answersLogoWhite

0

The two wires carrying a standard ac power supply are the live and the neutral. By convention one of the two wires is earthed at the transformer providing the supply. That then becomes the neutral and the other wire is the live.

User Avatar

Wiki User

12y ago

What else can I help you with?

Related Questions

What is the power line voltage between phase and earthing?

It is the same as phase to neutral. As the neutral is earthed at the electricity suppliers transformer.


Where you have select unearthed cable?

Earthed cables shall be used wherever the syem Neutral grounding Solidly. Vise versa-Un earthed cable shall be used wherever the syem Neutral grounding through NER or Reactance.


What purpose do three prongs serve on an electrical plug?

One is live, one neutral, and one earthed.


Why live and neutral wire essential for proper working of electrical circuit?

Two wires are always needed to supply electrical equipment so that the current has a complete circuit to flow in. One of the wires is earthed at the supply transformer, that one is called the neutral, and the other one is the live.


Why neutral is earthed?

Neutral earth is very necessary for observe the unbalaced laod of the 3 phase system. it is also useful for single phase supply and in lighting purpose. neutral earth is also earthed the short ciruit fauly current , which is flowing through neutral. this type it is very essencial for protection and safety purpose.AnswerThere are a number of reasons why the neutral of a supply is earthed (grounded). The first reason is to protect the low-voltage secondary side of the distribution tranformer in the event of a short circuit from the high-voltage secondary side (it will cause the protection on the high-voltage side to disconnect the transformer). The second reason is to establish a datum point for potentials measured on the secondary side of the tranformers -in particular, if the star-point of a three-phase transformer is not earthed, then an unbalanced load will result in unbalanced supply phase voltages, and a potential-difference between neutral and earth -both undesirable and dangerous.


When was Earthed to the Ground created?

Earthed to the Ground was created in 1984-05.


Why zero sequence current cannot flow through a star connected machine unless the neutral is grounded?

If the neutral point is not earthed than the zero sequence current will not have any return path.It will be an open circuit for the zero sequence circuit.


Is a true solution always neutral?

not always


Is rational numbers always neutral?

That depends what you mean by "neutral".


Is a neutral object always neutral?

No.It'll depend on the situation it is in.


Can delta connection be used on 3 phase 4 wire system?

A delta connected appliance can be connected to a 3-phase system by leaving the neutral unconnected. The appliance must be properly earthed.


Can insulator be earthed?

yes