Answer / er. ankush miglani 9718151073

nano technology is a branch of sc. that deals with the
study of matter at nano scale i.e. at atomic and molecular
level.

Answer / victorvgp

Nanotechnology is a part of science that deals with the
particles of about few hundred nano meters.

The diameter of world's smallest motor is 300 times
smaller than the dia. of human hair and this type of motors
are used for nano robots. r u believe it! but it's a fact &
it's possible through nanotechnology.

With the help of nanotechnology we can able to see an
unbelievable world in our future.

Define active and passive network?

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for flour light (garden light) how much deep need to put 222ov 0

1 Answers   Anantara Hotels,

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In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?

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what is zero sequence curr ent ?

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transformer 3 ph, 225 kva pri 480v, sec 208v. primary neutral connected to system, is secondary neutral to be grounded and how

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I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

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What is control system?

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i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

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The unit of quantity of electricity is the:(a) volt(b) coulomb(c) ohm(d) joule

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why induction motor take more current when motor start time and this current take for 1 hours when motor is start.

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why nearly all voltages are in the multiples of 11?

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In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

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