Why there is no neutral in 3 phase? in tamil

ஏன் 3phase supply connections-க்கு Neutral தேவைபடுவது இல்லை?

Three-phase electric power is a common method of electric power transmission. It is a type of polyphase system mainly used to power motors and many other devices. A three-phase system uses less conductor material to transmit electric power than equivalent single-phase, two-phase, or direct-current systems at the same voltage.

In a three-phase system, three circuit conductors carry three alternating currents (of the same frequency) which reach their instantaneous peak values at different times. Taking one conductor as the reference, the other two currents are delayed in time by one-third and two-thirds of one cycle of the electrical current. This delay between "phases" has the effect of giving constant power transfer over each cycle of the current, and also makes it possible to produce a rotating magnetic field in an electric motor.

Three phase systems may or may not have a neutral wire. A neutral wire allows the three phase system to use a higher voltage while still supporting lower voltagesingle phase appliances. In high voltage distribution situations it is common not to have a neutral wire as the loads can simply be connected between phases (phase-phase connection).

Three phase has properties that make it very desirable in electric power systems. First, the phase currents tend to cancel out one another, summing to zero in the case of a linear balanced load. This makes it possible to eliminate the neutral conductor on some lines; all the phase conductors carry the same current and so can be the same size, for a balanced load. Second, power transfer into a linear balanced load is constant, which helps to reduce generator and motor vibrations. Finally, three-phase systems can produce a magnetic field that rotates in a specified direction, which simplifies the design of electric motors. Three is the lowest phase order to exhibit all of these properties.

Most domestic loads are single phase. Generally three phase power either does not enter domestic houses at all, or where it does, it is split out at the main distribution board.
At the power station, an electrical generator converts mechanical power into a set of alternating electric currents, one from each electromagnetic coil or winding of the generator. The currents are sinusoidal functions of time, all at the same frequency but offset in time to give different phases. In a three-phase system the phases are spaced equally, giving a phase separation of one-third cycle. The power frequency is typically 50 Hz.

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[JayaKumar-ktyh]

Inga mari teach engalukku Pannala sir....super teaching sir...useful Tamil medium student

[sunil.gsunil.g]

உங்க எல்லா explainnation ரொம்ப சூப்பரா இருக்கு sir romba useful ஆக இருக்கு.

[churchiljerin]

Sir, more useful with nice explanation my doubt solved

[nrnmirandamiranda]

Sir நீங்க தமிழ் மாணவர்களுக்கு மிகவும் பயனுள்ள கற்பித்தலை தருகின்றீர்கள். முற்றுமுழுதாக தமிழில் கற்பியுங்கள். இலங்கையில் இருந்து இலத்திரனியல் பொருளியல் மாணவன்....

[manimekalaichandrasekar]

When we were studying, only English in college, excellent in Tamil language

[mixingvideos]

Intha maari practical knowledge video podunga sir

[syedhajamuyinudeensaiyadya]

Super very banefitful for mei’m Syed haja from Malaysia

[antonysamuel]

Super sir....practical answer a iruku thank u sir....

[n.sakthivel]

So proud of you sir thank you very much

[AKM-]

Sir videos konja konja thaan upload pantringa.. Full video upload pannunga sir please..

[subasharal]

ஒரு 3 பேஸ் மோட்டார் இருக்கு இரு சப்ளை eb லும் ஒரு சப்ளை ஆல்டர்நெட்டில் அதாவது ஜெனரேட்டர் கொடுத்தால் வேலை செய்யுமா / செய்யாத சார்

[spmanikandan]

3 phase working device only no need common neutral.but if a device working in 2 phase, common neutral nessacery thane sir?

[pachaiammadevi]

thankyou sir.
Negative half cycle voltage current in inductance and capacitance working solluga sir

[moorthiashok]

Name தான் circuit theorey but ஒரு theory question கூட இல்ல sir

[mahasewansivam]

சார் உங்க மண்டையிலே மூல இருக்க அல்ல எலக்ரோனிக் சிப்ஸ் இருக்க இவ்வளவு விவர சொல்ல தரீங்கலே, நீங்கலாம் நீண்டகாலம் வாழனும் சார் நன்றி தொடருட்டும் சேவை

[sanathshetty]

Sir please can you explain about capacitor bank

[allinalladityan]

Why is 120° separation is set as a standard angle difference for each phase. Why can't the angle of separation be uneven? Does the separation degree have to be equally balanced?

[moorthiashok]

Tnku sir but today circuit theorey question ரெம்ப கஷ்டமா இருந்தது sir

[muthupandipandi]

Sir I need a detailed clarification which law basis its one phase acting as a neutral

[sethupathi]

Three phase motor wire calculation formula