Insulation Resistance of Capacitance affected by temperature. In general, the insulation resistance of the capacitance decreases with the increase of temperature, and the decrease of the insulation resistance will lead to the increase of leakage current of the capacitance, so the working of the cap

Effect of temperature on Capacitor Life In general, the life of the capacitor is shortened with the increase of temperature, especially for the electrolytic capacitor. An electrolytic capacitor with a limit operating temperature of 85 ℃ can guarantee a normal working time of 181019 hours under the c

There are two reasons for the damage of the capacitor in the washing machine: one is that the washing machine is in the wet environment for a long time so that the capacitor gets dampened and the capacity decreases; The other is that the voltage of the power network is too high, which makes the capa

1. Relationship between capacitor loss and frequency. The loss of polar dielectric capacitors is determined by the dielectric and auxiliary media in the range of low and medium frequency. In general, the loss of conductance occurs in the range of low frequency. In the high frequency range, the loss

Capacitance. The capacitance of a capacitor is a parameter representing the capacity of the capacitor to store charges, which is numerically equal to the ratio of the charge quantity Q stored on the plate to the voltage U added on the plate. Capacity frequency characteristic. The dielectric constant

1. In the situation that surge current is formed repeatedly, the principle that the maximum instantaneous value of surge current and surge energy can not exceed the characteristic of pulse duration after varistor. 2. The varistor is not close to the heating and combustible device. It is suggested th

1. Whether the varistor is extruded or not, the voltage of the varistor decreases obviously until it is zero; 2. Insufficient voltage resistance; 3. Transient overvoltage damage; 4. The number of overvoltage protection; 5. The surge voltage is too large, which is higher than the absorbed power; 6. A

In the single-phase motor, another method of producing rotating magnetic field is named 'Shaded Pole ', also be named 'Single-phase Shaded Pole Motor'. This kind of motor stator is made a type of convex pole, two polar and four poles. There is a small slot which divide the pole into two parts in t

3, capacitor selections in switching power supply need to know the characteristic of capacitance itself. In switching power supply design, the highest frequency capacitance is ceramic capacitor electrolytic capacitor and tantalum capacitor. It needs to understand their characteristic differences to

1.Understanding of capacitance types. Approximate understanding of capacitance types helps to quickly filter capacitor types when selecting capacitance. There are many kinds of capacitors according to the structure situation according to the structure situation which includes ceramic capacitor tanta