METHOD TO PREVENT ICING OF POWER TRANSMISSION LINES AND DEVICE FOR ITS IMPLEMENTATION

摘要

FIELD: electrical equipment.;SUBSTANCE: use: in the field of electrical engineering and power engineering. Proposed method consists in using reactive power compensators and distortion power installed at the beginning and end of lines equipped with data exchange devices, icing sensors and wire temperature sensors. These compensators, if necessary, are transferred from the compensation mode to the evaporation mode of the formed ice microfilm by increasing losses in the power transmission lines by increasing the value of the effective current in the lines and, if necessary, increasing the frequency. Power line voltage level is maintained within the specified range. Device consists of reactive energy compensators and power distortions installed at the beginning and end of power transmission line, control unit receiving information on icing from wireless current, voltage, temperature and icing sensors. Receiving a signal on the line icing from sensors, reactive energy and distortion power compensators are switched from the compensation mode to the current increasing mode, which allows to increase the conductors temperature of power transmission lines without the consumer disconnection from the mains. If it is necessary to further increase the temperature of the lines, the control unit switches the reactive energy and distortion power compensators to the high-frequency power transmission mode.;EFFECT: technical result is prevention of icing of power transmission lines using reactive power compensators and distortion power without disconnection of electric power consumers.;2 cl, 7 dwg