volt-face - определение. Что такое volt-face
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Что (кто) такое volt-face - определение

SI UNIT OF APPARENT POWER IN AN ELECTRICAL CIRCUIT
Volt-ampere reactive; Volt-amp; Volt ampere; VAr; Volt amps; Volt Ampere; MVAr; Volt-amps; Voltamps; Volt amp; Kvarh; Volt Amp; Volt-Amp; Kilovolt-ampere; Megavolt ampere; Kilovar; Volt-amperes reactive; Volt-amperes; Volt-Amp Reactance; Voltampere; Megavolt-ampere

Volt ampere         
·add. ·- 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.
Volt-ampere         
A volt-ampere (SI symbol: V⋅A or V A, simplified as VA) is the unit for the apparent power in an electrical circuit. The apparent power equals the product of root mean square voltage (in volts) and root mean square current (in amperes).
Face (mining)         
MINING TERM FOR THE SURFACE WHERE THE MINING WORK IS ADVANCING
Coal face; Mine face; Pit face
In mining, the face is the surface where the mining work is advancing. In surface mining it is commonly called pit face, in underground mining a common term is mine face.

Википедия

Volt-ampere

A volt-ampere (SI symbol: V⋅A or V A, simplified as VA) is the unit for the apparent power in an electrical circuit. The apparent power equals the product of root mean square voltage (in volts) and root mean square current (in amperes). Volt-amperes are usually used for analyzing alternating current (AC) circuits. In direct current (DC) circuits, this product is equal to the real power, in watts. The volt-ampere is dimensionally equivalent to the watt: in SI units, 1 V⋅A = 1 W). VA rating is most used for generators and transformers (and other power handling equipment) where loads may be reactive (inductive or capacitive).

Примеры употребления для volt-face
1. Her volt face cannot be construed otherwise than an untrustworthy despicable act.