plz clear my doubt about ground and neutral

ground to neutral floating voltage pdf

anybody can explain how ground vtg and neutral vtg become zero.

if neutral is grounded wt is its advantage

hot wire connected circuit return path

The term ground or earth usually means a common return path in electrical circuits. The terms Earth return and ground return are also common.

In electronics

Circuit ground versus earth
In an electrical circuit operating at signal voltages (usually less than 50 V or so), a common return path that is the zero voltage reference level for the equipment or system. Voltage is a differential quantity, which appears between two points having some electrical potentials. In order to deal only with a voltage (an electrical potential) of a single point, the second point has to be connected to a reference point (ground) having usually zero voltage. This signal ground may or may not actually be connected to a power ground. A system where the system ground is not actually connected to earth is often referred to as a floating ground.

no were u answere to my doubt that about neutral and ground

As a common term they are at zero volts, however you can also have a "floating ground" that can actually be at several volts above/below a zero volt reference.

I prefer to distinguish between them all with "Earth" being zero volts, "Chassis" being connected to Earth in equipment and hence at Zero and then using "0v" signals if it is at zero volts.

Analogue Ground, Digital ground etc can all be held slightly higher/lower than zero depending upon the application so will need showing so in a schematic.

grittinjames,
In the USA, Neutral is the current carrying return path for a circuit. Ground is a safety path that is provided in case of a failure, such as a short from the "hot" wire to a cabinet. It ensures that, among other things, the circuit breaker will trip in the presense of such a fault. The ground wire, under normal (non-fault) conditions, carries no current. The ground and nueutral wires are connected together at the electrical service panel, and ultimately are connected to Earth ground via a ground rod. The neutral wire is white. The ground wire is bare or green. See the NEC (National Electrical Code), available at any decent library, for more details. I'm not familiar with European or Asian standards, but I suspect that they are similar.
Regards,
Kral

i agree mr kral .

if there is no connection b/w neutral and ground how we r getting shock when we r touching phase.
it indicating neutral is connected some were to ground .why it is requered

Kral said:

grittinjames,
In the USA, Neutral is the current carrying return path for a circuit. Ground is a safety path that is provided in case of a failure, such as a short from the "hot" wire to a cabinet. It ensures that, among other things, the circuit breaker will trip in the presense of such a fault. The ground wire, under normal (non-fault) conditions, carries no current. The ground and nueutral wires are connected together at the electrical service panel, and ultimately are connected to Earth ground via a ground rod. The neutral wire is white. The ground wire is bare or green. See the NEC (National Electrical Code), available at any decent library, for more details. I'm not familiar with European or Asian standards, but I suspect that they are similar.
Regards,
Kral

Click to expand...

grittinjames said:

i agree mr kral .

if there is no connection b/w neutral and ground how we r getting shock when we r touching phase.
it indicating neutral is connected some were to ground .why it is requered

Click to expand...

In some cases is not even required, the ground is used as the return
path, in which case the ground form something known as stray voltages.
In others words, the difference in potential between two points in the
soil(ground) due to the return current is known as stray voltages.
Can be even lethal, and is know to bother cows.
https://www.wisconsinpublicservice.com/farm/investigations.asp
https://www.uwex.edu/uwmril/pdf/StrayVoltage/03_What_do_we_know_about_Stray_Voltage.pdf
**broken link removed**

This was very common maybe 50-60 years ago, when delta distribution was
comon. Nowadays, the neutral
or return path is provided. However, due to imbalances of the distribution
network the potential in the neutral or due to bad ground connections
may not be the same as in ground and consequently the shock.