Answer Posted / sumit

Induction motor is mostly used for company purpose and we can change the speed as per our criteria but wholly in 360 degree and in servo motor which is generally known as low speed motor .In that we can change the speed as per our criteria but not in 360 degree it can change its speed in every 90 degree through programme.

what is PID control in VFD drives?

2008

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why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

2085

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Pl. brief about break-down maintenance of machine tool.

1813

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why we r not earthed Control cable of C.T. terminals

2042

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What was your role in the silicon evaluation/product ramp? What tools did you use?

1954

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What is called grain-oriented laminations?

1171

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What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

2057

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for a 400kv t/m line with 10 ampere current will corona occur?

2198

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Explain using drawings what is reverse PID action w.r.t PID controllers.

3461

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If short circuit ratio is high is it bad or good for a machine then tell the reason...

2041

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Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2

1864

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The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

1861

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am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

1874

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Define non-touching loop.

1343

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What is the estimated total hydropower potential of india?

1144

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