CN113327747A

CN113327747A - Compact transformer and transformer substation with same

Info

Publication number: CN113327747A
Application number: CN202110880568.7A
Authority: CN
Inventors: 邹一君; 高志峰; 姚东伟; 查志文
Original assignee: Changzhou Dongfang Sanhuan Electrical Co Ltd
Current assignee: Changzhou Dongfang Sanhuan Electrical Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-08-31
Anticipated expiration: 2041-08-02
Also published as: CN113327747B

Abstract

A compact transformer and a transformer substation assembled with the same belong to the technical field of transformers, and comprise a transformer body, an oil conservator, a first capsule bag, a second capsule bag and a third capsule bag, wherein a sealing mechanism is arranged in the oil conservator, the sealing mechanism comprises the first capsule bag, the second capsule bag and the third capsule bag, the outer side walls of the first capsule bag, the second capsule bag and the third capsule bag are respectively attached to the inner side wall of the oil conservator, and capsules are respectively placed in the first capsule bag, the second capsule bag and the third capsule bag. The capsule bag of the inner layer and the inner side wall of the oil conservator are enabled to generate gaps, so that the defect of heat dissipation of the transformer is overcome.

Description

Compact transformer and transformer substation with same

Technical Field

The invention relates to the field of transformers, in particular to a compact transformer and a transformer substation with the compact transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and main components of the transformer are a primary coil, a secondary coil and an iron core in a transformer body, wherein an oil tank and an oil conservator contained in the oil immersed transformer are also important components of the transformer, and the transformer in the transformer substation needs to be installed in a transformer box of the transformer substation for use.

The prior art, wherein publication number CN110534306A discloses an on-load voltage regulation power transformer with conservator protection function, which comprises an conservator barrel, a capsule mechanism is arranged in the inner cavity of the conservator barrel, the capsule mechanism comprises a first capsule, a second capsule and a third capsule, the third capsule is sleeved on the outer side of the second capsule, the second capsule is sleeved on the outer side of the first capsule, an exhaust pipe is fixedly arranged at the center of the top of the conservator barrel, the capsule mechanism is arranged to be composed of the first capsule, the second capsule and the third capsule, so as to prevent the situation that the insulating oil enters the capsule and overflows from reaching the respirator through a connecting pipe due to the rupture of the capsule, and the third capsule is in sealing connection with the second capsule, and is communicated with the respirator only through the first capsule and the second capsule, thereby reducing the area of air entering the capsule mechanism through the respirator, the probability of insulating oil and air contact is reduced, however, because first capsule, second capsule and third capsule adopt the mode of cup jointing to place in the inside of conservator, thereby when being located outermost capsule when appearing damaged under the highly compressed promotion of transformer oil in the oil tank, can appear the gap between the inside wall of inside two-layer capsule and conservator, thereby lead to transformer oil and the air contact in the oil tank, the ageing speed of transformer oil has been accelerated, be not convenient for the heat dissipation of transformer oil to iron core and winding, thereby lead to the iron loss of transformer, the enhancement of magnetic loss and copper loss degree, be unfavorable for the high-efficient use of transformer.

Disclosure of Invention

The invention aims to provide a compact transformer and a transformer substation assembled with the same.A sealing mechanism is arranged in an oil conservator, and the sealing mechanism is added with a bearing plate on the basis of a first capsule, a second capsule bag, a third capsule bag and a capsule so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a compact transformer comprises a transformer body, an oil conservator, a first capsule bag, a second capsule bag and a third capsule bag, wherein a sealing mechanism is installed inside the oil conservator, the sealing mechanism comprises the first capsule bag, the second capsule bag and the third capsule bag, the outer side walls of the first capsule bag, the second capsule bag and the third capsule bag are attached to the inner side wall of the oil conservator, capsules are placed inside the first capsule bag, the second capsule bag and the third capsule bag, the capsules longitudinally penetrate through the top of the first capsule bag, the first capsule bag is located above the second capsule bag, and the second capsule bag is located above the third capsule bag.

As a further scheme of the invention: the oil conservator is characterized in that a through hole is formed in the second capsule bag, a bearing plate is installed inside the second capsule bag and transversely penetrates through the second capsule bag through the through hole, third limiting grooves are formed in two sides of the inner side wall of the oil conservator, the bearing plate is connected with the oil conservator in a sliding mode through the third limiting grooves, the bearing plate is in an arc design, and the arc shape of the bearing plate is matched with the oil conservator.

As a still further scheme of the invention: the upper portion of the right side of the conservator is fixedly connected with a display mechanism, the display mechanism comprises a first observation cavity and a second observation cavity, the first observation cavity and the second observation cavity are all communicated with the conservator, the horizontal position of the first observation cavity is located above a third capsule bag and below a first capsule, the second observation cavity is located above the first capsule bag, and the second capsule bag is not in contact with one side, communicated with the conservator, of the first observation cavity and the second observation cavity.

As a still further scheme of the invention: the conservator further comprises a glass tube, a floating ball is placed inside the glass tube, a warning frame is arranged on the upper portion of the right side of the glass tube and is connected with the glass tube in a rotating mode, the warning frame is connected with the glass tube in a penetrating mode, the sealing performance between the glass tube and the warning frame is good, and the warning frame is arranged in a gourd-shaped mode.

As a still further scheme of the invention: the bottom right side fixed connection and the weight of warning frame, the weight semicircular in shape sets up, and the outward appearance of weight personally submits smooth setting.

As a still further scheme of the invention: the transformer body still includes the support frame, the support frame is triangle-shaped and sets up, the bottom at the conservator is installed to the support frame, the conservator passes through the top fixed connection of support frame and oil tank, the bottom through connection of conservator has communicating pipe, the conservator passes through communicating pipe and oil tank through connection.

A transformer substation for assembling a compact transformer comprises a transformer substation box body and a ladder stand, wherein the ladder stand is arranged in a placing cavity, a placing cavity is arranged at the front end of the transformer substation box body, the upper part of the inner side wall of the placing cavity is fixedly connected with a limiting block, a second rotating shaft is rotatably connected inside the limiting block, a sleeve is fixedly sleeved on the second rotating shaft, a third rotating shaft is fixedly connected at one end of the ladder stand close to the limiting block, a connecting rod is fixedly connected at one end of the sleeve far away from the limiting block, the connecting rod is rotatably connected with the crawling ladder through a third rotating shaft, the first rotating shaft is arranged at the bottom of the crawling ladder, the bottom of the ladder stand is provided with a folding plate which is rotatably connected with the ladder stand through a first rotating shaft, one side fixedly connected with supporting shoe that the cat ladder is close to the stopper, place and seted up the second spacing groove on the inside wall in chamber.

As a still further scheme of the invention: the bottom fixedly connected with base of transformer substation's box, the vary voltage assembly is installed on the top of transformer substation's box, the front end of transformer substation's box is equipped with places the chamber, the inside in placing the chamber is placed to the cat ladder, the sliding door is installed to the front end of transformer substation's box, the sliding door slides placing the chamber dead ahead, be provided with the rotation lock on the sliding door, the top fixedly connected with fixed block of base, the one end fixedly connected with dog of transformer substation's box is kept away from to the fixed block, the dog is close to the one end of transformer substation's box and has seted up first spacing groove, the stopper is the U-shaped setting, the inside rotation of stopper is connected with the second axis of rotation, the fixed cover has connect the sleeve pipe in the second axis of rotation.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention arranges the sealing mechanism in the oil conservator, the sealing mechanism adds the bearing plate on the basis of the first capsule, the second capsule, the third capsule and the capsule, solves the problems that in the prior art, the first capsule, the second capsule and the third capsule adopt a sleeving way to realize that the outermost capsule reinforced by the capsule breaks under high pressure, so that the inner capsule and the inner side wall of the oil conservator generate gaps, the first capsule, the second capsule and the third capsule are arranged in the oil conservator in a layer-by-layer overlapping way, the sealing performance of the transformer oil tank can be improved, the defect of the internal sealing performance of the oil conservator is caused, the aging speed of transformer oil in the oil conservator is reduced, the heat dissipation efficiency of the transformer oil on an iron core and a winding is improved, the iron loss, the magnetic loss and the copper loss of the transformer are reduced, the transformation effect of the transformer is facilitated, and the service life of the transformer is prolonged, has certain economic benefit in the actual application process.

2. Meanwhile, the bearing plate is arranged between the first capsule bag and the second capsule bag, so that the extrusion force of high pressure generated by shaking of the transformer oil in the oil tank on the first capsule bag, the second capsule bag and the third capsule bag can be reduced, the pushing force borne by the capsules can be effectively reduced, the probability of damage of the first capsule layer, the second capsule layer and the third capsule layer is reduced, and the oil conservator is favorable for providing buffering for thermal expansion and contraction of the transformer oil in the oil tank.

3. According to the transformer oil tank, the warning frame is arranged on the glass tube on the side face of the oil conservator, and the warning frame can be used for warning transformer detection personnel to judge the water content generated after transformer oil in the oil tank is contacted with air in the using process, so that water in the transformer is discharged in time, the water content of the transformer oil is reduced, and the heat dissipation of the transformer oil to the iron core and the winding is improved.

4. Through setting up display mechanism, display mechanism contains first observation chamber and second and observes the chamber, observes the chamber through observing first observation chamber and second and whether advance transformer oil, judges whether first bag layer and second bag layer produce the broken condition, and the maintainer of being convenient for detects transformer conservator, has solved the problem that current transformer conservator internal conditions is difficult to the judgement.

5. According to the transformer substation box, the crawling ladder is arranged in the transformer substation box body, so that a worker can conveniently install and maintain the transformer substation assembly, the defect that the worker needs to carry the artificial ladder during maintenance every time is overcome, and the condition that maintenance personnel easily fall off due to instability of the artificial ladder in the use process is solved, so that the transformer substation box is beneficial to the safety of transformer substation maintenance.

Drawings

Fig. 1 is a perspective view of a substation required for assembling a compact transformer.

Fig. 2 is a perspective view of a compact transformer.

Fig. 3 is a schematic front view of a substation required for assembling the compact transformer.

Fig. 4 is a schematic structural view of the placing cavity and the ladder stand in fig. 3 during installation.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a state diagram of the ladder stand in fig. 4 in use.

Fig. 7 is an enlarged view at B in fig. 6.

Fig. 8 is a perspective view of fig. 7 when the limiting block and the connecting rod are connected.

Fig. 9 is a schematic structural diagram of a conservator in a compact transformer.

Fig. 10 is an enlarged view of a compact transformer at B in fig. 9.

Fig. 11 is a schematic structural diagram of a compact transformer sealing mechanism.

Fig. 12 is a schematic structural diagram of the compact transformer sealing mechanism after a bearing plate is installed.

In the figure: 10. a transformer substation box body; 11. a base; 111. a fixed block; 112. a stopper; 1121. a first limit groove; 12. a placement chamber; 121. climbing a ladder; 1211. folding the board; 1212. a first rotating shaft; 1213. a support block; 122. a second limit groove; 123. a limiting block; 1231. a connecting rod; 1232. a second rotating shaft; 1233. a sleeve; 1234. a third rotating shaft; 124. a rotation lock; 125. a sliding door; 13. a voltage transformation assembly; 20. a transformer body; 21. an oil tank; 22. a support frame; 23. an oil conservator; 231. a third limiting groove; 24. a respirator; 25. a connecting pipe; 26. a glass tube; 261. a floating ball; 262. a warning frame; 263. a weighting block; 27. an oil inlet pipe; 28. a communicating pipe; 29. a gas release plug; 30. a sealing mechanism; 301. a first capsule bag; 302. a second capsule bag; 303. a third capsule bag; 304. a capsule; 305. a bearing plate; 31. a display mechanism; 311. a first observation cavity; 312. a second viewing chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 12, a compact transformer and a substation equipped with the same includes the following embodiments:

example 1:

a compact transformer is disclosed, as shown in FIGS. 2, 9-11, and comprises a transformer body 20, wherein the transformer body 20 comprises an oil tank 21, a support frame 22 and an oil conservator 23, the support frame 22 is installed at the bottom end of the oil conservator 23, the oil conservator 23 is fixedly connected with the top end of the oil tank 21 through the support frame 22, the bottom end of the oil conservator 23 is in through connection with a communication pipe 28, the oil conservator 23 is in through connection with the oil tank 21 through the communication pipe 28, both the oil tank 21 and the oil conservator 23 are internally provided with transformer oil, the temperature of the transformer oil inside the oil tank 21 is higher than that of the transformer oil inside the oil conservator 23, the oil conservator 23 further comprises a breather 24, a connection pipe 25, a glass pipe 26, an oil inlet pipe 27 and an air relief plug 29, the breather 24 is installed at the top end of the oil conservator 23 and is in through connection with the oil conservator 23, the air relief plug 29 is installed at the top end of the oil conservator 23, the air pressure inside the oil conservator 23 is adjusted through the air relief plug 29, the oil inlet pipe 27 is installed at the bottom end of the conservator 23 and is in through connection with the conservator 23, the connecting pipe 25 is fixedly connected with the bottom end of the conservator 23 and is in through connection with the conservator 23, one end of the connecting pipe 25, which is far away from the conservator 23, is fixedly connected with the glass tube 26, the connecting pipe 25 is in through connection with the glass tube 26, the sealing mechanism 30 is installed inside the conservator 23, the sealing mechanism 30 comprises a first capsule bag 301, a second capsule bag 302 and a third capsule bag 303, the outer side walls of the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are all attached to the inner side wall of the conservator 23, the capsules 304 are all placed inside the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303, the capsules 304 longitudinally penetrate through the top of the first capsule bag 301, the first capsule bag 301 is located above the second capsule bag 302, the second capsule bag 302 is located above the third capsule bag 303, the respirator 24 is connected to the capsule 304 in the first capsule bag 301.

In this embodiment, the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are installed inside the conservator 23 in a stacked manner, so that the third capsule bag 303 in contact with the transformer oil can be prevented from being broken under the pushing of high pressure formed by the transformer oil, the water content in the oil is increased due to the contact of the high-pressure oil with air through the broken third capsule bag 303, the aging speed of the transformer oil is increased, and the heat dissipation degree of the transformer oil to the internal structure of the transformer is reduced, because the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are attached to the inner side wall of the conservator 23, the sealing degree of the transformer oil in the conservator 23 can be enhanced due to the attachment of the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 to the inner side wall of the conservator 23, and after the third capsule bag 303 in contact with the transformer oil is broken, the second capsule bag 302 can maintain the sealing property of the transformer oil in the conservator 23, similarly, after the second capsule bag 302 and the third capsule bag 303 are both broken, the first capsule bag 301 can still isolate the transformer oil, so that the transformer oil is prevented from contacting with air, the condition that the transformer oil is aged is avoided, and the transformer oil realizes the heat dissipation of the transformer, so that the transformation effect of the transformer is improved, and the iron loss, the magnetic loss and the copper loss degree of the transformer are reduced.

Example 2:

according to fig. 9 and 12, based on embodiment 1, a through hole is formed in the second capsule bag 302, a force bearing plate 305 is installed in the second capsule bag 302, the force bearing plate 305 transversely penetrates through the second capsule bag 302 through the through hole, third limiting grooves 231 are formed in both sides of the inner side wall of the oil conservator 23, the force bearing plate 305 is slidably connected with the oil conservator 23 through the third limiting grooves 231, the force bearing plate 305 is designed in an arc shape, and the arc shape of the force bearing plate 305 is matched with the oil conservator 23.

In this embodiment, the force bearing plates 305 arranged in the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 can reduce the extrusion force of the high pressure generated by the shaking of the transformer oil in the oil tank 21 on the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303, so that the pushing force borne by the capsule 304 can be effectively reduced, the probability of damage of the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 is reduced, and the oil conservator 23 is helpful for buffering the thermal expansion and contraction of the transformer oil in the oil tank 21.

Example 3:

a compact transformer is disclosed, as shown in FIGS. 9-10, based on embodiment 1 or embodiment 2, a floating ball 261 is placed inside a glass tube 26, a warning frame 262 is disposed on the upper portion of the right side of the glass tube 26, the warning frame 262 is rotatably connected with the glass tube 26, the warning frame 262 is connected with the glass tube 26 in a penetrating manner, the sealing performance between the glass tube 26 and the warning frame 262 is good, the warning frame 262 is arranged in a gourd shape, so that the floating ball 261 entering the warning frame 262 after the warning frame 262 is rotated can be returned to the inside of the glass tube 26 again, the floating ball 261 is reused, the right side of the bottom end of the warning frame 262 is fixedly connected with a weighting block 263, the weighting block 263 can facilitate the warning frame 262 after being rotated to be returned to the original position, so that the warning effect of the warning frame 262 is achieved again, a display mechanism 31 is fixedly connected to the upper portion of the right side of an oil conservator 23, the display mechanism 31 comprises a first observation cavity 311 and a second observation cavity 312, the first observation cavity 311 and the second observation cavity 312 are both communicated with the conservator 23, the horizontal position of the first observation cavity 311 is located above the third capsule bag 303 and below the first capsule bag 301, the second observation cavity 312 is located above the first capsule bag 301, and one side of the second capsule bag 302, which is communicated with the first observation cavity 311 and the second observation cavity 312, is not contacted with the conservator 23.

In the embodiment, the first observation cavity 311 and the second observation cavity 312 are arranged in the display mechanism 31, the second observation cavity 312 is arranged above the first capsule bag 301 in the horizontal direction, and the first observation cavity 311 and the second observation cavity 312 are communicated with the conservator 23, so that the variable pressure oil in the conservator 23 can enter the second observation cavity 312 after the first capsule bag 301 is damaged, and similarly, the first observation cavity 311 is arranged above the horizontal line of the second capsule bag 302 and below the horizontal line of the first capsule bag 301, so that the variable pressure oil in the conservator 23 enters the first observation cavity 311 after the third capsule bag 303 and the second capsule bag 302 are broken, so that a detector can judge whether the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are damaged by observing the condition that the first observation cavity 311 and the second observation cavity 312 on the display mechanism 31 enter the variable pressure oil, thereby can in time judge the inside problem that appears of conservator 23, the work efficiency of maintainer has been improved, and simultaneously, through setting up warning frame 262 in the side at glass pipe 26, when the inside water content of oil tank 21 and conservator 23 reaches a quantitative time, liquid level in the glass pipe 26 rises to the inside that the take the altitude promotes floater 261 and gets into warning frame 262, the measurement personnel can be through observing whether the floater 261 gets into warning frame 262, judge whether too much the water content of oil tank 21, thereby carry out the drainage operation to oil tank 21, after the completion, because warning frame 262 is calabash shape design, therefore, through rotating warning frame 262 can be with the leading-in inside of glass pipe 26 of floater 261, the warning frame 262 after the weight 263 can be convenient for rotate resets.

A transformer substation for assembling a compact transformer is disclosed, and as shown in FIGS. 1-12, the transformer substation comprises a transformer substation box 10, a base 11 is fixedly connected to the bottom end of the transformer substation box 10, a transformer assembly 13 is installed at the top end of the transformer substation box 10, a placing cavity 12 is arranged at the front end of the transformer substation box 10, a sliding door 125 is installed at the front end of the transformer substation box 10, the sliding door 125 slides right ahead of the placing cavity 12, a rotating lock 124 is arranged on the sliding door 125, the rotating lock 124 can realize the opening and closing of the sliding door 125 and the placing cavity 12 through a key matched with the rotating lock 124, a fixed block 111 is fixedly connected to the top end of the base 11, a stop 1121 is fixedly connected to one end of the fixed block 111 far from the transformer substation box 10, a first limit groove is formed in one end of the stop 112 close to the transformer substation box 10, and a limit block 123 is fixedly connected to the upper portion of the inner side wall of the placing cavity 12, the stopper 123 is the setting of U-shaped, the inside of stopper 123 is rotated and is connected with second axis of rotation 1232, the fixed cover has connect sleeve 1233 on the second axis of rotation 1232, the internally mounted who places chamber 12 has cat ladder 121, cat ladder 121 is close to the one end fixedly connected with third axis of rotation 1234 of stopper 123, the one end fixedly connected with connecting rod 1231 of stopper 123 is kept away from to sleeve 1233, connecting rod 1231 rotates with cat ladder 121 through third axis of rotation 1234 and is connected, first axis of rotation 1212 is installed to the bottom of cat ladder 121, folded sheet 1211 rotates with cat ladder 121 through first axis of rotation 1212 and is connected, cat ladder 121 is close to one side fixedly connected with supporting shoe 1213 of stopper 123, place and seted up second spacing groove 122 on the inside wall of chamber 12.

When a maintenance worker needs to maintain the transformer assembly 13, the sliding door 125 and the placing cavity 12 need to be opened to form a closed state by using a key matched with the rotating lock 124, the sliding door 125 pulls the ladder 121 in the placing cavity 12, the folding plate 1211 is rotated to control the folding plate 1211 to be placed horizontally with the ground, at this time, the supporting block 1213 on the ladder 121 is just clamped into the second limiting groove 122, the folding plate 1211 is just clamped into the second limiting groove 122 to complete the stabilization of the ladder 121, the ladder 121 can facilitate the installation and maintenance of the transformer assembly 13 by the worker, the defect that the worker needs to carry an artificial ladder during each maintenance is overcome, and the condition that the worker falls off due to the instability of the artificial ladder in the using process is solved, so that the transformer assembly maintenance safety is benefited.

The working principle of the invention is as follows:

firstly, the transformer oil is injected into the interior of the conservator 23 through the oil inlet pipe 27, after the injection is completed, the sealing performance between the oil inlet pipe 27 and the conservator 23 is ensured, it should be noted that, when a maintenance worker needs to maintain the transformer assembly 13, the sliding door 125 and the placing cavity 12 need to be opened by a key matched with the rotating lock 124, the sliding door 125 pulls the ladder 121 in the placing cavity 12, the folding plate 1211 is controlled to be placed horizontally with the ground by rotating the folding plate 1211, at this time, the supporting block 1213 on the ladder 121 is just clamped into the second limiting groove, the folding plate 1211 is just clamped into the second limiting groove 122, the stabilization of the ladder 121 is completed, the ladder 121 can facilitate the installation and maintenance of the transformer assembly 13 by a worker, the defect that the worker needs to carry the artificial ladder every maintenance is solved, and the condition that the maintenance worker easily falls due to the instability of the artificial ladder in the use process is solved, therefore, the safety of transformer substation maintenance is benefited, the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are arranged inside the oil conservator 23 in a superposition mode, the third capsule bag 303 contacted with the transformer oil can be prevented from being broken under the pushing of high pressure formed by the transformer oil, the water content in the oil is increased due to the fact that the high-pressure oil is contacted with air through the broken third capsule bag 303, the aging speed of the transformer oil is accelerated, the heat dissipation degree of the transformer oil to the internal structure of the transformer is reduced, as the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are attached to the inner side wall of the oil conservator 23, the sealing degree of the transformer oil in the oil conservator 23 can be enhanced due to the fact that the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are attached to the inner side wall of the oil conservator 23, and after the third capsule bag 303 contacted with the transformer oil is broken, the second capsule bag 302 is capable of maintaining the tightness of the pressurized oil inside the conservator 23, and in the same way, after the second capsule bag 302 and the third capsule bag 303 are both ruptured, the first capsule bag 301 can still isolate the transformer oil, prevent the transformer oil from contacting with air to cause the aging of the transformer oil, realize the heat dissipation of the transformer, thereby improving the transformation effect of the transformer, reducing the iron loss, magnetic loss and copper loss degree of the transformer, and further, the force bearing plates 305 arranged in the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 can reduce the extrusion force of high pressure generated by shaking of the variable pressure oil in the oil tank 21 on the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303, therefore, the pushing force borne by the capsule 304 can be effectively reduced, the probability of damage of the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 is reduced, and the oil conservator 23 is favorable for buffering the thermal expansion and expansion of the variable pressure oil in the oil tank 21.

The first observation cavity 311 and the second observation cavity 312 are arranged in the display mechanism 31, the second observation cavity 312 is arranged above the first capsule bag 301 in the horizontal direction, and the first observation cavity 311 and the second observation cavity 312 are communicated with the conservator 23, so that the variable pressure oil in the conservator 23 can enter the second observation cavity 312 after the first capsule bag 301 is damaged, and similarly, the first observation cavity 311 is positioned above the horizontal line of the second capsule bag 302 and below the horizontal line of the first capsule bag 301, so that the variable pressure oil in the conservator 23 enters the first observation cavity 311 after the third capsule bag 303 and the second capsule bag 302 are broken, so that a detector can judge whether the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 are damaged by observing the condition that the first observation cavity 311 and the second observation cavity 312 on the display mechanism 31 enter the variable pressure oil, thereby can in time judge the inside problem that appears of conservator 23, the work efficiency of maintainer has been improved, and simultaneously, through setting up warning frame 262 in the side at glass pipe 26, when the inside water content of oil tank 21 and conservator 23 reaches a quantitative time, liquid level in the glass pipe 26 rises to the inside that the take the altitude promotes floater 261 and gets into warning frame 262, the measurement personnel can be through observing whether the floater 261 gets into warning frame 262, judge whether too much the water content of oil tank 21, thereby carry out the drainage operation to oil tank 21, after the completion, because warning frame 262 is the calabash shape design, therefore, through rotating warning frame 262 can be with the leading-in inside of glass pipe 26 of floater 261, the warning frame 262 after the weight 263 can be convenient for rotate resets, accomplish the inside detection of conservator 23.

It should be particularly noted that the first capsule bag 301, the second capsule bag 302 and the third capsule bag 303 in the present application are applications in the prior art, and the force bearing plate 305 is an innovative point of the present application, which effectively solves the problem that the aging speed of the pressure change oil in the oil tank 21 is fast.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A compact transformer comprises a transformer body (20), an oil conservator (23), a first capsule bag (301), a second capsule bag (302) and a third capsule bag (303), characterized in that a sealing mechanism (30) is arranged in the oil conservator (23), the sealing mechanism (30) comprises a first capsule bag (301), a second capsule bag (302) and a third capsule bag (303), the outer side walls of the first capsule bag (301), the second capsule bag (302) and the third capsule bag (303) are all attached to the inner side wall of the oil conservator (23), the first capsule bag (301), the second capsule bag (302) and the third capsule bag (303) are all internally provided with capsules (304), the capsule (304) extends longitudinally through the top of a first capsule bag (301), the first capsule bag (301) being located above a second capsule bag (302), the second capsule bag (302) being located above a third capsule bag (303).

2. The compact transformer according to claim 1, wherein a through hole is formed in the second capsule bag (302), a force bearing plate (305) is mounted in the second capsule bag (302), the force bearing plate (305) transversely penetrates through the second capsule bag (302) through the through hole, third limiting grooves (231) are formed in both sides of the inner side wall of the oil conservator (23), the force bearing plate (305) is slidably connected with the oil conservator (23) through the third limiting grooves (231), the force bearing plate (305) is designed in an arc shape, and the arc shape of the force bearing plate (305) is matched with the oil conservator (23).

3. The compact transformer according to claim 1, wherein a display mechanism (31) is fixedly connected to the upper right side of the conservator (23), the display mechanism (31) comprises a first observation cavity (311) and a second observation cavity (312), the first observation cavity (311) and the second observation cavity (312) are both in through connection with the conservator (23), the horizontal position of the first observation cavity (311) is located above the third capsule bag (303) and below the first capsule (301), the second observation cavity (312) is located above the first capsule bag (301), and the second capsule bag (302) is not in contact with one side of the first observation cavity (311) and the second observation cavity (312) through the conservator (23).

4. The compact transformer of claim 1, wherein the conservator (23) further comprises a glass tube (26), and is characterized in that a floating ball (261) is placed inside the glass tube (26), a warning frame (262) is arranged on the upper portion of the right side of the glass tube (26), the warning frame (262) is rotatably connected with the glass tube (26), the warning frame (262) is connected with the glass tube (26) in a penetrating manner, the sealing performance between the glass tube (26) and the warning frame (262) is good, and the warning frame (262) is arranged in a gourd shape.

5. The compact transformer of claim 4, characterized in that the right side of the bottom end of the warning frame (262) is fixedly connected with the weight (263), the weight (263) is disposed in a semicircular shape, and the outer surface of the weight (263) is disposed in a smooth shape.

6. The compact transformer according to claim 1, wherein the transformer body (20) further comprises a support frame (22), the support frame (22) is arranged in a triangular shape, the support frame (22) is installed at the bottom end of the conservator (23), the conservator (23) is fixedly connected with the top end of the oil tank (21) through the support frame (22), the bottom end of the conservator (23) is connected with a communicating pipe (28) in a penetrating manner, and the conservator (23) is connected with the oil tank (21) through the communicating pipe (28).

7. A transformer substation, comprising the compact transformer according to any one of claims 1 to 6, and further comprising a transformer substation box body (10) and a ladder stand (121), wherein a placing cavity (12) is arranged at the front end of the transformer substation box body (10), the ladder stand (121) is installed inside the placing cavity (12), a limiting block (123) is fixedly connected to the upper portion of the inner side wall of the placing cavity (12), a second rotating shaft (1232) is rotatably connected to the limiting block (123), a sleeve (1233) is fixedly connected to the second rotating shaft (1232), a third rotating shaft (1234) is fixedly connected to one end, close to the limiting block (123), of the ladder stand (121), a connecting rod (1231) is fixedly connected to one end, far away from the limiting block (123), of the sleeve (1233), and the connecting rod (1231) is rotatably connected to the ladder stand (121) through the third rotating shaft (1234), first axis of rotation (1212) is installed to the bottom of cat ladder (121), folded sheet (1211) rotates with cat ladder (121) through first axis of rotation (1212) and is connected, one side fixedly connected with supporting shoe (1213) that cat ladder (121) are close to stopper (123), place and seted up second spacing groove (122) on the inside wall of chamber (12).

8. A transformer substation according to claim 7, characterized in that a base (11) is fixedly connected to the bottom end of the transformer substation box body (10), a transformer assembly (13) is installed at the top end of the transformer substation box body (10), a placing cavity (12) is arranged at the front end of the transformer substation box body (10), the ladder stand (121) is placed inside the placing cavity (12), a sliding door (125) is installed at the front end of the transformer substation box body (10), the sliding door (125) slides right ahead of the placing cavity (12), a rotating lock (124) is arranged on the sliding door (125), a fixed block (111) is fixedly connected to the top end of the base (11), a stop block (112) is fixedly connected to one end, far away from the transformer substation box body (10), of the stop block (112) close to the transformer substation box body (10), and a first limit groove (1121) is formed in one end, close to the transformer substation box body (10), the limiting block (123) is arranged in a U shape, a second rotating shaft (1232) is connected to the inside of the limiting block (123) in a rotating mode, and a sleeve (1233) is fixedly sleeved on the second rotating shaft (1232).