In the process of using capacitance, we must pay attention to grasp the measurement method of capacitance. This is the key to identifying good or bad capacitors. So, what are the methods for measuring film capacitance?...

Because of the unique characteristics of CBB capacitors, the scope of application is very wide. CBB capacitors not only can resist high voltage and large current impact, but also have the characteristics of low loss, excellent electrical performance and high reliability. So, where are CBB capacitors suitable for use?...

Cbb capacitors can be roughly divided into: 1. Winding type, 2. Laminated type, 3. Electrolytic type according to their component structure. The electrolytic type is divided into aluminum and tantalum. Aluminum is divided into liquid electrolyte and solid electrolyte...

The capacitor is a complicated thing because it is composed of many basic components. Due to the raw materials and manufacturing process, the capacitor medium produced by many small factories is prone to impurities, mechanical damage, pinholes, and low cleanliness...

The discharge process is the process of discharging the stored charge by the capacitor. When the charging capacitor is in a closed path without a power source, the charge on the negatively charged metal plate will be positively charged under the action of the electric field force...

1. General characteristics parameter selection requirements

(1) Model

Generally used in the circuit for low frequency coupling, bypass decoupling, etc. When the performance requirements are not strict, paper dielectric capacitors and electrolytic capacitors can be used...

The accuracy of the capacitor mostly refers to the error range of the capacity. Why does the accuracy of the capacitor exist? This is because the capacitor produced will always have a certain error from the original specified capacity...

CBB capacitors mainly have the following advantages: extremely low loss; low dielectric absorption coefficient; high insulation resistance; good frequency characteristics; excellent self-healing and high stability...

Running capacitance: it is to form an alternating magnetic field by connecting the alternating current to the secondary winding after phase shifting...

Let us first assume that there are two electrode plates placed parallel to A and B. The gap between them is made of insulating material such as air. Then a switch S is connected to the DC source E in the middle...

The safety protection performance of the CBB capacitor, after the capacitor is charged, the power supply is closed, and the charge in the CBB capacitor can still be stored for a long time. This charge is sufficient to cause electric shock or damage the connected equipment...

CBB capacitors use a metal foil as an electrode, which is overlapped with polypropylene film from both ends and wound into a cylindrical structure. The principle is the same as that of polyester capacitors...

Metal film CBB capacitors have high reliability and self-healing. As long as the circuit design is reasonable and the specifications are selected correctly, the capacitor is not easily damaged...

When the motor starts, a starting capacitor with a larger capacitance is disconnected from the circuit under the action of the centrifugal switch to complete its task, leaving the running capacitor still connected in series in the starting winding of the motor to work...

When the single-phase motor is working, it will involve the problems of starting capacitor and running capacitor. Because single-phase electricity is different from three-phase electricity, a single-phase motor cannot form a rotating magnetic field when it is started, and uses the characteristic of the current in the capacitor to generate a rotating magnetic field to start the motor...

CBB capacitors are polypropylene film capacitors and have no polarity. There is no need to distinguish between positive and negative poles. Among the common types of capacitors, only electrolytic capacitors need to distinguish between positive and negative poles...

A metallized film capacitor is a metallized film capacitor composed of a double-sided metallized polypropylene film and a non-metallized polypropylene film that are rolled or laminated.

The film capacitor has many excellent characteristics, so it is an excellent capacitor...