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What will happen to speed-torque characteristics of an induction motor is the rotor resistance is increased?
If Rotor resistance is increased torque is increased
What is the torque speed characteristic?
the ratio of the relative speed of stator magnetic field with the speed of rotor, to the speed of rotor is defined as slip. where as in torque slip characteristic is the graph between the speed of the rotor and the torque experienced on the rotor. in the case of induction motor, the torque decreases with the increase in the rotors speed. while in the case of sychronous motor, its different (you check out, because i just forgot about it!! keep smiling!
Why rotor contactor in external resistance of slipring motor connected in delta?
rotor contactor are used to cut the resistance in slip-ring motor connected through resistance box. resistance is proportional to torque. so by controlling rotor contactor resistance can be controlled and hence torque can be controlled. for more information check torque and speed characteristic of wound motor.
Why induction motor current increase when load increase?
The slip is proportional to the load torque in an induction motor. This can also be seen as a reduction in speed causing extra current to be induced in the rotor to supply the increased torque.
What is the use of double cage rotor in induction motor?
to obtain high starting torque
What is the function of anti-torque rotor of a helicopter?
To counteract the force of torque created by the main rotor. If not for that tail rotor, the torque would cause the helicopter to spin continuously around.
What will happen to speed-torque characteristics of an induction motor is the rotor resistance is increased?
If Rotor resistance is increased torque is increased
What is the mechanism used to minimize torque in tricopter?
A small tilt is applied to one rotor to counteract yaw from unbalanced rotor torque
How much torque does tail rotor needs to work?
The amount of torque required by a tail rotor depends on factors such as the size and weight of the helicopter, the speed at which it's flying, and external forces like wind. Generally, tail rotors are designed to provide enough torque to counteract the torque produced by the main rotor and maintain stable flight.
What is the torque speed characteristic?
the ratio of the relative speed of stator magnetic field with the speed of rotor, to the speed of rotor is defined as slip. where as in torque slip characteristic is the graph between the speed of the rotor and the torque experienced on the rotor. in the case of induction motor, the torque decreases with the increase in the rotors speed. while in the case of sychronous motor, its different (you check out, because i just forgot about it!! keep smiling!
Pull-out torque of induction motor?
The pullout torque is the maximum torque a motor can achieve. Also known as breakdown or peak torque. It occurs at the point where, the increase in the rotor current is exactly balanced by the decrease in the rotor power factor.
Why almost all helicopters have a small tail rotor at the back?
when the main blade rotates it creates torque and if that torque is not countered by the rear rotor the helicopter will spin out and crash. the helicopters that do not have a rear rotor have another rotor that is the same size moving in the opposite direction
What are something that cancels torque in a helicopter?
tail rotor compensates for torque when you lose tail rotor they go into auto rotation mode/ thcopter spins with rotors ouch
What cancels torque?
The tail rotor cancels out torque in a helicopter generated by its engines and main rotor. Without this, the helicopter would simply spin in a circle and be complete uncontrollable.
Why rotor rotate?
Torque is generated from power sources and rotate rotor
Why will the rotor of a wound-rotor motor not turn if the rotor circuit is left open with no resistance connected to it?
Because there is no current flowing in the rotor, and thus there is no magnetic field in the rotor, and thus there is no torque between the rotor and the field.
Harley Davidson torque specs?
2010 Harley davidson Street glide rotor torque specs
