation (1) yields the expression for the maximum torque.

Tushen bayanin da aka bayyana yana nuna cewa magnitude na maximum torque bai maye da rotor resistance ba.

Idan sM yana nuna slip value na maximum torque, then from Equation (5):

Saboda haka, rotor speed a lokacin da maximum torque yana cikin tushen bayanin da aka bayyana:

Daga Equation (7) za su iya samun bayanai masu ma'ana game da maximum torque:

• Independence from Rotor Resistance: Magnitude na maximum torque bai maye da rotor circuit resistance ba.

• Inverse Proportionality to Rotor Reactance: Maximum torque yana vary inversely with standstill reactance X20 na rotor. Saboda haka, don in maxima torque, X20 (da kuma rotor inductance) yana da kyau a minima.

• Adjustability via Rotor Resistance: By adjusting the resistance in the rotor circuit, maximum torque can be achieved at any target slip or speed. This is determined by the rotor resistance at the slip sM = R2/X20.

• Rotor Resistance Requirement for Different Conditions:

• Don in maxima torque a lokacin da motor ya zama, rotor resistance yana da kyau da kuma ana sama da X20.

• Don in maxima torque a lokacin da motor ya faru, rotor resistance yana da kyau a minima.