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Why in electrical wiring you need both neutral and ground if neutral is zero voltage why you cannot used it as a ground?
Wiki User
∙ 11y ago
The neutral is a current-carrying conductor, the grounding wire is not; it is for safety as an ALTERNATE path to ground.
For example, if something happens to disconnect the neutral or if the hot side comes into contact with conductive portions of an appliance, the grounding conductor can save a life by providing a safe fault mechanism.
Wiki User
∙ 11y ago
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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.
Could the neutral point voltage be like phase voltage?
Yes,when the neutral potential is at ground potential i.e., 0v.
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.
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.
How do you get 277 volts from a 480 volt line?
All three phase four wire systems have the ability to produce a voltage to ground or neutral. Take any phase voltage be it primary or secondary and divide it by the sq. root of 3 which equals (1.73) and you will obtain the phase to ground or neutral voltage. The ground and neutral should be of the same potential and when talking about electrical installations these two words get interchanged quite often. Some three phase secondary voltages are 208, 480 and 600 volts. Electricians will talk about voltages of 120/208, 277/480 and 347/600. The first number is the phase to neutral voltage and the second number is the phase to phase voltage.
What is the meaning of the term volts to ground in house wiring?
Answer for USA, Canada and countries running a 60 Hertz supply service.Not only house wiring but in any electrical installation it is an electrical term that refers to the amount of "voltage to ground" as compared to the term of "voltage to neutral". In troubleshooting scenario's one can not always be checking voltage points back to the neutral because of physical length from the neutral point. All legal electrical equipment connections are grounded. The ground is grounded at the neutral bar in the distribution panel making it a common point. Even though you can not always access a neutral in the field there will always be a "hot" voltage to metallic grounded equipment to check for voltage at that point. This makes troubleshooting faulty equipment much easier.
What can happen if a utility-sized electrical generator has an ungrounded neutral?
What you need to define is the statement "utility- sized electrical generator". It depends on what the generators output is used for as to the way it is internally wired. In some configurations there is no neutral to ground as in a Delta configuration.If the generator is configured for a Wye output and the neutral centre tap is not grounded there will be a floating voltage between the generator and the utility system ground. It is for this reason that the generator's neutral point is grounded to bring the floating voltage down to zero volts to ground.
Define earth voltage and neutral voltage?
As the neutral point of an electrical supply system is often connected to earth ground, ground and neutral are closely related. Under certain conditions, a conductor used to connect to a system neutral is also used for grounding (earthing) of equipment and structures. Current carried on a grounding conductor can result in objectionable or dangerous voltages appearing on equipment enclosures, so the installation of grounding conductors and neutral conductors is carefully defined in electrical regulations. Where a neutral conductor is used also to connect equipment enclosures to earth, care must be taken that the neutral conductor never rises to a high voltage with respect to local ground.
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.
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.
How can the flow of electrons in an electrical circuit change without the neutral becoming hot ex. AC Power?
The neutral conductor is bonded to ground, and is therefore always at earth potential, which is the zero-reference for voltage.
Is it OK illegal or dangerous to connect the neutral to ground to make the circuit work?
If you have to connect the neutral to ground to make the circuit work then you have an open neutral in your circuit. Be careful in handling the neutral as there can be voltage potential on the neutral if a load is connected. In a properly wired home that has been inspected by the local electrical inspector the neutral should be bonded to the ground at the main service distribution point. There will be a green screw that projects through the neutral bus and is threaded into the back of the electrical panel. This should be the one and only place in the whole electrical system where this neutral to ground connection takes place. Dangerous!!!!! The ground is the safety to prevent you from getting shocked due to a malfunctioning piece of equipment. By using the ground for a neutral you will be energizing the entire ground system of you house or business. Thus anything with metal on it and a ground wire going to it will be electrified if the ground fails at the breaker box or building ground rod. Do you want to take this risk? Not I..........
Could a neutral wire be powered?
There should be zero voltage between neutral and ground.
How do you reduce neutral and earth voltage up to 0 volts?
If you are reading a voltage it is the drop across the resistance to ground. To get rid of the voltage get the resistance lower. This can be accomplished by installing more ground rods to the grounding system. Utility companies usually like 3 ohms to ground or less.
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.
Is the drain wire in medium to high voltage applications considered a neutral or ground?
ground
