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apparent power factor

См. также в других словарях:

  • Power factor — For other uses, see Power factor (pistol). The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load over the apparent power in the circuit,[1][2] and is a dimensionless number between 0 and 1… …   Wikipedia

  • power factor — noun The ratio of the actual power to the apparent power in an alternating current power system; specifically, the cosine of the phase angle between the voltage and the current. The power factor is of interest because it is a measure of the power …   Wiktionary

  • Power factor —   The ratio of real power (kilowatt) to apparent power kilovolt ampere for any given load and time.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary   ***   The ratio of the average power and the apparent volt amperes.… …   Energy terms

  • power factor — ratio of the average power divided by the apparent power in an alternating current circuit (Electricity) …   English contemporary dictionary

  • power factor — noun : the ratio of the mean actual power in an alternating current circuit measured in watts to the apparent power measured in volt amperes, being equal to the cosine of the phase difference between electromotive force and current …   Useful english dictionary

  • Power rating — In electrical engineering, the power rating of a device is a guideline set by the manufacturer as a maximum power to be used with that device. This limit is usually set somewhat lower than the level where the device will be damaged, to allow a… …   Wikipedia

  • Power optimization (EDA) — Power optimization refers to the use of electronic design automation tools to optimize (reduce) the power consumption of a digital design, while preserving the functionality.Introduction and historyThe increasing speed and complexity of today’s… …   Wikipedia

  • Apparent magnitude — Asteroid 65 Cybele and 2 stars with their magnitudes labeled The apparent magnitude (m) of a celestial body is a measure of its brightness as seen by an observer on Earth, normalized to the value it would have in the absence of the atmosphere.… …   Wikipedia

  • AC power — This article deals with power in AC systems. See Mains electricity for information on utility supplied AC power. Usually hidden from the unaided eye, the blinking of (non incandescent) lighting powered by AC mains is revealed in this motion… …   Wikipedia

  • Electric power transmission — Electric transmission redirects here. For vehicle transmissions, see diesel electric transmission. 400 kV high tension transmission lines near Madrid Electric power transmission or high voltage electric transmission is the bulk transfer of… …   Wikipedia

  • Electric power — is defined as the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt.When electric current flows in a circuit, it can transfer energy to do mechanical or thermodynamic work. Devices convert… …   Wikipedia

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