Transmission line lead anti-icing compound coil based on ferrite and preparation method thereof

Abstract

The invention discloses a transmission line lead anti-icing compound coil based on ferrite and a preparation method thereof, and relates to the fields of a magnetic heating material and safe operation of a power grid, in order to solve the problems of low heat productivity, high cost, large load and fixed form of the anti-icing material of a transmission conductor. The product is prepared from ferrite magnetic material powder and polymer base stock. The method comprises the following steps: weighing the ferrite magnetic material powder, the polymer base stock, a plasticizer, a lubricating agent and an antioxidant; and extruding and drying by an extruder after stirring, so as to obtain the compound coil of which the thickness is 2-10mm, wherein the loss at normal temperature is less than 5 W / kg, the saturation flux density when the temperature is lower than 0 DEG C can be up to 0.85T, and the single calorific value at -5 DEG C to 0 DEG C can be up to 32 W / kg under an alternating magnetic field of 50Hz. Thus, the anti-icing compound coil can be applied to the fields of the magnetic heating material and safe operation of the power grid.

Description

technical field

[0001] The invention relates to the fields of magnetic heating materials and safe operation of power grids, in particular to a ferrite-based anti-icing composite coil for transmission line conductors and a preparation method thereof. Background technique

[0002] Due to the hazards of winter ice and snow on power transmission lines, it is easy to cause serious disconnection, tower collapse, large-scale power outages, power cuts and other accidents. It not only poses a serious threat to the safe operation of my country's power system, but also has always been a difficult problem to be solved urgently in the research of power system. At present, dozens of anti-icing and anti-icing methods have been researched and applied at home and abroad. Among them, the anti-icing technology of magnetic materials with low Curie point temperature is used, because it has the characteristics of automatic anti-icing with temperature changes, which has attracted great attention. ...