资讯
Of course, at DC, a capacitor doesn’t conduct any better than the insulator used as its dielectric. However, a DC voltage has to start sometime and when it does, it briefly looks like AC.
Capacitors connected from line to neutral provide reactive power to an AC circuit, which is measured in volt-amperes reactive (VARs). For a given value of capacitance, more VARs are supplied as the ...
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