Device for producing a signal corresponding to a variable related to the reactive power of an arc furnace for controlling a reactive power compensator

摘要

device for preparation of a signal corresponding to a variable size associated with the reactive power of an arc furnace for controlling a reactive power compensator.a demodulator includes reactive power and voltage (1), characterized in that said demodulator is followed by a set of filters, band stop filters consisting of assets (3), (5),(7) of a width of about 2% (around 4% of the frequencies, and 6% of active filters and band stop (2, 4) the very narrow band of frequencies around 2 hz to about 3%, and the...fo is the frequency of the supply voltage, and f is the total of the two adjacent filters, followed by a correction circuit with phase advance (11) in the frequency range of 0.