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When the neutral is connected to the ground they are at the same potential which is zero volts. If the neutral gets disconnected from the ground then a potential of 120 volts will be measured from the open neutral to ground. This voltage is being measured from the neutral side of the load that is on the circuit.
because they are actually the same cable at sub station, but split by the time they come to the board, long answer involved but that's the jist of it!
What else can I help you with?
Why neutral ground voltage is 120v sometime 0v?
There should be no voltage on the neutral wire to ground. This is a serious situation. Call a qualified electrician to check this out.
What is the significance of the neutral to ground voltage in electrical systems?
The neutral to ground voltage in electrical systems is important because it helps to ensure the safety of the system. When the neutral to ground voltage is at the correct level, it means that there is a proper connection between the neutral and ground wires, which helps to prevent electrical shocks and fires. Monitoring and maintaining the neutral to ground voltage is crucial for the overall safety and functionality of an electrical system.
Why neutral is ground in the circuit?
In the transformer at the secondry side one end of the winding will make star connection means 0 point there will be no voltage at that end if any leake voltage appear at that point it have to ground that what all the neutral points to be grounded
Should there be voltage between the neutral and ground?
No, ideally there should be no voltage between the neutral and ground wires in an electrical system.
If in the three phase connection phase to phase voltage is 400v what will be the phase neutral voltage?
The formula to use is, phase voltage /1.73 = phase to neutral (ground) voltage.CommentThere is no such thing as a 'phase to phase', or 'phase to neutral' voltage. The correct terms are 'line to line' and 'line to neutral'. So the above answer should read: line voltage/1.73= line to neutral voltage = phase voltage.
It is defined as the common reference point in an electric circuit from which voltage is measured?
A Neutral, Common, or Ground.
What is the voltage-to-ground on a 4160 V delta circuit?
There should be no voltage to ground on a delta system. That is the reason that these types of systems have to have a set of grounding lights to warn when the system inadvertently grounds. A delta system is a three wire connection, no neutral. A voltage to ground is only available on a three phase four wire (star or wye) connection system. The fourth wire being a neutral which is grounded thereby giving a voltage from each leg to neutral.
Why does your panel have a neutral but no ground?
Just checked and it does have a ground connection.
Why no electric shock from neutral line?
There is normally no voltage on the neutral line because the neutral line is grounded. However, and this is always important, do not assume that neutral is grounded, nor that there is not an elevated voltage on neutral or ground due to a possible ground fault.
Could the neutral point voltage be like phase voltage?
Yes,when the neutral potential is at ground potential i.e., 0v.
Could a neutral wire be powered?
There should be zero voltage between neutral and ground.
Does voltage on ground mean open ground?
Voltage on ground can mean an open ground. It can also mean (high) current on ground, due to a ground fault such as reversed neutral and ground.
