RU157776U1 - TRANSFORMER FOR THE SYSTEM OF LIGHTING ANTENNA MASTES OF PULSE-PHASE RADIO NAVIGATION SYSTEMS - Google Patents

Abstract

A transformer consisting of two windings, a primary and a secondary, and a toroidal core with low loss of dispersion, characterized in that the primary winding is evenly distributed over the toroidal core, and the secondary winding is placed on a toroidal dielectric frame, the diameter of which is equal to the diameter of the toroidal core, the plane of the toroidal dielectric the frame is perpendicular to the plane of the toroidal core, and the toroidal core and the toroidal dielectric frame intersect each other ha planes centers, they formed.

Description

The utility model is intended for supplying a supply voltage of 220 V 50 Hz to the obstruction lights of the antenna masts of radio navigation systems. As light sources, incandescent lamps or LED lighting lamps can be used.

There are a lot of isolation high-voltage transformers that provide good high-voltage isolation of input and output electrical circuits at an industrial network frequency of 50 Hz and are quite suitable for supplying power to obstruction lights of ordinary masts of any height (EA8971 B1, 10.26.2007, RU 36564 U1 10.032004, RU 2157015 C2, 09/27/2000). The closest in technical essence is the transformer RU 118469 U1, 07/20/2012, consisting of two windings, primary and secondary, and a toroidal core made of a material with low dispersion losses. However, such transformers cannot be used to supply power to the obstruction lights of the mast, which is an active transmitting antenna. The known transformer has a large capacitance between the primary and secondary windings, which leads to a significant decrease in the efficiency of high-frequency radiation of such an antenna and the penetration of high-frequency voltage into the electrical network, which, in turn, leads to disruption of other consumers of the electrical network.

The objective of the utility model is to eliminate this drawback. The technical result is the reduction of interference induced in the primary winding of a transformer by high-frequency electromagnetic radiation.

To achieve a technical result, a transformer is proposed, consisting of two windings, a primary and a secondary, and a toroidal core with low dispersion losses, the primary winding being uniformly distributed over the toroidal core, and the secondary winding placed on a toroidal dielectric frame, the diameter of which is equal to the diameter of the toroidal core, plane the toroidal dielectric frame is perpendicular to the plane of the toroidal core, with the toroidal core and the toroidal die ektrichesky frame intersect each other at the centers of planes formed by them.

In FIG. 1 shows the design of the transformer,

in FIG. 2 is a diagram of using a transformer for a barrage lighting system of a radio transmitting mast.

To reduce the capacitance between the windings, a transformer design is proposed, the windings of which are maximally spaced from each other, while high-voltage isolation of the input and output circuits due to the air gap is also provided. In order to maintain a high transformer efficiency, a toroidal core is used, which has low scattering losses. The transformer contains a primary winding evenly distributed over the toroidal core 1, a secondary winding, placed on a toroidal dielectric frame 2, the diameter of which is equal to the diameter of the toroidal core.

In FIG. 2 shows a diagram of the use of a transformer for a barrage lighting system of a radio transmitting mast. Obstruction lights 3 and electrical wiring 4 are located on the mast 5 with a height of several tens to several hundred meters high. The mast is an active radiating antenna mounted on a ceramic insulator 6. A high-frequency oscillation with a power from several hundred kilowatts to units of megawatts is brought to the lower end of the mast. In this case, the metal elements of the mast 5 and the wiring 4 of the obstruction lights 3 are under high high-frequency voltage, reaching several hundred kilovolts. A voltage is supplied from the network to the transformer 7 to power the barrage lights 3. High-frequency voltage is induced on the wiring, which does not enter the network due to the proposed transformer design.

A decrease in the capacitance between the windings reduces the shunting of the antenna by this capacitance to the ground, respectively, significantly reduces the power loss of the transmitter and ensures the effective radiation of the electromagnetic field by such an antenna, respectively, the penetration of high-frequency voltage into the electric network occurs to a much lesser extent.

Claims (1)

A transformer consisting of two windings, a primary and a secondary, and a toroidal core with low loss of dispersion, characterized in that the primary winding is evenly distributed over the toroidal core, and the secondary winding is placed on a toroidal dielectric frame, the diameter of which is equal to the diameter of the toroidal core, the plane of the toroidal dielectric the frame is perpendicular to the plane of the toroidal core, and the toroidal core and the toroidal dielectric frame intersect each other ha planes centers, they formed.

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