The load angle of a synchronous motor at no load is definitively 0 degrees. This conclusion arises from the fact that active power is proportional to the sine of the load angle; with no load present, there is no active power, resulting in a zero load angle. Additionally, the rotor's magnetic field aligns with the stator's resultant magnetic field under these conditions, confirming that both fields are in alignment.
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Yes. Active power is proportional to the sine of the load angle. No load, no active power, hence zero load angle.rob1985 said:
No. You can say rotor magnetic field and stator magnetic field are aligned, or in other words, rotor is aligned with the resultant magnetic field.rob1985 said: