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2. Total harmonic distortion - Wikipedia

   en.wikipedia.org/wiki/Total_harmonic_distortion

   THD+N means total harmonic distortion plus noise. This measurement is much more common and more comparable between devices. This measurement is much more common and more comparable between devices. It is usually measured by inputting a sine wave , notch-filtering the output, and comparing the ratio between the output signal with and without the ...

3. Phase converter - Wikipedia

   en.wikipedia.org/wiki/Phase_converter

   It is a pulse-width modulated (PWM) waveform very high in harmonic distortion. This voltage is then passed through an inductor/capacitor filter system that produces a sine-wave voltage with less than 3% total harmonic distortion (standards for computer grade power allow up to 5% THD). By contrast, VFDs generate a PWM voltage that limits their ...

4. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   One measure of the purity of a sine wave is the total harmonic distortion (THD). [4] Technical standards for commercial power distribution grids require less than 3% THD in the wave shape at the customer's point of connection. IEEE Standard 519 recommends less than 5% THD for systems connecting to a power grid.

5. SINAD - Wikipedia

   en.wikipedia.org/wiki/SINAD

   With this definition, it is possible to have a SINAD level less than one. This definition is used in the calculation of effective number of bits (ENOB) for DACs [3] and ADCs. [4] Information on the relations between SINAD, ENOB, SNR, THD and SFDR can be found in the footnotes of this article. [5]

6. Engine–generator - Wikipedia

   en.wikipedia.org/wiki/Engine–generator

   An engine–generator is the combination of an electrical generator and an engine (prime mover) mounted together to form a single piece of equipment. This combination is also called an engine–generator set or a gen-set. In many contexts, the engine is taken for granted and the combined unit is simply called a generator. An engine–generator ...

7. IEC 61000-3-2 - Wikipedia

   en.wikipedia.org/wiki/IEC_61000-3-2

   IEC 61000-3-2 Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions (equipment input current ≤ 16 A per phase) is an international standard that limits mains voltage distortion by prescribing the maximum value for harmonic currents from the second harmonic up to and including the 40th harmonic current.