WELCOME

ENERGY EFFICIENT MOTORS

Presented by M.jagadeesh

CONTENTS What is energy efficient motor(EEM) ? Difference between standard motor and energy

efficient motor Need of an energy efficient motors Efficiency Maintenance Applications Advantages and disadvantages Conclusion

WHAT IS ENERGY EFFICIENT MOTOR? An "energy efficient" motor, simply put, is a motor

that gives you the same output strength by consuming lesser amounts of power

EXPERIMENTAL RESULTS

Type of motor Annual Consumption of energy in kwh

Standard motors 870

Energy efficient motors 804.59

DIFFERENCE BETWEEN STANDARD MOTOR AND ENERGY EFFICIENT MOTOR

More copper in the windings.

Reduced fan loses.

Energy efficient motors operate with efficiencies that are typically 2-6% higher than standard motors.

NEED:

When there is a new installation or modification to your plant.

Old motors are damaged and need rewinding.

Existing motors are underloaded or overloaded.

Protecting other devices.

EFFICIENCY

LOSSES :

Losses are primarily of two types i.e. core and copper losses.

Copper loss Core loss Friction and windage

Loss Stray load loss

SAVINGS

Cost of energy efficient motors: Usually it is of normal cost and slightly more than the

normal motors. It is about 15% to 30% more than the normal motors.

In Future, the initial cost may be available at the same cost as a standard motor when the population of EE Motors increases

ADVANTAGES

Operate more satisfactorily under abnormal voltage.

Electric power saving.

Operating temperature is less.

Noise level is lower.

Disadvantages

Portability.

Initial cost is more.

Speed Control .

Applications Motors are suitable for wide industrial applications

like paper, cement, textiles, cranes, material handling, machine tools and blowers etc.

CONCLUSION:

Finally i conclude that most of the industrial loads having motors are consuming 70% of the total electricity.so it is better to replace standard motors with energy efficient motors where ever economical. so that

we can Save energy. Save money. Save atmosphere from

pollution.

REFERENCES:

Wikipedia.com Slide share.com Project form.com Student seminar.com

Thank you