A transformer high-voltage outgoing line device and method of use

Abstract

The application discloses a transformer high-voltage outlet device and a use method, which comprises an L-shaped voltage equalizing component, a voltage equalizing ball, a sleeve, a fixing support and a connecting support, the connecting support is fixedly arranged on a body clamp of the transformer, the fixing support and the connecting support are detachably connected, the L-shaped voltage equalizing component and the voltage equalizing ball are both fixedly arranged on the fixing support, the sleeve is detachably arranged on an oil tank of the transformer, a middle part of a coil of the transformer is led out through a middle part outlet, an end of a horizontal section of the L-shaped voltage equalizing component corresponds to the middle part outlet, and an end of a vertical section is fixedly connected with the voltage equalizing ball; the installation of the outlet structure can be completed before the body is assembled; the L-shaped voltage equalizing component, the voltage equalizing ball and the fixing support are integrally modularly installed during the installation; the installation of the outlet structure can be simultaneously performed during the body assembly; the installation time is shortened, the installation efficiency is improved, and the damage risk of the outlet structure during hoisting and turning is reduced.

Description

Technical Field

[0001] This invention relates to the field of transformer equipment technology, specifically to a transformer high-voltage direct output line device and its usage method. Background Technology

[0002] The direct-outgoing line device of a transformer generally guides the transformer coil from the middle outlet to the top outlet by setting up an L-shaped voltage equalization component, voltage equalization ball and bushing. This direct-outgoing line device has a compact structure, which can greatly simplify the outlet structure. At the same time, since the L-shaped voltage equalization component and voltage equalization ball are arranged inside the transformer oil tank and led out from the oil tank through the bushing, the problem of limited space in the traditional outlet structure is avoided, and the explosion-proof performance of the transformer is improved.

[0003] Due to the overall L-shaped design of the straight-out cable outlet device, the center of gravity is offset from the main structure. Furthermore, to avoid damaging its own insulation structure, the straight-out cable outlet device does not have lifting points, making it difficult to lift. Therefore, it is generally lifted by holding the equalizing ball. However, since the lifting straps are in direct contact with the straight-out cable outlet device, the lifting straps will cause stress on the surface of the straight-out structure during the turning process, which can easily lead to surface damage or structural deformation of the straight-out cable outlet device.

[0004] In view of the above-mentioned defects, the inventors of this invention have finally obtained this invention after a long period of research and practice. Summary of the Invention

[0005] To address the aforementioned technical deficiencies, the present invention provides a transformer high-voltage direct-outgoing line device, comprising an L-shaped voltage equalization assembly, a voltage equalization ball, a bushing, a fixed bracket, and a connecting bracket. The connecting bracket is fixedly mounted on the transformer body clamp, and the fixed bracket and the connecting bracket are detachably connected. The L-shaped voltage equalization assembly and the voltage equalization ball are both fixedly mounted on the fixed bracket. The bushing is detachably mounted on the transformer tank. The middle part of the transformer coil is led out through a middle outgoing line. The horizontal end of the L-shaped voltage equalization assembly corresponds to the middle outgoing line, and the vertical end of the L-shaped voltage equalization assembly is fixedly connected to the voltage equalization ball. One end of the high-voltage lead disposed within the L-shaped voltage equalization assembly and the voltage equalization ball is connected to the middle outgoing line, and the other end is connected to the bushing.

[0006] Preferably, the fixed support includes a first main upright, a second main upright, a supporting upright, and a tray. The first main upright, the second main upright, and the supporting upright are all arranged in parallel, and the equalizing ball is disposed between the first main upright and the second main upright. The tray is arranged perpendicularly to the first main upright, the second main upright, and the supporting upright. One side of the tray is connected to the first main upright and the second main upright simultaneously through a first connecting plate, and the other side is fixedly connected to the supporting upright through a second connecting plate. The equalizing ball is fixedly connected to the first main upright and the second main upright through a first clamp, and the horizontal section of the L-shaped equalizing component is fixedly connected to the tray through a second clamp.

[0007] Preferably, a wooden pad is provided on the pallet, the wooden pad is disposed between the horizontal section of the L-shaped pressure equalization component and the pallet, and the second clamp is fixedly disposed on the wooden pad.

[0008] Preferably, both the first connecting plate and the second connecting plate are configured as straight rods with an L-shaped cross-section, and the first connecting plate and the second connecting plate are arranged in parallel. The two ends of the first connecting plate are fixedly connected to the first main upright and the second main upright, respectively.

[0009] Preferably, the connecting bracket includes a bottom connecting seat, a top connecting seat, and a stable connecting seat. The bottom connecting seat, the top connecting seat, and the stable connecting seat are all fixedly mounted on the transformer body clamp. The top ends of the first main upright and the second main upright are detachably connected to the top connecting seat, the bottom ends of the first main upright and the second main upright are detachably connected to the bottom connecting seat, and the bottom of the supporting upright is detachably connected to the stable connecting seat.

[0010] Preferably, the bottom connecting seat and the top connecting seat are disposed on the side of the corresponding first main body or the second main body, and an adjustment plate is provided between the bottom connecting seat and the top connecting seat and the corresponding first main body or the second main body.

[0011] Preferably, the connecting bracket further includes a wiring rod, which is configured as an L-shaped rod. The horizontal section of the wiring rod is detachably connected to the transformer body clamp, and the bottom end of the vertical section of the wiring rod is detachably provided with a terminal plate. One end of the high-voltage lead is connected to the bushing through the terminal plate.

[0012] Preferably, a method of using the high-voltage direct-output outlet device of the transformer includes the following steps:

[0013] S1, the fixing frame is laid flat, and the L-shaped pressure equalization component and the pressure equalization ball are fixedly installed on the fixing frame;

[0014] S2, the bottom connecting seat, the top connecting seat and the stable connecting seat are installed on the transformer body clamp;

[0015] S3, lift and flip the fixed frame to form a vertical state, move the fixed frame to the side of the transformer body, insert the high voltage lead into the L-shaped voltage equalization assembly and the voltage equalization ball, pre-install the fixed bracket and the connecting bracket, and connect the high voltage lead to the middle outlet;

[0016] S4, set the wiring rod to simulate the position of the bushing, and adjust the position of the L-shaped equalizing component and the equalizing ball based on the wiring rod;

[0017] S5, crimp the high-voltage lead to the terminal block;

[0018] S6, Install the bushing on the riser seat on the transformer tank, and press the bushing to the terminal block.

[0019] Preferably, in step S4, the connection positions of the fixing frame, the bottom connecting seat, the top connecting seat, and the stabilizing connecting seat are adjusted by the adjusting plate, and the connection state of the first clamp and the first clamp is adjusted. The verticality of the L-shaped equalizing component and the equalizing ball, the concentricity of the horizontal section of the L-shaped equalizing component and the middle outlet line, and the concentricity of the equalizing ball and the sleeve are confirmed.

[0020] Preferably, in step S6, before installing the sleeve, the concentricity between the center of the support flange of the riser and the equalizing ball is measured using a plumb line to ensure that the concentricity deviation is ±10mm.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can complete the installation of the outgoing line structure before the assembly of the device body. During installation, the L-shaped equalizing component, the equalizing ball and the fixed bracket are installed as a whole in a modular manner. The outgoing line structure can be installed at the same time as the device body assembly, which shortens the installation time, improves the installation efficiency and reduces the risk of damage to the outgoing line structure during lifting and turning. Attached Figure Description

[0022] Figure 1 This is a side view of the connection structure between the fixed bracket and the connecting bracket;

[0023] Figure 2 This is a front view of the connection structure between the fixed bracket and the connecting bracket;

[0024] Figure 3 This is a top view of the connection structure between the fixed bracket and the connecting bracket;

[0025] Figure 4 This is a side view of the connection structure of the fixed bracket;

[0026] Figure 5 This is a front view of the connection structure of the fixed bracket;

[0027] Figure 6 This is a top view of the connection structure of the fixed bracket;

[0028] Figure 7 This is a schematic diagram of the installation of the sleeve.

[0029] The numbers in the diagram represent:

[0030] 1-L-type equalizing assembly; 2-Equalizing ball; 3-Sleeve; 4-Fixed bracket; 5-Connecting bracket; 6-Body clamp; 7-Oil tank; 8-High voltage lead wire; 41-First main support; 42-Second main support; 43-Supporting support; 44-Panel; 45-First clamp; 46-Second clamp; 47-First connecting plate; 48-Second connecting plate; 49-Padded wood; 51-Bottom connecting seat; 52-Top connecting seat; 53-Stabilizing connecting seat; 54-First connecting rod; 55-Second connecting rod; 56-Third connecting rod; 57-Fourth connecting rod; 58-Wiring rod; 59-Terminal plate. Detailed Implementation

[0031] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] like Figures 1 to 7 As shown, Figure 1 This is a side view of the connection structure between the fixed bracket and the connecting bracket; Figure 2 This is a front view of the connection structure between the fixed bracket and the connecting bracket; Figure 3 This is a top view of the connection structure between the fixed bracket and the connecting bracket; Figure 4 This is a side view of the connection structure of the fixed bracket; Figure 5 This is a front view of the connection structure of the fixed bracket; Figure 6 This is a top view of the connection structure of the fixed bracket; Figure 7 This is a schematic diagram of the installation of the sleeve.

[0034] The high-voltage direct-outgoing line device for a transformer according to the present invention includes an L-shaped voltage equalization assembly 1, a voltage equalization ball 2, a bushing 3, a fixed bracket 4, and a connecting bracket 5. The connecting bracket 5 is fixedly mounted on the transformer body clamp 6. The fixed bracket 4 and the connecting bracket 5 are detachably connected. The L-shaped voltage equalization assembly 1 and the voltage equalization ball 2 are both fixedly mounted on the fixed bracket 4. The bushing 3 is detachably mounted on the transformer oil tank 7. The middle part of the transformer coil is led out through the middle outgoing line. The horizontal end of the L-shaped voltage equalization assembly 1 is set corresponding to the middle outgoing line. The vertical end of the L-shaped voltage equalization assembly 1 is fixedly connected to the voltage equalization ball 2. One end of the high-voltage lead 8 set in the L-shaped voltage equalization assembly 1 and the voltage equalization ball 2 is connected to the middle outgoing line and the other end is connected to the bushing 3.

[0035] The fixed support 4 includes a first main pillar 41, a second main pillar 42, a supporting pillar 43, and a support plate 44. The first main pillar 41, the second main pillar 42, and the supporting pillar 43 are all arranged in parallel, and the equalizing ball 2 is arranged between the first main pillar 41 and the second main pillar 42. The support plate 44 is arranged perpendicular to the first main pillar 41, the second main pillar 42, and the supporting pillar 43. One side of the support plate 44 is connected to the first main pillar 41 and the second main pillar 42 simultaneously through a first connecting plate 47, and the other side is fixedly connected to the supporting pillar through a second connecting plate 48. The equalizing ball 2 is fixedly connected to the first main pillar 41 and the second main pillar 42 through a first clamp 45. The horizontal section of the L-shaped equalizing component 1 is fixedly connected to the support plate 44 through a second clamp 46, thereby realizing the fixed connection between the L-shaped equalizing component 1, the equalizing ball 2, and the fixed support 4.

[0036] The fixed bracket 4 is pre-assembled, and then the L-shaped pressure equalizing component 1 and the pressure equalizing ball 2 are fixed on the fixed bracket 4. The structural strength of the fixed bracket 4 ensures balanced force during overall turning. During lifting, the force point of the lifting point is on the fixed bracket 4, and the overall weight of the outgoing structure is evenly distributed on the fixed bracket 4, ensuring good rigidity and preventing deformation. Due to the modular installation method, part of the outgoing structure can be assembled before the main body assembly. After the main body assembly is completed, the module is fixed to the main body to complete the installation, greatly improving the installation efficiency.

[0037] A wooden pad 49 is provided on the pallet 44. The wooden pad 49 is positioned between the horizontal section of the L-shaped pressure equalizing component 1 and the pallet 44. The thickness of the wooden pad 49 is adjusted according to the actual situation to ensure that the pallet 44 effectively supports the horizontal section of the L-shaped pressure equalizing component 1 through the wooden pad 49. The second clamp 46 is fixedly mounted on the wooden pad 49.

[0038] Both the first connecting plate 47 and the second connecting plate 48 are configured as straight rods with an L-shaped cross section. The first connecting plate 47 and the second connecting plate 48 are arranged in parallel. The two ends of the first connecting plate 47 are fixedly connected to the first main upright 41 and the second main upright 42, respectively. The L-shaped structure can achieve a stable connection between the mutually perpendicular uprights and the support plate 44.

[0039] The present invention allows the installation of the outgoing line structure to be completed before the assembly of the reactor body. During installation, the L-shaped equalizing component 1, the equalizing ball 2 and the fixed bracket 4 are installed as a whole in a modular manner. The outgoing line structure can be installed at the same time as the reactor body assembly, which shortens the installation time, improves the installation efficiency and reduces the risk of damage to the outgoing line structure during lifting and turning.

[0040] Example 2

[0041] The connecting bracket 5 includes a bottom connecting seat 51, a top connecting seat 52, and a stable connecting seat 53. The bottom connecting seat 51, the top connecting seat 52, and the stable connecting seat 53 are all fixedly mounted on the transformer body clamp 6. The top ends of the first main support 41 and the second main support 42 are detachably connected to the top connecting seat 52, and the bottom ends of the first main support 41 and the second main support 42 are detachably connected to the bottom connecting seat 51. The bottom of the supporting support 43 is detachably connected to the stable connecting seat 53, thereby realizing the detachable connection between the connecting bracket 5 and the fixed bracket 4.

[0042] Specifically, the bottom connecting seat 51 and the top connecting seat 52 are disposed on the side of the corresponding first main body 41 or second main body 42. The bottom connecting seat 51 is connected to the first main body 41 through the first connecting rod 54 and the second connecting rod 55. The top connecting seat 52 is connected to the first main body 41 through the third connecting rod 56 and the second main body 42 through the fourth connecting rod 57. An adjusting plate is provided between the bottom connecting seat 51 and the top connecting seat 52 and the corresponding first main body 41 or second main body 42. By adjusting the thickness of the adjusting plate, the horizontal position of the fixed bracket 4 on the transformer can be finely adjusted, thereby facilitating the alignment of the outgoing line structure. Similarly, the connecting structure disposed on the side between the connecting seat and the upright can also achieve fine adjustment of the vertical position of the fixed bracket 4 on the transformer.

[0043] Preferably, the connecting bracket 5 further includes a wiring rod 58, which is configured as an L-shaped rod. The horizontal section of the wiring rod 58 is detachably connected to the transformer body clamp 6. The bottom end of the vertical section of the wiring rod 58 is detachably provided with a terminal plate 59. One end of the high-voltage lead 8 is connected to the bushing 3 through the terminal plate 59. During installation, the wiring rod 58 is used to simulate the position of the terminal plate 59, thereby allowing the fixing bracket 4 to adjust its position based on the position of the terminal plate 59, ensuring the accurate installation position of the bushing 3 and the equalizing ball 2.

[0044] Example 3

[0045] The method of using the transformer high-voltage direct output line device of the present invention includes the following steps:

[0046] S1, the fixing frame is laid flat, and the L-shaped pressure equalizing component 1 and the pressure equalizing ball 2 are fixedly installed on the fixing frame;

[0047] S2, the bottom connecting seat 51, the top connecting seat 52 and the stable connecting seat 53 are installed on the transformer body clamp 6;

[0048] S3, lift and flip the fixed frame to form a vertical state, move the fixed frame to the side of the transformer body, insert the high voltage lead 8 into the L-shaped equalizing component 1 and the equalizing ball 2, pre-install the fixed bracket 4 and the connecting bracket 5, and connect the high voltage lead 8 to the middle outlet;

[0049] S4, set the wiring rod 58 to simulate the position of the sleeve 3, and adjust the position of the L-shaped equalizing component 1 and the equalizing ball 2 based on the wiring rod 58;

[0050] S5, the high-voltage lead 8 is crimped to the terminal block 59;

[0051] S6, install the bushing 3 on the riser seat on the transformer oil tank 7, and press the bushing 3 to the terminal plate 59.

[0052] Preferably, in step S4, the connection positions of the fixing frame, the bottom connecting seat 51, the top connecting seat 52, and the stabilizing connecting seat 53 are adjusted by the adjusting plate, and the connection state of the first clamp 45 is adjusted. The verticality of the L-shaped pressure equalizing component 1 and the pressure equalizing ball 2, the concentricity of the horizontal section of the L-shaped pressure equalizing component 1 and the middle outlet line, and the concentricity of the pressure equalizing ball 2 and the sleeve 3 are confirmed.

[0053] Preferably, in step S6, before installing the sleeve 3, the concentricity between the center of the support flange of the riser and the equalizing ball 2 is measured using a plumb line to ensure that the concentricity deviation is ±10mm; if the concentricity deviation exceeds the tolerance, it is adjusted again.

[0054] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A transformer high-voltage direct output line device, characterized in that, The transformer includes an L-shaped voltage equalization assembly, a voltage equalization sphere, a bushing, a fixed bracket, and a connecting bracket. The connecting bracket is fixedly mounted on the transformer body clamp. The fixed bracket and the connecting bracket are detachably connected. The L-shaped voltage equalization assembly and the voltage equalization sphere are both fixedly mounted on the fixed bracket. The bushing is detachably mounted on the transformer's oil tank. The transformer's coils are led out through a central lead-out wire at the center. The horizontal end of the L-shaped voltage equalization assembly corresponds to the central lead-out wire. The vertical end of the L-shaped voltage equalization assembly is fixedly connected to the voltage equalization sphere. One end of the high-voltage lead wire disposed in the L-shaped voltage equalization assembly and the voltage equalization sphere is connected to the central lead-out wire, and the other end is connected to the bushing.

2. The transformer high-voltage direct output line device as described in claim 1, characterized in that, The fixed support includes a first main upright, a second main upright, a supporting upright, and a tray. The first main upright, the second main upright, and the supporting upright are all arranged in parallel, and the equalizing ball is arranged between the first main upright and the second main upright. The tray is arranged perpendicularly to the first main upright, the second main upright, and the supporting upright. One side of the tray is connected to the first main upright and the second main upright simultaneously through a first connecting plate, and the other side is fixedly connected to the supporting upright through a second connecting plate. The equalizing ball is fixedly connected to the first main upright and the second main upright through a first clamp. The horizontal section of the L-shaped equalizing component is fixedly connected to the tray through a second clamp.

3. The transformer high-voltage direct output line device as described in claim 2, characterized in that, A wooden pad is provided on the pallet, and the wooden pad is placed between the horizontal section of the L-shaped pressure equalization component and the pallet. The second clamp is fixedly installed on the wooden pad.

4. The transformer high-voltage direct output line device as described in claim 3, characterized in that, Both the first connecting plate and the second connecting plate are configured as straight rods with an L-shaped cross-section. The first connecting plate and the second connecting plate are arranged in parallel, and the two ends of the first connecting plate are fixedly connected to the first main upright and the second main upright, respectively.

5. The transformer high-voltage direct output line device as described in claim 4, characterized in that, The connecting bracket includes a bottom connecting seat, a top connecting seat, and a stable connecting seat. The bottom connecting seat, the top connecting seat, and the stable connecting seat are all fixedly mounted on the transformer body clamp. The top ends of the first main upright and the second main upright are detachably connected to the top connecting seat, the bottom ends of the first main upright and the second main upright are detachably connected to the bottom connecting seat, and the bottom of the supporting upright is detachably connected to the stable connecting seat.

6. The transformer high-voltage direct output line device as described in claim 5, characterized in that, The bottom connecting seat and the top connecting seat are disposed on the side of the corresponding first main body or the second main body, and an adjustment plate is provided between the bottom connecting seat and the top connecting seat and the corresponding first main body or the second main body.

7. The transformer high-voltage direct output line device as described in claim 6, characterized in that, The connecting bracket also includes a wiring rod, which is configured as an L-shaped rod. The horizontal section of the wiring rod is detachably connected to the transformer body clamp. The bottom end of the vertical section of the wiring rod is detachably provided with a terminal plate. One end of the high-voltage lead is connected to the bushing through the terminal plate.

8. A method of using the transformer high-voltage direct output line device as described in claim 7, characterized in that, Including the following steps: S1, the fixing frame is laid flat, and the L-shaped pressure equalization component and the pressure equalization ball are fixedly installed on the fixing frame; S2, the bottom connecting seat, the top connecting seat and the stable connecting seat are installed on the transformer body clamp; S3, lift and flip the fixed frame to form a vertical state, move the fixed frame to the side of the transformer body, insert the high voltage lead into the L-shaped voltage equalization assembly and the voltage equalization ball, pre-install the fixed bracket and the connecting bracket, and connect the high voltage lead to the middle outlet; S4, set the wiring rod to simulate the position of the bushing, and adjust the position of the L-shaped equalizing component and the equalizing ball based on the wiring rod; S5, crimp the high-voltage lead to the terminal block; S6, Install the bushing on the riser seat on the transformer tank, and press the bushing to the terminal block.

9. The method of use as described in claim 8, characterized in that, In step S4, the connection positions of the fixing frame, the bottom connecting seat, the top connecting seat, and the stabilizing connecting seat are adjusted by the adjusting plate, and the connection state of the first clamp and the first clamp is adjusted. The verticality of the L-shaped pressure equalizing component and the pressure equalizing ball, the concentricity of the horizontal section of the L-shaped pressure equalizing component and the middle outlet line, and the concentricity of the pressure equalizing ball and the sleeve are confirmed.

10. The method of use as described in claim 8, characterized in that, In step S6, before installing the sleeve, the concentricity between the center of the support flange of the riser and the equalizing ball is measured using a plumb line to ensure that the concentricity deviation is ±10mm.

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