WebAnswer: When a synchronous motor is loaded then its rotor falls back in phase by the coupling angle ‘alpha’. As load is progressively increased, this angle also increases so as to produce more torque to cope with increasing load. If, now there is a sudden decrease in load then motor is immediatel... WebDec 4, 2024 · When a synchronous motor is used for driving a varying load, then a condition known as hunting occurs. Hunting is an objectionable characteristic of all synchronous motor, since it produces severe mechanical stresses as well as great variation in current and power taken by the motor. When a synchronous motor is loaded, it rotor falls back in ...
In a synchronous motor hunting occurs due to______. - Self Study …
WebP hys = Hysteresis losses; η = Hysteresis coefficient; B max = Maximum flux density; f = Supply frequency; V = Volume of the magnetic material; Eddy Current Loss: Eddy current loss occurs due to the current induced in the core of the synchronous motor. As we know, a varying magnetic field induces a current in a conductor and the core is made of iron which … WebDamage may occur to an AC motor if the supply voltage is varied more than (Blank) above or below the rated nameplate voltage 90% • Torque decreases when the voltage is lower than the rated voltage. With 95% of rated voltage, the torque is … imperative phoneme
Hunting in Synchronous Motor - Causes & Prevention - Electrical D…
WebThese are constant losses as the rotor speed is constant in a synchronous generator. There are two types of mechanical losses in an alternator. Friction Losses: In the alternator, friction losses occur in the bearings due to the friction between the rotating part and stationery body. It is given by. PFriction = k N. WebHunting in a synchronous motor cannot be due to A synchronous motor can develop synchronous torque A synchronous motor can be used as a synchronous capacitor when it is In case one phase of a three-phase synchronous motor is short-circuited the motor will A synchronous motor is running on a load with normal excitation. Now if the load on the ... WebJan 30, 2004 · synchronous frequency while it operates. This fluctuation occurs sinusoidally at a speed that is orders of magnitudes slower than the synchronous speed. This frequency variation about the desired synchronous speed is known as "hunting." A hunting motor may cause errors which could hinder system performance. The imperative peer to peer