What is Difference Between Induction Motor & Servo Motor
- 31 Answers
- 96717 Views
- Jindal, Kirloskar, KTTM, Star Technocrates, Toyota, I also Faced
- E-Mail Answers
Answer Posted / vedvart sharma
Servo motors is used to control speed systems. It varies the field current applied to the generator which in turn controls the speed of the motor connected. Induction motor will work on synchronous speed.
Servo motor-closed loop system where as induction motor is an open loop system.
An induction motor has high inertia and servo motor has a very low inertia. Hence servo motors are used in applications where instant and accurate positioning of load is reqd.
Speed is constant in servo motor.
As in induction motor stator is formed by coils while in servo motor stator is formed with permanent magnet. So in induction motor very high inertia is there while in servo inertia is low. Due to that servo is very easy to stop at instant. So it is used in position control while in application where at instant position stop is not required induction motor is used.
The motors are selected according to the torque requirement and based on the application, for normal industrial application Induction motors are economical. For some application which requires high torque, positioning and breaking control, we can use servo motor. Servo needs and drive package and requires lengthy program.
Servo motor is actual normal ac induction motor with added feature as 1) Low inertia rotor 2) high torque break and 3) inbuilt encoder for speed and position feedback. All this components combine work with servo drive.
Induction motor has a high inertia whereas servo motor has a low inertia due to we stop it at any instant. Servo motor has a high starting torque and has a capability to break that torque at any instant, whereas induction motor have a low starting torque and we cannot stop it any exact position due to high inertia. Accuracy of servo motor is more than induction motor but it is expensive. Generally servo motor is to be use where we required a high starting torque with small displacement. If the servo motor connect with Servo drive then we needs a 24 volt dc supply to execute or drive.
The Only Difference between servo motor and Induction motor is that servo motor and drive makes a fully closed loop because of built in encoder with servo motor, but we can make a closed loop system with induction motor by putting an external encoder still there is one addition with servo motor is that servo motor have permanent magnets which gives better accuracy than simple induction motor
Servo motor has two rotations which are not possible in Induction motor
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what is the effect of higher value of GD???
what is the necessity of under ground cables ??
What kind of maintenance is conducted for Transformer
If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?
What is George phenomena to start the synchronus machine?
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
Can anyone provide with a SLD for HT panel installation for a 33KV line and distribution end has three 1.5MV transformers. Is it suitable to use OCB or VCB and also provide me the suitable rating and its connection diagram.
what is mean by transition resistance of transformer?
What are the different methodes for calculating the short circuit Current?
If I want to lift the water at a height 50m from ground level through two inch(diameter) metal pipe then what is the capacity of motor pump is required? is it possible in single phase supply or not?
wat is d diffr btw shunt coil and trip coil in VCB?
what are the available sizes of pin type terminal lugs in the market today?
Dear Respected sir how to test ABB REX521 protection relay by relay tester.
what is proper capacitor placement? How to evaluate capacitor size?
mention hazard experienced during installation
