716P22351NA3

Film capacitors, also known as plastic film capacitors, encompass a wide variety of capacitors which include polyester film capacitors, polypropylene film capacitors, polyphenylene sulfide film capacitors and PTFE film capacitors. 716P22351NA3 is one of the most popular and widely used film capacitors on the market. This capacitor is mainly used in AC motors and other high frequency applications, such as renewable energy power conversion, HVAC systems, and other power electronics.

Working Principle

Film capacitors, like most capacitors, work by relying on the principles of electrostatics. Two electrodes, one of them typically made from a conducting material such as aluminum, are separated by a thin dielectric film . This dielectric can be made of polyester, polypropylene, polyphenylene sulfide or PTFE, each with their own unique properties and benefits. By increasing the area of the electrodes, the capacitance of the film capacitor increases, and by altering the thickness of the dielectric, a capacitance range from picofarads to thousands of microfarads can be achieved. As an AC signal is applied to the capacitor, the dielectric material produces a surface charge which stores electric energy proportional to the amplitude of the applied AC signal.

Interface between Film Capacitors and AC Motors

Film capacitors such as 716P22351NA3 find extensive use in AC motors, offering several advantages:

• A high-capacitance-to-weight ratio, especially in the larger capacitors.
• Excellent resistance to temperature shifts, and optimised capacitance as capacity is not affected by aging.
• Due to their low internal resistance and tolerance to high-frequency signals, film capacitors facilitate smoother starting and optimum performance.

The 716P22351NA3 film capacitor is specifically designed to be used in AC motors. The film capacitors effectively shield the power efficiency between the main windings and the auxiliary windings by inducing the necessary AC voltage, regulating the current, and also to suppress the ripple frequency from the power supply. The 716P22351NA3 film capacitor is usually connected in series with the main and auxiliary windings of an AC motor to minimize the harmonic content of the current that runs through the windings.

Conclusion

The 716P22351NA3 film capacitor is one of the most popular and widely used film capacitors for AC motors and other high frequency applications. Its excellent power dissipation and low internal resistance make it the preferred choice for many applications. The ability to regulate current, reduce harmonic content and suppress ripple frequency makes the 716P22351NA3 film capacitor a robust and reliable choice for all types of power electronics.