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frequency conversion unit

См. также в других словарях:

  • Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) …   Wikipedia

  • Conversion of units — is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Contents 1 Techniques 1.1 Process 1.2 Multiplication factors …   Wikipedia

  • Frequency changer — A frequency changer or frequency converter is an electronic device that converts alternating current (AC) of one frequency to alternating current of another frequency. The device may also change the voltage, but if it does, that is incidental to… …   Wikipedia

  • Electric power conversion — In electrical engineering, power conversion has a more specific meaning, namely converting electric power from one form to another. This could be as simple as a transformer to change the voltage of AC power, but also includes far more complex… …   Wikipedia

  • Astronomical unit — This article is about unit of length. For the full system of units, see Astronomical system of units. 1 astronomical unit = SI units 149.60×10^6 km 149.60×10^9 m Astronomical units 4.8481 …   Wikipedia

  • Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… …   Wikipedia

  • Conventional electrical unit — A conventional electrical unit (is also know as a electrical symbol) (or simply conventional unit where there is no risk of ambiguity) is a unit of measurement in the field of electricity which is based on the conventional values of the Josephson …   Wikipedia

  • Tesla (unit) — The tesla (symbol T) is the SI derived unit of magnetic field B (which is also known as magnetic flux density ). One tesla is equal to one weber per square meter, and it was defined in 1960[1] in honour of the inventor, physicist, and electrical… …   Wikipedia

  • Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… …   Wikipedia

  • Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… …   Wikipedia

  • Diesel multiple unit — Multiple unit trains Subtypes Electric multiple unit Diesel multiple unit Push–pull train Technology Multiple unit train control By Country …   Wikipedia

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