CN113299445A

CN113299445A - High-voltage composite post insulator

Info

Publication number: CN113299445A
Application number: CN202110594102.0A
Authority: CN
Inventors: 鲍雄飞; 何冬平; 皮华威
Original assignee: Gulifa Electric Co ltd; Gulifa Group Co Ltd
Current assignee: Gulifa Electric Co ltd; Gulifa Group Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-08-24

Abstract

The invention relates to the technical field of insulators and discloses a high-voltage composite post insulator which comprises an end cover, a gasket, a piezoresistor, a glass fiber tape, an insulating sheath and a connecting piece, wherein the end cover is provided with a first end and a second end; a groove is formed in one side of the end cover, and the gasket is arranged in the groove; a plurality of piezoresistors are arranged between the two end covers, and the outer sides of the piezoresistors are connected with the two end covers through a plurality of glass fiber belts; the insulation protective sleeve is arranged between the two end covers and covers the piezoresistor and the glass fiber tape. The high-voltage composite post insulator has good insulating property and simple structure, is formed by splicing parts, thereby reducing the processing difficulty, and has simple assembling process and quick production.

Description

High-voltage composite post insulator

Technical Field

The invention relates to the technical field of insulators, in particular to a high-voltage composite post insulator.

Background

The post insulator is a special insulating control and can play an important role in an overhead transmission line. The early-year post insulator is mostly used for telegraph poles, and one end of a high-voltage wire connecting tower which is gradually developed is hung with a plurality of suspended insulators, so that the insulator is used for increasing creepage distance and is usually made of silica gel or ceramics, namely the insulator. The insulator plays two basic roles in an overhead transmission line, namely supporting a wire and preventing current from flowing back to the ground, and the two roles must be ensured, the insulator cannot generate flashover breakdown caused by change of environmental and electrical load conditions to fail, otherwise, the insulator can lose the function and the service life of the whole line can be damaged.

The porcelain post insulator is difficult to manufacture due to the limitations of complex process, equipment conditions, raw material quality problems and the like, and therefore a high-voltage composite post insulator is provided.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a high-voltage composite post insulator.

The invention provides the following technical scheme: a high-voltage composite post insulator comprises an end cover, a gasket, a piezoresistor, a glass fiber tape, an insulating sheath and a connecting piece;

a groove is formed in one side of the end cover, and the gasket is arranged in the groove;

a plurality of piezoresistors are arranged between the two end covers, and the outer sides of the piezoresistors are connected with the two end covers through a plurality of glass fiber belts;

the insulation protective sleeve is arranged between the two end covers and wraps the piezoresistor and the glass fiber tape;

the connecting piece is installed on the end cover through a bolt.

Preferably, the side surfaces of the end covers are provided with clamping grooves, and two ends of the glass fiber belt are respectively embedded into the clamping grooves on the two end covers.

Preferably, the end cover fastens the glass fiber tape embedded in the clamping groove through an insulating tape.

Preferably, a plurality of the glass fiber tapes are wound by an insulating tape and coated with a rubber resin layer.

Preferably, the insulating sheath is made of silicon rubber.

Preferably, the piezoresistors are sequentially arranged between the two end covers and are connected with the two end covers through a plurality of glass fiber belts.

Compared with the prior art, the invention has the following beneficial effects:

the high-voltage composite post insulator has good insulating property and simple structure, is formed by splicing parts, thereby reducing the processing difficulty, and has simple assembling process and quick production.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the split structure of FIG. 1 according to the present invention.

In the figure: 1. an end cap; 2. a gasket; 3. a voltage dependent resistor; 4. a glass fiber tape; 5. an insulating sheath; 6. a connecting member.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure, and in order to keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known parts of the disclosure are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

Referring to fig. 1-2, a high-voltage composite post insulator includes an end cap 1, a gasket 2, a varistor 3, a glass fiber tape 4, an insulating sheath 5 and a connecting member 6;

one side of end cover 1 is equipped with the recess, and gasket 2 sets up in the recess, two be equipped with a plurality of piezo-resistor 3 between the end cover 1, piezo-resistor 3's the outside is connected with two end covers 1 through many glass fiber bands 4, and insulating sheath 5 sets up between two end covers 1 and cladding piezo-resistor 3 and glass fiber band 4, and piezo-resistor 3 is a resistance device who has nonlinear volt-ampere characteristic, mainly is used for when the circuit bears the excessive pressure to carry out voltage clamp, absorbs unnecessary electric current in order to protect sensitive device, consequently connecting piece 6 passes through the bolt and installs on end cover 1, is convenient for the insulator installation through connecting piece 6.

The side of end cover 1 is equipped with the draw-in groove, the both ends of glass fiber tape 4 are embedded in the draw-in groove on two end covers 1 respectively, end cover 1 fastens the glass fiber tape 4 who imbeds in the draw-in groove through the insulating tape, so utilizes glass fiber tape 4 to connect two end covers 1 to the position of locking piezo-resistor 3, in order to make things convenient for the equipment.

A plurality of the glass fiber tapes 4 are wound by an insulating tape and coated with a layer of rubber resin having insulating properties.

The insulating sheath 5 is made of silicon rubber, and the silicon rubber has good insulating property and can prevent the creepage phenomenon.

The piezoresistors 3 are sequentially arranged between the two end covers 1 and connected with the two end covers 1 through a plurality of glass fiber belts 4.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a high-pressure composite post insulator which characterized in that: the device comprises an end cover (1), a gasket (2), a piezoresistor (3), a glass fiber tape (4), an insulating sheath (5) and a connecting piece (6);

a groove is formed in one side of the end cover (1), and the gasket (2) is arranged in the groove;

a plurality of piezoresistors (3) are arranged between the two end covers (1), and the outer sides of the piezoresistors (3) are connected with the two end covers (1) through a plurality of glass fiber belts (4);

the insulation sheath (5) is arranged between the two end covers (1) and covers the piezoresistor (3) and the glass fiber tape (4);

the connecting piece (6) is installed on the end cover (1) through a bolt.

2. The high-voltage composite post insulator according to claim 1, wherein: the side of the end covers (1) is provided with clamping grooves, and two ends of the glass fiber belts (4) are respectively embedded into the clamping grooves on the two end covers (1).

3. The high-voltage composite post insulator according to claim 2, wherein: the end cover (1) fastens the glass fiber belt (4) embedded in the clamping groove through the insulating belt.

4. The high-voltage composite post insulator according to claim 1, wherein: a plurality of the glass fiber tapes (4) are wound by an insulating tie and coated with a layer of rubber resin.

5. The high-voltage composite post insulator according to claim 1, wherein: the insulating sheath (5) is made of silicon rubber.

6. The high-voltage composite post insulator according to claim 1, wherein: the piezoresistors (3) are sequentially arranged between the two end covers (1) and are connected with the two end covers (1) through a plurality of glass fiber belts (4).