Why are the voltage levels in a powersystem are 11KV,33KV
etc., why not 10KV,30KV?

Answer Posted / s.rajkumar

In general the voltages are represented in RMS values which
is obtained by multiplying average value with form
factor..........in general voltages are taken in terms of
average values as you have said (10,20......) but as we
multiply it with form factor which is 1.11 for sinusoidal
waveform the voltages become 11Kv,21Kv,33Kv,66Kv...........

Is This Answer Correct ?    15 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

1548


my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.

1571


which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

1509


if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain

908


What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

1845






Is there any relevant technique to produce power from light and heat energy of the sun simultaneosly from same rays of light?

1415


what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

2321


DC transmission

1612


what is stper motor

1990


what type of questions are asked and howmwny questions belong this catagory?

1719


Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

1712


L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

675


What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

1337


which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

2005


which type of amplifiers are used in multimete?

1646