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Assuming a shunt-fed motor, it means the rotor would stop generating a back-emf and it would also stop generating any torque. The current would rise until limited by the resistance of the rotor, but before that the circuit-breaker would operate.
What else can I help you with?
What will happen when running DC motor's field will open?
speed will increase
What is the effect of field current on dc motor?
The field current of a dc motor provides the magnetic field that allows the motor to develop a torque when current flows through the armature..
Why you have to connect DC supply to the induction motor?
To start an induction motor we have to excite field. The excitation is done by connecting the DC supply to the field winding's.
What happen if the field of the DC motor is opened?
Assuming a shunt-fed motor, it means the rotor would stop generating a back-emf and it would also stop generating any torque. The current would rise until limited by the resistance of the rotor, but before that the circuit-breaker would operate.
What is three point dc shunt motor starter?
L , F and A L - Line (connected to Supply) F - Field (connected to field of dc motor) A - Armature (connected to armature of DC motor) that's y it is called 3 point
How does the starting of synchronous motor using dc generator as a load work-?
Starting of the synchronous motor using the DC generator creates a magnetic field.
Why dc supply is being used in studying the effect of temperature on the field winding resistance of a dc motor?
Because tests on a dc motor are always done using dc.
What happens if field winding of a running dc shunt motor suddenly breaks open?
when the field winding of a running dc shunt motor suddenly breaks open the motor fails to run because in the motor the stationary winding is armature and rotatory is field winding
If you crank the shaft of a dc motor manually will the motor become a dc generator?
It depends on both the wiring of the motor and what if any residual magnetic field remains in the field windings. If there is some residual field, you will get some volts, but not many. If the motor has permanent magnets, it is effectively a dynamo.
What are the Difference between dc motor and dc generator?
a motor Will do work by consuming power a generator is just the opposite
What type of dc motor has its field winding in parallel with its armature windings?
Shunt Motor
What happens to d.c motor when Field is weakened in DC?
when the field winding of dc motor opens the flux is zero so the speed is inversely propotional to speed ,so motor runs at dangerous speed...........
