Varistor is a SPD overvoltage protection device, which is an indispensable electronic component in power supply system. It has fast response rate, good absorbing ability of sudden wave, and good anti-burst function. Varistor 10D391K parameter varistor number: 1. Foot distance: 10 MMN 2. Potentia

When the CBB capacitor is in the long-term working environment, it will lead to the evaporation of the metallized coating, thus reducing the capacity. If the working temperature is relatively high, it will also cause the metallization coating to fall off.As a result of the failure of the CBB cap

In single-phase motor, another method of producing rotating magnetic field is called pole mask method, which is also called single-phase cover pole motor. This kind of motor stator is made into salient pole, there are two poles and four poles. Each pole has a small slot at the 1 / 3-1 / 4 full polar

ceramic capacitor or multi-layer ceramic capacitor, MLCC. It is also a kind of ceramic capacitor.Polarity is the difference between positive and negative poles. The non-polar nature is the capacitance without the positive and negative poles. Because of the importance of positive and negative electro

The dielectric strength of a high-voltage ceramic capacitor is the ability of a dielectric material to withstand the action of a high intensity electric field without being subjected to electrical breakdown, usually expressed by volts / Miles or volts / cm / cm / v / cm).When the external electric f

The causes of breakdown of varistor are： 1.The number of overvoltage protection; 2. Working temperature around; 3.Whether the varistor is extruded or not; 4.Whether to pass the quality certification; 5. The surge energy is too large to exceed the absorbed power; 6.not enough voltage; 7. excessive cu

Varistor is a kind of voltage limiting protection device. Using the nonlinear characteristics of the varistor, when the overvoltage appears between the two poles of the varistor, the voltage clamp can be positioned to a relative fixed voltage value, thus the protection of the back stage circuit can

Through the concrete analysis of Flat Response algorithm and Decade Methods algorithm, we can find that these two algorithms have several shortcomings: 1) the choice of the algorithm is limited to a great extent by the capacitive types of the capacitors provided. If enough capacity is given and the

The self resonant frequency of the third capacitor is consistent with the parallel resonant frequency. The self resonant frequency of the third capacitor is located in the middle of the other two self resonant frequencies.Determining which algorithm to choose depends on the capacitor's ESL, ESRs, an

Measurement of Capacitor capacity The capacity of a power capacitor can be measured by a multimeter without a dedicated instrument. The specific method is to connect 220 V AC power supply in series with the fuse (the specification of which is determined by the capacitance of the capacitor) and th