CN106449016B - Novel transformer and case become - Google Patents

Abstract

The invention discloses a novel transformer and a box transformer. The transformer includes a top cover, a high-voltage access terminal; a raised seat, the raised seat is fixed on the top cover; The end of the raised seat, the high-voltage access end passes through the through hole in the insulating porcelain bottle, and the included angle between the central axes of adjacent insulating porcelain bottles is an acute angle; One end presses the insulating porcelain bottle; a connecting piece, the connecting piece is used to connect the fixing piece and the top cover. The invention has the advantages of good insulation effect and high strength.

Description

New transformer and box change

technical field

The invention relates to a voltage transformer, in particular to a novel transformer and a box transformer.

Background technique

Power transformers are one of the main equipment in power plants and substations. The role of the transformer is multifaceted. It can not only increase the voltage to send electric energy to the power consumption area, but also reduce the voltage to the voltage used at all levels to meet the needs of power consumption.

Existing transformer top covers are flat plates, and in order to improve the protection strength, the thickness of the top cover is about 6mm. In addition, the fixing method of the porcelain bottles on the outer side of the high-voltage access end is: the porcelain bottles are arranged vertically, and the distance between the porcelain bottles is limited on the effective area of the top cover, which reduces the insulation effect to a certain extent.

Contents of the invention

In order to overcome the above-mentioned defects in the prior art, the present invention provides a novel transformer with good insulation effect.

The purpose of the present invention is achieved through the following technical solutions:

A novel transformer, the transformer includes a top cover, a high-voltage access terminal; the novel transformer also includes:

a raised seat, the raised seat is fixed on the top cover;

Insulating porcelain bottles, the insulating porcelain bottles are fixed at the end of the rising seat, the high-voltage access end passes through the through hole in the insulating porcelain bottles, and the included angle between the central axes of adjacent insulating porcelain bottles is an acute angle;

A fixing piece, one end of the fixing piece bears against the raised seat, and the other end presses against the insulating porcelain bottle;

A connecting piece, the connecting piece is used for connecting the fixing piece and the top cover.

According to the above-mentioned novel transformer, preferably, the fixing member is in an "L" shape.

According to the above-mentioned novel transformer, optionally, an elastic member is provided between the insulating porcelain bottle and the raised seat.

According to the above novel transformer, optionally, the fixing member has a through hole suitable for the connecting member to pass through.

According to the above-mentioned novel transformer, optionally, the central axis of the raised seat is perpendicular to the top cover, the angle between the ends and the central axis is an acute angle, and the angle between the normal lines of adjacent ends is acute angle.

According to the above-mentioned novel transformer, optionally, the included angle between the central axis of the raised seat and the top cover is an acute angle, the included angle between the end and the central axis is a right angle, and the normal of the adjacent end The angle between them is an acute angle.

The object of the present invention is also to provide a box change applying the above-mentioned transformer, and the object of the invention is achieved through the following technical solutions:

A box change, the box change includes a transformer, a low-voltage switchgear, a high-voltage switchgear and a box; it is characterized in that:

The box includes a first chamber, a second chamber and a third chamber which are isolated from each other;

The transformer adopts the above-mentioned new transformer and is installed in the second room;

The high-voltage switchgear is arranged in the first chamber and is electrically connected to the transformer;

The low-voltage switchgear is arranged in the third chamber and is electrically connected to the transformer.

According to the above box change, optionally, the box change further includes:

A grounding device, the grounding device comprising:

a first component, the first component comprising a vertical portion and a horizontal portion, the vertical portion being fixed to the bottom of the second chamber and grounded;

a second part, said second part comprising a vertical part and a horizontal part, a part of the horizontal part mounted on the horizontal part of said first part;

The third part, the third part includes a vertical part and a horizontal part arranged above the horizontal part of the second part, and the horizontal part is connected with the horizontal part of the second part and the horizontal part of the first part through a connecting piece. partly fixed; the ground wire of the transformer is connected to the horizontal part of said third part;

A fourth component, the fourth component includes a horizontal part and vertical parts on both sides thereof, and the vertical parts are respectively fixedly connected with the vertical parts of the second part and the third part.

According to the above box change, optionally, the box change further includes:

A lighting device, the lighting device is arranged in the first room or the second room or the third room, and the lighting device includes:

a support, the support is installed inside the door frame;

A switch, the switch is installed on the support member, and the switch has an operating part that is pushed by the door to close the switch when the door is closed, and closes the switch when the door is opened;

An illuminating lamp, the illuminating lamp is fixed on the inner wall, and the switch controls the lighting and closing of the illuminating lamp.

According to the above box-type transformer, optionally, the high-voltage switchgear includes an operation panel and a switchgear;

a closed container, the closed container is filled with insulating gas, and the switchgear is arranged in the closed container;

A linkage mechanism, the operation end of the linkage mechanism is arranged on the operation panel, and the linkage end is connected to the switchgear;

A sensor, the sensor displays the detected parameters of the insulating gas on the operation panel.

Compared with the prior art, the present invention has the following beneficial effects:

1. The insulating porcelain vases are installed at an inclination relative to the top cover, and the insulating vases are kept inclined, so that the distance between the terminals at the high-voltage access end becomes larger, and the insulation effect is improved;

2. The grounding device is set as a multi-component type, which has a longer loop and improves the grounding performance;

3. The switchgear is completely isolated from the operation panel, and the linkage mechanism is used to drive the switchgear, which improves the safety performance;

4. The switchgear is in the insulating gas, such as sulfur hexafluoride, which improves the insulation effect; the insulation distance between the switchgear is shorter, which reduces the volume of the switchgear;

5. Set the automatic lighting function. When the cabinet door is opened, the lighting lamp is automatically turned on, and when the cabinet door is closed, the lighting lamp is turned off, which helps the operator to clearly see the equipment in the cabinet, prevents misoperation, and significantly reduces safety accidents. probability.

Description of drawings

The disclosure of the present invention will become more comprehensible with reference to the accompanying drawings. Those skilled in the art can easily understand that these drawings are only used to illustrate the technical solution of the present invention, and are not intended to limit the protection scope of the present invention. In the picture:

Fig. 1 is the basic structural diagram of the novel transformer of embodiment 1 of the present invention;

Fig. 2 is the partial structural diagram of the novel transformer of embodiment 1 of the present invention;

Fig. 3 is the partial structural diagram of the novel transformer of embodiment 2 of the present invention;

Fig. 4 is a schematic structural diagram of a high-voltage switch cabinet according to Embodiment 3 of the present invention;

Fig. 5 is another schematic structural diagram of the high-voltage switchgear of Embodiment 3 of the present invention;

6 is a schematic structural diagram of a grounding device according to Embodiment 3 of the present invention;

Fig. 7 is a schematic structural diagram of an illuminating device according to Embodiment 3 of the present invention;

Fig. 8 is another schematic structural diagram of the lighting device according to Embodiment 3 of the present invention.

Detailed ways

1-8 and the following description describe alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. It should be understood by those skilled in the art that modifications or substitutions from these embodiments will be within the scope of the present invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As such, the invention is not limited to the alternative embodiments described below, but only by the claims and their equivalents.

Example 1:

Fig. 1 schematically provides the basic structural diagram of the novel transformer of the embodiment of the present invention, as shown in Fig. 1, described novel transformer comprises:

a top cover, the top cover comprising:

a horizontal portion 21, the horizontal portion is fixed on the transformer housing 11 through a second connecting piece;

The bending part 22, the bending part is arranged at the end of the horizontal part, bent downward; adjacent bending parts are connected together;

Elevated base 81, as shown in Figure 2, described elevated base is fixed on the horizontal part 21 of described top cover, and the central axis of described elevated base is perpendicular to described top cover, and the folder between end and described central axis The angle is an acute angle, and the included angle between the normals of adjacent ends is an acute angle;

Insulating porcelain bottle 41, the high-voltage access end 31 of the transformer passes through the through hole in the insulating porcelain bottle, and connects the coil; the angle is acute;

An elastic member 71, such as a rubber pad, is arranged between the insulating porcelain bottle and the raised seat, so that the insulating porcelain bottle is firmly installed on the end of the raised seat;

Fixing piece 51, said fixing piece is " L " shape, has the through hole that is suitable for connecting piece to pass through, and one end of fixing piece bears on said end, and the other end presses insulating porcelain bottle; For example, each insulating porcelain bottle is symmetrical The distribution of 6 fixing parts is fixed;

Connecting parts, such as bolt 61 and nut combination, one end of the bolt is fixed on the end, and the other end passes through the through hole on the fixing part, thereby firmly fixing the insulating porcelain bottle on the raised seat.

Example 2:

The novel transformer of the embodiment of the present invention is different from Embodiment 1 in that:

As shown in Figure 3, the angle between the central axis of the raised seat 81 and the horizontal portion 21 of the top cover is an acute angle, the raised seat 81 is inclined towards the same side of the top cover, and the distance between the end and the central axis The included angle is a right angle, and the included angle between the normal lines of adjacent ends is an acute angle; the insulating porcelain bottle 41 is fixed on the described end, inclined towards the same side of the horizontal portion of the top cover, and the included angle between adjacent insulating porcelain bottles 41 is an acute angle.

Example 3:

In the box-type substation according to the embodiment of the present invention, the box-type substation includes:

a box body, the box body includes a first chamber, a second chamber and a third chamber isolated from each other;

A high-voltage switchgear, the high-voltage switchgear is arranged in the first chamber, and the output high-voltage power is sent to the transformer for step-down (or the boosted high-voltage power output by the transformer is sent to the high-voltage switchgear); as shown in Figure 4-5 As shown, the high-voltage switchgear includes:

The switchgear and the operation panel 211 are all existing technologies in the art, and will not be described in detail here.

The closed container 251 is welded as a thick steel plate, the closed container is arranged on the rear side of the operation panel, and the inside is filled with insulating gas, such as sulfur hexafluoride, and the switchgear is arranged in the closed container;

A linkage mechanism 232, the operation end 231 of the linkage mechanism is arranged on the operation panel, and the linkage end is connected to the switchgear; the contact between the linkage mechanism and the closed container is kept sealed;

Sensors 221, 222, such as concentration and pressure sensors, which display the detected parameters of the insulating gas on the operation panel;

An operating part 261, the operating room has a wrench and a matching part matched with the operating end;

The fixing member 271 is such as a hook, the fixing member is arranged on the side of the operation panel, and the operating member is clamped on the fixing member.

Transformer, the transformer adopts the transformer in Embodiment 1 or 2 of the present invention, the base of the transformer is fixed on the mounting base, the mounting base is fixed on the skeleton at the bottom of the second chamber, and the low-voltage power output by the transformer is sent to the low-voltage Switchgear (or low-voltage power transmission transformer output from low-voltage switchgear to step up);

A low-voltage switchgear, the low-voltage switchgear is arranged in the third chamber;

The grounding device, as shown in Figure 6, the grounding device is arranged in the second chamber, including:

a first part, the first part includes a vertical part 311 and a horizontal part 312, the vertical part is fixed on the bottom of the second chamber and grounded;

a second part, said second part comprising a vertical part 321 and a horizontal part 322, part of which is mounted on the horizontal part of said first part;

The third part, the third part includes a vertical part 331 and a horizontal part 332 arranged above the horizontal part of the second part, the horizontal part is connected with the horizontal part of the second part, the first horizontal part through the connecting piece 351 The horizontal part of the part is fixed, the bottom end of the conductive connector is fixed on the bottom of the second chamber, and the periphery of the connector between the second part and the third part is covered with an insulating spacer 352, such as a ceramic material. Into a cylindrical structure; the ground wire of the transformer is connected to the horizontal part of the third part; the ground wire of the mounting base is connected to the joint of the vertical part of the second part and the fourth part; the grounding of the high-voltage switchgear and the low-voltage switchgear a line connecting the horizontal portion of the second component and the horizontal portion of the third component;

The fourth component, the fourth component includes a horizontal part 341 and vertical parts 342, 343 on both sides thereof, and the vertical parts are respectively fixedly connected with the vertical parts of the second component and the third component, such as by bolts, Nut connection;

The lighting device, as shown in Figure 7-8, the lighting device is set in the first room or the second room or the third room, including:

Supports 111-112, such as "L" shaped members, are installed inside the door frame;

A switch, the switch is installed on the support member, the switch has an operating part that is pushed by the cabinet door to close the switch when the cabinet door is closed, and closes the switch when the cabinet door is opened; the switch includes:

The mounting plate 121, the mounting plate has a through hole suitable for the operation member to pass through;

The first conductive part 151, the first conductive part is arranged on one side of the mounting board and is electrically connected to the wire;

The operating member 131 is, for example, in a “T” shape, the operating member includes an end portion, and the radius of the circumscribed circle of the end portion is greater than the inner diameter of the through hole;

The second conductive part 152, the second conductive part is arranged at the end of the operating part passing through the through hole, and is electrically connected with the wire. When the operating part moves in the through hole, the second conductive part The part is in contact with the first conductive part;

The elastic member 141 is, for example, a spring, and the elastic member is fixed on the operating member on the other side of the mounting plate.

An illuminating lamp, the illuminating lamp is fixed on the inner wall of the top of the switch cabinet and protrudes downward, and the outer side has protective strips intersecting each other; the switch controls the lighting and closing of the illuminating lamp.

Example 4:

An application example of the box-type transformer according to Embodiment 3 of the present invention.

In this application example, the high-voltage switchgear: the insulating gas uses sulfur hexafluoride, and its insulation performance is higher than that of air; the sensor uses a pressure sensor and a concentration sensor. The inside of the container is connected; the concentration sensor is an electrochemical sensor, which is set on the closed container, and the output concentration is displayed on the reading meter on the operation panel, which can be the digital display of the display or the display of the scale meter; the operating part It is in the shape of "T", the longer part is used as a wrench, and the shorter part has a matching part, which matches the operation end of the linkage mechanism on the operation panel; so that when the matching part matches the operation end, the wrench can be rotated to realize Operation of switchgear: closing or opening. The fixing part adopts a hook, and the operating part rides on the hook.

Lighting device: the support adopts an "L"-shaped member, including a vertical part and a horizontal part. The vertical part is installed on the inner wall of the vertical door frame; the mounting plate is fixed on the horizontal part; the operating part 31 is in the shape of a "T", The radius of the circumscribed circle at the end is greater than the inner diameter of the through hole on the mounting plate; the elastic part uses a spring.

The above isolation is not absolutely closed, but relative, and they are connected through cables and cooling holes.

The above-mentioned box-type transformers can be used for boosting voltage, such as photovoltaic power plants, or for reducing voltage, such as railway substations.

Claims (8)

1. a plants case becomes, the case, which becomes, includes transformer, low-tension switch cabinet, high-tension switch cabinet and casing；It is characterized in that：

The casing includes the first mutually isolated Room, second Room and the 3rd Room；

The high-tension switch cabinet is arranged on first interior, and is electrically connected with the transformer；

The low-tension switch cabinet is arranged on the 3rd interior, and is electrically connected with the transformer；

The base of the transformer is fixed in mounting seat, and the mounting seat is fixed on the skeleton of the bottom of second Room；It is described Transformer includes top cover, high pressure incoming end；The transformer also includes：

Seat is raised, the rise seat is fixed on the top cover；

Porcelain insulator, the porcelain insulator are fixed on the end of the rise seat, and high pressure incoming end passes through logical in porcelain insulator Hole, the angle between the central axis of adjacent porcelain insulator is acute angle；

Fixture, described fixture one end head on the rise seat, and the other end press against the porcelain insulator；

Connector, the connector are used to connect the fixture and top cover；

The case, which becomes, to be further comprised：

Earthing or grounding means, the earthing or grounding means include：

First component, the first component include vertical portion and horizontal component, and the vertical portion is fixed on the bottom of second Room Portion is simultaneously grounded；

Second component, the second component include vertical portion and horizontal component, and the horizontal component is partially installed on described On the horizontal component of a part；

Third member, the Part III include being arranged on the vertical portion and level above the horizontal component of the second component Part, the horizontal component are consolidated by the connector of conduction with the horizontal component of the Part II, the horizontal component of first component It is fixed；The ground wire of transformer connects the horizontal component of the third member；The mounting seat ground wire connection second component and The junction of the vertical portion of 4th part；

4th part, the 4th part include horizontal component and its both sides vertical portion, and the vertical portion is respectively with described Two parts are fixedly connected with the vertical portion of third member.

2. case according to claim 1 becomes, it is characterised in that：The fixture is L-shaped.

3. case according to claim 1 becomes, it is characterised in that：Elastic component is provided between the porcelain insulator and rise seat.

4. case according to claim 1 becomes, it is characterised in that：The fixture has to be led to suitable for what the connector passed through Hole.

5. case according to claim 1 becomes, it is characterised in that：The central axis upright of the rise seat in the top cover, Angle between end and the central axis is acute angle, and the angle between the normal of adjacent end portion is acute angle.

6. case according to claim 1 becomes, it is characterised in that：Folder between the central axis and the top cover of the rise seat Angle is acute angle, and the angle between end and the central axis is right angle, and the angle between the normal of adjacent end portion is acute angle.

7. case according to claim 1 becomes, it is characterised in that：The case, which becomes, to be further comprised：

Lighting device, the lighting device, which is arranged on first Room or second Room or the 3rd interior, the lighting device, to be included：

Support member, the support member are arranged on the inside of doorframe；

Switch, the switch are arranged on the support member, and the switch, which has, to be promoted by room door when room door is closed and make out The operating parts closed, close switch when room door is opened；

Illuminating lamp, the illuminating lamp are fixed on inwall, and the switch controls lighting, closing for the illuminating lamp.

8. case according to claim 1 becomes, it is characterised in that：The high-tension switch cabinet includes guidance panel, switchgear；

The container of closing, insulation gas filled in the container of the closing, the switchgear is arranged on the container of the closing It is interior；

Link gear, the operating side of the link gear are arranged on the guidance panel, and linkage end connects the switchgear；

Sensor, the sensor is by the parameter registration of the insulating gas detected on the guidance panel.