SU555549A1 - High Frequency Surveyor - Google Patents

Description

(54) HIGH FREQUENCY PLASTER

one

The invention relates to the transmission of information over wires of power lines, for example for dispatching control.

A high-frequency protector is known, which contains a tuning element, a gaiter and a reactor with a power winding in the form of a spiral of an electrically conductive tape, the turns of which are fixed on the reactor with the aid of insulating rails and struts installed radially l.

However, a well-known haullayer is not reliable enough to work and does not provide the necessary dynamic stability, and also has large dimensions, since there are large air gaps between windings.

The purpose of the invention is to increase the dynamic stability of the barrier and reduce its size.

This is achieved by the fact that in a high-frequency barrier, containing a tuning element, a surge generator and a reactor and a power winding in the form of a spiral of electrically conductive data, a tape made of a dielectric material is placed between the turns of the reactor winding.

The drawing shows the proposed layer, a General view with a partial cut.

The high-frequency protector contains a reactor 1 with a power winding and a setting element 2, in the casing of which the discharge element 3 is located. The winding of the reactor 1 consists of a tape 4 made of an electrically conductive material and a tape 5 made of a dielectric material whose mechanical strength greatly exceeds the strength of the electrically conductive material. The winding of the power coil is made spirally, and the turns of the tape 5 are placed between the turns of the tape 4.

Tape 4 may be made of copper, as well as aluminum (which is cheaper than copper, but less durable). Tape 5 can be made, for example, from prestressed fiberglass.

The contact terminals B and 7 of the winding are brought out through the protective coating 8 and are used to connect the power line to the wire, and the terminals 9 and 10 are used to connect the buses 11 and 12 to the setting element 2 with the bit 3 via insulators 13. The setting element 2 is attached to the reactor 1 with the help of rails 14. The outer turn of the winding of the reactor 1 is equipped with fins 15 to improve the cooling conditions. Protector has an earring 16 dl suspension. The setting element 2 is equipped with a screen 17 with a heat-insulating gasket, which in the case of the support installation, the barrier prevents excessive

overheating of the ferromagnetic head of the support structure 18 (coupling capacitor, insulator) and reduces eddy current losses.

The barrier works as follows. When the barrier is connected in series by terminals 6 and 7, an electric line passes through the reactor winding 1 and the tape 4 of electrically conductive material acts as a conductor with an electric current in the electromagnetic field of the winding, which can be significant, for example when short circuits are on the line. The largest component of these efforts is directed radially (from the center of the reactor to the periphery it tends to break the winding coil. But since each turn of the winding is formed of two tapes, one of which has considerable strength, the winding of the reactor 1 withstands the efforts

/ N

/

times more effort sustained by famous barriers.

The proposed barrier construction is very compact, since the thickness of the winding tapes is small and wound without gaps.

The mechanical strength of the proposed barrier is achieved, not by increasing the cross section of an electrically conductive tape, but by using a dielectric tape with

In the proposed barrier, an optimal ratio has been reached between the value of the inductance of the barrier and the consumption of electrical conductive material.

Claims (1)

1. US patent No. 3603901, cl. 233376, published 09/07/71 (prototype). high mechanical strength.