CN215417986U

CN215417986U - Prepayment protection device of vacuum circuit breaker on column

Info

Publication number: CN215417986U
Application number: CN202121094262.0U
Authority: CN
Inventors: 胡攀
Original assignee: Jiangxi Changtai Electric Co Ltd
Current assignee: Jiangxi Changtai Electric Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-01-04
Anticipated expiration: 2031-05-21

Abstract

The utility model relates to a prepayment protection device of a vacuum circuit breaker on a column, which relates to the technical field of prepayment circuit breakers and comprises a base, a circuit breaker main body and a metering mutual inductor, wherein the circuit breaker main body and the metering mutual inductor are arranged on the base; the gas insulation assembly comprises an insulation gas tank communicated with the top of the metering mutual inductor, a circulation pipeline is arranged outside the metering mutual inductor, a branch pipeline is arranged outside the circulation pipeline, and the branch pipeline is connected with the outside of the breaker main body. According to the utility model, the breaker main body and the metering transformer are independently arranged on the base, so that the breaker main body and the metering transformer can be conveniently and respectively subjected to daily maintenance and management, the insulation reliability of the device is effectively improved through the arrangement of the gas insulation assembly, the electrical parameters of the product are stable, and the device is suitable for environments with severe operating conditions.

Description

Prepayment protection device of vacuum circuit breaker on column

Technical Field

The utility model belongs to the technical field of prepayment circuit breakers, and particularly relates to a prepayment protection device of a vacuum circuit breaker on a column.

Background

The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum, has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is more popular in power distribution networks;

current prepayment circuit breaker insulation measure reliability is not high, influences the normal use of circuit breaker easily, and the most forms of prepayment circuit breaker structure are the inside of integrating the measurement mutual-inductor at the mutual-inductor, and overall structure need be torn open in later maintenance overhaul dismantlement, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a prepayment protection device of a vacuum circuit breaker on a column, which has a simple structure and reasonable design.

The utility model realizes the purpose through the following technical scheme:

a prepayment protection device of a vacuum circuit breaker on a column comprises a base, a circuit breaker main body and a metering mutual inductor, wherein the circuit breaker main body and the metering mutual inductor are arranged on the base, the outer parts of the circuit breaker main body and the metering mutual inductor are respectively provided with a fixed sealing shell, dust on the surfaces of components can be prevented from being accumulated, the safety and the insulating property of the circuit breaker main body and the metering mutual inductor are improved, and a gas insulating assembly is arranged at the top of the metering mutual inductor;

the gas insulation assembly comprises an insulation gas tank communicated with the top of the metering mutual inductor, a circulation pipeline is arranged outside the metering mutual inductor, a branch pipeline is arranged outside the circulation pipeline, and the branch pipeline is connected with the outside of the breaker main body.

As a further optimized scheme of the utility model, the circuit breaker further comprises a disconnecting switch arranged on the circuit breaker main body and a switching-on and switching-off operating handle for controlling the disconnecting switch to be switched on and switched off.

As a further optimization scheme of the utility model, a top protection plate is arranged at the top of the metering transformer, so that a protection effect is generated on the upper ends of the metering transformer and the breaker main body, and the insulating gas tank is fixedly arranged on the top protection plate, and the structural damage of external factors to the metering transformer and the breaker main body is avoided.

As a further optimization scheme of the utility model, a pressure gauge is arranged outside the circulating pipeline and used for detecting the gas pressure of the circulating pipeline.

As a further optimization scheme of the utility model, an external protection box with an access door is arranged outside the metering mutual inductor, so that the external protection capability of the whole structure is improved, and the metering mutual inductor is provided with the access door, so that the daily maintenance is facilitated.

As a further optimization scheme of the utility model, a wiring frame positioned between the breaker main body and the metering transformer is inserted outside the top protection plate and is used for wiring cables between the breaker main body and the metering transformer, so that the cables are prevented from being wound, and different cables are difficult to distinguish in later-stage maintenance.

As a further optimization scheme of the utility model, the outer side of the wiring rack is provided with a wiring groove, and the outer part of the wiring groove is in sliding fit with a plurality of spring clamps for clamping the cable.

As a further optimization scheme of the utility model, the base comprises a bottom plate, reinforcing ribs are uniformly distributed on the periphery of the bottom plate to enhance the structural strength of the bottom plate, mounting plates are arranged at four corners of the bottom plate, extension springs are connected between the mounting plates and the bottom plate, and the four corners of the bottom plate are fixed by the mounting plates in an extending manner, so that the structural stability of the bottom plate is ensured.

The utility model has the beneficial effects that:

according to the utility model, the breaker main body and the metering mutual inductor are independently arranged on the base, so that the breaker main body and the metering mutual inductor can be conveniently and respectively maintained and managed in daily life, the outer parts of the breaker main body and the metering mutual inductor are respectively provided with the sealing shell, dust on the surfaces of components can be prevented from being accumulated, the safety and the insulating property of the breaker main body and the metering mutual inductor are improved, the gas insulating assembly fills insulating gas in the breaker main body and the metering mutual inductor, the insulating gas has better arc extinguishing capability compared with air generally, and the reliability of the device can be effectively improved when the device is applied to the breaker main body and the metering mutual inductor, so that the device is stable in electrical parameters and suitable for environments with severe operating conditions.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a top view provided by the present invention;

FIG. 3 is a schematic diagram of the internal structure provided by the present invention;

FIG. 4 is a perspective view of a side dam provided by the present invention;

in the figure: 1. a base; 101. a base plate; 102. reinforcing ribs; 103. an extension spring; 104. mounting a plate; 2. a circuit breaker main body; 3. an isolating switch; 4. a metering transformer; 5. an insulating gas tank; 6. a circulation line; 7. a branch pipeline; 8. a switching-on/off operation handle; 9. a pressure gauge; 10. a wiring rack; 11. wiring grooves; 12. a spring clip; 13. a top guard plate; 14. and (4) an outer protection box.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.

Referring to the attached drawings 1-4 of the specification, the prepayment protection device of the vacuum circuit breaker on the column comprises a base 1, a circuit breaker main body 2 and a metering mutual inductor 4 which are arranged on the base 1, and further comprises an isolating switch 3 and a switching-off and switching-on operating handle 8, wherein the isolating switch 3 is arranged on the circuit breaker main body 2, the switching-off and switching-on operating handle 8 is used for controlling the isolating switch 3 to be switched on and switched off, a gas insulation assembly is arranged at the top of the metering mutual inductor 4 and comprises an insulating gas tank 5 communicated with the top of the metering mutual inductor 4, a circulating pipeline 6 is arranged outside the metering mutual inductor 4, a branch pipeline 7 is arranged outside the circulating pipeline 6, and the branch pipeline 7 is connected with the outside of the circuit breaker main body 2.

The breaker main body 2 and the metering mutual inductor 4 are independently arranged on the base 1, so that daily maintenance and management can be conveniently and respectively carried out on the breaker main body 2 and the metering mutual inductor 4, and the outer parts of the breaker main body and the metering mutual inductor are both provided with the fixed sealing shells, so that dust on the surfaces of parts can be prevented from being accumulated, and the safety and the insulating property of the breaker main body 2 and the metering mutual inductor 4 are improved;

simultaneously, 5 insulating gas tanks that are linked together with 4 outside solid sealed shells tops of measurement mutual-inductor are with insulating gas, if SF6 gas insulation medium lets in the inside of measurement mutual-inductor 4, and realize dynamic circulation through circulating line 6, subsequently, insulating gas gets into the inside of circuit breaker main part 2 from the outside solid sealed shell of circuit breaker main part 2 through branch pipeline 7, make insulating gas be full of in the inside of circuit breaker main part 2 and measurement mutual-inductor 4, insulating gas usually the air of comparing has better arc extinguishing ability, use the reliability that circuit breaker main part 2 and measurement mutual-inductor 4 department can effectively improve the device, make the electrical parameter of product stable, be applicable to the environment that operating conditions is abominable.

The top at the top of the metering mutual inductor 4 is provided with a top protection plate 13, so that a protection effect is generated on the upper ends of the metering mutual inductor 4 and the breaker main body 2, the external factors are prevented from generating structural damage on the metering mutual inductor, and the insulating gas tank 5 is fixedly installed on the top protection plate 13.

And a pressure gauge 9 is arranged outside the circulating pipeline 6 and used for detecting the gas pressure of the circulating pipeline 6.

The external protection box 14 with the access door is arranged outside the metering mutual inductor 4, so that the external protection capability of the integral structure is improved, and the routine maintenance is facilitated due to the access door.

The outside of top backplate 13 is pegged graft and is had the wiring frame 10 that is located between circuit breaker main part 2 and the metering mutual-inductor 4 for the wiring of cable between circuit breaker main part 2 and the metering mutual-inductor 4 prevents to produce the winding between the cable, and later stage overhauls difficult different cables of distinguishing.

Wiring groove 11 has been seted up in the outside of wiring frame 10, and the outside sliding fit of wiring groove 11 has a plurality of spring clamps 12 for the centre gripping cable.

Base 1 includes bottom plate 101, the periphery equipartition of bottom plate 101 has strengthening rib 102, strengthens bottom plate 101's structural strength, the four corners of bottom plate 101 is equipped with mounting panel 104, be connected with extension spring 103 between mounting panel 104 and the bottom plate 101, make its fixed mounting at appointed locus through extension spring 103 extension mounting panel 104, the four corners of bottom plate 101 is passed through mounting panel 104 and is stretched fixedly, guarantees the stability of its structure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The prepayment protection device of the vacuum circuit breaker on the column is characterized by comprising a base (1), a circuit breaker main body (2) and a metering mutual inductor (4), wherein the circuit breaker main body and the metering mutual inductor (4) are arranged on the base (1), and a gas insulation assembly is arranged at the top of the metering mutual inductor (4);

the gas insulation assembly comprises an insulation gas tank (5) communicated with the top of the metering transformer (4), a circulating pipeline (6) is arranged outside the metering transformer (4), a branch pipeline (7) is arranged outside the circulating pipeline (6), and the branch pipeline (7) is connected with the outside of the breaker main body (2).

2. A prepaid protection device for vacuum circuit breakers on columns, as claimed in claim 1, characterized in that: the circuit breaker is characterized by further comprising a disconnecting switch (3) arranged on the circuit breaker main body (2) and a switching-on and switching-off operating handle (8) for controlling the disconnecting switch (3) to be switched on and switched off.

3. A prepaid protection device for vacuum circuit breakers on columns, as claimed in claim 1, characterized in that: the top of the metering transformer (4) is provided with a top guard plate (13), and the insulating gas tank (5) is fixedly mounted on the top guard plate (13).

4. A prepaid protection device for vacuum circuit breakers on columns, as claimed in claim 1, characterized in that: and a pressure gauge (9) is arranged outside the circulating pipeline (6).

5. A prepaid protection device for vacuum circuit breakers on columns, as claimed in claim 1, characterized in that: an outer security box (14) with an access door is arranged outside the metering transformer (4).

6. A prepaid protection device for vacuum circuit breakers on columns, as claimed in claim 3, characterized in that: and a wiring rack (10) positioned between the breaker main body (2) and the metering transformer (4) is inserted outside the top protection plate (13).

7. The prepaid protection device for vacuum circuit breakers on poles as claimed in claim 6, characterized in that: wiring groove (11) have been seted up in the outside of wiring frame (10), and the outside sliding fit of wiring groove (11) has a plurality of spring clamps (12).

8. A prepaid protection device for vacuum circuit breakers on columns, as claimed in claim 1, characterized in that: the base (1) comprises a bottom plate (101), reinforcing ribs (102) are evenly distributed on the periphery of the bottom plate (101), mounting plates (104) are arranged at four corners of the bottom plate (101), and extension springs (103) are connected between the mounting plates (104) and the bottom plate (101).