CN217607330U - Main module for solid ring main unit - Google Patents

Abstract

The embodiment of the utility model provides a main module for solid looped netowrk cabinet, including insulating housing, insulating housing is inside to have the cavity, be provided with in the cavity and keep apart the sword, be connected with a conductive piece on the insulating housing, a conductive piece runs through the insulating housing wallboard and extends to in the cavity, and a conductive piece swing joint keeps apart the one end of sword, still be fixed with combined floodgate terminal and ground terminal in the cavity, combined floodgate terminal and ground terminal are located the one side of keeping apart the sword respectively, the free end of keeping apart the sword is portable and contact combined floodgate terminal and ground terminal. The technical scheme adopts an insulation structure formed by completely coating and fixedly sealing the high-voltage components of the main circuit of the switch equipment by using a solid medium. A surface grounding layer is arranged on the outer surface of the insulating shell; the switchgear and control equipment enclosed in the grounded metal enclosure after complete assembly, with their insulated outer surfaces also grounded through the enclosure.

Description

Main module for solid ring main unit

Technical Field

The utility model belongs to the technical field of power equipment, especially, relate to a solid is primary module for looped netowrk cabinet.

Background

In an electric power distribution system, a ring main unit is a very important component in the power distribution system. Solid ring main units are the trend in the future. The performance of the main module directly influences the safety and reliability of the operation of the ring main unit.

The development trend of the existing ring main unit is miniaturization and intellectualization. The arc extinguish chamber is a part for connecting each element in the ring main unit. With the development of electrical modernization, the ring main unit increasingly becomes a power supply unit and a terminal device of a ring network in departments such as urban industrial parks, residential districts, business centers, industrial and mining enterprises and the like, and is the best device for electric energy distribution, control and electrical protection. In order to meet the development requirements of modern parks, a main module matched with a 12kV solid cabinet is particularly required to be designed and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, an object of the embodiments of the present invention is to provide a main module for a solid ring main unit.

The embodiment of the utility model provides a technical scheme who adopts is, a main module for solid looped netowrk cabinet, including insulating housing, the inside cavity that has of insulating housing, be provided with in the cavity and keep apart the sword, be connected with once conductive piece on the insulating housing, once conductive piece runs through the insulating housing wallboard and extends to in the cavity, and once conductive piece swing joint keeps apart the one end of sword, still be fixed with combined floodgate terminal and ground terminal in the cavity, combined floodgate terminal and ground terminal are located the one side of keeping apart the sword respectively, the free end of keeping apart the sword is portable and contact combined floodgate terminal and ground terminal.

Further, still be provided with the explosion chamber in the cavity, the explosion chamber is connected to once electrically conductive piece on, once electrically conductive piece is through the one end of explosion chamber swing joint isolation sword.

Furthermore, the insulation shell is fixedly connected with a first insulation pipeline, the first insulation pipeline is communicated to the cavity, and the primary conductive piece enters the cavity through the first insulation pipeline and is connected with the arc extinguish chamber.

Furthermore, a second insulating pipeline is fixedly connected to the insulating shell and communicated with the cavity, a conductive piece is arranged in the second insulating pipeline, and one end of the conductive piece extends into the cavity to form a closing terminal.

Further, the outer surface of the insulating shell is provided with a surface grounding layer, and the surface grounding layer is electrically connected to the ground.

Furthermore, the surface grounding layer is a covered conductive material layer structure.

Further, the ground terminal is electrically connected to ground.

Compared with the prior art, the main module for the solid ring main unit adopts the insulating structure formed by completely coating and fixedly sealing the high-voltage components of the main loop of the switchgear by the solid medium. A surface grounding layer is arranged on the outer surface of the insulating shell; the switchgear and control equipment enclosed in the earthed metal casing after the complete assembly, the insulated outer surfaces of which are also earthed via the box.

And a vacuum arc extinguish chamber is adopted for switching on and off. No ionizable substances are present in the arc chute. In any case, when the isolating blade is separated, the arc channel between the isolating blade and the closing terminal consists only of the metal of the isolating blade material.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar parts throughout the different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, the accompanying drawings of the embodiment of the present invention are combined below to clearly and completely describe the technical scheme of the embodiment of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Referring to fig. 1, the embodiment of the utility model provides a main module for solid ring main unit, including insulating housing 1, insulating housing 1 is inside to have cavity 2, be provided with in the cavity 2 and keep apart sword 3, insulating housing 1 is last to be connected with a conductive piece 4, a conductive piece 4 runs through insulating housing 1 wallboard and extends to in the cavity 2, and 4 swing joint of a conductive piece keeps apart the one end of sword 3, still be fixed with combined floodgate terminal 5 and ground terminal 6 in the cavity 2, combined floodgate terminal 5 and ground terminal 6 are located the one side of keeping apart sword 3 respectively, the free end of keeping apart sword 3 is portable and contact combined floodgate terminal 5 and ground terminal 6. The insulating structure is formed by completely coating and fixedly sealing the isolation knife 3, the closing terminal 5 and the grounding terminal 6 of the high-voltage component of the main circuit of the switch equipment by adopting a solid medium.

Still be provided with explosion chamber 7 in the cavity 2, explosion chamber 7 is connected to on the primary conductive piece 4, one end of isolation sword 3 is kept apart through explosion chamber 7 swing joint to primary conductive piece 4. And a vacuum arc extinguish chamber 7 is adopted for breaking. No ionizable substances are present in the arc chute 7. In any case, when the isolating blade 3 is separated, the arc channel between the isolating blade 3 and the closing terminal 5 consists only of the metal of the material of the isolating blade 3.

The insulation shell 1 is fixedly connected with a first insulation pipeline 8, the first insulation pipeline 8 is communicated to the cavity 2, and the primary conductive piece 4 enters the cavity 2 through the first insulation pipeline 8 and is connected with an arc extinguish chamber 7.

A second insulating pipeline 9 is further fixedly connected to the insulating housing 1, the second insulating pipeline 9 is communicated to the cavity 2, a conductive piece 10 is arranged in the second insulating pipeline 9, and one end of the conductive piece 10 extends into the cavity 2 to form a closing terminal 5.

The external surface of the insulating housing 1 is provided with a surface ground layer 11, and the surface ground layer 11 is electrically connected to the ground. The surface ground layer 11 is an overlying conductive material layer structure. The outer surface of the insulating shell 1 is provided with a surface grounding layer 11; the switching and control devices, which are enclosed in a grounded metal enclosure after all assembly, said ground terminal 6 is electrically connected to ground.

The product is particularly suitable for metal armor design, and can be provided for customers with high reliability, good economy, friendly user operation interface and high safety. The method is suitable for 6-12 kV three-phase alternating current 50Hz power systems, such as: the power distribution system comprises ring network power supply, a small-capacity power distribution room, double radiation power supply and primary power distribution of a cable feed network. Compared with the traditional SF6 ring main unit, the novel generation ring main unit has the advantages of more reliable use, more environmental protection and wider application range. The automatic intelligent terminal equipment of the solid insulation looped network switch equipment can remotely monitor and control the equipment condition in real time, and realize the intellectualization, reliability, stability and flexibility of a power distribution network.

According to the technical scheme, three stations of closing, isolating and grounding of the product can be realized. Under the normal operation of the power equipment, the main module of the solid cabinet is in a switching-on position (the isolation knife 3 is in contact with the switching-on terminal 5); when a fault occurs, the main module of the solid cabinet is in an isolation position (the isolation knife 3 is positioned between the closing terminal 5 and the grounding terminal 6); during maintenance, the main solid cabinet module is in a grounding state (the isolation knife 3 is in contact with the grounding terminal 6).

The above description is intended to be illustrative, and not restrictive, and variations, modifications, substitutions, and alterations may be made to the above-described embodiments by those of ordinary skill in the art within the scope of the present disclosure. Also, the above-described examples (or one or more versions thereof) may be used in combination with each other, and it is contemplated that the embodiments may be combined with each other in various combinations or permutations.

Claims (7)

1. The utility model provides a main module for solid looped netowrk cabinet, includes insulating housing (1), insulating housing (1) inside has cavity (2), its characterized in that, be provided with in cavity (2) and keep apart sword (3), be connected with once conductive piece (4) on insulating housing (1), once conductive piece (4) run through insulating housing (1) wallboard and extend to cavity (2) in, and once conductive piece (4) swing joint keeps apart the one end of sword (3), still be fixed with combined floodgate terminal (5) and ground terminal (6) in cavity (2), combined floodgate terminal (5) and ground terminal (6) are located the one side of keeping apart sword (3) respectively, the free end of keeping apart sword (3) is portable and contacts combined floodgate terminal (5) and ground terminal (6).

2. The main module for the solid ring main unit as claimed in claim 1, wherein an arc extinguish chamber (7) is further disposed in the cavity (2), the arc extinguish chamber (7) is connected to the primary conductive member (4), and the primary conductive member (4) is movably connected to one end of the isolation knife (3) through the arc extinguish chamber (7).

3. The main module for solid ring main unit as claimed in claim 2, wherein a first insulating pipe (8) is fixedly connected to the insulating housing (1), the first insulating pipe (8) is connected to the cavity (2), and the primary conductive member (4) enters the cavity (2) through the first insulating pipe (8) and is connected to the arc extinguish chamber (7).

4. The main module for the solid ring main unit according to claim 1, wherein a second insulating pipe (9) is further fixedly connected to the insulating housing (1), the second insulating pipe (9) is communicated to the cavity (2), a conductive member (10) is disposed in the second insulating pipe (9), and one end of the conductive member (10) extends into the cavity (2) to form a closing terminal (5).

5. The main module for the solid ring main unit as claimed in claim 1, wherein the external surface of the insulating housing (1) is provided with a surface grounding layer (11), and the surface grounding layer (11) is electrically connected to the ground.

6. The main module for solid ring main unit as claimed in claim 5, wherein the surface grounding layer (11) is an overlying conductive material layer structure.

7. The main module for solid ring main unit as claimed in claim 1, wherein the grounding terminal (6) is electrically connected to ground.

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