A UHV transformer structure with improved VFTO tolerance

Abstract

The invention discloses a UHV transformer structure with improved VFTO tolerance, comprising a UHV transformer body and an anti-seismic mechanism; the anti-seismic mechanism is arranged on the UHV transformer body; the anti-seismic mechanism comprises an elastic component; the elastic component comprises a bottom plate, a fixed block, a movable block, a telescopic rod, a fixed plate and a spring; the bottom plate is fixedly arranged on the UHV transformer body; at least one fixed block is fixedly arranged on the bottom plate; four movable blocks are arranged around the fixed block in a ring array; one end of the telescopic rod is fixedly connected to the movable block; the fixed plate is fixedly connected to the other end of the telescopic rod; the spring is sleeved on the telescopic rod, and the two ends of the spring are respectively fixedly connected to the movable block and the fixed plate. The UHV transformer structure with improved VFTO tolerance has a simple and reasonable structure, a clever design, can disperse and buffer the vibration force, improves the anti-seismic property of the UHV transformer body, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, and in particular to an ultra-high voltage transformer structure with improved VFTO tolerance capability. Background Art

[0002] Ultra-high voltage transformer refers to a transformer with a voltage level of 1000kV and above. Ultra-high voltage transformer is a key equipment used in ultra-high voltage transmission systems. It is mainly used to connect transmission lines and power equipment of different voltage levels to ensure the stable operation of the power system.

[0003] For example, the UHV transformer provided by the Chinese invention patent with publication number CN202839271U includes a main transformer and a voltage regulating device, and the voltage regulating device includes a voltage regulating transformer and a compensating transformer. The extension line of the center line of the core column of the voltage regulating transformer intersects with the projection of the center line of the side yoke of the compensating transformer on the horizontal plane. The center line of the core column of the voltage regulating transformer is parallel to the center line of the core column of the main transformer in the horizontal direction. The center line of the core column of the voltage regulating transformer and the center line of the core column of the main transformer are located on the same side of the center line of the side yoke of the compensating transformer. The lead bushings for connecting the main transformer and the voltage regulating device are respectively arranged on both sides adjacent to each other of the main transformer and the voltage regulating device. The present invention can effectively simplify wiring, reduce space and reduce costs.

[0004] At present, during the use of UHV transformers on the market, their ability to withstand VFTO will be improved. However, most of the existing UHV transformers are fixedly installed on concrete, which leads to poor seismic resistance of the UHV transformers. They are easily damaged by external factors (such as earthquakes), thus affecting the use effect of the UHV transformers. Summary of the invention

[0005] The object of the present invention is to provide a UHV transformer structure with improved VFTO tolerance capability, so as to solve the problem of poor seismic resistance mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a UHV transformer structure with improved VFTO tolerance capability, comprising a UHV transformer body and an anti-seismic mechanism; the anti-seismic mechanism is arranged on the UHV transformer body; the anti-seismic mechanism comprises an elastic component; the elastic component comprises a bottom plate, a fixed block, a movable block, a telescopic rod, a fixed plate and a spring; the bottom plate is fixedly mounted on the UHV transformer body; at least one fixed block is fixedly mounted on the bottom plate; four movable blocks are arranged in a circular array around the fixed block; one end of the telescopic rod is fixedly connected to the movable block; the fixed plate is fixedly connected to the other end of the telescopic rod; the spring is sleeved on the telescopic rod, and the two ends of the spring are respectively fixedly connected to the movable block and the fixed plate.

[0007] Preferably, four inclined surfaces A are provided on the fixing block.

[0008] Preferably, an inclined surface B is provided on the movable block, and the inclined surface B is in sliding contact with the inclined surface A.

[0009] Preferably, the anti-seismic mechanism also includes a sliding assembly; the sliding assembly includes a base and a receiving groove; the base is arranged below the UHV transformer body; a receiving groove is provided in the base, and the fixing plate is fixedly connected to the inner wall of the receiving groove.

[0010] Preferably, the bottom plate is slidably matched with the receiving groove, and the top surface of the bottom plate is in contact with the top wall inside the receiving groove.

[0011] Preferably, the sliding assembly further comprises a water leakage hole; and a plurality of water leakage holes are provided in the accommodating groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention sets an anti-seismic mechanism. When the UHV transformer body is subjected to external vibration, the UHV transformer body will move downward, so that the bottom plate drives the fixed block to move downward, so that the inclined surface A on the fixed block squeezes the inclined surface B on the movable block, and the four movable blocks move away from each other, so that the four movable blocks can disperse the vibration force exerted on the UHV transformer body, so that the telescopic rod and the spring are forced to shrink, so that the spring can buffer the dispersed vibration force, so as to improve the anti-seismic property of the UHV transformer body. Compared with the prior art, the present invention has a simple and reasonable structure and a clever design, can disperse and buffer the vibration force, and improves the anti-seismic property of the UHV transformer body.

[0014] 2. The present invention sets a sliding component to facilitate limiting the position of the UHV transformer body, so that the UHV transformer body can only move in the vertical direction, thereby ensuring the stability of the position of the UHV transformer body, and the water leakage hole can prevent water from accumulating in the receiving groove, thereby improving the practicality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an assembly diagram of the high voltage lead wire part of the overall structure of Example 1;

[0016] Figure 2 It is an assembly diagram of a high-voltage lead wave-blocking component 1 of the overall structure of Example 1;

[0017] Figure 3 A schematic diagram of the winding of the first end of the high-voltage winding of the overall structure of Example 1;

[0018] Figure 4 This is a schematic diagram of the overall structure of Example 2;

[0019] Figure 5 This is a cross-sectional view of the overall structure of Example 2;

[0020] Figure 6 This is a cross-sectional view of the base structure of Example 2;

[0021] Figure 7 This is a schematic diagram of the partial structural decomposition of Example 2.

[0022] In the figure:

[0023] 1. High-voltage lead wave-blocking assembly; 2. Nanocrystalline magnet; 3. Parallel resistor body 3; 4. Parallel resistor insulation; 5. Parallel resistor contact; 6. Wave-blocking assembly support; 7. Oil guide hole; 8. High-voltage lead copper tube; 9. High-voltage lead connector; 10. Soft copper stranded wire; 11. Aluminum equalizing tube; 12. High-voltage winding working line; 13. High-voltage winding shielding line; 14. Shielding connection line; 15. Working line entanglement connection line; 16. High-voltage head end; 20. UHV transformer body; 30. Anti-seismic mechanism; 40. Elastic assembly; 50. Sliding assembly; 4001. Bottom plate; 4002. Fixed block; 4003. Movable block; 4004. Telescopic rod; 4005. Fixed plate; 4006. Spring; 5001. Base; 5002. Receiving groove; 5003. Leakage hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] See also Figures 1 to 3The present invention provides a technical solution: a UHV transformer structure with improved VFTO tolerance, including a high-voltage lead wave-blocking component 1, the high-voltage lead wave-blocking component 1 includes a nanocrystalline magnet 2, a parallel resistor body 3, a parallel resistor insulation 4, a parallel resistor contact 5, a wave-blocking component support 6, an oil guide hole 7, a high-voltage lead copper rod 8, and a conventional detachable lead high-voltage lead connector 9, a soft copper stranded wire 10, an aluminum equalizing tube 11, etc. The implementation method is that the structure adds a section of high-voltage lead wave-blocking component 1 to the soft copper stranded wire 10 in the traditional detachable lead aluminum equalizing tube 11, and the wave-blocking component uses a high-voltage lead copper tube to replace the soft copper stranded wire 10 for current carrying, and the copper tube has multiple sections of nanocrystalline magnets 2 connected in series, and a parallel resistor body 3 is set through the center of each section of the nanocrystalline magnet 2, and the parallel resistor body 3 is connected in parallel with the magnet section through the contacts at both ends. The high-voltage lead wave-blocking component 1 is provided with an insulating support, which can be conveniently installed in the voltage-equalizing tube of the high-voltage detachable lead, and ensures that the center of the lead is consistent with the center of the voltage-equalizing tube. The support is provided with oblong holes for conducting oil flow, and the holes are arranged inwardly and outwardly in a staggered manner along the width.

[0027] This improved high-voltage winding head end winding method, for the high-voltage winding head end, every four cakes are a unit, including high-voltage winding working wire 12, high-voltage winding shielding wire 13, shielding connection wire 14, working wire tangled connection wire 15, high-voltage head end outlet 16, etc. The implementation method is that the high-voltage winding head end is a unit with every four cakes, and is wound in pairs along the axial direction of the winding, and the axially staggered wire cakes are connected on the inner diameter side of the winding by tangled connection wires; along the radial direction of the winding, it is a four-section inserted shielding winding, and the shielding depth of each unit shielding wire decreases from the head end to the back.

[0028] Embodiment 2:

[0029] See also Figures 3 to 7The present invention provides another technical solution: a UHV transformer structure with improved VFTO tolerance, comprising a UHV transformer body 20 and an anti-seismic mechanism 30; the anti-seismic mechanism 30 is arranged on the UHV transformer body 20; the anti-seismic mechanism 30 comprises an elastic component 40; the elastic component 40 comprises a bottom plate 4001, a fixed block 4002, a movable block 4003, a telescopic rod 4004, a fixed plate 4005 and a spring 4006; the bottom plate 4001 is fixed on the UHV transformer body 20; the two fixed blocks 4002 are linear The array is fixed on the bottom plate 4001; four movable blocks 4003 are arranged in a circular array around the fixed block 4002; one end of the telescopic rod 4004 is fixedly connected to the movable block 4003; the fixed plate 4005 is fixedly connected to the other end of the telescopic rod 4004; the spring 4006 is sleeved on the telescopic rod 4004, and the two ends of the spring 4006 are respectively fixedly connected to the movable block 4003 and the fixed plate 4005; four inclined surfaces A are arranged on the fixed block 4002; the movable block 4003 is provided with an inclined surface B, and the inclined surface B is in sliding contact with the inclined surface A.

[0030] The present invention is provided with a seismic resistance mechanism 30. When the UHV transformer body 20 is subjected to external vibration, the UHV transformer body 20 will move downward, so that the bottom plate 4001 drives the fixed block 4002 to move downward, so that the inclined surface A on the fixed block 4002 squeezes the inclined surface B on the movable block 4003, so that the four movable blocks 4003 move away from each other, so that the four movable blocks 4003 can disperse the vibration force exerted on the UHV transformer body 20, so that the telescopic rod 4004 and the spring 4006 are forced to shrink, so that the spring 4006 can buffer the dispersed vibration force, so as to improve the seismic resistance of the UHV transformer body 20. Compared with the prior art, the present invention has a simple and reasonable structure and a clever design, can disperse and buffer the vibration force, and improves the seismic resistance of the UHV transformer body 20.

[0031] As a preferred implementation scheme, the anti-seismic mechanism 30 also includes a sliding component 50; the sliding component 50 includes a base 5001, a receiving groove 5002 and a water leakage hole 5003; the base 5001 is arranged below the UHV transformer body 20; a receiving groove 5002 is provided in the base 5001, and the fixing plate 4005 is fixedly connected to the inner wall of the receiving groove 5002; the bottom plate 4001 is slidably matched with the receiving groove 5002, and the top surface of the bottom plate 4001 is in contact with the inner top wall of the receiving groove 5002; a plurality of water leakage holes 5003 are provided in the receiving groove 5002.

[0032] The present invention sets a sliding component 50 to facilitate limiting the position of the UHV transformer body 20, so that the UHV transformer body 20 can only move in the vertical direction, thereby ensuring the stability of the position of the UHV transformer body 20, and the leakage hole 5003 can prevent water from accumulating in the receiving groove 5002, thereby improving the practicality of the present invention.

[0033] Working principle: When the UHV transformer body 20 is subjected to external vibration, the UHV transformer body 20 will move downward, causing the bottom plate 4001 to slide downward in the receiving groove 5002, causing the fixed block 4002 to move downward, causing the inclined surface A on the fixed block 4002 to squeeze the inclined surface B on the movable block 4003, causing the four movable blocks 4003 to slide away from each other in the receiving groove 5002, so that the four movable blocks 4003 can disperse the vibration force exerted on the UHV transformer body 20, causing the telescopic rod 4004 and the spring 4006 to contract under force, so that the spring 4006 can buffer the dispersed vibration force, thereby improving the seismic resistance of the UHV transformer body 20, and the leakage hole 5003 provided can prevent water from accumulating in the receiving groove 5002.

[0034] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A UHV transformer structure with improved VFTO tolerance, characterized in that: The invention comprises an ultra-high voltage transformer body (20) and an anti-seismic mechanism (30); the anti-seismic mechanism (30) is arranged on the ultra-high voltage transformer body (20); the anti-seismic mechanism (30) comprises an elastic component (40); the elastic component (40) comprises a bottom plate (4001), a fixed block (4002), a movable block (4003), a telescopic rod (4004), a fixed plate (4005) and a spring (4006); the bottom plate (4001) is fixedly arranged on the ultra-high voltage transformer body (20); at least one The fixed block (4002) is fixedly arranged on the bottom plate (4001); the four movable blocks (4003) are arranged in a circular array around the fixed block (4002); one end of the telescopic rod (4004) is fixedly connected to the movable block (4003); the fixed plate (4005) is fixedly connected to the other end of the telescopic rod (4004); the spring (4006) is sleeved on the telescopic rod (4004), and the two ends of the spring (4006) are respectively fixedly connected to the movable block (4003) and the fixed plate (4005).

2. The UHV transformer structure for improving VFTO tolerance according to claim 1, characterized in that: Four inclined surfaces A are provided on the fixing block (4002).

3. The UHV transformer structure for improving VFTO tolerance according to claim 2, characterized in that: The movable block (4003) is provided with an inclined surface B, and the inclined surface B is in sliding contact with the inclined surface A.

4. The UHV transformer structure for improving VFTO tolerance according to claim 1, characterized in that: The anti-seismic mechanism (30) further comprises a sliding assembly (50); the sliding assembly (50) comprises a base (5001) and a receiving groove (5002); the base (5001) is arranged below the UHV transformer body (20); a receiving groove (5002) is provided in the base (5001), and the fixing plate (4005) is fixedly connected to the inner wall of the receiving groove (5002).

5. The UHV transformer structure for improving VFTO tolerance according to claim 4, characterized in that: The bottom plate (4001) is slidably matched with the receiving groove (5002), and the top surface of the bottom plate (4001) is in contact with the inner top wall of the receiving groove (5002).

6. The UHV transformer structure for improving VFTO tolerance according to claim 5, characterized in that: The sliding assembly (50) further comprises a water leakage hole (5003); a plurality of water leakage holes (5003) are provided in the receiving groove (5002).

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