CN214476802U - Transformer with post insulator mounting bracket - Google Patents
Transformer with post insulator mounting bracket Download PDFInfo
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- CN214476802U CN214476802U CN202120316781.0U CN202120316781U CN214476802U CN 214476802 U CN214476802 U CN 214476802U CN 202120316781 U CN202120316781 U CN 202120316781U CN 214476802 U CN214476802 U CN 214476802U
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- transformer
- post insulator
- mounting bracket
- support
- flange
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Abstract
The utility model relates to an electric power construction technical field, a take transformer of post insulator installing support sets up the support mounting space between the fin group of low-voltage side in being located the transformer, the support mounting space is used for placing the installing support, the installing support is door type frame, includes a pair of stand promptly, sets up in the post insulator mounting panel of stand top, and a pair of stand is located single fin group both sides respectively. The installation support avoids the problem of contact between the post insulator and the transformer body and the radiator, completely avoids the situation that oil leakage or even fracture occurs to the radiating fins or the oil pipes caused by vibration and stress, and is convenient to install and disassemble.
Description
Technical Field
The utility model relates to an electric power construction technical field, in particular to insulator installing support.
Background
The transformer is the most core electrical equipment of the transformer substation, and plays a significant role in the transformer substation. In the installation process of the transformer, the busbar led out from the middle and low voltage sides of the transformer is often supported and led out through the post insulator, the post insulator for supporting is often directly fixed on a radiating fin of the transformer, the transformer is used as coil equipment, slight vibration is inevitably generated during operation, vibration is transmitted to the busbar and the post insulator and then resonates with the radiating fin, the welding part of the radiating fin, an oil pipe and a body is directly influenced, cracks or even fracture are generated in severe cases, oil leakage of the transformer is directly caused, and stable operation of the transformer is seriously influenced. Fig. 1, 2, and 3 show typical mounting methods of 35kV, 110kV, and 330kV transformers, respectively. The post insulator of the lead-out part is directly fixed on the radiating fin of the transformer. In summary, in handbook for prevention and treatment of general problems in transmission and transformation engineering (2019), it is stated that the busbar post insulator should not be directly fixed on the radiator in order to prevent quality accidents such as oil leakage caused by the stress on the radiator fin. Therefore, the design consideration provides a novel mounting structure of the bus bar post insulator led out from the low-voltage side of the transformer, and the problems are completely avoided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a take post insulator's installing support's transformer can avoid female post insulator snap-on at the radiator of arranging. In order to solve the problem, the utility model adopts the following technical scheme:
the transformer with the post insulator mounting bracket comprises a transformer body and is characterized in that a bracket mounting gap is formed between cooling fin groups on the low-voltage side in the transformer body and used for placing the mounting bracket, the mounting bracket is a door-shaped frame and comprises a pair of stand columns and a post insulator mounting plate arranged above the stand columns, and the stand columns are respectively located on two sides of each cooling fin group.
Preferably, the bracket mounting clearance is about 400 mm. If too wide, then can lead to the transformer substation appearance grow, main transformer oil pool, prevent that size such as hot wall all need enlarge, when influencing the engineering volume, probably influence the electrical layout scheme, influence greatly.
Preferably, the stand column is made of seamless steel tubes, the mounting plate is made of channel steel, and the channel steel is provided with a post insulator mounting hole.
Preferably, if the two-stage post insulators need to be installed in the actual installation process, a second portal frame is further arranged in the extension direction of the busbar.
Preferably, in order to fix the door-shaped frames more stably, the upper ends of the two sides of the two door-shaped frames are connected with each other by connecting rods to form a stool-shaped support.
Furthermore, a flange plate is arranged at the bottom of the upright post. Correspondingly, the matched flange matched with the flange plate arranged on the upright post is fixed on the ground by concrete during construction, and only the flange plate of the mounting bracket is fixedly connected with the matched flange which is fixed in advance by bolts during use.
Further, the lower end of the flange plate is provided with an installation pipe coaxial with the stand column, the matching flange is in a circular ring shape, the inner diameter of the circular ring of the matching flange is matched with the installation pipe, and during assembly, the installation pipe is inserted into the matching flange.
To sum up, the utility model discloses a technical scheme have following beneficial effect:
1. the transformer manufacturer does not need to weld the supporting piece of the post insulator on the transformer body or the radiator, thereby ensuring the manufacturing process and the attractiveness of the transformer.
2. Only small foundations of the stool type supports or the door type support are manufactured on site, and the small foundations and the transformer body foundation can be synchronously implemented, so that the workload is small.
3. The welding of the transformer body after equipment arrives at the scene, which is caused by the fact that a manufacturer neglects to set a supporting piece sometimes, is avoided, the process and the attractiveness can not be guaranteed, and the construction unit is not willing to implement the welding on the equipment body or the radiator.
4. The on-site building block type lap joint mode is convenient and quick, the process is attractive, the grounding of the support is convenient, the flange-connected support is convenient to disassemble and utilize, and the cost is not increased.
The bench type support or the portal frame type support avoids the fact that the post insulators are not in contact with the transformer body and the radiator, the situation that oil leakage or even breakage of radiating fins or oil pipes occurs due to vibration and stress is completely avoided, and the provisions that a national grid company manual for general prevention and control of transmission and transformation project quality (2019 edition) and the like, in order to prevent quality accidents such as oil leakage and the like caused by stress of radiator fins, the bus bar post insulators are not directly fixed on the radiator are met.
Drawings
Fig. 1 shows a typical installation of a 35kV transformer.
Fig. 2 shows a typical installation of a 110kV transformer.
Fig. 3 shows a typical installation of a 330kV transformer.
Fig. 4 is a schematic structural diagram of an embodiment of the present invention.
Fig. 5 is a schematic structural view of a mounting bracket according to another embodiment of the present invention.
Fig. 6 is a schematic structural view of a mounting bracket according to another embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Example (b):
the transformer with the mounting bracket for the post insulator comprises a transformer body and is characterized in that a bracket mounting gap is formed between cooling fin groups on the low-voltage side in the transformer body, the bracket mounting gap is used for placing a mounting bracket 103, the mounting bracket 103 is a door-shaped frame and comprises a pair of stand columns 1 and a post insulator mounting plate 2 arranged above the stand columns 1, and the stand columns are respectively located on two sides of each cooling fin group.
The bracket mounting gap is about 400 mm. If this size is too wide, then can lead to the transformer substation appearance grow, the size such as main transformer oil sump, prevent hot wall all need enlarge, when influencing the engineering volume, probably influence the electrical layout scheme, the influence is great.
Seamless steel pipes are selected for use as the stand columns, channel steel is adopted as the post insulator mounting plates 2, and post insulator mounting holes are formed in the channel steel.
If the two-stage post insulator 101 needs to be installed in the actual installation process, a door-shaped frame is further arranged in the extension direction of the busbar as a second door-shaped frame.
Preferably, in order to fix the door frames more stably, the connecting rods 3 are used to connect the upper ends of the two sides of the two door frames to each other, so as to form a "stool-shaped" bracket as the mounting bracket 103.
Furthermore, a flange 8 is arranged at the bottom of the upright post. Correspondingly, the matched flange matched with the flange plate arranged on the upright post 1 is fixed on the ground by concrete during construction, and only the flange plate of the mounting bracket is fixedly connected with the matched flange which is fixed in advance by bolts during use.
Claims (7)
1. The utility model provides a take post insulator installing support's transformer, includes the transformer, its characterized in that: the support mounting gap is arranged between the radiating fin groups on the low-voltage side of the transformer and used for placing the mounting support, the mounting support is a door-shaped frame and comprises a pair of stand columns and a post insulator mounting plate arranged above the stand columns, and the stand columns are respectively arranged on two sides of a single radiating fin group.
2. The transformer with post insulator mounting bracket of claim 1, wherein: the bracket mounting gap is 400 mm.
3. The transformer with post insulator mounting bracket of claim 1, wherein: seamless steel pipes are selected for use as the stand columns, channel steel is adopted as the mounting plates, and post insulator mounting holes are formed in the channel steel.
4. The transformer with post insulator mounting bracket of claim 1, wherein: and a second portal frame is arranged in the extension direction of the busbar.
5. The transformer with post insulator mounting bracket of claim 4, wherein: the upper ends of the second door-shaped frame and the door-shaped frame are connected with each other through a connecting rod to form a mounting bracket.
6. The transformer with post insulator mounting bracket of claim 1, wherein: the bottom of the upright post is provided with a flange plate, and a corresponding matched flange matched with the flange plate arranged on the upright post is fixed on the ground by concrete during construction.
7. The transformer with post insulator mounting bracket of claim 6, wherein: the ring flange lower extreme is provided with the installation pipe coaxial with the stand, and the cooperation flange is the ring form, and the ring internal diameter of cooperation flange and installation pipe phase-match, during the assembly, the installation pipe inserts the cooperation flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120316781.0U CN214476802U (en) | 2021-02-04 | 2021-02-04 | Transformer with post insulator mounting bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120316781.0U CN214476802U (en) | 2021-02-04 | 2021-02-04 | Transformer with post insulator mounting bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214476802U true CN214476802U (en) | 2021-10-22 |
Family
ID=78117759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120316781.0U Active CN214476802U (en) | 2021-02-04 | 2021-02-04 | Transformer with post insulator mounting bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214476802U (en) |
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2021
- 2021-02-04 CN CN202120316781.0U patent/CN214476802U/en active Active
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