Line Traps

Line Traps

Line traps are electrical devices used in power transmission systems to filter out high-frequency signals and prevent them from entering or leaving the system. They are typically installed at the boundary between two different power systems, such as between a high-voltage transmission line and a substation, or between two different transmission systems. The primary function of line traps is to provide a high impedance to high-frequency signals, while allowing low-frequency power signals to pass through unimpeded. Line traps are designed to operate at the frequency range of the power system, typically 50 or 60 Hz, and to provide a high impedance to signals above this frequency range. They are typically constructed using a series of inductive and capacitive elements, which together form a resonant circuit that provides a high impedance to signals at the resonant frequency. The inductive elements are typically wound on a magnetic core, while the capacitive elements are formed using plates or tubes of conductive material. Line traps are important components in power transmission systems, as they help to ensure the reliability and stability of the system. They help to prevent unwanted signals, such as radio interference or lightning strikes, from entering the system and causing disruptions or damage. They also help to prevent high-frequency signals generated within the system, such as those caused by switching operations or faults, from propagating outside the system and interfering with other electrical equipment.

electrical devices, power transmission systems, high-frequency signals, impedance, resonant circuit

— Andrew Moore