Answer / vagish m r

Basically there are solar collectors which collect the sun
rays. They are in concave shape, flat etc. Solar cells convert
Solar energy into Electrical energy. They are silicon coated
cells. They work on photo electric effect. when light falls
on the cells, valence electrons are liberated by absorbing the
light energy. These electrons start circulating & form
Electricity.

quantizer means?

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hoe to test voltage restrained overcurrent relay?

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why neutral is neccessary?

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what is power transformer?

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Whether the Dc motor Droping the power factor like AC motor if lot of motor running in factory is it necessary to connect capacitor bank

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Why used in netural grounding transformer for netural side

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if there is fire alarm,what is ur activity?

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how to size a diesel generator set?

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How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

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i want to ask that as everybody knows that in star connection on star point is called neutral. my question is that why on that poin called neutral. what is the reason behind it. what is the logic behind it. i heared somewhere that on this point all phases current become zero thats why. if this answer is right then prove why on that point is current become zero. if this answer is not right then tell me the right answer. post ur answer here or on my mail address. m.ikram786@yahoo.com m.ikram555@gmail.com. thanks.

1 Answers  

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difference bewteen reverse current and alternating current

0 Answers   ABB,

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what happens when back feeding supply accidently collapses with normal supply ??? How?? [that is sometimes in a substation 11kv feeder if their ws long time permit work, back feeding supply will provide from nearest substation... if accidently after the permit work,they charged the feeder without removing back feeding wat will happen...?]

1 Answers   KSEB,

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