Answer / k.prakashchandra

If the earthing is good ,the bulb will burn at almost full
phase voltage in case of AC.In DC ,the same if one polarity
is earthed, but if the ground potential is at +/- zero volt
by midpoint earthing,the bulb gets the half the full
voltage.

Why DG set is not installed in Terrace ??

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how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

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how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???

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What is fault level?How it is calculated and how it is Expressed?

2 Answers  

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Why only 1 CVT in Y-phase is used for synchronization in 3 phase power system?

1 Answers   Reliance,

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what is accuracy ? in any meters , coils accuracy . how can u defined that ?

0 Answers   Adani,

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This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

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how can we judge the percentage of load on the basis of temperature differences readings between WTI and OTI in a transformer

1 Answers   Toshiba,

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Why we can't start a tube light without a starter(choke) and an inductor?

1 Answers  

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How to calculate the total number cells required for a particular KVA UPS system?

1 Answers  

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Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output

0 Answers   Altra Power,

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Iin ESP why positive is grounded ? why not negative ?

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