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Latest Electrical Motors Questions and Answers

S Bharadwaj Reddy
How do the new IE efficiency classes compare with the old EFF efficiency classes? The new IS: 12615-2011 defines the following efficiency classes of low-voltage three phase asynchronous motors in...

Induction Motor Interview Questions Answers

S Bharadwaj Reddy
What are the advantages and disadvantages of Induction Motors? Advantages: It is simple and rugged in construction It is relatively cheap Induction motors require less maintenance Induction motor has high...

Induction Motor Interview Questions & Answers

S Bharadwaj Reddy
[1] How does the Induction motor work? (OR) Why does the Rotor rotate? When the 3 phase stator windings are fed by 3 phase supply, a magnetic flux of constant...

Electrical Motors Interview Question And Answers

S Bharadwaj Reddy
What are causes of hot bearings? The causes are lack of oil belt too tight armature not centred with respect of pole pieces bearings too tight or not in line...

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