Answer / vijay

38.4mins backup time

how electricity is generated through electeic generator ?

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what are the safety measures of induction motor?

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what is the relation between the size of the machine and the frequency? (when the frequency increases the size of machine will increase,why?)

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A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS

2 Answers  

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If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

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How does a diesel generator works?

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why dc supply is given to the field of alternator

9 Answers  

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Why a motor blower cobination draw more current at winter than summer?

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Write down the brushes of a de machine.

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How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

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Why current transformer is earthed??

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In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?

0 Answers   TATA,

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