Why synchronous motor runs at a fixed speed?
what is the name of that fixed speed?
Answer Posted / navya.suryadevara
Synchronous motor works on magnetic locking principle.
When Ac supply connected to the stator of the synchronous
motor a rotating magnetic field will be produced in the
stator winding.
Dc supply is connected to the rotor of the synchronous motor
produces a field.
At the instant of stator field equal to rotor speed magnetic
locking obtained in the synchronous motor.
Because of this synchronous motor runs at fixed speed.
Fixed speed means synchronous speed which depends on the
number of poles and supply frequency.
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
Why does inductive loads consume KVARs?
What is a signal flow graph?
How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?
Is it possible to connect a safety device in to parallel?
Explain the working principle of Synchronous Generator and Assynchronous generator?
A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?
what is kvarh? Please define it With calculation General motors ?
WTA used cb?
If we have use two power cable for incomer, that time how many use cbct for earth leakage protection? 1 or 2 if 1 way? If 2 way?
How to calculate no of EARTH PIT? Describe the formula as per IS standard?
Define resonant frequency?
hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.
grr resistance & contrator malt continuous
Which type of DG need Netral Earthing?
how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.