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Question:

What is the relay used

What is the relay used

Answer:

A relay is a device that closes or disconnects a circuit by means of the effect of current for automatic protection and automatic control. In most cases, the relay is an electromagnet, and the armature of the electromagnet can close or disconnect one or more points of contact. When there is current in the winding of the electromagnet, the armature is attracted by the electromagnet, thus changing the state of the contact.
May 9, 2017
Give the following three examples: 1, the field of cars     The more common relays are: start-up motor starting relay, loudspeaker relay, motor or generator circuit breaker, charge voltage and current regulation relay, change signal flash relay, light brightness control relay and air conditioning control relay, sliding door automatic opening and closing control Relay; glass window lift control relay.
May 9, 2017
2, household appliances   Air conditioning relays are mainly used to control the compressor motor, fan motor and cooling pump motor to perform the relevant control functions.
May 9, 2017
3, industrial control relays     The main control functions are done by a universal AC relay. The relay is usually driven by a button or limit switch. The contact of the relay can control the solenoid valve, the larger start motor and the indicator light.
May 9, 2017

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