Akhilesh Kumar Nair
@akhilesh-kumar-nair-4x1Bmf Member
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Posted #Threads
For design of LPS what is value of discharge current?
For designing a lightning protection system what is general discharge current taken for calculations.If there the value is universal standard for whole India?If not how to...
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Replied #Threads
Why only we use 3 phase why not 5 phase
pinankYes you can say it in a way. But if u are wondering why a 5 phase system is not used in generators, the main reason...
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Why only we use 3 phase why not 5 phase
pinankYes you can say it in a way. But if u are wondering why a 5 phase system is not used in generators, the main reason...
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Replied #Threads
Why only we use 3 phase why not 5 phase
pinankNo in a 5 phase system you won't get the symmetry between the phases. Let's say there are 5 phases A,B C D E. Now the...
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Why only we use 3 phase why not 5 phase
pinankWe know nature always follows a balanced system. Now consider a system with more than 3 phases. The angular displacement between two phases will not be...
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Why only we use 3 phase why not 5 phase
Void RunnerYou can use as many phases as you want. The main concerns are costs and heat generation, at a certain point the gains provided aren't...
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Why only we use 3 phase why not 5 phase
Saandeep SreerambatlaI think you have got me wrong here. Consider a 3 phase system which has phase angle of 120 degrees and which are in series...
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Why only we use 3 phase why not 5 phase
Saandeep SreerambatlaI have spoke to my friend who has done some Phd in electrical Engineering, I have shown him this thread and asked him why is...
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Why only we use 3 phase why not 5 phase
Jeffrey SamuelMate I aam sure you mean that the Phase difference between the maximum voltage is 120 in 3 phase and 72 in 5 phase networks...
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Why only we use 3 phase why not 5 phase
vamsi kancharlafor 3-phase peak voltage can be obtained well when compared with 5 phaseIf you're explaining something or asking I apologize sir but I don't understand...
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Why only we use 3 phase why not 5 phase
naman2511i am talking about the power gain... single phase power is VIcos(phi) while that of three phase system, power is sqrt(3)*V*I*cos(phi) where V and I are...
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Rotor angle change in alternators
Dhayalan.Swhen will the rotor angle change in large alternators???It changes when there is a change in load or fluctuation or any type of fault. I will...
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Why only we use 3 phase why not 5 phase
naman2511Using 2-phase system will provide you gain of around 1.4 time of 1-phase system. Using a 3- phase system will provide you gain of 1.57 times...
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Traction system of India?
Saandeep SreerambatlaCheck for the wikipedia articles for, 1. Locomotives of India. 2. Railway electric traction 3. Traction motor 4. Diesel Locomotive. All these articles give v...
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Traction system of India?
Saandeep SreerambatlaIn India we generally use, 1500 V DC , 25kV AC 50Hz supply all over. There are cases where we are using multiple supplies in...
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Posted #Threads
Traction system of India?
Friends I need following details of traction system presently employed in India 1 voltage and power rating of Motors? 2 number of motors used? 3 power...
4 replies -
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Need a idea for current equalisation?
A.V.RamaniThat only wastes power. Is there any reason to do that? In the house we have so many loads all running from the same 220 V...
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Need a idea for current equalisation?
A.V.RamaniAkilesh, edo kozhappam kanunnundu. There is some confusion. Let us say you have four loads with these currents: L1- 5 amps, L2- 4 amps, L3- 3...
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Need a idea for current equalisation?
A.V.RamaniI am assuming that even if the supplies are different the loads all have a common ground. Otherwise it is equivalent to having four unrelated circuits....
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Need a idea for current equalisation?
A.V.RamaniAkhilesh, If you have a single voltage source and loads with unspecified variations, it is not possible to have all load currents equal because of Ohm's...
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Posted #Threads
Need a idea for current equalisation?
Friend I laterally don’t know what this stuff is called a filter or something but I need a circuit or transducers arrangement which can equalize flow...
8 replies -
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Making of electrical winding ?
narayana murthyfirst of all don't call me sir. next i want to say is there is difference between resistance and inductance. so i think in transformers...
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Making of electrical winding ?
narayana murthyactually those big transformers are placed in normally so they need a high level of insulations. Thats the principle we use insulation anyway your question...
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Are nuclear and thermal powers different?
Anand TamariyaYour answer must not include nuclear power. Nomenclature is used to classify things into distinct categories. In this particular case, it is used to differentiate...
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Are nuclear and thermal powers different?
aarthivgNuclear power plant produce energy in the form of heat by the fission of atoms. The cooling system removes this heat from the Nuclear reactor core...
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Posted #Threads
Making of electrical winding ?
Friends generally I have seen transformers used in small equipment like chargers etc have windings of naked wire and separation between two layers is done by...
6 replies -
Replied #Threads
Are nuclear and thermal powers different?
Anand TamariyaNuclear power refers to power generation using either fission or fusion reaction. Thermal power refers to power generation using exothermic chemical reaction. That's...
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Why Tesla Tower of wireless transmission was destroyed ?
Ankita KatdareTesla's dream was destroyed when creditors from Westinghouse confiscated his heavier equipment for nonpayment for services rendered. In addition, James Warden sued Te...
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Posted #Threads
Are nuclear and thermal powers different?
I have basic doubt in nomenclature we generally use terms nuclear and thermal power separately but according to me the thermal energy of nuclear reaction is...
6 replies -
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Why only we use 3 phase why not 5 phase
Ahsanul haqueAccording 3 phase and single Phase devices can be powered from a 3 phase supply. 3 phase circuit is a combination of 3 single-phase circuits....
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Why Tesla Tower of wireless transmission was destroyed ?
Saandeep SreerambatlaWe never know the real answer, but the tower was destroyed because the sponsors didnt find a way to commercialize the whole invention from Tesla....
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Why southern power grid is not synchronised with other?
aarthivgWe already had a discussion on this: #-Link-Snipped-# sorry I forgot to search the topic once and thanks for the reply.
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Why only we use 3 phase why not 5 phase
Ahsanul haqueyou could check out this site <a href="https://en.wikipedia.org/wiki/Aluminium" target="_blank" rel="nofollow noopener noreferrer">Aluminium</a> 😁 sorry bro I faile...
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Why only we use 3 phase why not 5 phase
sumiijaisican anyone tell me why single phase is 220 volts and three phase is 440 although its 3 times so it may be 660 volts... sometimes...
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Posted #Threads
Why southern power grid is not synchronised with other?
I heard that almost all regions in India are interconnected except southern grid it is only connected through HVDC line but why the southern grid is...
2 replies -
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Nokia Lumia 1020 Preorder In India For Rs. 49,999 On Nokia Store
Or why not apple i phone 5s beside stunning finger print security with with less pixel count it will give satisfactory shots.....
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Posted #Threads
Why Tesla Tower of wireless transmission was destroyed ?
Why Wardenclyffe Tower of wireless transmission was destroyed, as far as I know Tesla’s funder GP Morgan said “without wire then where to put the meters...
6 replies -
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Why only we use 3 phase why not 5 phase
Ahsanul haqueThree-phase😉 electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and...
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Why only we use 3 phase why not 5 phase
Anand TamariyaI'm sure 5 phase generator would have been constructed. But it never left lab and went into production because it didn't win the utility improvement...
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Posted #Threads
Can AC machine replace DC machines?
During training in BHEL somehow I know that recently Indian railway is replacing DC traction motors by induction motors but I failed to know how the...
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Which is better electrical company - Schneider Electric Or Kirlosker?
Ahsanul haqueyou need to pass score of GRE, GMATH then You can get scope of higher education to abroad. Most of Student working working with foreign...
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Why only we use 3 phase why not 5 phase
Halil Alper ONAYI see but I think it is not even numbers that cause actual problems but the power of two phases. I have encountered with...
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Why only we use 3 phase why not 5 phase
Akhilesh Kumar NairYou can have any no phases you only have to divide your winding in the generator but when you choose even phase it will...
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Why only we use 3 phase why not 5 phase
Halil Alper ONAYLet me ask Why there is no 4-phase or the power of 2 phase ? You can have any no phases you only have...
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Why only we use 3 phase why not 5 phase
Anand TamariyaThat's not the reason. Means of production is only to ensure efficient distribution. You should figure out why it's more efficient to distribute polyphase power....
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Why only we use 3 phase why not 5 phase
Anand TamariyaThat's not the reason. Means of production is only to ensure efficient distribution. You should figure out why it's more efficient to distribute polyphase power....
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Which is better electrical company - Schneider Electric Or Kirlosker?
Ankita KatdareTo some people it is a matter of working for an Indian company or a Foreign one. Schneider is foreign, Kirloskar is from India. I...
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Which is better electrical company - Schneider Electric Or Kirlosker?
Kaustubh KatdareBoth are good companies. I'd recommend basing your decision on - 1. Your probability of getting selected in these companies. If Schneider electric is tough...
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Posted #Threads
Which is better electrical company - Schneider Electric Or Kirlosker?
For a fresh Electrical engineer which is the better company to start with more scope Schneider or Kirloskar I am so much eager for a job...
9 replies -
Replied #Threads
What quality should be needed to join software field in electronics & communication
If want job in software you can directly sit in company like TCS for pool campus they do not ask for particular discipline and for that...
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Why only we use 3 phase why not 5 phase
Saandeep SreerambatlaEven phases are not used because the resulting neutral wire has to carry large amount of power in case of any faults. Please be patient...
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Why only we use 3 phase why not 5 phase
Jeffrey SamuelNice question When phase difference is 120 degree one of the sine wave reaches maximum voltage at any point of time That is why we...
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Why only we use 3 phase why not 5 phase
Jeffrey SamuelI edited check it And by the by The maximum phase change attainable is 72 in 5 phase supply That is what I meant And...
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Why only we use 3 phase why not 5 phase
Jeffrey SamuelSine 90 is the maximum point of a sine curve and when we divide it by 5 we have angle only upto 72 whereby the...
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