Answer / pravesh

ripples in ac supply are the d.c. components which are
along with the supply.

Vac = sq root (Vrms)^2 + (Vdc)^2

Answer / yogan

dc power

what are the types of cables?

3 Answers  

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define one ampere?

2 Answers  

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Why a Transformer Noise during its running condition ??

11 Answers   NTPC, UPPCL,

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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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transformer is working or not with supply of DC?

2 Answers  

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why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

0 Answers  

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what are the industrail measures to overcome ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system? plz reply

3 Answers  

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What is maximum AC & DC transmission voltage in India? and where?

12 Answers  

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What is the types of HT motor testing

0 Answers   ABB,

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i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 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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in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

1 Answers  

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