Answer Posted / suresh

Centrifugal switch is used for when the motor speed reaches 75% then starting winding disconnecting from circuit.it is only starting purpose only.

Differnce between negative Pahse SequenceFunction and unbalance Function?

1793

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State ohm’s law?

1168

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hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

2730

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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

2008

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what is the relative size of single and three phase?

1930

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where is core-type and shell-type construction suitable for transformers ?

2146

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ROC converges if poles and zeros lie inside a. Origion b. Z=1

2299

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What are the application of filter?

1119

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The shot circuit in any winding of transformer result? Explain

1390

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DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

2320

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A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .

2689

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what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

2848

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explain Density

1174

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ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

2078

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In parallel operation time both NGR’s close or not close if both close what will happen

3788

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