0
Presumably, you are asking the purpose of a neutral conductor, rather than 'contactor'?
A alternating-current supply has two conductors, a lineconductor and a neutral conductor. The line conductor is at system potential (e.g. 230 V in Europe), whereas the neutral conductor is at approximately earth (ground) potential because it is earthed (grounded) at the supply transformer. The neutral conductor acts as the 'return' path to the transformer, carrying the same load current as the line conductor.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
On an electrical three phase contactor what is A1?
A1 is a termination point on a contactor it is an alseriery going to another point.
In the field of electronics what is the meaning of the word contacter?
A contactor is an electrically controlled switch. It is used for switching a power circuit. A contactor is controlled by a circuit which has a much lower power level than the switched circuit.
Why star delta timer required for motor?
The timer is used to give the motor time to reach its running speed at the star voltage. Once the timer times out the star contactor drops out and the delta contactor pulls in.
How many switches can be connected to a contactor coil control circuit?
unlimited
What is the function of an electrical coil in a basic circuit?
There are a couple of examples that come to mind where there is a coil in a circuit. One is, the coil is used as a choke to block harmonics from going down the electrical line. Another example of a coil in the line is the coil in a magnetic contactor. When this coil is energized the contacts of the magnetic contactor close.
What is the difference between an definite purpose contactor and a lighting sontactor?
A definite purpose contactor is designed (and rated) for a specific load. So a lighting contactor is one example of a definite purpose contactor. A motor starter contactor is another example. So, a lighting contactor is a definite purpose contactor, but a definite purpose contactor is not necessarily a lighting contactor (it might be a motor starter, for instance).
How do you put definite purpose contactor?
Depends on where you want to put it! Assuming, that you're asking ~how you'd "install" a Definite purpose contactor.
In parallel operation of diesel generators why one neutral contactor is used?
To avoid possible current loop through multiple neutral points
How many wires to control a mechanically held contactor?
A contactor is a type of switch. However this switch uses electricity to power an electromagnetic coil to switch on or off power. Hence a contactor needs 2 wires - A live/hot wire and a neutral wire. Generally these are connected across the A1 and A2 terminals of the contactor.
What is the purpose of a timer wired into the compressor contactor control circuit on a refrigeration system?
A defrost control typically.
How does magnetic contactor operate?
explain me about the contactor works with examples. if i want to control a motor with contactor. and how i can use contactor in loops with over load and circuit breakers.
How do you calculate contactor capacity of star contactor?
metres
Why you need neutral conductor?
To complete the circuit. The word neutral is a convention it does not mean it has no purpose
How do you do neutralization?
The purpose is to obtain a neutral solution.
Can you use an AC contactor in the place of DC contactor?
No, you definitely cannot.
How relay is used to control induction motor?
If you want to control induction motor using a control relay give neutral directly to the one point of coil of relay & one point of coil of contactor then give control supply through push button to second point of coil of relay. use one NO point of relay and give supply to coil of contactor. and also use one NO of contactor for holding the contactor & take OFF (NC) in the starting to stop motor after complition of work. It is jut like an Direct On-line starter.
Can you put one phase of a three phase ditribution board through a contactor so that the other phases stay on?
Yes, but you must have your neutral wire to form a return path for your current.
