Search results

In connection with the negative effects caused by the fault of the insulators used in an overhead power transmission line of 6 - 10 kV, it is suggested controlling a condition of a post insulator by the device that responses when breakdown current goes through an insulator. The work of the device for identification of insulators defects is described. Equivalent circuits of an alarm device connection with an insulator in an overhead power transmission line are given. The basic processes, that occur in a system of a supporting insulator of an overhead power transmission line in a serviceable condition and if there is a defect in view of geometric capacitance, absorption current, steady leakage current and surface current of breakdown, are considered.

The problem of emergency outages of power consumers due to the interruption of the wires of power lines due to ice formation remains relevant for today. As a solution to this problem, an electromechanical class device developed by the authors is proposed in the article. The principles of his work, the features of the design and placement on the wires are outlined. The functionality of the device in automatic mode is described. The substantiation of the maximum efficiency of electromechanical methods of struggle against icing is given in comparison with others, including thermal methods. It is necessary to search for optimal pulse parameters and the design of the actuator.