0
Why generator rotor speed reduces when load in the grid is increased?
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
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
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.
Why current will reduces after motor runs in constant?
Because the slip angle between magnetic fields decreases as the rotor comes up to speed.
Why do you use induction generators in wind generation rather than synchronous generators?
If you use synchronous generator... you need rotor to rotate always in synchronous speed... practically it s not possible always to produce that speed by air flow... Air flow always varies...But using induction generator, you need to get speed to make slip as positive value.. it is always possible...so induction generator is best one..
What are the functions of slip ring carbon brush external resistor in an alternalting EMF generator?
good question the use of slipring carbon brush is to give excitement to the generator , as the carbon brosh contact the rotor slip the rotaion and the speed of the generator increases we can say as an external force by anonrafee blueroz_27@yahoo.com
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 are the indications and causes of overloades generator?
The speed and terminal voltage drastically reduces
Why speed of the induction motor falls when load is increased?
As the load increases, the speed reduces to deliver the increased torque required.
How does the helicopter fly up and down?
The main rotor speed is reduced or increased
How does EGT and gas generator speed in a free power turbine with a constant speed propeller behave when power setting is increased?
I.The gas generator speed increases. II. The EGT increases
What causes of generator bearing vibration?
Bowing of the rotor from high speed-high heat conditions at peak operation.
Difference between induction motor and induction generator?
in case of induction motor the rotor speed is less than synchronous speed giving positive slip but in case of generator the rptor speed is greater than synchronous speed giving negative slip.......
How do you raise generator voltage?
A generator's terminal voltage can be raised by increasing the field current. This will result in an increased load on the generator, which will slow it down unless the governor kicks in to keep the generator at speed.
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 happens if input to a generator is increased where it is synchronised to a powergrid whose Mw is fixed?
When input to generator increased when it is synchronised, speed of alternator get disturbed which inturn leads to the change in frequency,when frequency gets change synchronization is no long.
Why current will reduces after motor runs in constant?
Because the slip angle between magnetic fields decreases as the rotor comes up to speed.
How does a wind tubine work?
Think of a motor, A generator is basically the oppisite. Wind turns a rotor, ( the thing the blades are bolted to) rotor turns a gearbox ( which increases speed and decreaces torque) now a high speed shaft is connected to a generator to pruduce electicity and sent to a frequincy convertor to match power grid (too complicated to explain) there it is in a nut shell.
