Electric Relay Meaning
Electric Relay Meaning
In electromechanical relays, the coil accomplishes this function. A relays Output Circuit is the portion of the relay that switches on the load and performs the same function as the mechanical contacts of electromechanical relays. Solid-state relays, however, normally have only one output contact.
Define relay. relay synonyms, relay pronunciation, relay translation, English dictionary definition of relay. n. 1. An act of passing something along from one person, group, or station to another. ... Electronics A device that responds to a small current or voltage change by activating switches or other devices in an electric circuit. 4.
Relay Symbols and Electromagnets. The relay are switching devices activated by signals. Most of the time, a small voltage or current is used to switch other voltages or higher currents that may be electromechanical or fully electronic type.
Relay definition is - a supply (as of horses) arranged beforehand for successive relief. ... an electromagnetic device for remote or automatic control that is actuated by variation in conditions of an electric circuit and that operates in turn other devices (such as switches) ... in the meaning defined at sense 1a. Verb (2) 1757, in the meaning ...
Relay Construction. A relay is an electromechanical device that consists of a number of parts, including the Coil, core, armature, yoke, contacts, spring and the push-rod. Relay Operation. When a voltage is applied to the coil, a current passes through it and this creates a magnetic circuit which includes the core, armature and the yoke.
24/04/2017 · What Is an Electric Relay? ... Construction. A relay is really a solenoid that is designed to specifically function as a switch. To recall, a solenoid is a long, helical wire that has many loops, and a relatively strong and uniform magnetic field inside of it. A piece of iron may be placed inside to strengthen the field, as is the case of a relay.
Relay definition, a series of persons relieving one another or taking turns; shift. See more.
The National Association of Relay Manufacturers and its successor, the Relay and Switch Industry Association define 23 distinct forms of electrical contact found in relays and switches. Of these contact forms, the following are particularly common: Form A contacts. Form A contacts ("make contacts") are normally open contacts.
02/10/2019 · An electrical relay is a switch that is under the control of another circuit. A classic example is the system used to start a car — when someone turns an ignition key, the ignition does not interact directly with the car battery. Instead, it activates a relay, which passes the …
Relay symbols and device numbers; selection from IEC 617-, IEEE C37.2-1991 and IEEE C37.2-1979 1MRK 590 006-BEN Page 4 Symbols and designations (cont’d) Designations Ir, Ur Rated current, voltage