BFC238022683

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Film Capacitors

BFC238022683 is one type of film capacitors, it is mainly used in power electronics. It is sometimes also referred to as a stacked film capacitors. This type of capacitors consist of two stack of film separated by separators between them.

Application Field

BFC238022683 can provide charge and energy storage for pulse-shaped electrical loads. It is mainly used in power electronics such as inverters, DC/AC converters, UPS systems, motor drives and welding machines. This type of capacitors can also be used in high-voltage installations and high-voltage motors due to its high dielectric strength up to 4500 Vac.

Working Principle

The inner plate of BFC238022683 is a plastic film with an aluminum coating which acts as an electrolyte. The outer plate of the capacitor is also a plastic film which is connected to ground or supply line. Inside the capacitor are two or more layers of the plastic film separated by separators, creating a stack of capacitors. The plate layers acts more like two equal capacitors that are connected in series to each other.

When voltage is applied across the two plates of the BFC23 822 683, the electrical field increases the charge in each plate. The charge in each plate has an effect on the other plate and so the charge keeps increasing until the dielectric saturates. This process is called dielectric saturation, which is what occurs when the dielectric can no longer increase its charge even though the applied voltage is maintained. When the dielectric is saturated, the capacitors can no longer store energy.

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