Volt drop Harmonic

There are many commercially available computer programs for calculating fault currents. Some programs include other features such as load flow, harmonic penetration, transient stability, motor starting and volt-drop calcnlations, since these features tend to use the same database. Usually a program that calculates fault currents will have several special features for different types of fanlts e.g.,... 

These harmonics will cause two secondary problems. Firstly, the harmonic currents will flow in cables, transformers and generator windings and in so doing will immediately produce harmonic volt-drops in these series circuits. This in turn will cause the voltages at various points in the system to contain harmonic components, e.g. either side of a transformer, at motor control centres and... 

Figure 19. Peak faradaic admittance spectra for Cd2+/Cd(Hg) system after nonfaradaic compensation. System DME-aqueous 1.0 M ZnS04, 0.18 M H2SO4 at 25°C. Applied Pseudo-random odd-harmonic a.c. waveform with 1.5 mV per frequency component, 26 components superimposed on d.c. voltage of 0.523 volt vs. Ag/AgCl (saturated NaCl). Measured Average of 10 replicates at 3.0 s in life of mechanically controlled drop life. A = phase angle cotangent. B = total admittance spectrum.

Figure 24. FFT-FAM data obtained with a 0.25 s drop life and an aprotic organic solvent system. System DME-0.10 tetraethyl ammonium perfluoroborate, 5.0 x 10" testosterone, CH3CN interface at 25"C. Applied Pseudo-random odd-harmonic a.c. waveform with 34 frequency components and 1.5 mV amplitude per component, superimposed on a staircase d.c. potential function which is synchronized to the DME drop life. D.C. potentials are in volts vs. Ag/AgI (1.0 TBAI, CH3CN).

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See also in sourсe #XX -- [ ]

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