CN210272030U

CN210272030U - Integrated guide rod

Info

Publication number: CN210272030U
Application number: CN201921541405.0U
Authority: CN
Inventors: 徐霄
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-04-07
Anticipated expiration: 2029-09-17

Abstract

The utility model belongs to the technical field of the transformer, concretely relates to integral type guide arm, including copper bar and the pouring body, the both ends of copper bar all are equipped with the wiring hole, and the pouring body includes skirt body and mounting flange, and mounting flange is platelike structure, and four have evenly been arranged at mounting flange's middle part the skirt body, every the skirt in vivo all inlayed one the copper bar, the pouring body by resin casting moulding. The utility model discloses the guide arm replaces with the copper bar, and therefore the transformer is connected more conveniently, rationally, reliably with the distributor. By adopting the integrated guide rod, the larger the transformer capacity, the more obvious the load loss is reduced, so that the copper consumption of the transformer coil is reduced, and the energy-saving effect is obvious.

Description

Integrated guide rod

Technical Field

The utility model belongs to the technical field of the transformer, concretely relates to integral type guide arm.

Background

Oil-immersed transformer binding post comprises bushing, conducting rod, the fastener of shaking hands and oil-proof sealing pad, and bushing includes porcelain cap, porcelain skirt body and porcelain insulator seat. The head and the tail of the transformer coil are connected with the bottom of the conducting rod, and penetrate through the box cover through the conducting rod to be electrically connected with the outside. Referring to fig. 5, the upper cover of the transformer is made of a steel plate, when the wires a, b, c and 0 transmit electric energy outwards, the electric current passes through the steel plate to generate eddy current due to the magnetic and electric conduction effects of the steel, so that local overheating is caused, the circumference of each phase of conducting rod is equivalent to one turn of short-circuit conducting wire, and short-circuit current is formed inside the conducting rod, so that a part of energy needs to be absorbed from the transformer, and the load loss and the electric energy loss are increased. In the past, a 30mm notch is formed between phase line openings of a box cover, and a non-magnetic steel plate strip is embedded and welded for magnetic isolation. Because the non-magnetic steel plate also has conductivity, the non-magnetic steel plate is not ideal for complete magnetic isolation, and although the non-magnetic steel plate is adopted for welding, the problems can not be thoroughly solved.

Disclosure of Invention

In order to overcome the shortcomings of the prior art, the utility model provides an integrated guide rod.

The utility model discloses a realize through following technical scheme: the utility model provides an integral type guide arm, includes the copper bar and the pouring body, the both ends of copper bar all are equipped with the wiring hole, and the pouring body includes the skirt body and mounting flange, and mounting flange is platelike structure, and mounting flange's middle part has evenly arranged four the skirt body, every the skirt in vivo all inlayed one the copper bar, the pouring body by resin casting shaping.

Further, the skirt body is a waist-shaped hole-shaped cylinder.

Furthermore, bolt holes are formed in the periphery of the mounting flange.

The invention uses copper bars to replace conducting bars, arranges the conducting bars at a certain interval, and uses resin to pour, fix and form the copper bars into a whole, and the pouring body is used as a skirt body and an installation flange. The resin has no electric and magnetic conduction characteristics, so that complete magnetic isolation is achieved.

The utility model has the advantages that: the structure is simple and reasonable, the manufacturing cost is low, the installation is convenient, and the effect of reducing load loss is good; the processing of the copper bar is relatively simpler than the manufacturing of the conducting rod, and the working procedures of turning, drilling, casting and the like are not needed; compared with the firing process of the porcelain bushing, the casting of the casting body is simpler and safer; the connection of the transformer to the power distribution cabinet generally adopts copper bars for connection, and the guide rod of the transformer is replaced by the copper bars, so that the connection of the transformer and the power distribution cabinet is more convenient, reasonable and reliable. By adopting the integrated guide rod, the larger the transformer capacity, the more obvious the load loss is reduced, so that the copper consumption of the transformer coil is reduced, and the energy-saving effect is obvious.

Drawings

Fig. 1 is a top view of the structure of the present invention;

FIG. 2 is a left side view of the structure of the present invention;

fig. 3 is a perspective view of the present invention;

fig. 4 is a schematic view of the installation of the present invention;

FIG. 5 is a schematic diagram of a prior art design;

in the figure, 1, a copper bar 2, a skirt body 3, a mounting flange 4 and an oil tank cover.

Detailed Description

The invention will be further explained below with reference to the drawings and examples.

As shown in fig. 1 to 4, an integral type guide arm, including copper bar 1 and the pouring body, the both ends of copper bar 1 all are equipped with the wiring hole, and the pouring body includes skirt body 2 and mounting flange 3, and mounting flange 3 is platelike structure, furtherly, mounting flange 3 be equipped with the bolt hole all around. Four skirts 2 are evenly arranged in the middle of the mounting flange 3, and the skirts 2 are waist-shaped hole-shaped cylinders. Each copper bar 1 is embedded in each skirt body 2, the casting bodies are formed by resin in a casting mode, and the copper bars 1 are placed in a mold and cast into a whole. The invention replaces the conducting rod with the copper bar, arranges with certain interval, fixes and forms as an organic whole with the resin casting, the casting body is used as skirt 2 and mounting flange 3. A long hole is formed in the oil tank cover 4 of the transformer, and the integrated guide rod is fixed above the long hole of the oil tank cover 4 through a bolt. When the wires a, b, c and 0 transmit electric energy outwards, the resin does not have the characteristics of electric conduction and magnetic conduction, so that complete magnetic isolation is achieved, three-phase current simultaneously passes through a rectangular hole, the vector sum of the current is zero, and no current passes through a short circuit ring of the rectangular hole, so that additional loss is not generated.

Claims

1. An integral type guide arm which characterized in that: including copper bar (1) and the pouring body, the both ends of copper bar (1) all are equipped with the wiring hole, and the pouring body includes skirt body (2) and mounting flange (3), and mounting flange (3) are platelike structure, and four have evenly been arranged at the middle part of mounting flange (3) skirt body (2), every skirt body (2) in all embedded one copper bar (1), the pouring body by resin casting moulding.

2. The integrated guide bar of claim 1, wherein: the skirt body (2) is a waist-shaped hole-shaped cylinder.

3. The integrated guide bar of claim 1, wherein: bolt holes are formed in the periphery of the mounting flange (3).