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Interpreting recent power quality surveys to define the electrical environment

Interpreting recent power quality surveys to define the electrical environment,Intelligenza Artificiale,D. s. Dorr,M. b. Hughes,T. m. Gruzs,R. e. Jure

Interpreting recent power quality surveys to define the electrical environment   (Citations: 37)
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    • ...Voltage sags are the most important power quality disturbances in industrialized countries due to their significant adverse impact on electronic equipment [1]...

    Bin Wanget al. Voltage sags mitigation with feeder fast-tripping overcurrent protecti...

    • ...With this tolerance envelope plotted on a voltage-versus-duration axes, the data from the expected electrical environment can be overlaid, thereby creating a system compatibility profile that describes how well that product may perform in a standard electrical environment, [3]...
    • ...In [3] is presented a combined assessment of data from three of the most important power quality surveys...

    A. Honrubia Escribanoet al. Analysis of the AC-contactor electrical behavior under voltage dips

    • ...Power quality issues are becoming more and more significant in these days because of the increasing number of power electronic devices that behave as nonlinear loads [1]...

    J. A. Muozet al. A modular approach for integrating harmonic cancellation in a multi-ce...

    • ...0-7803-9360-0/06/$20.00 ©2006 IEEE 1885 after a short period of time, from a few milliseconds up to a few seconds; short interruption: the disappearance of the supply voltage at a point of the LV dc distribution system for a period of time typically not exceeding 1 minute; voltage variation: a gradual change of the supply voltage to a higher or lower value than the rated voltage; the duration of the change can be short or long...
    • ...Here, evaluation of voltage ripple is proposed on three different frequency ranges: 2 kHz (T=500µs) for low frequency phenomena; 20 kHz (T=50µs) to account for conducted disturbances from large power converters; 150 kHz (T=6.7µs) to account for conducted disturbances from small power converters (to be covered in accordance with the immunity counterpart standard EN 61000-4-16 [10]...
    • ...So, at least for the two smallest T values (50µs and 6.7µs) an alternative solution, to avoid too a large sampling frequency, is the use of a band-pass filter applied directly to the analog signal: the lower corner frequency f1 is set low enough to reject the steady state dc component (1 Hz for a 1 second response time); the upper corner frequency f2 is set to 20 kHz and 150 kHz respectively (also 2 kHz for the low frequency ...

    M. Caserza Magroet al. Definition of Power Quality Indices for DC Low Voltage Distribution Ne...

    • ...A great amount of data from this study, and others, is found in [5] and [6]...

    John Horak. Power Quality: Measurements of Sags and Interruptions

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