28 views
asked by
Kramer Drive System

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

2 Answers

+1 vote
answered by
 
Best answer

Kramer Drive System

image

image

image

image

image

image

image

image

image

image

image

image

image

image

image

image

0 votes
answered by

Kramer Drive System

• Kramer drive is a rotor side speed control drive of induction motor.

• Slip is the difference between synchronous speed and rotor speed.

• It is the method for saving slip power loss in rotor by returning power back to the line.

• It convert the slip power into AC power and return back to line.

• Constant power control is obtained by this method.

• This method control the speed of induction motor by injecting the opposite phase voltage in the rotor.

• It consists of wound rotor induction motor, smoothing reactor, 6 pulse bridge, and DC motor.

• By varying the field current of DC motor speed control is obtained.

• The induction motor and DC motor is mechanically coupled the same shaft.

• If less speed range is required then diode bridge can also be use in place of thyristor bridge.

• Thyristor bridge is use for more speed range control.

• Output torque supplied to the load is the sum of torque of induction motor and DC motor.

• The static Kramer drive is costlier because of the cost of DC motor.

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.

...