What is the specific performance of the chip tantalum capacitor?

1. Capacitors are mainly used in AC circuits and pulse circuits. In DC circuits, capacitors generally block DC.

2. Capacitors neither produce nor consume energy and are energy storage components.

3 capacitors in the power system is an important device to improve power factor; In electronic circuit, it is the main component to obtain oscillation, filtering, phase shift, bypass, coupling and so on.

4. Because the load used in industry is mainly the inductive load of the motor, it is necessary to capacitive load to make the power grid balance.

5. On the ground wire, why do some also need to be grounded after passing the capacitor?

A: In the direct current circuit is anti-interference, the interference pulse is grounded through the capacitor (in this case, the role is to isolate the potential relationship in the circuit); Ac circuits also have such ground through capacitors, the general capacity is small, and it is also anti-interference and potential isolation.

6. What is the capacitor feed power factor?

A: Because there needs to be a charging process to establish a voltage on the capacitor, with the charging process, the voltage on the capacitor gradually increases, so that there will be a current first, and then the process of establishing a voltage, usually we call the voltage before the current 90 degrees (when there is no resistance and inductor in the capacitor current loop, it is called a pure capacitor circuit). Motor, transformer and other inductance circuit with coils, because the current through the inductance can not be sudden, it is the opposite of the capacitor, the need to establish a voltage at both ends of the coil, after the current (inductance current loop without resistance and capacitance, called pure inductive circuit), pure inductance circuit current lag voltage 90 degrees. Since power is voltage multiplied by current, when the voltage and current are not generated at the same time (such as: when the voltage on the capacitor is large, the electricity is full and the current is 0; When there is a voltage on the inductor, the inductor current is also 0), so the product (power) obtained is also 0! This is reactive work. Then, the relationship between the voltage and current of the capacitor is exactly the opposite of the relationship between the voltage and current of the inductor, and the capacitor is used to compensate the reactive power generated by the inductor, which is the principle of reactive power compensation.