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1 direct-current voltage
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High-voltage direct current — HVDC or high voltage, direct current electric power transmission systems contrast with the more common alternating current systems as a means for the bulk transmission of electrical power. The modern form of HVDC transmission uses technology… … Wikipedia
Direct current — (red curve). The horizontal axis measures time; the vertical, current or voltage. Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and… … Wikipedia
direct-current voltage — nuolatinė įtampa statusas T sritis automatika atitikmenys: angl. direct voltage; direct current voltage vok. Gleichspannung, f rus. постоянное напряжение, n pranc. tension continue, f … Automatikos terminų žodynas
direct-current voltage — nuolatinė įtampa statusas T sritis Standartizacija ir metrologija apibrėžtis Įtampa, kurios poliškumas ir vertė laikui bėgant nekinta. atitikmenys: angl. direct voltage; direct current voltage vok. Gleichspannung, f rus. постоянное напряжение, n… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
direct-current voltage — nuolatinė įtampa statusas T sritis fizika atitikmenys: angl. direct current voltage vok. Gleichspannung, f rus. постоянное напряжение, n pranc. tension continue, f … Fizikos terminų žodynas
Direct Current — (DC) Electric that flows continuously in the same direction. A type of electricity transmission and distribution by which electricity flows in one direction through the conductor; usually relatively low voltage and high current; typically… … Energy terms
direct voltage — nuolatinė įtampa statusas T sritis automatika atitikmenys: angl. direct voltage; direct current voltage vok. Gleichspannung, f rus. постоянное напряжение, n pranc. tension continue, f … Automatikos terminų žodynas
direct voltage — nuolatinė įtampa statusas T sritis Standartizacija ir metrologija apibrėžtis Įtampa, kurios poliškumas ir vertė laikui bėgant nekinta. atitikmenys: angl. direct voltage; direct current voltage vok. Gleichspannung, f rus. постоянное напряжение, n… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
Direct torque control — (DTC) is one method used in variable frequency drives to control the torque (and thus finally the speed) of three phase AC electric motors. This involves calculating an estimate of the motor s magnetic flux and torque based on the measured… … Wikipedia
Voltage drop — is the reduction in voltage in an electrical circuit between the source and load. In electrical wiring national and local electrical codes may set guidelines for maximum voltage drop allowed in a circuit, to ensure reasonable efficiency of… … Wikipedia
Direct Digital Control — (DDC) refers to the ability to control HVAC (Heating, Ventilating, and Air Conditioning) devices via microprocessors containing a software performing the control logic. DDC receive analog and digital inputs from the sensors and devices installed… … Wikipedia