1. Look: Check whether the capacitor is bulging or swelling; 2. Listen: Connect the motor and listen to see if there is a buzzing sound from the motor. Turn the rotor by hand to rotate slowly and weakly; 3. Smell: Some capacitors are burnt due to excessive current and have a burning smell

The ac motor of an electric fan generally requires a starting capacitor. The capacitance mainly depends on the capacity and voltage resistance value.How to choose the withstand voltage value of electric fan starting capacitor?In order to ensure that the electric fan can operate reliably and stably,

A: What impact does the starting capacitor have on the crystal oscillator output frequency?Q: Mainly frequency correction. Explanations:1. The larger the starting capacitance, the more negative the frequency of the crystal oscillator is; conversely, the smaller the starting capacitance is, the more

How to buy air conditioner capacitors1. When purchasing a capacitor, first observe the appearance of the capacitor to see if it is deformed or cracked. If so, do not buy it. There must be quality problems. In addition, you should also pay attention to see if it is the same model as the previous one.

There are many types of film capacitors, mainly polyethylene capacitors, polypropylene capacitors, polystyrene capacitors and polycarbonate capacitors. So do you know what small high-voltage film capacitors are? Don’t worry, the editor will tell you about it below.Small structure film capacitors inv

Technology is developing, telecommunication technology is changing with each passing day, and the demand for consumer electronics products is growing, which makes the chip capacitor industry move forward rapidly. China has now become a major producer of capacitors in the world. While we are proud of

The common fault phenomena of fixed capacitors are leakage, short circuit, open circuit, poor contact of the internal leads of the capacitor (the connection between the pole piece and the lead), etc. Especially electrolytic capacitors, their failure rate is much higher than other types of capacitors

1. Ceramic chip capacitorAdvantages: small size, high voltage resistance, low price, high frequency (one type is a high-frequency capacitor)Disadvantages: Fragile! low capacityPurpose: high-frequency oscillation, resonance, decoupling, audio.2. Monolithic capacitorAdvantages: large capacitance, smal

Usually the current flowing through the capacitor is proportional to the applied current: I=2nfcu, ampere. The compensation capacitance of the capacitor is proportional to the square of the applied voltage: Q=2nfcuu, kvar. Therefore, if the voltage rating of the capacitor does not match the supply v

一：There are certain limits on the temperature of the capacitor and its shell, but some reasons may cause the capacitor temperature to be too high:① Due to the unreasonable design of the capacitor room, the ambient temperature of the capacitor room is too high;②The density of capacitor arrangement is