Important functions of damper winding in a synchronous motor:
- The oscillatory motion of the rotor about the operating point is considerably reduced
in amplitude and rotor quickly returns to the steady position.
- Providing starting torque like an induction motor.
- At starting, the rotor achieves a speed close to synchronous speed and the rotor and
stator fields lock into each other as soon as field excitation is switched on.
Various applications of synchronous motor :
- It is capable of being operated under a wide range of power factors, both lagging and
leading. Hence, it can be used for power factor correction purpose.
- In textile industry high speed drives are necessary with wide range of control.
Variable frequency drives with synchronous motors are used for speed control.
- In chemical industry, rubber industry and petrochemical industry, many processes
require compressor drives in which direct coupled synchronous motors supplied by
frequency converters are used.
- An artificial fibre plant needs variable frequency synchronous motor and are supplied
by static frequency converters.
- Synchronous motor is also useful for voltage regulation
gregorymasila answered the question on February 22, 2018 at 16:33
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