WO2014169509A1 - New power distribution network overvoltage protector equipped with ring-shaped electrode and distanced grades - Google Patents

Abstract

A power distribution network overvoltage protector equipped with a ring-shaped electrode and distanced grades, comprising: a bracket (1), wherein an insulator (2) and a lightning arrester (3) are respectively arranged on the bracket (1); a ring-shaped electrode (4) is sleeved outside of the insulator (2); and one end of the lightning arrester (3) is movably connected to an arc-shaped electrode (5). In the power distribution network overvoltage protector, the ring-shaped electrode (4) and the arc-shaped electrode (5) are used cooperatively, and distanced grades (51, 52 and 53) are arranged on the arc-shaped electrode (5), thereby significantly improving the lightning-protection performance of the voltage protector.

Description

 Novel distribution network overvoltage protector with ring electrode and distance buckle  Technical field

 The invention relates to an overvoltage protector, in particular to a novel distribution network overvoltage protector with a ring electrode and a distance latch.

 Background technique

With the adoption of overhead distribution lines for urban distribution networks, the problem of lightning strikes has caused widespread concern. The overvoltage protector is an effective lightning protection tool for solving lightning strikes. The electrodes of the existing series gap overvoltage protector gap are generally the horn electrode, and the horn electrode has the advantage of strong arc extinguishing ability. . However, during the installation process, the horn electrode has the following problems: 1) When the two horn electrodes control the gap distance, the radial fixed position is not firm, and it is easy to move and change the gap position; 2) The two horn electrodes must be aligned in a straight line to ensure the gap distance. Since the Z-shaped base under the terminal electrode of the arrester is rotatable, it is easy to cause errors due to the rotation of the base; thus affecting the lightning protection performance of the overvoltage protector.

 Summary of the invention

 In order to solve the above problems, an object of the present invention is to provide a novel distribution network overvoltage protector with a ring electrode and a distance buckle, which adopts The ring electrode is used in combination with the horn electrode, and a distance buckle is arranged on the curved electrode, thereby greatly improving the lightning protection performance of the voltage protector.

 In order to achieve the above object, the present invention adopts the following technical solutions:

 Novel distribution network overvoltage protector with ring electrode and distance buckle The bracket includes an insulator and a lightning arrester respectively, and the insulator sleeve is connected with a ring electrode, and one end of the arrester is movably connected to the arc electrode.

 The ring electrode includes an inner ring and an outer ring, the inner ring is welded and fixed to the outer ring; and the insulator is sheathed with an inner ring.

 Radial of the curved electrode The first buckle, the second buckle and the third buckle are respectively opened, and the curved electrode is connected to the arrester by bolts.

 The first buckle has a diameter of 10 cm, the second buckle has a diameter of 15 cm, and the third buckle has a diameter of 20 cm.

 The insulator is connected to the bracket through the base.

 The invention has the beneficial effects that the present invention provides a novel distribution network overvoltage protector with a ring electrode and a distance buckle , the use of a ring electrode and a curved electrode, And the distance between the arc electrodes is set in the radial direction to ensure that the gap between the arc electrode and the ring electrode remains unchanged during the rotation of the Z-base of the arrester end electrode; the setting of the buckle can ensure the fixed and accurate radial distance of the gap. degree This greatly improves the lightning protection performance of the voltage protector.

 DRAWINGS

 Figure 1 is a schematic view showing the structure of the present invention;

 Figure 2 is a top plan view of the ring electrode of Figure 1;

 Fig. 3 is an enlarged schematic plan view showing the structure of the curved electrode of Fig. 1.

 detailed description

 Example 1

 As shown in FIG. 1 , FIG. 2 and FIG. 3 , the present embodiment provides a novel distribution network overvoltage protector with a ring electrode and a distance buckle. The bracket 1 includes an insulator 2 and a lightning arrester 3 respectively. The insulator 2 is sheathed with a ring electrode 4, and the insulator 2 is connected to the bracket 1 through the base 6. One end of the arrester 3 is movably connected to the curved electrode 5.

The ring electrode 4 includes an inner ring 41 and an outer ring 42. The inner ring 41 is welded and fixed to the outer ring 42. The insulator 2 is sheathed with an inner ring 41. Radial of the curved electrode 5 The first buckle 51, the second buckle 52, and the third buckle 53 are respectively opened, and the curved electrode 5 is movably connected to the arrester 3 through the bolt 54. The distance of the first buckle 51 is 10 cm, the diameter of the second buckle 52 is 15 cm, and the diameter of the third buckle 53 is 20 cm. The gap distance controlled by the three gears can meet the protection requirements. The setting of the gear position ensures that the radial clearance distance is more convenient and more accurate.

 The present embodiment provides a novel distribution network overvoltage protector with a ring electrode and a distance latch, the ring electrode and the arc electrode Used together, And the distance between the arc electrodes is set in the radial direction to ensure that the gap between the arc electrode and the ring electrode remains unchanged during the rotation of the Z-base of the arrester end electrode; the setting of the buckle can ensure the fixed and accurate radial distance of the gap. degree This greatly improves the lightning protection performance of the voltage protector.

Claims (3)

1. A novel distribution network overvoltage protector with a ring electrode and a distance buckle, comprising: a bracket, wherein the bracket is respectively mounted with an insulator and a lightning arrester, wherein the insulator casing is connected with a ring electrode, One end of the arrester is movably connected to the curved electrode. 2. A novel distribution network overvoltage protector with a ring electrode and a distance lock according to claim 1, wherein the ring electrode comprises an inner ring and an outer ring, and the inner ring and the outer ring are welded And the insulator casing is connected with an inner ring. 3. A novel distribution network overvoltage protector with a ring electrode and a distance latch according to claim 1, wherein the arc electrodes are respectively provided with a first buckle and a second buckle in a radial direction. And a third buckle, and the curved electrode is connected to the arrester by bolts.

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