CN210120002U

CN210120002U - Lightning arrester with six-column structure

Info

Publication number: CN210120002U
Application number: CN201921332228.5U
Authority: CN
Inventors: 张致良; 齐东流
Original assignee: Anhui Wohua Electric Equipment Co Ltd
Current assignee: Anhui Wohua Electric Equipment Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-02-28
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a six post structure arresters, including the plastic casing, the plastic casing constitutes for upper casing and lower floor's casing concatenation, the arrester still includes six zinc oxide units, the inside of lower floor's casing is provided with four zinc oxide units, four the zinc oxide unit inserts three circuit alternate AB phase, alternate BC phase, phase ground AD phase and phase ground CD phase respectively, the inside of upper casing is provided with two zinc oxide units, and two zinc oxide units insert three circuit alternate AC phase and phase ground BD phase respectively. This arrester arranges six zinc oxide units in the mode of four lower floors on the upper strata two, guarantees to have sufficient clearance between each zinc oxide unit, effectively avoids the condition of explosion after the inside puncture, and the security is stronger.

Description

Lightning arrester with six-column structure

Technical Field

The utility model belongs to the technical field of the arrester, concretely relates to six post structure arresters.

Background

The lightning arrester is also called as overvoltage protector, and the insulation strength of various high-voltage electrical equipment such as transformer, switch and motor in power system has a certain limit, so that people mostly connect the overvoltage protector in parallel beside the equipment in order to avoid the damage of various overvoltage to the equipment, such as three-phase combined overvoltage protector currently used. The principle of the three-phase combined overvoltage protector mainly adopts the four-star series gap principle, when overvoltage occurs to a system, the ZNO is firstly connected in series with the overvoltage protector and is broken down and conducted in a gap, and then the amplitude of the overvoltage is limited by the ZNO nonlinear resistor, so that the purpose of limiting the overvoltage of the system is achieved. Meanwhile, a four-star gapless structure and a six-column unit structure are partially adopted.

For the lightning arrester with the six-column structure used at present, the problem that six-column units can only be placed in one unit box exists, and due to the structural limitation of a space system in the box, the distance between high-voltage electrodes cannot guarantee the safety distance, so that the interior of the lightning arrester is exploded after breakdown, the safety is insufficient, and the targeted improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a six post structure arresters drop into use to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a six post structure arresters, includes the plastic casing, the plastic casing constitutes for upper casing and lower floor's casing concatenation, the arrester still includes six zinc oxide units, the inside of lower floor's casing is provided with four zinc oxide units, four the zinc oxide unit inserts three alternate AB phase, alternate BC phase, phase ground AD phase and phase ground CD phase of circuit respectively, the inside of upper casing is provided with two zinc oxide units, and two zinc oxide units insert three alternate AC phase and phase ground BD phase of circuit respectively.

Preferably, the zinc oxide unit and the zinc oxide unit are respectively sealed inside the lower shell and the upper shell by epoxy resin pouring.

Preferably, the four zinc oxide units are arranged side by side in pairs, and the two zinc oxide units are arranged side by side.

The utility model discloses a technological effect and advantage: this six post structure arresters, through four zinc oxide units insert three alternate AB phase, alternate BC phase, looks ground AD phase and looks ground CD phase of circuit respectively, insert four zinc oxide units in the casing of lower floor in three circuit respectively, two zinc oxide units insert three alternate AC phase and the phase ground BD phase of circuit respectively, insert two zinc oxide units on upper strata in three circuit, assemble upper casing and lower floor's casing together through the bolt at last, guarantee to have sufficient interval between the zinc oxide unit, avoid the condition of explosion after the inside puncture that arouses because the interval is not enough, and the security is strong.

Drawings

FIG. 1 is a top view of a lower housing;

FIG. 2 is a bottom view of the upper housing;

fig. 3 is a circuit connection diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a six post structure lightning arrester as shown in fig. 1-3, including the plastic casing, the plastic casing is upper casing and lower floor's casing concatenation constitution, the lightning arrester still includes six zinc oxide units, the inside of lower floor's casing is provided with four zinc oxide units, four the zinc oxide unit inserts three circuit alternate AB phase, alternate BC phase, phase ground AD phase and phase ground CD phase respectively, the inside of upper casing is provided with two zinc oxide units, and two zinc oxide units insert three circuit alternate AC phase and phase ground BD phase respectively; four zinc oxide units are arranged side by side two by two, and two zinc oxide units are arranged side by side. A. B, C is three live wires of three-wire circuit, and D is the earth connection, inserts three circuits respectively with four zinc oxide units in the casing of lower floor, inserts three circuits with two zinc oxide units on upper strata again, assembles upper casing and lower floor's casing together through the bolt at last, guarantees to have sufficient interval between the zinc dioxide unit, avoids because the inside circumstances of puncturing the back explosion that the interval is not enough arouses, and the security is strong.

The zinc oxide unit and the zinc oxide unit are respectively sealed in the lower shell and the upper shell through epoxy resin pouring, and the zinc oxide unit are respectively packaged in the lower shell and the upper shell, so that the insulation effect is guaranteed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a six post structure arresters, includes the plastic casing, its characterized in that: the lightning arrester is characterized in that the plastic shell is formed by splicing an upper shell and a lower shell, the lightning arrester further comprises six zinc oxide units, four zinc oxide units are arranged inside the lower shell, the zinc oxide units are respectively connected into an interphase AB phase, an interphase BC phase, an interphase AD phase and an interphase CD phase of three circuits, two zinc oxide units are arranged inside the upper shell, and the two zinc oxide units are respectively connected into an interphase AC phase and an interphase BD phase of three circuits.

2. The lightning arrester as claimed in claim 1, wherein: the zinc oxide unit and the zinc oxide unit are respectively sealed inside the lower shell and the upper shell through epoxy resin pouring.

3. A six-column structure arrester according to claim 2, characterized in that: four zinc oxide units are arranged side by side two by two, and two zinc oxide units are arranged side by side.