KR101554855B1 - Apparatus for fixing transformer of electric power transformation - Google Patents

Apparatus for fixing transformer of electric power transformation Download PDF

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Publication number
KR101554855B1
KR101554855B1 KR1020150104494A KR20150104494A KR101554855B1 KR 101554855 B1 KR101554855 B1 KR 101554855B1 KR 1020150104494 A KR1020150104494 A KR 1020150104494A KR 20150104494 A KR20150104494 A KR 20150104494A KR 101554855 B1 KR101554855 B1 KR 101554855B1
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KR
South Korea
Prior art keywords
dovetail
transformer
coupling piece
welded
piece
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KR1020150104494A
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Korean (ko)
Inventor
이선주
Original Assignee
(주)이림엔지니어링
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Priority to KR1020150104494A priority Critical patent/KR101554855B1/en
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Publication of KR101554855B1 publication Critical patent/KR101554855B1/en

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    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together

Abstract

A welded piece welded to a transformer tank and a dovetail type female coupling piece welded to a welded piece and a fixed plate are covered with an insulating coating layer so that the welded portion is not exposed to the outside It is possible to prevent the transformer from falling due to leakage of the welded part because it is protected by the insulation coating layer. It is possible to prevent the transformer from falling down due to the leakage of the welding part, and the plane of the dovetail type male coupling part and dovetail type male coupling piece dovetail type groove part and dovetail type Shaped groove portion and the dovetail-like convex portion are formed to be narrower than the upper end-side cross-sectional area of the dovetail-shaped groove portion and the dovetail-like projected portion, so that the dovetail- So that the dovetail type female coupling piece and the dovetail type coupling piece are firmly connected to each other, And, by passing through the fixing bolt in the fixing plate welded on the dovetail-shaped arm, because the fitting piece for fastening to the dovetail-shaped coupling pieces may be one to maintain the engaged state more secure.

Description

[0001] The present invention relates to an apparatus for fixing a transformer,

The present invention relates to a fixing device for a transformer transformer, and more particularly, a welding part of a member welded to a transformer tank is protected by an insulating coating layer without being exposed to wind, thereby preventing a transformer from falling due to leakage And the components for fixing the transformer to the mains of the vehicle include a dovetail-type male coupling piece and a dovetail-type female coupling piece, and the dovetail-type male coupling piece and the dovetail- And the bolt passing through the fixing plate coupled to the upper end of the dovetail type female coupling member is fastened to the upper surface of the dovetail type male coupling piece with the fixing bolt to constrain the upward flow of the transformer And more particularly, to a fixing device for a transformer for a transformer, which can securely and securely fix the transformer.

Generally, a high voltage transformer for electric power is constituted in a power system, and receives a voltage from a power plant and plays an important role in transmitting power to a customer through a boost and a depressurization.

(22.9kV) transmission lines and commercial voltage (230V, 380V) distribution lines are installed in an insulated state.

In the telephone pole, a transformer is provided for supplying the commercial voltage distribution line with the current of the extra-high voltage transmission line down to a commercial voltage.

Conventionally, when fixing the transformer on the mains, a method of fixing the transformer to the mains by fixing the band on the main body and connecting the coupling and the band with bolts and nuts is widely used .

However, in the conventional method of fixing the transformer, the connecting piece is fixed to the outer circumferential surface of the transformer tank by welding, and the painting is performed by using a rust preventive paint after welding. However, The rust of the rust is gradually diffused and the portion becomes vulnerable to the pressure. In the worst case, the insulation oil leaks due to the puncture, and the rainwater penetrates into the tank, resulting in the risk of insulation breakdown. There was a problem.

In order to fix the transformer to the mains, the connecting piece welded to the outer circumference of the transformer tank and the connecting piece fixed with the band and the bolt / nut are fixed to the electric wire with bolts / nuts. Since the fixed state of the transformer is not stable, Therefore, when a strong wind is blown, a transformer may fall off while flowing, resulting in an accident. In addition, there is a problem that a secondary accident is caused such as accidents or accidents due to a fall of a transformer.

As a prior art for solving such a problem, Korean Patent Registration No. 10-071524 (registered on April 30, 2007) entitled " Connection Fixing Structure of a Telephone Cable Band and Column-Type Transformer "(hereinafter referred to as Prior Art 1) And the anchor bolts are horizontally protruded from the central portion of the hanger band at the center portion of the hanger band; A hanger bracket having an anchor vertical bar having an anchor bolt corresponding to an anchor bolt of the hanger band and extending vertically from upper and lower sides of the anchor vertical bar and having a fastening bolt portion protruded at each end; A pair of upper and lower straps having a plane shape of Ω and having fastening holes for receiving upper and lower anchor horizontal bolt fastening bolts of the hanger bracket at both ends thereof and fastened and fixed by a fastening nut, And an upper and a lower transformer mounting base on which a fixing plate on which a pillar transformer is mounted is integrally formed on an inner side of a lower portion thereof, so that when the pillar transformer is installed on the front of the distribution line, The transformer is prevented from falling off or falling from the pole due to an external impact, thereby preventing a major accident such as a safety accident or a fire accident from occurring.

As another prior art, a "Fixing device for connection between a mains band and a pillar-type transformer" (hereinafter referred to as "Prior Art 2") installed on the upper side of a telephone pole A receiving groove having a first concave-convex portion, a pair of connecting bolts, and a slip prevention pad for preventing slippage from being slid at an upper end of the main body is integrally formed, and a latching bar is seated on an upper end of the main body to protrude A pair of supporting bars divided into a plurality of connecting pieces having a plurality of connecting grooves so that the pillar transformer can be seated therebetween, and a second connecting piece having a plurality of connecting holes so that the fixing bolts can be fastened, A pair of bolt portions which are inserted into the mounting holes of the lightening bolt and are fastened to the ends of the bolts and the stepped portions on which the lightening bolts are seated, One pairs of old installation frame connection hole is provided in which; A stopper comprising a first connection port provided on one side of each opening of the connection hole and having a connection groove and a second connection port having a fixing pin projecting toward the first connection port by an elastic force of the elastic spring and inserted into and connected to the connection groove; And a second concave-convex portion which is engaged with the first concave-convex portion at the upper portion and is fixed to the installation frame at the other side of the upper end of the main body through a nut which is fixed to the connection bolt by varying the distance from the installation frame according to the diameter of the electric- And a mounting bar having a guide groove into which the pair of connection bolts are inserted is protruded and seated on the latch bar, and a first seat having a plurality of mounting grooves at a lower portion thereof and a plurality of mounting holes And a pair of mounting bars on which the pillar transformer is mounted are formed symmetrically with respect to each other and a pair of through holes opened to both sides of the connecting frame are provided; A main body band having a plurality of pinholes inserted into and connected to the respective through holes and the respective connection holes so as to be able to be fixed to the upper end of the main body by pressing the installation frame and the connection frame, And a pair of rubber bands for pressing and surrounding the pillar transformer so as to fix the pillar transformer mounted on the upper portion of the installation bar are provided with mounting holes at both ends of each rubber band, And a pair of pillar-type transformer fixtures, each of which has a bolt-fastened connection pin to be fastened to the fastening groove and the installation groove, at each end of each fastening bolt, so that the installation of a plurality of transformers and light- So that it is possible to improve the ease of installation, the stability of the construction, and the safety in use. have.

The above prior art can solve the problems in the prior art by allowing the transformer to be fixed to the mains of the transformer without welding the coupling piece to the outer circumferential surface of the transformer tank as in the prior art. However, in the prior art 1, In addition, the upper and lower pairs of transformer support bases support the outer circumferential surface of the transformer. The downward flow of the transformer is restrained by the fixing plate and the transformer seat is restrained with respect to the horizontal flow of the transformer. However, There is a fear that the transformer will flow downward from the electric pole when strong external force is applied due to strong wind or earthquake or the like because the transformer is configured to restrain the upward flow of the transformer by the tightening force of the transformer seat, 2 is a transformer The support bar restrains the downward flow of the transformer and the rubber band and the connection pin constrain the flow of the transformer in the horizontal direction, Since there is no component for restricting the upward flow and the upward flow of the transformer is constrained by the tightening force of the connecting pin and the rubber band, when a strong external force is applied due to strong wind or earthquake, the transformer flows upward, There is a fear that the user may be disconnected.

In the prior art 1, the transformer is seated on the fixing plate, and the prior art 2 is seated on the support bar. In the telephone pole where the transformer is installed, a plurality of bars are provided for supporting the working transmission line and the processing power distribution line as well as the transformer. In addition, since the fixing plate and the supporting bar for seating the transformer must be installed on the telephone pole, the structure installed on the telephone pole becomes too much and complicated, and consequently, the beauty of the city is deteriorated.

Therefore, it is required to develop a technique for solving the problem on the welded part, having a structure capable of restricting the downward flow and the horizontal flow as well as the upward flow of the transformer, and making the process of installing the transformer simpler and easier have.

Korean Registered Patent No. 10-071524 (Registered on Mar. 30, 2007) "Fixed connection structure between pole and pole transformer" Registered Utility Model No. 20-0444666 (Registered on May 21, 2009. Registered) "Fixing device for connection of pole and pole transformer"

Accordingly, an object of the present invention is to provide a welding apparatus and a welding method in which welding parts welded to a transformer tank, dovetail type arm coupling pieces welded to welding pieces, and fixing plates are covered with an insulating coating layer, So as to prevent the falling of the transformer due to leak of the transformer.

Another object of the present invention is to provide a dovetail type female coupling piece, a dovetail type engagement portion, a dovetail type groove portion and a dovetail type projecting portion, wherein the plane of the dovetail type projecting portion is formed as an inclined face, Shaped groove portion is formed to be narrower than a transverse sectional area of an upper end of the groove portion and the dovetail-shaped projecting portion, a wedge action is generated in the process of inserting the dovetail-type groove portion into the dovetail- And to provide a fixing device for a transformer for transforming the transformer which is firmly coupled to the transformer.

It is still another object of the present invention to provide a fixing device for a transformer for transformer which is able to more securely maintain the coupled state by fastening a fixing bolt to a fixing plate welded to a dovetail type female coupling piece and tightening the fixing bolt to a dovetail type male coupling piece will be.

According to an aspect of the present invention, there is provided a welding machine comprising: a welding part welded to an outer circumferential surface of a tank of a transformer and having a large surface toward a main body of the transformer; a welding part welded to a large surface of the welding part body, An insulating cover layer coated on an outer circumferential surface of the tank and on a surface of the welding piece and a dovetail type female engaging piece; and a fixing device for fixing the electric pole attached to the outer circumferential half of the electric wire on the transformer side, A pair of front and rear pole fastening bands which are in close contact with the outer circumferential half of the main body at opposite sides of the transformer and a pair of dovetail type male coupling pieces welded to the pole fixing band and corresponding to the dovetail type female coupling pieces, And fixing means for fixing the dovetail type female coupling piece and the dovetail type male coupling piece,

Wherein the welding member is composed of a welded member body bent in a U-shape in an iron plate and welding blades extending and bent at both ends of the welded member body, the welding blade being fixedly welded to the outer peripheral surface of the transformer tank,

Wherein the dovetail type female coupling piece has a joint surface which is in close contact with a wide surface of the welded piece body and includes a front and rear side inclined surface and a dovetail type recess formed by a plane connecting the inclined surfaces,

The dowtail-type male coupling piece has a joint surface joined to the middle portion of the pole fixing band by welding, a front and rear side slopes corresponding to the front and rear side slope surfaces of the dovetail type arm engagement piece, And a tail-shaped projection portion,

The dovetail type female coupling dovetail type groove portion and the dovetail type male coupling piece dovetail type projecting portion are formed as inclined surfaces in which the lower end of the plane is retracted toward the main body when viewed from the front side so that the dovetail type groove portion and the dovetail type portion And the bottom cross-sectional area is narrower than the upper cross-sectional area of the protrusion, so that when the dovetail-type protrusion is inserted into the dovetail-shaped groove, the protrusion can be firmly coupled by the wedge action,

The fixing means includes a fixing plate welded to the upper surface of the welding piece and the dovetail type arm coupling member and a fixing bolt penetrating the fixing plate and fastened to the upper surface of the dovetail type coupling member,

And the insulating coating layer covers the outer peripheral surface of the welding piece, the dovetail type female coupling piece, the fixed plate, and the transformer tank.

According to the fixing device for transformer of the present invention, since the welded part welded to the transformer tank and the dovetail type female coupling piece welded to the welded piece and the fixed plate are covered by the insulating coating layer, It is possible to prevent a fall of the transformer due to leak at the welded portion because it is protected by the coating layer.

In addition, according to the fixing apparatus for a transformer of the present invention, when the plane of the dovetail type female coupling piece, the dovetail type groove portion and the dovetail type convex portion is in a plan view from the front, Shaped groove portion and the dovetail-like projected portion are formed to be narrower than the upper end cross-sectional area of the dovetail-shaped groove portion, the wedge action takes place in the process of inserting the dovetail- The tail type female coupling piece and the dovetail type male coupling piece are firmly coupled.

In addition, according to the fixing apparatus for a transformer of the present invention, since the fastening bolt is fastened to the fastening plate welded to the dovetail type female coupling piece and fastened to the dovetail type male coupling piece, the fastening state can be maintained more securely.

1 to 6 show a preferred embodiment of a fixing device for transformer for transformer according to the present invention,
1 is a perspective view showing a state where a transformer is fixed to a telephone pole according to the present invention,
Fig. 2 is a perspective view showing a state in which the transformer is removed from the mains,
FIG. 3 is a perspective view showing a state in which a dovetail-type male coupling piece fixed to a telephone pole is disassembled;
4 is an exploded perspective view,
5 is a cross-sectional view showing a state where a transformer is fixed to a telephone pole,
Fig. 6 is an enlarged longitudinal elevation view showing a state in which a transformer is fixed to a telephone pole. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a fixing device of a transformer for a transformer according to the present invention will be described in detail with reference to the accompanying drawings.

The fixing device for transformer according to the present embodiment includes a welding piece 100 welded to an outer circumferential surface of a tank 11 of a transformer 10 and having a large surface 110 toward the main pole 20, A dovetail type female coupling piece 200 welded to a large surface 111 of the main body 110 and having a dovetail type coupling groove 210 opened at upper and lower portions and in the direction of a telephone main body 20, And an insulating coating layer 300 coated on the outer circumferential surface of the yoke 11 and the surface of the welding piece 100 and the dovetail type female coupling piece 200. The insulating coating layer 300 is in close contact with the outer circumferential surface of the transformer 10, A pair of front and rear pole fastening bands 500 which are in close contact with the outer circumferential half of the pole 20 at the opposite side of the transformer 10 and a pair of front and rear pole fastening bands 500 welded to the pole fixing bands 400 A dovetail type male coupling piece 600 corresponding to the dovetail type female coupling piece 200, and a dovetail type female coupling piece 20 And a fixing means 700 for fixing the dovetail-type male coupling piece 600. [

The transformer 10 includes a transformer tank 11 and a tank cover 12 which is covered at the upper portion of the transformer tank 11. A bushing (14) for high pressure is connected to the tank lid (12), and a low pressure bushing (14) is connected to one side of a peripheral wall of the transformer tank .

The welding member 100 includes a welding member body 110 bent in a U shape and a welding blade 120 extending and bent at both ends of the welding member body 110 so that the welding blade 120 Is welded to the outer circumferential surface of the transformer tank 11 to fix it.

The dovetail type female coupling piece 200 has a joint surface 210 that is in close contact with a wide surface 111 of the welded piece body 110 and has a front and rear side inclined surface 221 and an inclined surface 221 Shaped groove portion 220 formed by a plane 222 which is formed by a flat surface.

The insulating coating layer 300 covers the outer circumferential surfaces of the welding piece 100 and the dovetail type female coupling piece 200 and the transformer tank 11 and is provided between the outer peripheral surface of the transformer tank 11 and the welding piece 100. [ The welding part and the welding part between the welding part 100 and the dovetail type coupling part 200 are all covered so as not to be exposed to the wind.

The insulating coating layer 300 may be made of an acrylic resin having high electrical insulating properties and excellent weather resistance such as sunlight and weather resistance, and synthetic resin having excellent electrical insulation and weather resistance.

The telescopic fixing band 400 is formed in a semicircular arc shape, and a bending connection part 410 is formed at both ends.

The telescopic tightening band 500 is formed in a ¼ arcuate shape and bending connection portions 510 and 520 are formed at both ends.

The bending connection part 410 formed at both ends of the main body fixing band 400 faces the bending connection part 510 formed at one end of the main body fixing band 500 and the connection bolt 420 is attached to the bending connection parts 410 and 510 The pair of pole fastening bands 500 face the bending connection part 520 formed at the other end and the fastening bolt 530 is inserted into the bending connection part 520 through the fastening bolt 530 The fastening nut 540 can be tightened by tightening the fastening nut 540. It is possible to use a band used for attaching an attachment to a conventional electric wire.

Reference numerals 411, 511, and 521 denote bolt through holes through which the connection bolts 420 and the tightening bolts 530 pass.

The dovetail type male coupling piece 600 has a joint surface 610 to be welded to an intermediate portion of the pole fixing band 400 and a front surface side slope surface 221 of the dovetail type female coupling piece 200 And a dovetail-shaped protruding portion 620 formed by the front and rear side inclined surfaces 621 and the planar surfaces 622 corresponding to the plane 222. As shown in Fig.

The dovetail-type male coupling piece 200 and the dovetail-type male coupling piece 600 of the dovetail-type male coupling piece 600 have a flat surface (see FIG. Shaped groove portion 220 and the dovetail-shaped protruding portion 620 are formed to be narrower than the upper end-side cross-sectional area of the dovetail-shaped protruding portion 620, It is preferable that the dovetail-shaped protrusion 620 is firmly coupled by the action of the wedge when the dovetail-shaped protrusion 620 is inserted into the protrusion 220.

The fixing means 700 includes a fixing plate 710 welded to the upper surface of the welding piece 100 and the dovetail type female coupling piece 200 and a fixing plate 710 penetrating the fixing plate 710, And a fixing bolt 720 fastened to the upper surface of the base plate 600.

The fixing plate 710 is covered with the insulating coating layer 300 including the fixing plate 710 constituting the fixing means 700. [ That is, the insulating coating layer 300 is formed by welding the welding piece 100 to the transformer tank 11, welding the dovetail type female coupling piece 200 to the welding piece 100, The fixing plate 710 is welded to the upper surface of the dovetail type female coupling piece 200 and then covered. The fixing bolt 720 penetrates through the fixing plate 710 and passes through the insulating coating layer 300 covering the fixing plate 710.

In the drawing, reference numerals 711 and 712 denote bolt through holes through which the fixing bolts 720 penetrate through the fixing plate 710 and the insulating coating layer 300, respectively, and reference numeral 713 denotes a through hole formed on the top surface of the dovetail type coupling member 600 And the fixing bolt 720 is fastened.

Hereinafter, a process of fixing the transformer 10 to the pole 20 by the fixing device of the transformer for transformer of the present invention will be described.

The transformer 10 has the welding piece 100 welded to the outer circumferential surface of the transformer tank 11 and the dovetail type female coupling piece 200 welded to the welding piece 100. The welding piece 100 and the dovetail type The outer peripheral surface of the transformer tank 11 and the welding piece 100, the dovetail type female coupling piece 200 and the fixing plate 710 are attached to the upper surface of the female coupling piece 200 in an insulating coating layer 300) so that the welded portion is not exposed.

On the side of the main body 20, the main body fixing band 400 welded with the dovetail type male coupling piece 600 and the pair of tightening bands 500 are positioned on the outer peripheral surface of the main body 20

The fixing bracket 400 and the pole fixing band 500 are connected to each other by fastening the connecting nut 430 to the bending connection portions 410 and 510 through the connecting bolt 420, Shaped coupling member 600 by being fastened by tightening the tightening nut 540 by passing the tightening bolt 530 through the bending connection part 520 while facing the bending connection part 520 formed at the other end To the outer circumferential surface of the main body 20.

In this state, the lower end portion of the dovetail type female coupling piece 200 coupled to the transformer 10 is positioned on the upper end of the dovetail type male coupling piece 600 fixed to the electric pole 20, When the transformer 10 and the dovetail type female coupling piece 200 are lowered while the planes 222 and 622 and the planes 222 and 622 of the dovetail type male coupling piece 600 and the dovetail type male coupling piece 600 are aligned, Is inserted into the dovetail groove portion 220 of the dovetail type female coupling piece 200.

At this time, the planes 222 and 622 are formed as inclined surfaces that the lower ends of the planar surfaces 222 and 622 are retreated toward the main body 20 when viewed from the front, and the upper surface of the dovetail- Shaped groove portion 220 is inserted into the groove portion 220, the wedge action is generated in the process of inserting the dovetail-shaped protrusion portion 620 into the dovetail-shaped groove portion 220. Accordingly, the dovetail- The dovetail type male coupling piece 600 is firmly coupled.

Even if only the dovetail type female coupling piece 200 and the dovetail type male coupling piece 600 are combined, it is possible to securely secure the coupling by the action of the wedge, but the fixing bolt 720 may be passed through the fixing bolt 720, The coupling state can be more securely maintained by being fastened to the male coupling member 600.

As described above, according to the fixing apparatus for a transformer of the present invention, the welding piece 100 welded to the transformer tank 11 and the dovetail type female coupling piece 200 welded to the welding piece 100 and the fixing plate 710 Is covered by the insulating coating layer 300 so that the welded portion is not exposed to the outside, so that it is protected by the insulating coating layer 300, so that it is possible to prevent the transformer from falling due to leakage of the welded portion.

When the dovetail type female coupling piece 200 and the dovetail type groove portion 220 of the dovetail type male coupling piece 600 and the planes 222 and 622 of the dovetail type projecting portion 620 are planar 222 and 622 are formed as inclined surfaces which are retreated toward the main body 20 so that the lower end cross sectional area of the dovetail type groove portion 220 and the dovetail type projecting portion 620 is narrower than the upper end cross sectional area of the dovetail type projecting portion 620, The wedge action occurs in the process of inserting the dovetail-shaped protrusion 620 into the groove 220, so that the dovetail-type female coupling piece 200 and the dovetail-type male coupling piece 600 are firmly coupled.

Further, the fastening bolt 720 is passed through the fastening plate 710 welded to the dovetail type female coupling piece 200 and fastened to the dovetail-type male coupling piece 600, so that the fastened state can be more safely maintained.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Transformer 20: Telephone pole
100: welding piece 200: dovetail type female coupling piece
220: dovetail groove portion 221: inclined surface
222: plane 300: insulating cover layer
400: Pole fixing band 500: Pole fixing band
600: dovetail type male coupling piece 620: dovetail type projecting portion
621: slope 622: plane
700: fixing means 710: fixed plate
720: Fixing bolts

Claims (1)

A weld piece 100 welded to the outer circumferential surface of the tank 11 of the transformer 10 and having a large surface 110 toward the main pole 20 and welded to a large surface 111 of the weld piece main body 110 A dowtail type female coupling piece 200 formed with a dovetail type coupling groove 210 opened in the upper and lower parts and in the direction of the telephone main body 20 and an outer peripheral surface of the tank 11, An insulating cover layer 300 coated on the surface of the tail type female coupling piece 200 and a pole fixing band 400 attached to the outer circumference half of the pole 20 at the transformer 10, A pair of telescopic tightening bands 500 which are in close contact with the outer peripheral half portion of the telescope 20 on the opposite side of the telescope fixing band 400 and a pair of telescopic tightening bands 500 welded to the telescopic fixing band 400 and corresponding to the dovetail type female coupling pieces 200 The dovetail type male coupling piece 600 and the dovetail type female coupling piece 200 are fixed to the dovetail type male coupling piece 600 And comprising: a stage (700),
The welding member 100 includes a welding member main body 110 bent in a C-shaped iron plate and a welding blade 120 extending and bent at both ends of the welding member main body 110. The welding blade 100 Is welded and fixed to the outer peripheral surface of the transformer tank 11,
The dovetail type female coupling piece 200 has a joint surface 210 that is in close contact with a wide surface 111 of the welded piece body 110 and has a front and rear side inclined surface 221 and an inclined surface 221 And a dovetail-shaped groove 220 formed by a plane 222 which is formed by a flat surface 222,
The dovetail type male coupling piece 600 has a joint surface 610 to be welded to an intermediate portion of the pole fixing band 400 and a front surface side slope surface 221 of the dovetail type female coupling piece 200 And a dovetail-shaped protrusion 620 formed by the front and rear side inclined surfaces 621 and the planes 622 corresponding to the plane 222,
The dovetail-type male coupling piece 200 and the dovetail-type male coupling piece 600 of the dovetail-type male coupling piece 600 have a flat surface (see FIG. Shaped groove portion 220 and the dovetail-shaped protruding portion 620 are formed to be narrower than the upper end-side cross-sectional area of the dovetail-shaped protruding portion 620, When the dovetail-shaped protrusion 620 is inserted into the protrusion 220, the protrusion can be firmly coupled by the action of the wedge,
The fixing means 700 includes a fixing plate 710 welded to the upper surface of the welding piece 100 and the dovetail type female coupling piece 200 and a fixing plate 710 penetrating the fixing plate 710, And a fixing bolt 720 fastened to the upper surface of the base plate 600,
Wherein the insulating coating layer 300 is coated on the outer peripheral surfaces of the welding piece 100, the dovetail type female coupling piece 200, the fixing plate 710, and the transformer tank 11.
KR1020150104494A 2015-07-23 2015-07-23 Apparatus for fixing transformer of electric power transformation KR101554855B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101759277B1 (en) 2017-04-27 2017-07-19 우성기업(주) Apparatus for fixing transformer of electric power transformation
KR20200027744A (en) * 2018-09-05 2020-03-13 한국전력공사 Hanger band for pole transformer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200207906Y1 (en) 2000-07-27 2000-12-15 조일성업전기주식회사 A structure for fasten transformer with a bracket
KR100734509B1 (en) 2007-03-08 2007-07-06 (주)전우종합기술 Separatable structure of transformer on the electric pole
KR100882793B1 (en) 2008-11-14 2009-02-10 태한전기 주식회사 Establishing structure of transformer at the electric pole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200207906Y1 (en) 2000-07-27 2000-12-15 조일성업전기주식회사 A structure for fasten transformer with a bracket
KR100734509B1 (en) 2007-03-08 2007-07-06 (주)전우종합기술 Separatable structure of transformer on the electric pole
KR100882793B1 (en) 2008-11-14 2009-02-10 태한전기 주식회사 Establishing structure of transformer at the electric pole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101759277B1 (en) 2017-04-27 2017-07-19 우성기업(주) Apparatus for fixing transformer of electric power transformation
KR20200027744A (en) * 2018-09-05 2020-03-13 한국전력공사 Hanger band for pole transformer
KR102128448B1 (en) 2018-09-05 2020-06-30 한국전력공사 Hanger band for pole transformer

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