7355-H

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Common Mode Chokes are electrical components that are designed to minimize Common Mode noise from power lines. 7355-H is a type of Common Mode Choke, which has a particular application in reducing noise in various devices, such as electric motors, fans, pumps, and other machinery.

The 7355-H choke consists of two E-type cores, each with three air gaps. The three air gaps divide the core into 4 sections – one on each side, with the middle two sections overlapping. This configuration allows for two sets of inductance coils to be wound on the core. The inner coils are wound with two windings per section and the outer coils are wound. The inner coils are connected in series and the outer coils are connected in parallel.

When an electrical current passes through the 7355-H, it creates a magnetic field, which in turn creates an inductance. The inductance is responsible for preventing the noise from the equipment circuits from entering the power supply. This is accomplished by diverting the circulating currents to the choke, instead of allowing it to pass into the power supply. The choke also works to reduce the resistance of the power supply, thereby improving the stability and reliability of the system.

Due to the two sets of coils, the 7355-H also provides ferromagnetic shielding. This is achieved by two separately wound coils that are connected in series. The inner coil blocks the magnetic field generated from the equipment circuit, while the outer coil blocks the magnetic field generated by the power supply. This prevents the two magnetic fields from interacting and thus reduces radiated noise.

The 7355-H is also able to reduce power line harmonic currents. The current generated by the equipment is diverted to the choke, where it is then currents through the coils in the core, which produces an opposing field. The opposing field reduces the harmonic currents, which in turn reduces power line noise and improves the efficiency of the unit.

In addition, the 7355-H also provides a high level of mechanical strength. The two cores are constructed from steel, which is resistant to rust and corrosion. The windings are insulated to protect them from heat, which can cause shorts or breakdowns. The windings are also designed to be resistant to vibration, which helps to ensure that there is no movement of the windings during operation.

Overall, the 7355-H is an effective and reliable choice for reducing noise in various machinery. It is capable of handling a wide range of electrical currents, has a high level of mechanical strength, and provides ferromagnetic shielding. It can also reduce power line harmonic currents, which helps to improve the efficiency of the unit.

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