What is the capacitive reactance of a safety capacitor?

When the capacitor is physically connected to the AC circuit, the charge on the capacitor plate has a hindrance to the directional moving charge, which is called the capacitive reactance, and is represented by the letter Xc. Generally speaking, a safety capacitor is like a server connected to a network, which can store and delete data. The safety capacitor also has a function of charging and discharging in the circuit, and is an energy storage container.

When the safety capacitor is connected to the AC circuit, since the magnitude and direction of the alternating current change with time, the capacitor is also constantly charged and discharged, and the charge on the plate of the capacitor is directed to the charge that is oriented to move. The hindrance effect, we call this blocking effect the capacitance of the capacitor, expressed in letters, whose size is calculated by the formula Xc = 1/2πfc. According to the formula, we can see that the frequency of the alternating current is high, the capacity of the capacitor is large, and the capacitive reactance of the capacitor is small. Therefore, the capacitor has a function of passing the AC resistance DC, and the high frequency blocking the low frequency.

Why is there something like "tolerance"? When the safety capacitor is connected to the AC power source, when the voltage rises, the charge accumulates on the plate of the capacitor to form a charging current; when the voltage decreases, the charge leaves the plate to form a discharge current. The capacitors are alternately charged and discharged, and there is a current in the circuit that appears as an AC "pass" capacitor. But when we charge the capacitor, the charge accumulated on the two plates will repel the charge that will reach the two plates, so it will hinder the alternating current. This hindrance is the "capacitive reactance".

So what impact does capacitive resistance have? Under the condition of a certain voltage, the capacitance of the safety capacitor is large, and the amount of charge that is charged and discharged in the circuit per unit time is large, and the current will rise too much, so the resistance of the capacitor to the alternating current is small, that is, the capacitive reactance Small; when the voltage of the alternating current is constant, the frequency of the alternating current is high, the charging and discharging are frequent in the circuit, the rate of charge movement per unit time is large, the current is large, and the blocking effect of the capacitor on the alternating current is small, that is, the capacitive reactance small.