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Operating characteristics of three-phase asynchronous motors

Operating characteristics of three-phase asynchronous motors

The working characteristics of three-phase asynchronous motors The working characteristics of asynchronous motors refer to the relationship between the rotation speed N, stator current I1, power factor cosφ1, electromagnetic torque T, efficiency η, etc. of the motor and the output power P2 under the condition of rated voltage and rated frequency operation, I .e. when U1 = UN,f = fN, n, I1, cosφ1, t, n = f(P2). Since the asynchronous motor is an AC motor, it is necessary to consider the power factor for the power grid. At the same time, due to the unilateral excitation, the excitation current and the load current coexist in the stator winding, so the stator current should be paid attention.

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