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The conductors between a voltage source and a load are called lines, and the voltage between any two lines is called line voltage. The voltage measured between any line and neutral is called phase voltage. [4] For example, for a 208/120-volt service, the line voltage is 208 volts, and the phase voltage is 120 volts.
The volt-ampere (SI symbol: VA, [1] sometimes V⋅A or V A) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes). [2] Volt-amperes are usually used for analyzing alternating current (AC) circuits.
volt: V joule per coulomb kg⋅m 2 ⋅s −3 ⋅A −1: Electrical resistance: ohm: Ω volt per ampere kg⋅m 2 ⋅s −3 ⋅A −2: Electrical conductance: siemens: S ampere per volt or inverse ohm s 3 ⋅A 2 ⋅kg −1 ⋅m −2: Electrical inductance: henry: H ohm second kg⋅m 2 ⋅s −2 ⋅A −2: Electrical capacitance: farad: F coulomb ...
One voltage cycle of a three-phase system, labeled 0 to 360° (2π radians) along the time axis. The plotted line represents the variation of instantaneous voltage (or current) with respect to time. This cycle repeats with a frequency that depends on the power system.
Used in many LED flashlights. Nominal voltage is 3.7 V. Variants include: ... 15-volt: Fuji W10 Mallory M154 NEDA 220 Rayovac 220 10F15 (Zn/MnO 2) 220: 65: 15 V (10 ...
All NEMA 6 devices are three-wire grounding devices (hot-hot-ground) used for 208 and 240 V circuits and rated for 250 V maximum, with the 6-15, 6-20 and 6-30 being grounding versions of the 2-15, 2-20 and 2-30, respectively. The 6-15 resembles the 5-15, but with collinear horizontal pins, spaced 23 ⁄ 32 in (18.3 mm) center-to-center. The 20 ...
The volt (symbol: V) is the unit of electric potential, electric potential difference ... This page was last edited on 20 December 2024, at 15:09 (UTC).
Usually the voltage of 230 V ±3% is maintained. Some areas of the UK still have 250 volts for legacy reasons [citation needed], but these also fall within the 10% tolerance band of 230 volts. In practice, this allowed countries to have supplied the same voltage (220 or 240 V), at least until existing supply transformers are replaced.