Low-voltage 20kV on-load voltage regulation dry-type transformer

Abstract

The utility model discloses a low-voltage 20kV on-load voltage regulation dry-type transformer, and relates to the technical field of transformers. The device comprises a bottom plate, a U-shaped guardrail is fixedly connected to the top end of the bottom plate, a stand column is fixedly connected to the position, close to the center, of the top end of the bottom plate, two sets of fulcrum shafts are symmetrically and fixedly connected to the position, close to the stand column, of the top end of the bottom plate, and a sliding plate is slidably connected between outer rings of the two sets of fulcrum shafts. A transformer body is arranged in the center of the top end of the sliding plate, a guardrail door is slidably connected to the position, close to the U-shaped guardrail, of the top end of the bottom plate, a supporting plate is fixedly connected to the side end of the guardrail door, and a bolt is rotationally connected to the interior of the supporting plate in a threaded mode. Through operation of the electric cylinder and mutual cooperation of the side blocks, the sliding plates and the fulcrum shafts, the problems that the height of the transformer to the ground cannot be adjusted, and if the distance between the transformer and the ground is too small, the ground is wet, and the insulation resistance is possibly reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely is low pressure 20kV has the load pressure regulation dry -type transformer. BACKGROUND

[0002] The power transformer is a kind of static electrical equipment, is used to change the AC voltage (current) of a certain numerical value into the voltage (current) of another or several numerical values of the same frequency, the iron core of dry-type power transformer adopts high magnetic flux high-quality grain-oriented cold-rolled silicon steel sheet, 45 ° full oblique step joint, the iron core adopts the special square tube pull plate structure, core column adopts insulation band binding, the surface of iron core is coated with special resin to prevent damp and rust, effectively reduces no-load loss, no-load current and core noise;

[0003] The existing transformer is usually placed outdoors, and there is high voltage and current on the surface of the transformer, some transformers are not provided with corresponding protection mechanism, personnel or animals will cause electric shock accident to occur if accidentally touch the transformer, have certain dangerous nature, at the same time, the height of the transformer to the ground cannot be adjusted, if the distance between the transformer and the ground is too small, the ground damp may cause the insulation resistance to decrease, thereby affecting the insulation performance of the transformer, to solve the above problems, the inventor proposes low pressure 20kV has the load pressure regulation dry -type transformer to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to solve the problem that personnel or animals will cause electric shock accident to occur if accidentally touch the transformer, and the height of the transformer to the ground cannot be adjusted, if the distance between the transformer and the ground is too small, the ground damp may cause the insulation resistance to decrease, the utility model discloses low pressure 20kV has the load pressure regulation dry -type transformer.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: low pressure 20kV has the load pressure regulation dry -type transformer, including the bottom plate, the bottom plate top end fixedly connected with U type guardrail, the bottom plate top end fixedly connected with the stand near the center, the bottom plate top end and near the stand symmetrically fixedly connected with two groups of support shaft, the outer ring between two groups of support shaftes is slidably connected with sliding plate, the sliding plate top end center is equipped with transformer body, the bottom plate top end and near U type guardrail place slidably connected with guardrail door, the guardrail door side end fixedly connected with support plate, the support plate inside screw thread rotatably connected with bolt.

[0006] Preferably, the bottom plate top end and near U type guardrail one side place are equipped with screw hole, and screw hole and support plate are at the same level, the side end of guardrail door away from transformer body is fixedly connected with reflective strip.

[0007] Preferably, the column side end and close to the top is fixedly connected with a protective plate, and the protective plate is above the transformer body, the column side end away from the protective plate and close to the top is fixedly connected with a mounting plate one, and the column side end below the protective plate is fixedly connected with a mounting plate two.

[0008] Preferably, the mounting plate one top end is fixedly connected with an alarm lamp, the mounting plate one top end and close to the alarm lamp is fixedly connected with a warning sign, and the sliding plate close to the column one side end center is fixedly connected with a side block.

[0009] Preferably, the mounting plate two bottom end is fixedly connected with an electric cylinder, and the electric cylinder output end is fixedly connected with the side block.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1、The utility model discloses a U-shaped guardrail and guardrail door are set up, and then under the cooperation between the reflecting strip and the bolt, the problem that if personnel or animals accidentally touch the transformer, electric shock accident can occur is solved.

[0012] 2、The utility model discloses an electric cylinder is run, and then under the cooperation between the side block and the sliding plate and the supporting shaft, the problem that the height of the transformer to the ground cannot be adjusted is solved, and if the distance between the transformer and the ground is too small, the ground damp can cause the insulation resistance to reduce. DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is the whole structure schematic diagram of the utility model.

[0015] Figure 2 It is the guardrail door structure schematic diagram of the utility model.

[0016] Figure 3 It is the utility model Figure 1 A place amplification structure schematic diagram in the utility model.

[0017] Figure 4 It is the utility model Figure 1 B place amplification structure schematic diagram in the utility model.

[0018] In the diagram: 1. Base plate; 11. U-shaped guardrail; 2. Post; 21. Protective plate; 22. Mounting plate one; 24. Alarm light; 25. Warning sign; 26. Mounting plate two; 27. Electric cylinder; 3. Guardrail gate; 31. Screw hole; 32. Support plate; 33. Bolt; 34. Reflective strip; 4. Support shaft; 41. Sliding plate; 42. Side block; 43. Transformer body. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figures 1-4 As shown, this utility model provides a technical solution: a low-voltage 20kV on-load tap-changing dry-type transformer, including a base plate 1, a U-shaped guardrail 11 fixedly connected to the top of the base plate 1, a column 2 fixedly connected to the top of the base plate 1 near the center, two sets of support shafts 4 symmetrically fixedly connected to the top of the base plate 1 near the column 2, a sliding plate 41 slidably connected between the outer rings of the two sets of support shafts 4, a transformer body 43 provided at the center of the top of the sliding plate 41, a guardrail gate 3 slidably connected to the top of the base plate 1 near the U-shaped guardrail 11, a support plate 32 fixedly connected to the side of the guardrail gate 3, and a bolt 33 rotatably connected to the internal thread of the support plate 32, wherein an annular disc is provided at the top of the support shaft 4, and a detachable L-shaped limiting plate is symmetrically provided at the top of the sliding plate 41 near the transformer body 43.

[0021] A screw hole 31 is provided at the top of the base plate 1 and near the side of the U-shaped guardrail 11, and the screw hole 31 is at the same level as the support plate 32.

[0022] By adopting the above technical solution, a screw hole 31 is set at the top of the base plate 1 to cooperate with the bolt 33 to achieve the effect of limiting the guardrail gate 3.

[0023] Reflective strips 34 are symmetrically fixedly connected to the side of the guardrail gate 3 away from the transformer body 43.

[0024] By adopting the above technical solution, reflective strips 34 are installed on the side of the guardrail gate 3 to serve as a warning at night.

[0025] A protective plate 21 is fixedly connected to the side end of the column 2 and near the top, and the protective plate 21 is located above the transformer body 43.

[0026] By adopting the above technical solution, a protective plate 21 is installed on the side of the column 2 to protect the transformer body 43.

[0027] The mounting plate one 22 is fixedly connected to the side end of the column 2 away from the guard plate 21 and close to the top, and the mounting plate two 26 is fixedly connected to the side end of the column 2 below the guard plate 21.

[0028] By adopting the above technical scheme, the mounting plate one 22 and the mounting plate two 26 are arranged to fix and limit the electric cylinder 27 and the warning structure.

[0029] The alarm lamp 24 is fixedly connected to the top end of the mounting plate one 22, and the warning board 25 is fixedly connected to the top end of the mounting plate one 22 close to the alarm lamp 24.

[0030] By adopting the above technical scheme, the alarm lamp 24 and the warning board 25 are arranged at the top end of the mounting plate one 22 to achieve the warning effect.

[0031] The side block 42 is fixedly connected to the center of the side end of the sliding plate 41 close to the column 2.

[0032] By adopting the above technical scheme, the side block 42 is arranged at the side end of the sliding plate 41 to cooperate with the electric cylinder 27 to adjust the height of the sliding plate 41.

[0033] The electric cylinder 27 is fixedly connected to the bottom end of the mounting plate two 26, and the output end of the electric cylinder 27 is fixedly connected with the side block 42.

[0034] By adopting the above technical scheme, the electric cylinder 27 is operated to drive the fixedly connected side block 42 to lift the sliding plate 41.

[0035] When the device is used, the U-shaped guardrail 11 and the guardrail door 3 are arranged at the top end of the bottom plate 1 to protect the transformer body 43, thereby preventing personnel and animals from directly touching the transformer body 43. When the transformer body 43 needs to be repaired, the bolt 33 in the support plate 32 is rotated to release the limiting of the support plate 32 and the guardrail door 3, and then the guardrail door 3 can be moved into the U-shaped guardrail 11 to work.

[0036] When the distance between the transformer body 43 and the ground needs to be adjusted, the electric cylinder 27 is started to drive the fixedly connected side block 42 to lift the sliding plate 41 under the cooperation of the two groups of support shafts 4, thereby adjusting the distance between the transformer body 43 and the ground. The annular disc is arranged at the top end of the support shaft 4 to limit the lifting distance of the transformer body 43. By adjusting the distance between the transformer body 43 and the ground, the interference of the environmental factors on the operation of the transformer body 43 can be minimized to ensure the stability of the equipment performance.

[0037] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. Low voltage 20 kV on-load tap changer dry type transformer comprising a bottom plate (1), characterized in that: The bottom plate (1) top end fixedly connected with U-shaped guardrail (11), the bottom plate (1) top end near the center fixedly connected with stand column (2), the bottom plate (1) top end and near stand column (2) place symmetry fixedly connected with two groups of support shaft (4), two groups of the support shaft (4) outer circle between slidingly connected with sliding plate (41), the sliding plate (41) top end center is equipped with transformer body (43), the bottom plate (1) top end and near U-shaped guardrail (11) place slidingly connected with guardrail door (3), the guardrail door (3) side end fixedly connected with support plate (32), the support plate (32) inside screw thread rotatably connected with bolt (33).

2. The low voltage 20 kV on-load tap changer dry-type transformer as claimed in claim 1, wherein, The bottom plate (1) top end and near U-shaped guardrail (11) one side place is equipped with screw hole (31), and screw hole (31) and support plate (32) are at the same level.

3. The low voltage 20 kV on-load tap changer dry-type transformer as claimed in claim 1, wherein, The guardrail door (3) is away from transformer body (43) one side end symmetry fixedly connected with reflective strip (34).

4. The low voltage 20 kV on-load tap changer dry-type transformer of claim 1, wherein, The stand column (2) side end and near top fixedly connected with protection plate (21), and protection plate (21) is located above transformer body (43).

5. The low voltage 20 kV on-load tap changer dry-type transformer as claimed in claim 4, wherein, The stand column (2) is away from protection plate (21) one side end and near top fixedly connected with mounting plate one (22), and the stand column (2) side end and below protection plate (21) fixedly connected with mounting plate two (26).

6. The low voltage 20 kV on-load tap changer dry-type transformer of claim 5, wherein, The mounting plate one (22) top end fixedly connected with alarm lamp (24), and the mounting plate one (22) top end and near alarm lamp (24) place fixedly connected with warning sign (25).

7. The low voltage 20 kV on-load tap changer dry-type transformer as claimed in claim 5, wherein, The sliding plate (41) near stand column (2) one side end center fixedly connected with side block (42).

8. The low voltage 20 kV on-load tap changer dry-type transformer of claim 7, wherein, The mounting plate two (26) bottom end fixedly connected with electric cylinder (27), and electric cylinder (27) output end and side block (42) fixedly connected.

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