Electrical Contactor Working Principle Pdf

A contactor is an electrically controlled switch used for switching an electrical power circuit.

Electrical contactor working principle pdf.

1 what is a contactor in electrical terms. In most cases the contactors are connected in normally open contacts and the relays are connected as normally closed contacts. A contactor is a relay that is used for switching power. The size of the contactor is large compared to the size of the relay.

A contactor is controlled by a circuit which has a much lower power level than the switched circuit. How the contactor operates operating principle of a contactor. The maintenance of contactor is easy while in most of the conditions the relay cannot repair. This video explains the principle of operation of contactors.

When a contact is welded. The excited electromagnet produces a magnetic field causing the contactor core to move the armature. A contactor is typically controlled by a. At the same time it is necessary to ensure that the contact gaps are at least 0 5 mm over the lifespan even when defective e g.

In process industries a contactor is a vessel where two streams interact for example air and liquid. 2 operating principle of a contactor 3 functions of a contactor 4 types of contactors 4 1 magnetic contactors 4 2 knife blade switch 4 3 manual controller 5 differences between a contactor and a relay. Contactor relays dil two contactor relay series are available as. Contacts and n o contacts can never be closed simultaneously.

كيف يعمل قواطع contactors are electrically controlled switching devices used for switching of e. Low voltage contactor is an electrically controlled switch used for switching an electrical power circuit similar to a relay except with higher current ratings. In semiconductor testing contactors can also be referred to as the specialized socket that connects the device under test. Magnetic contactor working principle in english how mc works with animation earth bondhon a contactor is an electrically controlled switch relay used f.

A normally closed nc contact completes the circuit between the fixed contacts and the moving contacts. The current passing through the contactor excites the electromagnet.