RU2709792C1 - Rod insulator (versions) - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: invention relates to the field of electric power industry, namely to rod insulators for overhead transmission lines, electric substations, contact network of railways, public transport. Insulator consists of rod (1), one or several end terminals (2) fixed on rod (1), and organosilicon shell (3). According to the first independent claim rod (1) is made composite of glass and basalt roving, glued together by means of thermosetting plastic binder. According to the second independent claim rod (1) is made composite from basalt roving, glued together by means of thermosetting plastic binder. Rod insulator is characterized by high mechanical and electrical strength, longevity, corrosion, alkaline – and acidic stabilities, as well as stability of state during prolonged trouble-free operation.

EFFECT: high electrical strength of the insulator.

4 cl, 1 dwg

Description

The invention relates to the field of electric power, in particular to rod insulators for overhead power lines, power substations, a contact network of railways, public transport.

Known rod polymer insulator containing a fiberglass rod with a protective coating, metal ends and screen fittings located at the ends of the rod [1].

This well-known rod-shaped polymer insulator does not differ in high strength, durability, corrosion, alkaline and acid resistance, which is very important when operating insulators in difficult environmental conditions (areas with aggressive environments, sea coasts, fogs, salt effects, etc.).

Also known is an insulator containing a support rod made of a composite material reinforced with glass fibers, characterized in that the matrix of the composite material of the support rod is an inorganic phosphate binder selected from the group: magnesium, aluminum, chromium, zirconium phosphate binders, combined binders based on them and alkaline polyphosphate solutions [2].

The durability, mechanical and electrical strength, as well as the corrosion resistance of this insulator may be insufficient under certain very harsh operating conditions of industrial application, since the supporting rod is made of composite material reinforced only with glass fibers, and the binders are selected from a limited group of some metals, while at the same time, basalt rods glued together by means of thermosetting binders have higher technical characteristics. In addition, the use of basaltorings glued together by means of thermosetting binders, allows to reduce the cost of rod insulators.

The applicant and the authors solved the problem of developing a new rod insulator for overhead power lines, electrical substations, a contact network of railways, public transport characterized by high technical characteristics, namely: high dielectric strength of the insulator, provided by the optimal combination of creepage distance and material properties of which it is made insulator rod, sufficient mechanical strength of the insulator for tensile, compression, bending and torsion, optimal degree of hydrophobic However, especially for the contaminated areas of its industrial use, durability, corrosion, alkali and acid resistance, as well as the stability of the insulator over a long period of operation. The above-mentioned positive technical result was achieved due to a new set of essential features of the rod insulator made according to the present invention, presented in the following claims (options): “rod insulator for overhead power lines, power substations, railway contact network and public transport, consisting of a rod at least one terminal, mounted on the rod, and an organosilicon shell; the rod is made of composite of glass and basaltorings glued together by means of thermosetting binders; a rod insulator for overhead power lines, electrical substations, a contact network of railways and public transport, consisting of a rod, at least one terminal fixed to the rod, and an organosilicon shell; the core is made of composite basalt rods glued together by means of thermosetting binders. ”

The invention is illustrated by drawings, where in FIG. 1 is a perspective view of a core insulator for overhead power lines, power substations, a rail contact network, and public transport in accordance with the present invention.

The inventive rod insulator for overhead power lines, electrical substations, a contact network of railways, public transport for both two options consists of a rod 1, one or more terminal 2 attached to the rod 1, and an organosilicon shell 3.

According to the first independent claim, the rod 1 is made of composite glass and basalt rods glued together by means of thermosetting binders.

According to the second independent claim, the rod 1 is made of composite of basaltorings glued together by means of thermosetting binders.

The strength of the proposed linear rod insulators, the rods of which are made of glass and basalt rods or basalt rods glued together by means of thermosetting binders (thermosets based on phenol-formaldehyde, polyester, epoxy and carbide resins and other binders) is very high and approaches carbon fiber strength, it is approximately 3 times stronger than steel products and at the same time 4 times lighter. In addition, they have very important characteristics, namely durability, corrosion, alkali and acid resistance, as well as stability (without loss of quality) during long-term trouble-free operation (more than 25 years).

Sources of information

[1] Description of the invention to copyright certificate No. 1554034 “Rod polymer insulator”, H01B 17/20, 17/38, claimed 17.1187, published 03.30.90.

[2] Description of the invention to patent No. 2342724 "Insulator with an unlimited composite rod", Н01В 17/00, claimed September 13, 2007, published December 27, 2008.

[3] Description of the invention to patent No. 2386184 "Polymer insulator", НВВ 17/00, claimed March 20, 2008, published April 10, 2010.

[4] Description of the invention to patent No. 2233493 “High-voltage pin linear insulator”, Н01В 17/20, claimed 18.02.2003, published July 27, 2004.

[5] Description of the invention to copyright certificate No. 796918 "Suspended linear insulator", Н01В 17/02, claimed 11.03.79, published 01.15.81.

[6] Description of the utility model for the patent of the Russian Federation “Suspended polymer insulator” No. 80707, class Н01 В 17/02, announced on 01.10.2008, published on 02.20.2009.

[7] US Patent No. 2002104679, "Insulator", class H01B 17/00, published 08.08.2002.

[8] EP 042788 B1 “Supporting Insulator”, H01B 17/14, published 11/21/1984.

[9] Description of the invention to patent No. 2014654 “Pin insulator”, H01B 17/20, claimed 23.12.1991, published 15.06.1994.

[10] US Patent No. 5147984 "High-voltage pendant insulator", H01B 17/02, published 1992.

[11] Description of the invention to patent No. 291506 “Pin insulator”, Н01В 17/20, claimed 10.03.2006, published 10.01.2007.

[12] Description of the invention to patent No. 2392678 "Polymer insulator", H01B 17/00, claimed 10.06.2009, published 20.06.2010.

Claims (4)

1. A rod insulator for overhead power lines, electrical substations, a contact network of railways and public transport, consisting of a rod, at least one terminal attached to the rod, and an organosilicon shell, the rod being composite with glass and basalt rovings, characterized the fact that glass and basalt rovings are glued together by means of thermosetting binders. 2. The insulator according to claim 1, characterized in that the thermosetting binders are made on the basis of phenol-formaldehyde, polyester, epoxy and carbide resins. 3. The core insulator for overhead power lines, electrical substations, the contact network of railways and public transport, consisting of a rod, at least one terminal, mounted on the rod, and an organosilicon shell, the rod is made of composite with basalt rovings, characterized in that basalt rovings are glued together by means of thermosetting binders. 4. The insulator according to claim 3, characterized in that the thermosetting binders are made on the basis of phenol-formaldehyde, polyester, epoxy and carbide resins.

Images