CN218214836U - Novel arrester for electric power system - Google Patents

Abstract

The utility model discloses a novel lightning arrester for an electric power system, which comprises a lightning arrester body; the lightning arrester body comprises an insulating cylinder; the top of the outer side of the insulating cylinder is provided with a wiring terminal, and the bottom of the insulating cylinder is provided with a base; grounding terminals are symmetrically arranged on the base and positioned on two sides of the insulating cylinder; the outer side wall of the insulating cylinder is sleeved with a composite protective outer sleeve; a lightning arrester core body is arranged inside the insulating cylinder; the top of the lightning arrester core body is provided with a spring for electrical connection; the bottom of the lightning arrester core body is electrically connected with the grounding terminal. The utility model has the advantages that: (one) excellent protective properties. MOA has good nonlinear characteristics; and (II) large current capacity. The lightning stroke overvoltage and transient overvoltage absorption device has good capability of absorbing lightning stroke overvoltage and transient overvoltage; and (III) high operation reliability. The normal working state is close to the insulation state, the power frequency follow current is only microampere level, the energy release can quickly recover the high resistance state, the operation reliability is high, and the anti-fouling capability is strong.

Description

Novel arrester for electric power system

Technical Field

The utility model relates to a lightning arrester specifically is a novel lightning arrester for electric power system.

Background

An arrester, also known as an overvoltage protector, is an important protection device for protecting the insulation of electrical equipment from overvoltage. The lightning arrester comprises a tubular lightning arrester, a valve type lightning arrester and a metal oxide lightning arrester, and can be divided into a composite outer sleeve lightning arrester and a ceramic outer sleeve lightning arrester according to an outer sleeve.

At present, the composite casing metal oxide lightning arrester becomes an overvoltage protection device with the best performance and the fastest development in an electric power system, and the application range of the composite casing metal oxide lightning arrester is extremely wide.

Therefore, the utility model particularly provides a novel arrester for electric power system that protective properties is excellent, current capacity is big and the operation is reliable.

SUMMERY OF THE UTILITY MODEL

For solving above current problem, the utility model provides a novel arrester for electric power system. The utility model discloses a following technical scheme realizes.

A novel lightning arrester for an electric power system comprises a lightning arrester body;

the lightning arrester body comprises an insulating cylinder; the top of the outer side of the insulating cylinder is provided with a wiring terminal, and the bottom of the insulating cylinder is provided with a base; grounding terminals are symmetrically arranged on the base and positioned on two sides of the insulating cylinder; the outer side wall of the insulating cylinder is sleeved with a composite protective outer sleeve; a lightning arrester core body is arranged inside the insulating cylinder; the top of the lightning arrester core body is provided with a spring for electrical connection; the bottom of the lightning arrester core body is electrically connected with the grounding terminal.

Preferably, the composite protective coat is a silicone rubber umbrella skirt.

Preferably, the lightning arrester core body is a zinc oxide valve plate.

The utility model has the advantages that:

excellent protection performance. MOA has good nonlinear characteristics;

and (II) large current capacity. The lightning stroke overvoltage and transient overvoltage absorption device has good capability of absorbing lightning stroke overvoltage and transient overvoltage;

and (III) high operation reliability. The normal working state is close to the insulation state, the power frequency follow current is only microampere level, the energy release can quickly recover the high resistance state, the operation reliability is high, and the anti-fouling capability is strong.

Drawings

Fig. 1 is the utility model relates to a novel overall structure schematic diagram of arrester for electric power system.

Detailed Description

The technical solution of the present invention will be described in more detail and completely with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In specific embodiment 1, a novel arrester for an electric power system includes an arrester body;

the lightning arrester comprises a lightning arrester body and a lightning arrester body, wherein the lightning arrester body comprises an insulating cylinder 1, the top of the outer side of the insulating cylinder 1 is provided with a wiring terminal 2, the bottom of the insulating cylinder 1 is provided with a base 3, and grounding terminals 4 are symmetrically arranged on the base 3 and positioned on two sides of the insulating cylinder 1;

the outer side wall of the insulating cylinder 1 is sleeved with a composite protective outer sleeve 5, and the composite protective outer sleeve 5 is a silicon rubber umbrella skirt;

the inside of insulating cylinder 1 is equipped with arrester core 6, and arrester core 6 is the zinc oxide valve block, and the top of arrester core 6 is equipped with spring 7 that is used for electric connection, and the bottom and the 4 electric connection of ground terminal of arrester core 6.

The utility model has the advantages that:

excellent protection performance. MOA has good nonlinear characteristics;

and (II) large current capacity. The lightning stroke overvoltage and transient overvoltage absorption device has good capability of absorbing lightning stroke overvoltage and transient overvoltage;

and thirdly, the operation reliability is higher. The normal working state is close to the insulation state, the power frequency follow current is only microampere level, the energy release can quickly recover the high resistance state, the operation reliability is high, and the anti-fouling capability is strong.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (3)

1. The utility model provides a novel arrester for electric power system, includes the arrester body, its characterized in that:

the lightning arrester body comprises an insulating cylinder; the top of the outer side of the insulating cylinder is provided with a wiring terminal, and the bottom of the insulating cylinder is provided with a base; grounding terminals are symmetrically arranged on the base and positioned on two sides of the insulating cylinder; the outer side wall of the insulating cylinder is sleeved with a composite protective outer sleeve; a lightning arrester core body is arranged inside the insulating cylinder; the top of the lightning arrester core body is provided with a spring for electrical connection; the bottom of the lightning arrester core body is electrically connected with the grounding terminal.

2. The novel lightning arrester for power system according to claim 1, characterized in that: the composite protective outer sleeve is a silicon rubber umbrella skirt.

3. The novel lightning arrester for power system according to claim 1, characterized in that: the lightning arrester core body is a zinc oxide valve plate.

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