HHV-25FR-52-215K

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Through Hole Resistors are components that are used to limit current to a specific value for each device. HHV-25FR-52-215K is one of the most common downhole resistors available today. It is used to provide high voltage isolation and can handle a wide range of currents. Its versatile applications and reliable performance make it a widely used resistor in many industries, especially in downhole drilling operations.

HHV-25FR-52-215K is basically a non-inductive resistor that is capable of handling up to 25 kV and is constructed using a stack of aluminum oxide (Al2O3) ceramics. This type of ceramic has an exceptionally high dielectric strength which permits a great amount of range in the electrical current it can handle. Each individual layer has a designated and consistent sheet resistance and the total amount of resistance is obtained by applying an insulation coating to the ceramic series of plates. The layers are oriented along the length of the resistor, which ensures a precise resistance value.

HHV-25FR-52-215K is typically used in high voltage applications that require up to 25 kV. It is mainly utilized in transformers, switching installations, high voltage motors, switchgear and instrumentation, among other applications. Since it has a high resistance value, it can be used to limit the amount of current that is required for operation. Additionally, its construction of the ceramic plates with coating adds mechanical strength to the assembly. This helps it resist shock and vibrations, which is important for downhole drilling equipment.

The working principle of the HHV-25FR-52-215K is relatively simple. It works on the principle of current regulation where the voltage across the resistor is determined by the product of the resistance and current. By controlling the current, it is possible to limit the voltage produced. As the current passes through the resistor, not all of it is used. The excess current is regulated and discharged to ground to reduce the amount of voltage produced. This works by using the ceramic layers as the backbone of the resistor as well as the insulation coating to regulate the current from the source.

In summary, the HHV-25FR-52-215K is a through-hole resistor that provides high voltage isolation and limits current to a desired level. It is highly reliable, versatile, and can be used in applications that require high levels of current-limiting. Its strong mechanical structure aids in providing protection against shock and vibration for downhole drilling operations. Finally, its working principle is based on current regulation, which regulates the current to reduce the amount of voltage produced.

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