CN110600247B

CN110600247B - Multipurpose combined protection transformer

Info

Publication number: CN110600247B
Application number: CN201910721049.9A
Authority: CN
Inventors: 李新国
Original assignee: Hunan Guofeng Power Equipment Co ltd
Current assignee: Hunan Guofeng Power Equipment Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2023-05-05
Anticipated expiration: 2039-08-06
Also published as: CN110600247A

Abstract

The invention provides a multipurpose combined protection transformer, which relates to the technical field of transformers and comprises a transformer body, wherein the transformer body comprises a fixed base, four edge positions at the upper end of the fixed base are vertically provided with protection side plates, the upper ends of the protection side plates are horizontally provided with top plates, high-voltage bushings and low-voltage bushings are arranged above the top plates, one side of each high-voltage bushing is provided with a lightning arrester, a fuse is arranged between each lightning arrester and each high-voltage bushing, and two mounting frames are arranged at the lower end of the fixed base in parallel. According to the invention, the lightning arrester is arranged in front of the high-voltage sleeve, so that the damage caused by lightning can be effectively reduced, and the safe operation of the transformer is maintained; the fuse is arranged between the lightning arrester and the high-voltage sleeve, the fuse protects the transformer from damage caused by overcurrent, the safety of the transformer is protected, the whole device is stable in performance, safe and reliable in action, no misoperation is generated, and the whole device is convenient to install and detach and convenient to maintain the transformer.

Description

Multipurpose combined protection transformer

Technical Field

The invention relates to the technical field of transformers, in particular to a multipurpose combined protection transformer.

Background

A Transformer (Transformer) is a device for changing an ac voltage using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like. The power transformer and special transformers (electric furnace transformer, integral transformer, industrial frequency test transformer, voltage regulator, mining transformer, audio transformer, intermediate frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer, reactor, transformer, etc.) can be classified according to the application. The circuit symbols are commonly referred to as T as the beginning of the number, examples are T01, T201, etc.

In order to prevent the transformer from being damaged under the conditions of lightning impact, external short-circuit impact and the like and to normally work, the transformer is usually provided with a lightning arrester, a drop-out fuse, a circuit breaker and other protection devices when being installed, the protection devices are generally installed outside the transformer, the installation process is complex, the occupied area is large, the drop-out fuse is easily influenced by weather factors such as wind, rain, snow and hail and vibration, misoperation is generated, and power failure of non-fault factors is caused. In areas with low air and high altitude and high pollution, the transformer is difficult to maintain due to severe weather conditions, the air is low in air insulation strength, corona and other phenomena are easy to occur around the sleeve, and meanwhile, the transformer is complex to install and detach and is troublesome to repair when the inside of the transformer is required.

Disclosure of Invention

The invention aims to provide a multipurpose combined protection transformer so as to solve the technical problems.

The invention aims to solve the technical problems, and is realized by adopting the following technical scheme: the utility model provides a multipurpose combination protection transformer, includes transformer body, its characterized in that:

the transformer body includes unable adjustment base, and unable adjustment base is the cuboid structure, and four border positions in unable adjustment base's upper end install the protection curb plate perpendicularly, and the upper end level of protection curb plate is provided with the roof, high-voltage bushing and low-voltage bushing are installed to the top of roof, and the arrester is installed to one side of high-voltage bushing, the arrester with be provided with the fuse between the high-voltage bushing, unable adjustment base's upper end is located the internally mounted of protection curb plate and has the transformer tank, the lower extreme of roof is provided with the circuit breaker, the outside of circuit breaker is provided with the cable outlet box, be provided with the installing port on the lateral wall of protection curb plate, the installing port runs through the inner chamber to the transformer body, installs the fin on the installing port, unable adjustment base's lower extreme parallel arrangement has two mounting brackets. The lightning arrester is arranged in front of the high-voltage sleeve, so that the damage caused by lightning can be effectively reduced, and the safe operation of the transformer is maintained; the fuse is arranged between the lightning arrester and the high-voltage bushing, the fuse protects the transformer from damage caused by overcurrent, when the current entering the transformer is larger than a certain value, the fuse acts to break the fault current, the safety of the transformer is protected, and when the fuse is blown under the action of the large current, the power supply of the fault section can be broken through an isolating switch or other measures arranged in front of the transformer and then replaced, so that the operation is very convenient; the setting of fin can make the heat that the transformer body produced at the during operation, in time gives off, prevents that the high temperature from influencing the normal work of circuit breaker, through installing arrester, fuse and circuit breaker in an organic whole with the transformer body to all install in transformer tank outside, it is very convenient to change and maintain after the breaking down, has both improved the security performance of transformer, can effectively prevent the protection device of transformer again that the malfunction takes place, reduces the fault rate of transformer, thereby reduces installation and use maintenance cost by a wide margin.

Preferably, a safety protector is arranged outside the high-voltage sleeve.

Preferably, the lightning arrester is located on the left side of the high voltage bushing.

Preferably, both sides parallel arrangement has T type spout around unable adjustment base upper end, and T type spout is inside to be provided with T type inserted bar, T type inserted bar and T type spout clearance fit, curb plate around the curb plate is including to the protection curb plate, curb plate around the upper end fixed connection of T type inserted bar is provided with the screw on the lateral wall around unable adjustment base, and the screw runs through T type inserted bar and T type spout, installs fixing bolt in the screw, vertically on the both ends inside wall of curb plate around, rectangular spout and left and right sides curb plate sliding fit. Through the setting of T type spout and T type spout for curb plate around can movable mounting on unable adjustment base, screw and fixing bolt's setting, the curb plate is fixed on unable adjustment base around accomplishing, the setting of rectangle spout, the installation of curb plate about accomplishing.

Preferably, screw holes matched with the fixing bolts are also formed in the side walls of the T-shaped inserted bars.

Preferably, the upper end both sides of curb plate are provided with the location round hole around, evenly are provided with vertical screw between the location round hole, four corners of the inside wall of roof are provided with the reference column, and reference column and location round hole clearance fit are provided with the jack between the reference column that is located same one side, and the activity is provided with vertical bolt in the jack. Through setting up of reference column and location round hole, accomplish the roof and the front and back interlude fixed in position, then fix the roof on the front and back interlude through vertical bolt for the side board is tightly installed around between the interlude.

Preferably, six vertical screw holes are respectively arranged on the front side plate and the rear side plate, and the six vertical screw holes are equidistantly arranged.

The beneficial effects of the invention are as follows:

according to the invention, the lightning arrester is arranged in front of the high-voltage sleeve, so that the damage caused by lightning can be effectively reduced, and the safe operation of the transformer is maintained; the fuse is arranged between the lightning arrester and the high-voltage bushing, the fuse protects the transformer from damage caused by overcurrent, when the current entering the transformer is larger than a certain value, the fuse acts to break the fault current, the safety of the transformer is protected, and when the fuse is blown under the action of the large current, the power supply of the fault section can be broken through an isolating switch or other measures arranged in front of the transformer and then replaced, so that the operation is very convenient; the heat dissipation plate is arranged, so that heat generated by the transformer body during working can be dissipated timely, the normal working of the circuit breaker is prevented from being influenced by high temperature, through the arrangement of the T-shaped sliding grooves and the T-shaped sliding grooves, the front side plate and the rear side plate can be movably arranged on the fixed base, the screw holes and the fixed bolts are arranged, the fixing of the front side plate and the rear side plate on the fixed base is completed, the arrangement of the rectangular sliding grooves is completed, the installation of the left side plate and the right side plate is completed, the fixing of the positions between the top plate and the front side plate and the rear side plate is completed through the arrangement of the positioning columns and the positioning round holes, and then the top plate is fixed on the front side plate and the rear side plate through the vertical bolts.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front cross-sectional view of the present invention;

fig. 3 is a schematic perspective view of a protective side plate 102 according to the present invention;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3 in accordance with the present invention;

FIG. 5 is a schematic view of the inner side structure of the top plate 103 according to the present invention;

reference numerals: 1-a transformer body; 101-fixing a base; 102-protecting the side plates; 102 a-front and rear side panels; 102 b-left and right side plates, 103-top plate; 2-high voltage bushing; 3-low voltage bushing; 4-lightning arresters; a 5-fuse; 6, a transformer oil tank; 7-a circuit breaker; 8-a cable outlet box; 9-a mounting port; 10-radiating fins; 11-mounting rack; 12-T-shaped sliding grooves; 13-T shaped insert rod; 14-screw holes; 15-fixing bolts; 16-rectangular sliding grooves; 17-positioning round holes; 18-vertical screw holes; 19-positioning columns; 20-jack; 21-vertical bolts.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present invention are obtained, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-2, a multipurpose combined protection transformer comprises a transformer body 1, the transformer body 1 comprises a fixed base 101, the fixed base 101 is of a cuboid structure, four edge positions at the upper end of the fixed base 101 are vertically provided with a protection side plate 102, the upper end of the protection side plate 102 is horizontally provided with a top plate 103, a high-voltage sleeve 2 and a low-voltage sleeve 3 are arranged above the top plate 103, a lightning arrester 4 is arranged on one side of the high-voltage sleeve 2, a fuse 5 is arranged between the lightning arrester 4 and the high-voltage sleeve 2, a transformer oil tank 6 is arranged at the upper end of the fixed base 101 and positioned in the protection side plate 102, a circuit breaker 7 is arranged at the lower end of the top plate 103, a cable outlet box 8 is arranged at the outer side of the circuit breaker 7, a mounting opening 9 is arranged on the side wall of the protection side plate 102 and penetrates through an inner cavity of the transformer body 1, a cooling fin 10 is arranged on the mounting opening 9, and two mounting frames 11 are arranged at the lower end of the fixed base 101 in parallel.

In this embodiment, in a thunderstorm weather, the lightning arrester 2 releases the lightning shock wave received on the transmission line and the overvoltage generated by the line before entering the transformer body 1, and the lightning arrester 4 on the transformer body 1 is released, and the lightning arrester 4 is mounted before the high-voltage sleeve 2, so that the damage caused by lightning can be effectively reduced, and the safe operation of the transformer can be maintained; the fuse protects the transformer from the damage of overcurrent to the transformer, when the current entering the transformer is large to a certain value, the fuse acts to disconnect fault current, the safety of the transformer is protected, the fuse 3 is fixed on the transformer oil tank 5, when the fuse is fused under the action of large current, the power supply of a fault section can be disconnected through an isolating switch or other measures arranged in front of the transformer, then the transformer is replaced, heat is generated in the transformer body 1 in work, and the heat is dissipated through the radiating fin 10, so that the internal temperature is ensured not to be too high.

Example 2

As shown in fig. 1-5, a multipurpose combined protection transformer comprises a transformer body 1, the transformer body 1 comprises a fixed base 101, the fixed base 101 is of a cuboid structure, four edge positions at the upper end of the fixed base 101 are vertically provided with a protection side plate 102, the upper end of the protection side plate 102 is horizontally provided with a top plate 103, a high-voltage sleeve 2 and a low-voltage sleeve 3 are arranged above the top plate 103, a lightning arrester 4 is arranged on one side of the high-voltage sleeve 2, a fuse 5 is arranged between the lightning arrester 4 and the high-voltage sleeve 2, a transformer oil tank 6 is arranged at the upper end of the fixed base 101 and positioned in the protection side plate 102, a circuit breaker 7 is arranged at the lower end of the top plate 103, a cable outlet box 8 is arranged at the outer side of the circuit breaker 7, a mounting opening 9 is arranged on the side wall of the protection side plate 102 and penetrates through an inner cavity of the transformer body 1, a cooling fin 10 is arranged on the mounting opening 9, and two mounting frames 11 are arranged at the lower end of the fixed base 101 in parallel.

The both sides parallel arrangement has T type spout 12 around unable adjustment base 101 upper end, the inside T type inserted link 13 that is provided with of T type spout 12, T type inserted link 13 and T type spout 12 clearance fit, the curb plate 102 is including curb plate 102a around and curb plate 102b about, curb plate 102a around the upper end fixed connection of T type inserted link 13, be provided with screw 14 on unable adjustment base 101's the front and back lateral wall, screw 14 runs through T type inserted link 13 and T type spout 12, install fixing bolt 15 in the screw 14, vertically be provided with rectangular chute 16 on the both ends inside wall of curb plate 102a around, rectangular chute 16 and curb plate 102b sliding fit.

The upper end both sides of front and back curb plate 102a are provided with location round hole 17, evenly are provided with vertical screw 18 between the location round hole 17, and four corners of the inside wall of roof 103 are provided with reference column 19, and reference column 19 and location round hole 17 clearance fit are provided with jack 20 between the reference column 19 that is located same one side, are provided with vertical bolt 21 in the jack 20 activity.

In the process of installing the shell of the transformer body 1, aligning the T-shaped inserting rod 13 with the T-shaped sliding groove 12, installing the front side plate 102a and the rear side plate 102a on the fixed base 101, installing the left side plate 102b and the right side plate 102b between the front side plate 102a and the rear side plate 102a along the rectangular sliding groove 16, and then tightly fixing the front side plate 102a and the rear side plate 102b with the fixed base 101 by screwing the fixed bolt 15 in the screw hole 14; then, positioning posts 19 are arranged at four corners of the inner side wall of the top plate 103, positioning round holes 17 are arranged at two sides of the upper end of the front side plate 102a and the rear side plate 102a, the vertical bolts 21 penetrate through the insertion holes 20 and are fixed with the vertical screw holes 18, the fixation between the top plate 103 and the front side plate 102a is completed, and the left side plate 102b and the right side plate 102b are tightly fixed between the fixed base 101 and the top plate 103.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multipurpose combination protection transformer, includes transformer body (1), its characterized in that:

the transformer body (1) comprises a fixed base (101), the fixed base (101) is of a cuboid structure, four edge positions at the upper end of the fixed base (101) are vertically provided with a protection side plate (102), the upper end of the protection side plate (102) is horizontally provided with a top plate (103), a high-voltage sleeve (2) and a low-voltage sleeve (3) are arranged above the top plate (103), a lightning arrester (4) is arranged on one side of the high-voltage sleeve (2), a fuse (5) is arranged between the lightning arrester (4) and the high-voltage sleeve (2), the upper end of the fixed base (101) is located in a transformer oil tank (6) arranged in the protection side plate (102), the lower end of the top plate (103) is provided with a circuit breaker (7), the outer side of the circuit breaker (7) is provided with a cable outlet box (8), a mounting opening (9) is arranged on the side wall of the protection side plate (102), the mounting opening (9) penetrates through an inner cavity of the transformer body (1), a radiator (10) is arranged on the mounting opening (9), and the two radiator fins (11) are arranged in parallel to each other;

t-shaped sliding grooves (12) are formed in the front side and the rear side of the upper end of the fixed base (101) in parallel, T-shaped inserting rods (13) are arranged in the T-shaped sliding grooves (12), the T-shaped inserting rods (13) are in clearance fit with the T-shaped sliding grooves (12), the protection side plates (102) comprise front and rear side plates (102 a) and left and right side plates (102 b), the upper ends of the T-shaped inserting rods (13) are fixedly connected with the front and rear side plates (102 a), screw holes (14) are formed in the front and rear side walls of the fixed base (101), the screw holes (14) penetrate through the T-shaped inserting rods (13) and the T-shaped sliding grooves (12), fixing bolts (15) are arranged in the screw holes (14), rectangular sliding grooves (16) are vertically arranged on the inner side walls at the two ends of the front and rear side plates (102 a), and the rectangular sliding grooves (16) are in sliding fit with the left and right side plates (102 b);

the utility model discloses a vertical bolt (21) that is provided with in the jack (20), including front and back curb plate (102 a), upper end both sides of curb plate (102 a) are provided with location round hole (17), evenly are provided with vertical screw (18) between location round hole (17), four corners of inside wall of roof (103) are provided with reference column (19), and reference column (19) and location round hole (17) clearance fit are provided with jack (20) between reference column (19) that are located same one side, and the activity is provided with in jack (20).

2. A multipurpose combined protection transformer according to claim 1, characterized in that: the high-voltage sleeve (2) is provided with a safety protector.

3. A multipurpose combined protection transformer according to claim 1, characterized in that: the lightning arrester (4) is positioned on the left side of the high-voltage bushing (2).

4. A multipurpose combined protection transformer according to claim 1, characterized in that: screw holes matched with the fixing bolts (15) are also formed in the side walls of the T-shaped inserted rods (13).

5. The multipurpose combined protection transformer of claim 4, wherein: six vertical screw holes (18) are respectively formed in the front side plate (102 a) and the rear side plate (102 a), and the six vertical screw holes are equidistantly arranged.