CN114496469A - Transformer for power transmission and transformation and installation method thereof - Google Patents

Transformer for power transmission and transformation and installation method thereof Download PDF

Info

Publication number
CN114496469A
CN114496469A CN202210093621.3A CN202210093621A CN114496469A CN 114496469 A CN114496469 A CN 114496469A CN 202210093621 A CN202210093621 A CN 202210093621A CN 114496469 A CN114496469 A CN 114496469A
Authority
CN
China
Prior art keywords
supporting seat
transformer
power transmission
transformer body
transformation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210093621.3A
Other languages
Chinese (zh)
Inventor
池海燕
岳良兵
李芷萱
尹伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Electrical Apparatus Group Co ltd Seac
Original Assignee
Sichuan Electrical Apparatus Group Co ltd Seac
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Electrical Apparatus Group Co ltd Seac filed Critical Sichuan Electrical Apparatus Group Co ltd Seac
Priority to CN202210093621.3A priority Critical patent/CN114496469A/en
Publication of CN114496469A publication Critical patent/CN114496469A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/22—Cooling by heat conduction through solid or powdered fillings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/23—Corrosion protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

The invention discloses a transformer for power transmission and transformation and an installation method thereof. The invention has the beneficial effects that: through be provided with a plurality of each other for the radiating fin who sets up perpendicularly on protective housing's outer wall, can dispel the heat to the transformer body, improve its radiating efficiency, later maintenance is got up also more conveniently, when the installation, utilize the location arch can fix a position supporting seat and installation base fast, then the fastening bolt screws, at the in-process of screwing, the protruding extrusion of location is supported the clamp plate, make to support the clamp plate and promote the sliding sleeve extrusion compression spring of both sides then, utilize compression spring's spring action, can guarantee the fastness of being connected between supporting seat and the installation base, avoid it to take place not hard up, and the length of supporting seat can be adjusted, can be according to the length of interval regulation supporting seat between two wire poles, thereby can be connected fixedly with the wire pole, it is more convenient to install.

Description

Transformer for power transmission and transformation and installation method thereof
Technical Field
The invention relates to a transformer, in particular to a transformer for power transmission and transformation and an installation method thereof, and belongs to the technical field of transformers.
Background
The transformer is widely used in local lighting, high-rise buildings, airports and wharf CNC mechanical equipment places, the dry type transformer is simply a transformer with an iron core and a winding not immersed in insulating oil, the transformer for power transmission and transformation is one of important equipment in power supply and distribution systems of industrial and mining enterprises and civil buildings, and the transformer has been widely popularized and used in various industrial fields due to excellent self-performance and characteristics, particularly the field of high-voltage frequency converters, and along with the vigorous popularization and implementation of industrial energy-saving and environment-friendly policies in China, the high-voltage frequency converter is widely used in various industrial fields due to excellent control performance and energy-saving and speed-regulating effects.
The existing transformer has some problems when in use:
1) the existing transformer mainly takes away heat for heat dissipation through the circulation flow of gas or oil by arranging an air duct or an oil duct in a transformer body, has a complex structure and high manufacturing and maintenance difficulty, and has poor insulation property and is easy to generate electricity danger;
2) when installing, current transformer is mostly fixed only through the bolt, and the mounting means is single, when the installation, can't guarantee the fastness of transformer installation moreover, when leading to the later stage use, not hard up condition can appear in the transformer.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a transformer for power transmission and transformation and a method of mounting the same.
The invention realizes the purpose through the following technical scheme: a transformer for power transmission and transformation comprises
The transformer comprises a transformer body, a connecting seat is fixedly arranged at the upper end of the transformer body, a binding post is fixedly arranged at the upper end of the connecting seat, a protective shell is fixedly arranged at the outer side of the transformer body, and a mounting base is fixedly connected at the lower end of the transformer body;
the supporting seat is arranged on the lower side of the mounting base, fastening bolts are arranged in the supporting seat, and the supporting seat and the mounting base are fixedly connected through a plurality of fastening bolts;
the anti-loosening mechanism is fixedly arranged inside the lower side of the mounting base, and the firmness of connection between the supporting seat and the mounting base can be ensured by arranging the anti-loosening mechanism;
the fixing heads are arranged at the end parts of the two sides of the supporting seat, and the transformer body and the telegraph pole are conveniently fixed by the aid of the fixing heads.
As a still further scheme of the invention: and a plurality of radiating fins which are vertically arranged are arranged on the outer wall of the protective shell.
As a still further scheme of the invention: and the outer wall of the protective shell is coated with an insulating waterproof coating.
As a still further scheme of the invention: locking not hard up mechanism is by setting up the inside mounting groove of installation base downside constitutes with supporting the clamp plate, the inside rigid coupling of mounting groove has the slide bar, the sliding sleeve has been cup jointed, two on the both sides pole body of slide bar the sliding sleeve is provided with the compression spring who cup joints on the slide bar between the side of separating mutually and the mounting groove inner wall of sliding sleeve, and two the downside of sliding sleeve all articulates there is the connecting rod, two the lower extreme of connecting rod all articulates through the articulated shaft has supports the clamp plate, the side surface of going up of supporting seat is provided with the location arch with mounting groove matched with.
As a still further scheme of the invention: the fixing head is composed of two semicircular clamping blocks with the same structure, connecting plates are fixedly connected to the side walls of the two sides of each semicircular clamping block, and two adjacent connecting plates are connected through a long rod bolt.
As a still further scheme of the invention: the inside shifting chute that all is provided with in both ends of supporting seat, and the inside slip of shifting chute is provided with the expansion plate, the inside spacing groove that is provided with of upside lateral wall of expansion plate, be provided with adjusting bolt on the outer wall of supporting seat, adjusting bolt's lower extreme extends to the inside of shifting chute to it is connected with spacing briquetting to rotate at its tip.
As a still further scheme of the invention: the inside spacing spout that is provided with of downside of shifting chute, the inside sliding connection of spacing spout has the stopper, and the upper end of stopper with the downside lateral wall rigid coupling of expansion plate.
The installation method comprises the following steps:
a. firstly, adjusting the length of the supporting seat according to the distance between the two telegraph poles, firstly loosening the adjusting bolt, then drawing the telescopic plate to move in the moving groove, and after the length is adjusted, reversing the adjusting bolt to enable the limiting pressing block to abut against the limiting groove again, so that the telescopic plate is fixed;
b. then the supporting seat is fixed between the telegraph poles through the fixing heads;
c. then, hoisting the transformer body by using a hoisting machine, placing the transformer body on the upper side of the supporting seat, quickly positioning the transformer body through a mounting groove arranged on the lower side of the mounting base and a positioning bulge arranged on the upper side of the supporting seat, and then screwing a fastening bolt;
d. at the in-process of screwing, the protruding extrusion of location is supported the clamp plate for support the clamp plate and promote the sliding sleeve extrusion compression spring of both sides then, utilize compression spring's elastic force effect, can guarantee the fastness of being connected between supporting seat and the installation base, avoid it to take place not hard up.
The invention has the beneficial effects that:
1) the transformer body can be radiated by arranging the plurality of radiating fins which are vertically arranged on the outer wall of the protective shell, so that the radiating efficiency of the transformer body is improved, the structure is simple, the later maintenance is more convenient, and the insulating waterproof coating is coated on the outer wall of the protective shell, so that the use safety of the transformer can be improved;
2) according to the invention, through the arrangement of the anti-loosening mechanism, when the anti-loosening mechanism is installed, the supporting seat and the installation base can be quickly positioned by utilizing the positioning bulge, then the fastening bolt is screwed, in the screwing process, the pressing plate is extruded by the positioning bulge, so that the pressing plate pushes the sliding sleeves at two sides to extrude the compression spring, and the firmness of connection between the supporting seat and the installation base can be ensured by utilizing the elastic action of the compression spring, the looseness of the supporting seat is avoided, the length of the supporting seat can be adjusted according to the distance between two telegraph poles, so that the supporting seat can be connected and fixed with the telegraph poles, and the installation is more convenient.
Drawings
FIG. 1 is a schematic diagram of a transformer installation front view structure according to the present invention;
FIG. 2 is a schematic diagram of a cross-sectional structure of the transformer of the present invention;
FIG. 3 is a schematic top view of the fixing head connection of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
fig. 5 is an enlarged schematic view of B in fig. 2.
In the figure: 1. the transformer body, 2, the connecting seat, 3, the terminal, 4, protective housing, 5, radiating fin, 6, the installation base, 7, the installation base, 8, fastening bolt, 9, the fixed head, 10, the mounting groove, 11, the slide bar, 12, the sliding sleeve, 13, compression spring, 14, the connecting rod, 15, the pressure plate, 16, semi-circular clamp splice, 17, the connecting plate, 18, the stock bolt, 19, the shifting chute, 20, the expansion plate, 21, spacing spout, 22, the stopper, 23, the spacing groove, 24, adjusting bolt, 25, spacing briquetting.
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.
Example one
Referring to fig. 1 to 5, a transformer for power transmission and transformation includes
The transformer comprises a transformer body 1, wherein the upper end of the transformer body is fixedly provided with a connecting seat 2, the upper end of the connecting seat 2 is fixedly provided with a binding post 3, the outer side of the transformer body is fixedly provided with a protective shell 4, and the lower end of the transformer body is fixedly connected with an installation base 6;
the supporting seat 7 is arranged on the lower side of the mounting base 6, a fastening bolt 8 is arranged in the supporting seat 7, and the supporting seat 7 and the mounting base 6 are fixedly connected through a plurality of fastening bolts 8;
the anti-loosening mechanism is fixedly arranged inside the lower side of the mounting base 6, and the firmness of connection between the supporting seat 7 and the mounting base 6 can be ensured by arranging the anti-loosening mechanism;
the fixing heads 9 are arranged at the end parts of the two sides of the supporting seat 7, and the transformer body 1 and the telegraph pole are conveniently fixed by arranging the fixing heads 9.
In the embodiment of the present invention, the outer wall of the protective housing 4 is provided with a plurality of heat dissipation fins 5 that are perpendicular to each other, so as to dissipate heat from the transformer body 1, thereby improving the heat dissipation efficiency.
In the embodiment of the invention, the outer wall of the protective shell 4 is coated with the insulating waterproof coating, so that the use safety of the transformer can be improved.
Example two
Referring to fig. 1 to 5, a transformer for power transmission and transformation includes
The transformer comprises a transformer body 1, wherein the upper end of the transformer body is fixedly provided with a connecting seat 2, the upper end of the connecting seat 2 is fixedly provided with a binding post 3, the outer side of the transformer body is fixedly provided with a protective shell 4, and the lower end of the transformer body is fixedly connected with an installation base 6;
the supporting seat 7 is arranged on the lower side of the mounting base 6, a fastening bolt 8 is arranged in the supporting seat 7, and the supporting seat 7 and the mounting base 6 are fixedly connected through a plurality of fastening bolts 8;
the anti-loosening mechanism is fixedly arranged inside the lower side of the mounting base 6, and the firmness of connection between the supporting seat 7 and the mounting base 6 can be ensured by arranging the anti-loosening mechanism;
the fixing heads 9 are arranged at the end parts of the two sides of the supporting seat 7, and the transformer body 1 and the telegraph pole are conveniently fixed by arranging the fixing heads 9.
In the embodiment of the invention, the anti-loosening mechanism is composed of a mounting groove 10 and a pressing plate 15 which are arranged inside the lower side of the mounting base 6, a sliding rod 11 is fixedly connected inside the mounting groove 10, sliding sleeves 12 are sleeved on the rods on the two sides of the sliding rod 11, a compression spring 13 sleeved on the sliding rod 11 is arranged between the separated side of the two sliding sleeves 12 and the inner wall of the mounting groove 11, the lower sides of the two sliding sleeves 12 are hinged with connecting rods 14, the lower ends of the two connecting rods 14 are hinged with the pressing plate 15 through hinged shafts, a positioning bulge matched with the mounting groove 11 is arranged on the upper side surface of the supporting seat 7, when the anti-loosening mechanism is installed, the supporting seat 7 and the mounting base 6 can be quickly positioned by using the positioning bulge, then the fastening bolt 8 is screwed, and in the screwing process, the positioning bulge presses the pressing plate 15, so that the pressing plate 15 pushes the sliding sleeves 12 on the two sides to press the compression spring 13, the firmness of connection between the supporting seat 7 and the mounting base 6 can be ensured by utilizing the elastic force of the compression spring 13, and the looseness of the connection is avoided.
In the embodiment of the invention, the fixing head 9 is composed of two semicircular clamping blocks 16 with the same structure, the side walls of the two sides of the two semicircular clamping blocks 16 are fixedly connected with connecting plates 17, the two adjacent connecting plates 17 are connected through long-rod bolts 18, so that the support base 7 can be conveniently connected with a telegraph pole, and the two semicircular clamping blocks 16 which are separated from each other are arranged, so that the telegraph pole can adapt to telegraph poles with different diameters, and the service life of the telegraph pole is prolonged.
In the embodiment of the invention, the inside of each of the two ends of the support base 7 is provided with a moving groove 19, the inside of each moving groove 19 is slidably provided with a telescopic plate 20, the inside of the upper side wall of each telescopic plate 20 is provided with a limiting groove 23, the outer wall of the support base 7 is provided with an adjusting bolt 24, the lower end of each adjusting bolt 24 extends into the inside of the corresponding moving groove 19, and the end part of each adjusting bolt is rotatably connected with a limiting pressing block 25, so that the length of the support base 7 can be adjusted according to the distance between two telegraph poles, and the support base can be connected and fixed with the telegraph poles, and is more convenient to install.
In the embodiment of the present invention, a limiting sliding groove 21 is disposed inside the lower side of the moving groove 19, a limiting block 22 is slidably connected inside the limiting sliding groove 21, and the upper end of the limiting block 22 is fixedly connected to the lower side wall of the expansion plate 20, so that the moving position of the expansion plate 20 can be limited, the expansion plate is prevented from moving out of the supporting seat 7, and the stability of length adjustment of the expansion plate 20 is ensured.
EXAMPLE III
A transformer for power transmission and transformation comprises the following installation methods:
a. firstly, adjusting the length of the supporting seat 7 according to the distance between the two telegraph poles, firstly loosening the adjusting bolt 24, then drawing the expansion plate 20 to move in the moving groove 19, and after the length is adjusted, reversing the adjusting bolt 24 to enable the limiting pressing block 25 to abut against the limiting groove 23 again, so that the expansion plate 20 is fixed;
b. then the supporting seat 7 is fixed between the telegraph poles through the fixing heads 9;
c. then, hoisting the transformer body 1 by using a hoisting machine, placing the transformer body on the upper side of the supporting seat 7, quickly positioning the transformer body through the installation groove 10 arranged on the lower side of the installation base 6 and the positioning bulge arranged on the upper side of the supporting seat 7, and screwing the fastening bolt 8;
h. at the in-process of screwing, protruding extrusion of location supports clamp plate 15 for support clamp plate 15 and promote the sliding sleeve 12 extrusion compression spring 13 of both sides then, utilize compression spring 13's elastic force effect, can guarantee the fastness of being connected between supporting seat 7 and the installation base 6, avoid it to take place not hard up.
The working principle is as follows: when the transformer for power transmission and transformation and the installation method thereof are used, firstly, the adjusting bolt 24 is unscrewed, then the expansion plate 20 is drawn to move in the moving groove 19, and after the length is adjusted, the adjusting bolt 24 is reversed, so that the limiting pressing block 25 is abutted against the limiting groove 23 again, and the expansion plate 20 is fixed; then, the transformer body 1 is lifted and placed on the upper side of the supporting seat 7, the installation groove 10 arranged on the lower side of the installation base 6 and the positioning bulge arranged on the upper side of the supporting seat 7 are used for quickly positioning, and then the fastening bolt 8 is screwed.
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 (8)

1. A transformer for power transmission and transformation is characterized by comprising
The transformer comprises a transformer body (1), wherein the upper end of the transformer body is fixedly provided with a connecting seat (2), the upper end of the connecting seat (2) is fixedly provided with a binding post (3), the outer side of the transformer body is fixedly provided with a protective shell (4), and the lower end of the transformer body is fixedly connected with an installation base (6);
the supporting seat (7) is arranged on the lower side of the mounting base (6), a fastening bolt (8) is arranged in the supporting seat (7), and the supporting seat (7) and the mounting base (6) are fixedly connected through a plurality of fastening bolts (8);
the anti-loosening mechanism is fixedly arranged inside the lower side of the mounting base (6), and the firmness of connection between the supporting seat (7) and the mounting base (6) can be ensured by arranging the anti-loosening mechanism;
the fixing heads (9) are arranged at the end parts of the two sides of the supporting seat (7), and the transformer body (1) and the telegraph pole are conveniently fixed by arranging the fixing heads (9).
2. The power transmission and transformation transformer according to claim 1, wherein: the outer wall of the protective shell (4) is provided with a plurality of radiating fins (5) which are vertically arranged.
3. The transformer for power transmission and transformation according to claim 1, wherein: and the outer wall of the protective shell (4) is coated with an insulating waterproof coating.
4. The transformer for power transmission and transformation according to claim 1, wherein: locking mechanism is by setting up installation base (6) downside inside mounting groove (10) and support clamp plate (15) and constitute, the inside rigid coupling of mounting groove (10) has slide bar (11), sliding sleeve (12), two have been cup jointed on the both sides pole body of slide bar (11) the compression spring (13) of cup jointing on slide bar (11) are provided with between the side of separating mutually of sliding sleeve (12) and mounting groove (11) inner wall, and two the downside of sliding sleeve (12) all articulates there is connecting rod (14), two the lower extreme of connecting rod (14) all articulates through the articulated shaft has supports clamp plate (15), the side surface of going up of supporting seat (7) is provided with the location arch with mounting groove (11) matched with.
5. The transformer for power transmission and transformation according to claim 1, wherein: the fixing head (9) is composed of two semicircular clamping blocks (16) with the same structure, connecting plates (17) are fixedly connected to the side walls of the two sides of each semicircular clamping block (16), and two adjacent connecting plates (17) are connected through long rod bolts (18).
6. The transformer for power transmission and transformation according to claim 1, wherein: the inside shifting chute (19) that all is provided with in both ends of supporting seat (7), and the inside slip of shifting chute (19) is provided with expansion plate (20), the upside lateral wall inside of expansion plate (20) is provided with spacing groove (23), be provided with adjusting bolt (24) on the outer wall of supporting seat (7), the lower extreme of adjusting bolt (24) extends to the inside of shifting chute (19) to it is connected with spacing briquetting (25) to rotate at its tip.
7. The transformer for power transmission and transformation according to claim 6, wherein: the inside spacing spout (21) that is provided with of downside of shifting chute (19), the inside sliding connection of spacing spout (21) has stopper (22), and the upper end of stopper (22) with the downside lateral wall rigid coupling of expansion plate (20).
8. A method for mounting a transformer for power transmission and transformation according to claim 1, wherein: the installation method comprises the following steps:
a. firstly, adjusting the length of the supporting seat (7) according to the distance between the two telegraph poles, firstly loosening the adjusting bolt (24), then drawing the telescopic plate (20) to move in the moving groove (19), and after the length is adjusted, reversing the adjusting bolt (24) to enable the limiting pressing block (25) to be propped against the limiting groove (23) again, so that the telescopic plate (20) is fixed;
b. then the supporting seat (7) is fixed between the telegraph poles through the fixing head (9);
c. then, a hoisting machine is used for hoisting the transformer body (1), the transformer body is placed on the upper side of the supporting seat (7), the mounting groove (10) arranged on the lower side of the mounting base (6) and the positioning bulge arranged on the upper side of the supporting seat (7) are used for quickly positioning, and then the fastening bolt (8) is screwed;
d. at the in-process of screwing, protruding extrusion of location supports clamp plate (15) for supporting clamp plate (15) and promoting sliding sleeve (12) extrusion compression spring (13) of both sides then, utilize compression spring (13)'s elastic force effect, can guarantee the fastness of being connected between supporting seat (7) and installation base (6), avoid it to take place not hard up.
CN202210093621.3A 2022-01-26 2022-01-26 Transformer for power transmission and transformation and installation method thereof Pending CN114496469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210093621.3A CN114496469A (en) 2022-01-26 2022-01-26 Transformer for power transmission and transformation and installation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210093621.3A CN114496469A (en) 2022-01-26 2022-01-26 Transformer for power transmission and transformation and installation method thereof

Publications (1)

Publication Number Publication Date
CN114496469A true CN114496469A (en) 2022-05-13

Family

ID=81473972

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210093621.3A Pending CN114496469A (en) 2022-01-26 2022-01-26 Transformer for power transmission and transformation and installation method thereof

Country Status (1)

Country Link
CN (1) CN114496469A (en)

Similar Documents

Publication Publication Date Title
CN114496469A (en) Transformer for power transmission and transformation and installation method thereof
CN115631921A (en) Oil-immersed distribution transformer
CN214384807U (en) Power distribution cabinet for water, electricity and gas transmission
CN212435302U (en) Dual thermal-insulated bus duct
CN113192732A (en) Transformer fixing structure
CN219420230U (en) Bus duct convenient to hoist
CN112467560A (en) Outdoor high-voltage switch cabinet system of power distribution network
CN207753413U (en) A kind of fireproof bus duct expansion joint busbar
CN218329405U (en) Fin wound copper heat pipe
CN112531514A (en) Low-voltage power distribution energy-saving device and control method thereof
CN219202909U (en) Dry-type transformer with good heat dissipation performance
CN220821240U (en) Outlet structure for frequency converter
CN215870671U (en) A easily assemble bus duct for switch board
CN215377133U (en) High-insulativity oil-immersed power transformer utilizing vacuum oil injection process
CN220041546U (en) Heat abstractor for prevent scraping garland deformation transformer core insulating layer
CN214897918U (en) Small-size lightweight resin insulation dry-type transformer
CN210182195U (en) High-efficient heat radiation structure of dry-type transformer
CN217507051U (en) Amorphous alloy distribution transformer with noise reduction function
CN218732208U (en) Battery pack connecting cable convenient to connect
CN215265828U (en) Transformer fixing structure
CN210517343U (en) Adjustable bus duct fixing box
CN213125510U (en) High-efficient heat dissipation bus duct
CN218849216U (en) Transformer
CN216772987U (en) Small-sized centralized high-frequency switch transformer
CN218216135U (en) Fixing device of distribution network equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination