Suggest the energy conservation techniques in following cases : (i) Motor is running with 70% loaded condition. (ii) Motor is continuously loaded at 50%. (iii) Motor runs with 30% loaded condition but sometimes rises to 50% loading condition. (iv) Motor runs continuously under no-load condition.

Suggest the energy conservation techniques in following cases : (i) Motor is running with 70% loaded condition. (ii) Motor is continuously loaded at 50%. (iii) Motor runs with 30% loaded condition but sometimes rises to 50% loading condition. (iv) Motor runs continuously under no-load condition.

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1 Answer

Answer :

Following are the suggestion the energy conservation techniques in following cases : 

(i) Motor is running with 70% loaded condition: Use APFC or IPFC for better power factor improvement. Use cooling fans for motors.


(ii) Motor is continuously loaded at 50% : Convert Delta to Star connection for lightly loaded motors. Use APFC or IPFC for better power factor improvement. Use cooling fans for motors.


(iii) Motor runs with 30% loaded condition but sometimes rises to 50% loading condition: Convert delta to star connection for lightly loaded motors. Use APFC or IPFC for better power factor improvement. Use cooling fans for motors. If possible use low capacity motor for this above condition.


(iv) Motor runs continuously under no-load condition: Convert delta to star connection for lightly loaded motors. Use APFC or IPFC for better power factor improvement. Use cooling fans for motors. If possible use low capacity motor for above condition. If possible switch off the motor.

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