why some harmonics are disturbing while the others not

1 Answers  

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During the transients in alternator,the mechanical power input remains almost constant while the electrical power output changes significantly.Why?

1 Answers  

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I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

0 Answers  

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What are locations arc protection relay is fixed.

0 Answers   KSEB, L&T, Siemens,

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why current is leading in capacitor?

1 Answers   PSU,

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In power plants the reading changes abruptly to give value (MW -25) (MVAR -15) What are the reasons for this? What is the solution?

2 Answers   GE,

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why are transformer rating in MVA

2 Answers   Suzlon,

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Purpose of lighting transformer.

2 Answers  

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WHAT IS THE USE OF TERTIARY WINDING IN A STAR/DELTA TRANSFORMER ?

3 Answers  

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why transformer rating is given in kva?

2 Answers  

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The transmission does not have options: a)Partition noise b) Flicker noise c) resistance d) Short noise and reason

0 Answers  

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What are m circles?

0 Answers  

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