seminar on Energy efficient motors Submitted by Name - Deepak Dev. Roll no - 2021031087. Branch - Electrical E ngineering. (3 rd Year)
contents What is energy efficient motor(EEM) ? Difference between standard motor and energy efficient motor Need of an energy efficient motors Efficiency Maintenance Advantages and disadvantages Applications References 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 Table 2 Annual Value of a One-Point Efficiency Gain (Based on ₹3.34/kWh, 8000 Hours of Use,Full Load) Horsepower Annual Savings 5 ₹1,417.85 10 ₹2,668.89 20 ₹5,087.58 50 ₹11,843.22 100 ₹23,186.02 200 ₹44,787.38
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.