volt ampere

volt ampere
(V·A)
   a unit of electrical load used in power engineering. In an alternating current circuit, if the potential (measured in volts) and the current (measured in amperes) vary in phase with each other, then the power delivered (measured in watts) is the product of the potential and the current. In actual circuits, the potential and current are usually out of phase (see var, above), causing the device receiving the power to draw more current than its wattage requirements would suggest. The product of the potential and the actual current is the load, in volt amperes.

Dictionary of units of measurement. 2015.

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  • Volt ampere — Volt amp[ e]re (Elec.) A unit of electric measurement equal to the product of a volt and an ampere. For direct current it is a measure of power and is the same as a watt; for alternating current it is a measure of apparent power. [Webster 1913… …   The Collaborative International Dictionary of English

  • volt-ampere — [vôlt′am′pir΄] n. Elec. the unit of power equal to one volt times one ampere: in a circuit with direct current it represents power equivalent to one watt: abbrev. VA …   English World dictionary

  • volt-ampere — s. m. Nome especial do watt utilizado pela medida de potência aparente de corrente elétrica alternativa (símbolo: VA) …   Dicionário da Língua Portuguesa

  • Volt-ampere — A volt ampere (VA) is the unit used for the apparent power in an electrical circuit, equal to the product of root mean square (RMS) voltage and RMS current.[1] In direct current (DC) circuits, this product is equal to the real power (active… …   Wikipedia

  • volt-ampere — voltamperas statusas T sritis fizika atitikmenys: angl. volt ampere vok. Voltampere, n rus. вольт ампер, m pranc. voltampère, m …   Fizikos terminų žodynas

  • volt-ampere — voltamperas statusas T sritis ekologija ir aplinkotyra apibrėžtis Pilnutinės galios ir reaktyviosios galios matavimo vienetas: V · A. atitikmenys: angl. volt ampere vok. Voltampere, n rus. вольт ампер, m …   Ekologijos terminų aiškinamasis žodynas

  • volt-ampere — volt am·pere vōlt am .pi(ə)ralso .pe(ə)r n a unit of electric measurement equal to the product of a volt and an ampere that for direct current constitutes a measure of power equivalent to a watt …   Medical dictionary

  • volt-ampere — volt′ am′pere n. elm an electric measurement unit, equal to the product of one volt and one ampere, equivalent to one watt for direct current systems and a unit of apparent power for alternating current systems Abbr.: VA • Etymology: 1895–1900 …   From formal English to slang

  • Volt-Ampere-Ohm-Meter — avometras statusas T sritis fizika atitikmenys: angl. avometer; volt ampere ohmmeter; volt ohm ammeter vok. Ampere Volt Ohm Meter, n; Avometer, n; Volt Ampere Ohm Meter, n rus. авометр, m; ампервольтомметр, m; вольтамперомметр, m pranc. ampère… …   Fizikos terminų žodynas

  • volt-ampere-ohmmeter — avometras statusas T sritis fizika atitikmenys: angl. avometer; volt ampere ohmmeter; volt ohm ammeter vok. Ampere Volt Ohm Meter, n; Avometer, n; Volt Ampere Ohm Meter, n rus. авометр, m; ампервольтомметр, m; вольтамперомметр, m pranc. ampère… …   Fizikos terminų žodynas

  • volt-ampere characteristic — voltamperinė charakteristika statusas T sritis automatika atitikmenys: angl. current voltage characteristic; voltage current characteristic; volt ampere characteristic vok. Stromspannungscharakteristik, f; Strom Spannungs Kennlinie, f;… …   Automatikos terminų žodynas

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