control-circuit relay

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• Relay logic — is a method of controlling industrial electronic circuits by using relays and contacts. ladder logic The schematic diagrams for relay logic circuits are often called line diagrams, because the inputs and outputs are essentially drawn in a series… …   Wikipedia

• Relay — This article is about the electrical component. For other uses, see Relay (disambiguation). Automotive style miniature relay, dust cover is taken off A relay is an electrically operated switch. Many relays use an electromagnet to operate a… …   Wikipedia

• relay — [rē′lā΄; ] for v., also [ ri lā′] n. [ME relai < MFr relais, pl., orig., hounds kept as reserves at points along the course of a hunt < relaier, to leave behind < re (see RE ) + laier, to leave, let: see DELAY] 1. a fresh supply of dogs …   English World dictionary

• Control relay — A control relay is an electromechanical device which activates one or more switches according to the current through a coil not connected to the switches. The thyristor is a semiconductor device which carries out similar functions.A relay is… …   Wikipedia

• relay — relay1 n. /ree lay/; v. /ree lay, ri lay /, n., v., relayed, relaying. n. 1. a series of persons relieving one another or taking turns; shift. 2. a fresh set of dogs or horses posted in readiness for use in a hunt, on a journey, etc. 3. Sports. a …   Universalium

• Control of the National Grid (UK) — The National Grid (UK) is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations to ensure that electricity generated anywhere in Great Britain can be used to satisfy demand… …   Wikipedia

• Control of the National Grid — The National Grid is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations, and has a synchronized organization such that electricity generated anywhere in Great Britain can be used …   Wikipedia

• Circuit breaker — For other uses, see Circuit breaker (disambiguation). An air circuit breaker for low voltage (less than 1000 volts) power distribution switchgear …   Wikipedia

• relay — I. noun Etymology: Middle English, set of fresh hounds, from relayen Date: 1651 1. a. a supply (as of horses) arranged beforehand for successive relief b. a number of persons who relieve others in some work < worked in relays around the clock > 2 …   New Collegiate Dictionary

• Dynamic Carrier Control — All modern high power (power > 50 kw) shortwave transmitters incorporate Dynamic Carrier Control (DCC) of some kind. History This Amplitude Modulation (and vestigal SSB) modulation energy saving mode was devised in the late 1930s. DCC was not… …   Wikipedia

• Dynamic carrier control — All modern high power (>50 kW) shortwave radio transmitters incorporate dynamic carrier control (DCC) of some kind. In addition, some mediumwave transmitters incorporate DCC. Contents 1 History 2 FAQ 3 Operational usage 4 …   Wikipedia