Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

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if we want to convert the two 12 V DC batteries in parallel for UPS ? what would be the result ? which is better for a UPS , connect two batteries in series or connect them in parallel ?

2 Answers  

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How i can identify the 220V and 110V power supply equipment? No tag number.

4 Answers  

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what is zero sequence curr ent ?

4 Answers  

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How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

0 Answers  

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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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what are the particle used along with silica gel in transformer breether,explain their functions.

4 Answers   ME, Oil India,

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What is the approximate percentage of Si content in transformer core(CRGO-Cold Rolled Grain Oriented)? Why it is kept so low?

1 Answers  

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what is overflexing in transformer? setting?

1 Answers  

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can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

0 Answers  

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what type of battery used for starting D.G?state its function?

2 Answers  

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what are the insulation properties.

2 Answers   Cable Wireless, MAHINDRA,

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