Answer / zell

high voltage circuits as those with more than 1000 V for
alternating current and at least 1500 V for direct current,
and distinguish it from low voltage (50–1000 V AC or 120–
1500 V DC) and extra low voltage (<50 V AC or <120 V DC)
circuits. This is in the context of building wiring and the
safety of electrical apparatus.

Answer / ramesh

High more than voltage are rated from 1000v both Dc or Ac but
for the safety purposes the rated 110v more than ac are
dangerous
50v more than dc voltage are dangerous for human safety reason

HV=rated from 1kv,11kv ,33kv
LV=rated from 1000v,750v,500v,415v 230v ....

Answer / jahangir alam

low voltage is up to 1000v, high voltage rating start from 36kv to 230kv

why two contacts(in series) are using in closing circuit

3 Answers  

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Can I use 1 phase power supply to run 3 phase motor? If yes, how?

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4 Answers  

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Why mostly the HV side of transformer has Delta?

0 Answers  

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a power supply to be constructed from voltage cells is required to provide Max. 20A Current with a terminal voltage of 6v.Several voltage cells are available each of which has terminal voltage of 1.5V & each of which can supply a max current of 5A .the no of cells required will be ??

5 Answers  

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9 Answers   Jindal,

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What is the use of oil in transformers?

0 Answers  

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What is the equipment used to control the generator output?

3 Answers  

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Hi, We facing one similar problem in our computers i.e we are newly constructed our design department after that shifted our computers but our computer desktop screen is vibrating. we are conducted our electrical maintainance person he told that is UPS problem, then we changed the UPS also again we are facing that problem in that room only. then we put lcd monitors that problem is solved. But in other monitors why the computer desktop screen is vibrating please give a suggestion to me. Regards, Raju.N.G

10 Answers  

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why the name trunking bus PT

0 Answers   Siemens,

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two transformers of the same type, using the same grade of iron and conducting material, are designed to work at same flux and current densities, but the linear dimension of one are two times of the other in all respects. The ration of kVA of the two transformer closely equal to................? options: 16, 8, 4, 2

2 Answers   Vizag Steel,

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