Why we are use 11KV / 22KV / 33KV / 66KV / 110KV / 230KV / 440KV this type of ratio. why cant we use other voltage ratio like 54KV / 99KV et.,
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8 29478From the point of view of accuracy in the Measurement of Electrical energy should we select a potential transformer or a capacitor voltage transformers?.Kindly support your reply with reason and justification.
1 3186HOW DOES ONE SELECT A TRANSFORMER PHASOR GROUP IE, WHETHER A STAR-DELTA TR OR A STAR-STAR OR A DELTA-DELTA, ETC. TRANSFORMER IS MORE SUITABLE FOR A PARTICULAR KIND OF LOAD OR WORKING CONDITION???
3 65111. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay
ABB,
3 4995When geneartor is running in poor lagging side power factor its excitation current increases then it is running in improved lagging side.Kindly tell me when gen is running in leading side what will happen
3 5457in slip ring motor if motor specification is given how we calculate its rotor resistance in starting
1 4270If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.
16 70219Post New Electrical Engineering Questions
why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?
During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.
WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE
distribution is maximum done by a)radial b)network c) parallel d)b & c
how many load we can take for lighting
if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please
Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB
How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?
I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?
Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?
Why negative feedback is preferred in the control system?
please suggest some good universities with low cost iam in totally full confusion so please help me my profile gre 283 and ielts 5.5
tell me about roaster switch .& what is the function in transmission & distribution?
Mention the disadvantages of low power factor?
the problem faced on star or delta winding connection??