Answer / pratik

When motor is overloaded for longer duration it's current Ia increases which cause heat in winding and as the heat increases the flux produced by the winding comes to saturation at one point,and so the motor stops to rotate.

pls send link about servo motor

3 Answers  

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In a ordinary plug can we hold the earth in hane and connect the circuit to supply?will we get a shock?

5 Answers  

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Where is 2 phase supply used commercially?

3 Answers   NTPC,

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why motors are rated in HP?

3 Answers   HCL, ncpl,

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how work a harmonics filter(L-C combition).

1 Answers   Bhel,

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why is one voltage transformers (instead of three ) installed at the entrence of the incoming line in a substation.

2 Answers  

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why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

0 Answers  

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why generally transformer are in star to delta or delta to star used?

8 Answers   ABB,

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Differentiate between power relay and reverse power relay?

2 Answers   ABB, TVS,

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how many kw = one ton air condition?

2 Answers  

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How does zener phenomenon differ from avalanche breakdown?

0 Answers  

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which is the most common harmonics 3rd,5th,7th affect the systegm

4 Answers  

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