- frequency demand system
- оросительная система с подачей воды потребителю в любое требуемое время, но с фиксированной продолжительностью
Англо-русский словарь промышленной и научной лексики. 2014.
frequency demand system
Смотреть что такое "frequency demand system" в других словарях:
Frequency-division multiple access — or FDMA is an channel access method that is used by radio systems to share a certain radio spectrum between multiple users. The users are individually allocated one or several frequency bands, allowing them to access the radio system without… … Wikipedia
Demand response — This article is about the electrical concept. For the transport concept, see Demand responsive transport. A clothes dryer using a demand response switch to reduce peak demand In electricity grids, demand response (DR) is similar to dynamic demand … Wikipedia
Demand Assigned Multiple Access — This article is about the information technology. For other uses, see Dama (disambiguation). Demand Assigned Multiple Access (DAMA) is a technology used to assign a channel to clients that don t need to use it constantly. DAMA systems assign… … Wikipedia
Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… … Wikipedia
Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… … Wikipedia
Distribution mangagement system — SCADA systems have been a part of utility automation for at least 15 years and contributing to the decision making process of the control rooms. However, majority of the existing solutions are closely related to distribution network data… … Wikipedia
Power system harmonics — are integer multiples of the fundamental power system frequency. Power system harmonics are created by non linear devices connected to the power system. High levels of power system harmonics can create voltage distortion and power quality… … Wikipedia
Digital Access Carrier System — (DACS) is the name used by British Telecom (BT Group plc) in the United Kingdom for a 0+2 Pair gain system. Two Telspec DACS remote units mounted on a pole Contents 1 Usage … Wikipedia
postal system — System that allows persons to send letters, parcels, or packages to addressees in the same country or abroad. Postal systems are usually government run and paid for by a combination of user charges and government subsidies. There are early… … Universalium
Dynamic demand (electric power) — Dynamic Demand is the name of a semi passive technology for adjusting load demands on an electrical power grid. (It is also the name of an independent not for profit organization in the UK supported by a charitable grant from the Esmée Fairbairn… … Wikipedia
Radio Data System — The RDS Logo Radio Data System, or RDS, is a communications protocol standard for embedding small amounts of digital information in conventional FM radio broadcasts. RDS standardises several types of information transmitted, including time,… … Wikipedia
