Advantages of film capacitors

Membrane capacitors are widely used in electronics, home appliances, telecommunications, electric power, electrified railways, hybrid vehicles, wind power, solar power generation, etc., and are used in bypass, DC blocking, coupling, decoupling, and pulse. , logic, timing, circuit oscillator, etc., thanks to its superior performance, then what is the superiority of the film capacitor? Let's take a look.

1. Parallel film capacitors, also known as moving film capacitors. It is mainly used to compensate the reactive power of the inductive load of the power system to improve the power factor, improve the voltage quality and reduce the line loss.

2. Series film capacitors are connected in series in power frequency high-voltage transmission and distribution lines to compensate the distribution inductance of the line, improve the static and dynamic stability of the system, improve the voltage quality of the line, lengthen the power transmission distance and increase the transmission. ability.

3. Coupling film capacitors, mainly used for high-frequency communication, measurement, control, protection of high-voltage power lines and components used in devices that extract electrical energy.

4. Circuit breaker film capacitors. Originally known as voltage equalizing capacitors. The voltage equalization is applied in parallel on the fracture of the high-voltage circuit breaker, so that the voltage between the fractures is uniform during the breaking process and the disconnection, and the arc-extinguishing characteristic of the circuit breaker can be improved, and the breaking capacity can be improved.

5. Electrothermal film capacitors. It is used in electric heating equipment systems with a frequency of 40~24000 Hz to improve the power factor and improve the voltage or frequency of the loop.

In general, film capacitors integrate advanced technologies such as modern measurement and control, power electronics, network communication, automation control, and power capacitors. The backward mechanical contactor with the backwardness of the traditional reactive power compensation device has changed the bulky and bulky structural mode of the conventional reactive power compensation device, so that the new generation of low-voltage reactive power compensation device has better compensation effect and smaller volume. The utility model has the advantages of lower power consumption, cheaper unit price, more cost saving, more flexible use, more convenient maintenance, longer service life and higher reliability, and is adapted to the higher requirements of modern power grid for reactive power compensation.