Line trap

[2] The main coil is the outer part of the line trap which is made from stranded aluminum cable.

The cooling duct is created with spacer bars made out of epoxy resin and fiberglass.

This unit prevents the high frequency carrier signal from entering the neighboring line.

The impedance of a line trap is very low at the power frequency and will not cause any significant voltage drop.

[5][6] Power line carrier communication (PLCC) technology has been frequently used since 1950 by the grid stations to transmit information at high speed.

Transmitting information along high-voltage lines, at high frequency, has been one of the main means of communication in electric power for over fifty years.

The data collected from different sensors is transmitted on power lines thereby reducing the maintenance cost of the additional wiring.

Line traps consist of filter circuits that allow only power frequency waves to travel to that of electrical equipment.

High frequency line traps have a temperature limit of 115 °C-180 °C depending on construction and manufacture.