- over-frequency relay
- Техника: реле повышения частоты
Универсальный англо-русский словарь. Академик.ру. 2011.
over-frequency relay
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Frequency frogging — In telecommunication, the term frequency frogging has the following meanings: 1. The interchanging of the frequencies of carrier channels to accomplish specific purposes, such as to prevent feedback and oscillation, to reduce crosstalk, and to… … Wikipedia
Digital protective relay — In electrical engineering of power systems, a digital protective relay uses a microcontroller with software based protection algorithms for the detection of electrical faults. Such relays are also termed as microprocessor type protective relays.… … Wikipedia
Broadcast relay station — A broadcast relay station, relay transmitter, broadcast translator (U.S.), rebroadcaster (Canada), or repeater (two way radio) is a broadcast transmitter which relays or repeats the signal of another radio station or television station, usually… … Wikipedia
Microwave radio relay — is a technology for transmitting digital and analog signals, such as long distance telephone calls and the relay of television programs to transmitters, between two locations on a line of sight radio path. In microwave radio relay, radio waves… … Wikipedia
Protective relay — See also: Power system protection In electrical engineering, a protective relay is a complex electromechanical apparatus, often with more than one coil, designed to calculate operating conditions on an electrical circuit and trip circuit breakers … Wikipedia
Ultra high frequency — (UHF) designates a range (band) of electromagnetic waves with frequencies between 300 MHz and 3 GHz (3,000 MHz). Also known as the decimeter band or decimeter wave as the wavelengths range from ten to one decimeters. Radio waves with frequencies… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Wire spring relay — A wire spring relay is a type of relay, primarily manufactured by the Western Electric Company for use by the Bell System in electromechanical telephone exchanges. It was licenced for use around the world, and was commonplace in Japan. A wire… … Wikipedia
Airborne radio relay — is a technique employing aircraft fitted with radio relay stations for the purpose of increasing the range, flexibility, or physical security of communications systems. [ [http://www.its.bldrdoc.gov/fs 1037/dir 002/ 0220.htm Definition: airborne… … Wikipedia
Concerns and controversies over the 2010 Commonwealth Games — 2010 Commonwealth Games Venues Theme song Concerns and controversies Queen s Baton Relay Opening ceremony Participating nations Medal table (medalist … Wikipedia
PJM Interconnection — LLC (PJM) is a Regional Transmission Organization (RTO) which operates the electric transmission system serving all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee,… … Wikipedia
