why do the core of transformer saturates???

1 Answers  

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Why is it that variation allowed in supply voltage to motors is (+ or -)10 %, whereas that in frequency is (+ or - )5 %

3 Answers  

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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?

0 Answers  

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if a 3 phase induction stator has charactristic plate and have on winding inside.with the calculation of plate or dimenssion of core how one can desinge rewinding drawing.

0 Answers  

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Name the earthings?

3 Answers   HSL,

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1.What is isolators and bus bars?give answer in details

2 Answers  

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what is the difference between RMS meter and normal meter

3 Answers   TATA,

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what is the difference between Earth and neutral? and what is the difference between ground earthing and neutral earthing?

2 Answers  

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how the testing of CT OF 400/200/100 done in33/11 kv s/s

1 Answers   Reliance,

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when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

0 Answers  

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explain the application of reciprocity theorom

0 Answers  

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what is meant by real power,active power,reactive power & apprent power ?please explain it?

3 Answers  

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