when we connect a ceiling fan to a inverter's output voltage, it give some noise, why?

5 Answers   Luminous,

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Is it advisable to buy a plot for house construction near High Tension Power lines? If it so how much distance it should be away from power line? Iam residing at Chennai, Tamilnadu, India.

2 Answers  

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Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?

0 Answers   Power Plant,

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How to findout raw or ups power? its not indicated in socket,

0 Answers   Novo Nordisk,

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Leading power factor means what? what is the power factor value while in power factor is leading? is power factor greater than one? In some cases i heard pf 0.8 leading then what about 0.8 lagging?

1 Answers   Rockfort Engineering,

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explain the f=np/120 this equ.how to come 120

3 Answers   Jayaswal Neco Industries,

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why we use ac?why we use dc? why we we cannot use only ac/dc for all the applications?what happen if we use?

0 Answers  

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In synchronous generators field is rotor and armature is stator.Can we take the output at the rotor in case of synchronous generator by the dc excitation on the stator?

2 Answers  

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can you tell me/show me, how to manually synchronize 2 DG. preferred with video.

2 Answers   Cummins,

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Why the brushes used in dc machines are made of carbon not from other metal?

3 Answers  

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What is the efficiency during maximum power transfer?

0 Answers  

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explain wiring system

0 Answers  

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