CN216250311U - 110kV vehicle-mounted transformer - Google Patents
110kV vehicle-mounted transformer Download PDFInfo
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- CN216250311U CN216250311U CN202122594368.3U CN202122594368U CN216250311U CN 216250311 U CN216250311 U CN 216250311U CN 202122594368 U CN202122594368 U CN 202122594368U CN 216250311 U CN216250311 U CN 216250311U
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- oil tank
- transformer
- voltage
- tank
- phase line
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- 238000009413 insulation Methods 0.000 claims abstract description 20
- 230000035939 shock Effects 0.000 claims abstract description 15
- 230000007935 neutral effect Effects 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002788 crimping Methods 0.000 abstract description 3
- 239000003822 epoxy resin Substances 0.000 description 12
- 229920000647 polyepoxide Polymers 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a 110kV vehicle-mounted transformer, and belongs to the technical field of transformers. The technical scheme is as follows: the wall (3) of the oil tank adopts a structure with a wide high-pressure side (6) and a narrow low-pressure side (8), the oil tank is formed by combining a lower oil tank (1) and an upper oil tank (2), and the upper oil tank adopts a stepped structure with a high body side (9) and a low on-load tap-changer side (10); the high-voltage lifting seat (11) is obliquely welded on the side wall of the oil tank, and the high-voltage neutral point lifting seat (12) is welded on the on-load tap-changer side of the upper oil tank. The high-voltage phase line insulation grade of transformer is 110kV, and the high-voltage phase line is depended on the tank wall of oil tank and is arranged, and for guaranteeing the rationality of overall arrangement, the high-voltage head end phase line is whole to be through wire clamp (5) centre gripping on the tank wall, along with the good back crimping of coil head end of oil tank assembly again. The external dimension and the weight of the utility model can meet the vehicle-mounted transportation requirement, and the internal and external structures can meet the shock resistance requirement.
Description
Technical Field
The utility model relates to a 110kV vehicle-mounted transformer, and belongs to the technical field of transformers.
Background
At present, with the rapid development of economy and power systems in China, higher requirements on power supply continuity and reliability are provided, and a mobile substation becomes an important choice for guaranteeing the reliability of power supply. The mobile substation is mainly used for mining industry, large-scale performance and emergency rescue. The mobile substation can quickly make up for regional and periodic insufficient power supply on the premise of not occupying actual land resources. The vehicle-mounted transformer is main electrical equipment of the mobile substation, and has the characteristics of small volume, light weight, strong shock resistance, flexible transportation and the like. However, since the on-board transformer is mounted on a flat car, the overall size and weight of the transformer are very limited, and the transformer has high requirements on the shock resistance, and the transformer in the prior art cannot meet the technical requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a 110kV vehicle-mounted transformer, which has the advantages that the overall dimension and the weight can meet the vehicle-mounted transportation requirements, the internal and external structures can meet the shock resistance requirement, and the technical problems in the prior art are solved.
The technical scheme of the utility model is as follows:
an oil tank of a 110kV vehicle-mounted transformer adopts a bell jar type structure, the wall of the oil tank adopts a structure with a wide high-voltage side and a narrow low-voltage side, the oil tank is formed by combining a lower oil tank and an upper oil tank, and the upper oil tank adopts a stepped structure with a high body side and a low on-load tap-changer side; the high-voltage lifting seat is obliquely welded on the side wall of the oil tank, and the high-voltage neutral point lifting seat is welded on the on-load tap-changer side of the upper-section oil tank.
The high-voltage phase line insulation grade of transformer is 110kV, and the high-voltage phase line is depended on the tank wall of oil tank and is arranged, and for guaranteeing the rationality of overall arrangement, the high-voltage head end phase line is whole to press from both sides the centre gripping through the wire on the tank wall, with coil head end crimping again after the oil tank is assembled well.
In order to ensure the anti-seismic performance of a product, an upper iron yoke and a lower iron yoke of an iron core of the transformer are clamped by an upper clamping piece and a lower clamping piece of a steel structure and are fixed up and down by a pulling plate, a pad foot is arranged at the bottom of the lower iron yoke, and the whole iron core of the transformer is of a rigid structure; the top of the iron core is positioned with the top of the upper oil tank, and the lower clamping piece of the iron core is connected with the lower oil tank by four positioning nails; a shock absorption pad is additionally arranged between the pad foot and the oil tank, so that the vertical vibration of the transformer during transportation is reduced.
The sleeve of the transformer is an epoxy resin dry sleeve, the main insulation of the sleeve is composed of corrugated cable paper and an aluminum foil voltage-sharing electrode, and the sleeve is impregnated with epoxy resin and then cured to form a capacitor core; the outer insulation of the sleeve adopts a composite insulation outer sleeve, the bending strength is improved to the dynamic requirement on the strength of the sleeve when a vehicle accelerates, and the requirement on the anti-seismic performance is met.
The 110kV vehicle-mounted transformer manufactured by the utility model meets the requirements of vehicle-mounted transportation, has strong shock resistance, and completely meets the use requirements of users.
The assembly method of the utility model comprises the following steps: the oil tank of the transformer adopts a bell jar type structure, the wall of the oil tank adopts a structure with wide high-pressure side and narrow low-pressure side, the oil tank is formed by combining a lower oil tank and an upper oil tank, and the upper oil tank adopts a stepped structure with high body side and low on-load tap-changer side; the high-pressure lifting seat is welded on the side wall of the oil tank in an inclined manner, and the high-pressure neutral point lifting seat is welded on the lower end side of the upper-section oil tank; the insulation grade of the high-voltage phase line is 110kV, the diameter of the high-voltage phase line is larger after the high-voltage phase line is wrapped and insulated in consideration of the requirement of the insulation distance, and the configuration work of the high-voltage phase line is more difficult than that of a conventional product, so that the high-voltage phase line is arranged by being attached to the tank wall, is clamped by using a wire clamp fixed on the tank wall, and is pressed with the head end of the coil after being assembled with the oil tank, and the reasonability of the layout is ensured; the upper and lower yokes of the iron core are clamped by upper and lower clamping pieces of a steel structure and are fixed up and down by a pulling plate, PET binding tapes are used on the yokes and the core columns to ensure that the transformer iron core is uniformly clamped, pad feet are arranged at the bottom of the lower yoke, and positioning devices are arranged at two ends of the lower clamping piece, so that the whole transformer iron core is of a rigid structure and can completely bear the impact of earthquake acceleration on the iron core; the top of the iron core is positioned with the top of the oil tank, and the iron core lower clamp is connected with the lower oil tank by four positioning nails, so that the iron core and the oil tank cannot be displaced when the transformer body is impacted by external earthquake force; the shock absorption pad is additionally arranged between the pad foot and the oil tank, so that the vertical vibration of the transformer during transportation is reduced, and the requirement on the shock resistance is met.
The transformer bushing is an epoxy resin dry bushing; the natural vibration frequency of the conventional transformer bushing is mostly within the frequency range of seismic waves, the possibility of resonance with the earthquake is high, the dynamic response of the transformer bushing is also high, and therefore the weak link of the transformer bushing for resisting the earthquake is the bushing. The main insulation of the epoxy resin dry-type sleeve is composed of corrugated cable paper and an aluminum foil voltage-sharing electrode, and the capacitor core is formed by impregnating epoxy resin and then curing; the outer insulation of the sleeve adopts a composite insulation outer sleeve, and the bending strength is improved to meet the dynamic requirement on the strength of the sleeve when a vehicle accelerates. The epoxy resin dry-type sleeve pipe is adopted, and the requirements of the technology of the utility model on the aspect of anti-seismic performance are met.
The utility model has the beneficial effects that: the overall dimension and the weight can meet the requirements of vehicle-mounted transportation, and the internal and external structures can meet the requirements of shock resistance.
Drawings
FIG. 1 is a schematic view of a tank wall of an embodiment of the present invention;
FIG. 2 is a schematic view of an upper oil tank according to an embodiment of the present invention;
FIG. 3 is a front view of the entire fuel tank of the embodiment of the present invention;
FIG. 4 is a top plan view of the fuel tank of the embodiment of the present invention as a whole;
FIG. 5 is a right side elevational view of the fuel tank in its entirety in accordance with an embodiment of the present invention;
FIG. 6 is a front view of a high voltage lead of an embodiment of the present invention;
FIG. 7 is a top view of a high voltage lead according to an embodiment of the present invention;
FIG. 8 is a side view of a high voltage lead of an embodiment of the present invention;
in the figure: the device comprises a lower oil tank 1, an upper oil tank 2, a tank wall 3, a high-voltage phase line 4, a wire clamp 5, a high-voltage side 6, an oil tank central line 7, a low-voltage side 8, a device body side 9, an on-load tap-changer side 10, a high-voltage rising seat 11 and a high-voltage neutral point rising seat 12.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings.
An oil tank of a 110kV vehicle-mounted transformer adopts a bell jar type structure, the wall 3 of the oil tank adopts a structure with a 6-wide high-voltage side and a 8-narrow low-voltage side, the oil tank is formed by combining a lower oil tank 1 and an upper oil tank 2, and the upper oil tank 2 adopts a step structure with a 9-high body side and a 10-low on-load tap-changer side; the high-voltage lifting seat 11 is welded on the side wall of the oil tank in an inclined mode, and the high-voltage neutral point lifting seat 12 is welded on the on-load tap-changer side 10 of the upper-section oil tank 2.
The high-voltage phase line insulation grade of transformer is 110kV, and the high-voltage phase line is depended on the tank wall 3 of oil tank and is arranged, and for guaranteeing the rationality of overall arrangement, the high-voltage head end phase line is whole to be pressed from both sides 5 centre gripping through the wire on tank wall 3, and with the coil head end crimping after well being assembled along with the oil tank.
In order to ensure the anti-seismic performance of a product, an upper iron yoke and a lower iron yoke of an iron core of the transformer are clamped by an upper clamping piece and a lower clamping piece of a steel structure and are fixed up and down by a pulling plate, a pad foot is arranged at the bottom of the lower iron yoke, and the whole iron core of the transformer is of a rigid structure; the top of the iron core is positioned with the top of the upper oil tank 2, and the lower clamping piece of the iron core is connected with the lower oil tank 1 by four positioning nails; a shock absorption pad is additionally arranged between the pad foot and the oil tank, so that the vertical vibration of the transformer during transportation is reduced.
The sleeve of the transformer is an epoxy resin dry sleeve, the main insulation of the sleeve is composed of corrugated cable paper and an aluminum foil voltage-sharing electrode, and the sleeve is impregnated with epoxy resin and then cured to form a capacitor core; the outer insulation of the sleeve adopts a composite insulation outer sleeve, the bending strength is improved to the dynamic requirement on the strength of the sleeve when a vehicle accelerates, and the requirement on the anti-seismic performance is met.
The 110kV vehicle-mounted transformer manufactured by the utility model meets the requirements of vehicle-mounted transportation, has strong shock resistance, and completely meets the use requirements of users.
The assembly method of the utility model comprises the following steps:
the oil tank of the transformer adopts a bell jar type structure, the tank wall 3 of the oil tank adopts a structure with a wide high-pressure side 6 and a narrow low-pressure side 8, the oil tank is formed by combining a lower oil tank 1 and an upper oil tank 2, and the upper oil tank 2 adopts a stepped structure with a high body side 9 and a low on-load tap-changer side 10; the high-pressure lifting seat 11 is obliquely welded on the side wall of the oil tank, and the high-pressure neutral point lifting seat is welded on the lower end side of the upper-section oil tank; the insulation grade of the high-voltage phase line is 110kV, the diameter of the high-voltage phase line is larger after the high-voltage phase line is wrapped and insulated in consideration of the requirement of the insulation distance, and the configuration work of the high-voltage phase line is more difficult than that of a conventional product, so that the high-voltage phase line 4 is arranged by attaching to the tank wall 3, is clamped by using the wire clamp 5 fixed on the tank wall 3, and is pressed with the head end of the coil after being assembled with the oil tank, and the reasonability of the layout is ensured; the upper and lower yokes of the iron core are clamped by upper and lower clamping pieces of a steel structure and are fixed up and down by a pulling plate, PET binding tapes are used on the yokes and the core columns to ensure that the transformer iron core is uniformly clamped, pad feet are arranged at the bottom of the lower yoke, and positioning devices are arranged at two ends of the lower clamping piece, so that the whole transformer iron core is of a rigid structure and can completely bear the impact of earthquake acceleration on the iron core; the top of the iron core is positioned with the top of the oil tank, and the iron core lower clamp is connected with the lower oil tank by four positioning nails, so that the iron core and the oil tank cannot be displaced when the transformer body is impacted by external earthquake force; the shock absorption pad is additionally arranged between the pad foot and the oil tank, so that the vertical vibration of the transformer during transportation is reduced, and the requirement on the shock resistance is met.
The transformer bushing is an epoxy resin dry bushing; the natural vibration frequency of the conventional transformer bushing is mostly within the frequency range of seismic waves, the possibility of resonance with the earthquake is high, the dynamic response of the transformer bushing is also high, and therefore the weak link of the transformer bushing for resisting the earthquake is the bushing. The main insulation of the epoxy resin dry-type sleeve is composed of corrugated cable paper and an aluminum foil voltage-sharing electrode, and the capacitor core is formed by impregnating epoxy resin and then curing; the outer insulation of the sleeve adopts a composite insulation outer sleeve, and the bending strength is improved to meet the dynamic requirement on the strength of the sleeve when a vehicle accelerates. The epoxy resin dry-type sleeve pipe is adopted, and the requirements of the technology of the utility model on the aspect of anti-seismic performance are met.
The 110kV vehicle-mounted transformer manufactured by the utility model has the following appearance size: the length multiplied by the width multiplied by the height =7.35 multiplied by 3 multiplied by 3.2 (meters), the total mass is 31.8 tons, the requirement of vehicle-mounted transportation is met, meanwhile, the shock resistance of the product is strong, and the use requirement of a user is completely met.
Claims (3)
1. The utility model provides a 110kV vehicle-mounted transformer which characterized in that: the oil tank of the transformer adopts a bell jar type structure, the tank wall (3) of the oil tank adopts a structure with a wide high-pressure side (6) and a narrow low-pressure side (8), the oil tank is formed by combining a lower oil tank (1) and an upper oil tank (2), and the upper oil tank (2) adopts a step type structure with a high body side (9) and a low on-load tap-changer side (10); the high-voltage lifting seat (11) is obliquely welded on the side wall of the oil tank, and the high-voltage neutral point lifting seat (12) is welded on the on-load tap-changer side (10) of the upper-section oil tank (2).
2. The 110kV vehicle-mounted transformer of claim 1, wherein: the high-voltage phase line insulation grade of the transformer is 110kV, the high-voltage phase line is attached to the tank wall (3) of the oil tank and is arranged, and the high-voltage head end phase line is clamped on the tank wall (3) through the wire clamp (5) and is well assembled with the oil tank and then is in compression joint with the coil head end.
3. A 110kV on-board transformer according to claim 1 or 2, characterized in that: the upper and lower iron yokes of the iron core of the transformer are clamped by the upper and lower clamping pieces of a steel structure and are fixed up and down by a pulling plate, the bottom of the lower iron yoke is provided with a pad foot, and the whole iron core of the transformer is of a rigid structure; the top of the iron core is positioned with the top of the upper oil tank (2), and the lower clamping piece of the iron core is connected with the lower oil tank (1) by four positioning nails; a shock pad is additionally arranged between the pad foot and the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594368.3U CN216250311U (en) | 2021-10-27 | 2021-10-27 | 110kV vehicle-mounted transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594368.3U CN216250311U (en) | 2021-10-27 | 2021-10-27 | 110kV vehicle-mounted transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216250311U true CN216250311U (en) | 2022-04-08 |
Family
ID=80989086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122594368.3U Active CN216250311U (en) | 2021-10-27 | 2021-10-27 | 110kV vehicle-mounted transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216250311U (en) |
-
2021
- 2021-10-27 CN CN202122594368.3U patent/CN216250311U/en active Active
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