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why we should to put ground with ac source

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Junior Member level 1
Aug 15, 2009
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difference of neutral and ground

why we should to put ground with ac source

should i ground neutral cable

I hope u were trying to ask why we have make our circuit ground and supply ground common......
If so it is for the return path for the current.
If not placed ur circuit becomes floated and no current flows through the circuit

how to put gnd

yes i know the ground use it return current
but i mean in ac source we have two terminal line from where i can get the ground

let us assume we get this link from 220v from our electric at home what about the ground this third line ?

ac supply + grounding

In standard house lines there are 3 wires: Hot, Neutral, and Ground. Ground is the chassis ground and neutral is your system ground. In some cases neutral is connected to chassis ground, but it generally isn't. The purpose of this is to have a direct path to ground if a fault to ground on the chassis occurs (a wire comes loose, a cable drops on the box, etc).

As for a two terminal line, the white one (neutral) is your "ground". MAKE SURE that you measure its potential against a grounded source (like the 3rd prong in an outlet) to ensure that it is actually neutral (neutral will have 0VAC difference, hot (black) will have 220VAC difference).

grounding two ac sources

im my home i just have 2 line
so i just have hot and ground
i this way how i use transofrmer if i just have one line have current
it is should have to wire have current with opposite side

For a transformer, just hook up both of your lines on the primary side and you will have a voltage on the secondary side. All a single phase transformer needs is one current carrying line and a neutral.

check out ur AC supply......
what is ur freuqency?
I think it is 120V AC source.In this u have main path for current and other ground.
U can connect ur main path to one end of ur transformer and other to ground at primary side.

Generally we have 3 wires in our house hold where one is current path, one ground and other nuetral.
Voltage between main path and ground is 230V.They are 180deg out of phase
Voltage between main path and nuetral is half of it.
These are single phase systems

U have three phase systems where 3 liness differ in phase by 120deg.


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