CN202905413U - Chain-shaped pad for ultra high voltage transformer - Google Patents
Chain-shaped pad for ultra high voltage transformer Download PDFInfo
- Publication number
- CN202905413U CN202905413U CN 201220602089 CN201220602089U CN202905413U CN 202905413 U CN202905413 U CN 202905413U CN 201220602089 CN201220602089 CN 201220602089 CN 201220602089 U CN201220602089 U CN 201220602089U CN 202905413 U CN202905413 U CN 202905413U
- Authority
- CN
- China
- Prior art keywords
- cushion block
- chain
- insulating paper
- high voltage
- interval
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a chain-shaped pad for an ultra high voltage transformer. The chain-shaped pad comprises strip-type insulating paper and spacing pads uniformly distributed on the insulating paper, wherein the sections of the spacing pads are trapezoidal; trapezoidal grooves through which copper wires of a transformer coil can penetrate are formed between the spacing pads; and the spacing pads and the insulating paper are combined by hot-pressing through glue. The quality of the chain-shaped pad is improved, the spacing pads are not prone to fall off, and the coiling is convenient.
Description
Technical field
The utility model relates to electric insulation spare and manufactures field, particularly a kind of chain cushion block for super extra-high voltage transformer.
Background technology
The rated voltage of common EHV transformer is all at 350KV to 500KV, and the rated voltage of extra-high voltage transformer is all at 750KV with more than the 750KV.The saddle type cushion block that is used for super extra-high voltage transformer is arranged in the coil of transformer, copper cash to the coil of transformer plays spacer insulator, therefore, its insulation property are very large on the impact in useful life of transformer, guarantee that insulation property reach the requirement of withstand voltage of super extra-high voltage transformer, existing chain cushion block typically uses that the insulating paper material makes, the interval cushion block to be bonded in glue on the insulating paper of strip make, the easy cracking in this chain cushion block abutting edge, the interval cushion block falls down from insulating paper easily, affects its normal use, simultaneously, the interval cushion block be shaped as cuboid, coil is in the groove between the cuboid, coiling is inconvenient on the one hand, when coil position departs from the position of groove, can't enter in the groove, there is wedge angle in square cushion block on the other hand, punctures easily.
Summary of the invention
The purpose of this utility model is for the coiling of the existing chain cushion block for super extra-high voltage transformer described in the background technology inconvenient, and the problem of puncture occurs easily, a kind of chain cushion block that is used for super extra-high voltage transformer that can solve foregoing problems is provided.
The technical scheme that realizes the purpose of this utility model is as follows:
A kind of chain cushion block for super extra-high voltage transformer, it comprises the insulating paper and the interval cushion block that is evenly distributed on the insulating paper of strip, the cross section of interval cushion block is trapezoidal, be formed with between the cushion block of interval for the dovetail groove by the transformer coil copper cash, interval cushion block and insulating paper are by the glue hot binding together.
For the insulation property of the insulating part that improves transformer, the knuckle place of described interval cushion block is provided with chamfering.
Chain cushion block for super extra-high voltage transformer of the present utility model, the interval cushion block is that the insulating paper material is made, interval cushion block and insulating paper during hot pressing, will be placed on insulating paper and interval cushion block first that heating vacuumizes drying in the vacuum tank by the glue hot binding together, after the drying, cementing on joint face combines the two by hot pressing at last again, like this after the combination, interval cushion block and insulating paper combine together, are difficult for falling down from insulating paper.The cross section of interval cushion block is trapezoidal, during coiling, even copper cash does not have in groove, only need to stir copper cash it is entered in the groove, and is simple to operate, and, there is not wedge angle, improved the insulation property of chain cushion block, also made things convenient for the circulation of insulating oil.
Description of drawings
Fig. 1 is the structural representation that is used for the chain cushion block of super extra-high voltage transformer;
Fig. 2 is the end view of chain cushion block;
Among the figure, 1 is insulating paper, and 2 is the interval cushion block, and 3 is dovetail groove.
Embodiment
Below in conjunction with accompanying drawing 1 and Fig. 2 the utility model is carried out detailed illustrating:
Embodiment 1
A kind of chain cushion block for super extra-high voltage transformer as shown in Fig. 1 and Fig. 2, it comprises the insulating paper 1 and the interval cushion block 2 that is evenly distributed on the insulating paper of strip, the cross section of interval cushion block 2 is trapezoidal, be formed with between the interval cushion block 2 for the dovetail groove 3 by the transformer coil copper cash, interval cushion block 2 passes through the glue hot binding together with insulating paper 1.
For the insulation property of the insulating part that improves transformer, the knuckle place of described interval cushion block 2 is provided with chamfering.
Claims (2)
1. chain cushion block that is used for super extra-high voltage transformer, it is characterized in that: it comprises the insulating paper and the interval cushion block that is evenly distributed on the insulating paper of strip, the cross section of interval cushion block is trapezoidal, be formed with between the cushion block of interval for the dovetail groove by the transformer coil copper cash, interval cushion block and insulating paper are by the glue hot binding together.
2. the chain cushion block for super extra-high voltage transformer according to claim 1, it is characterized in that: the knuckle place of described interval cushion block is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602089 CN202905413U (en) | 2012-11-15 | 2012-11-15 | Chain-shaped pad for ultra high voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602089 CN202905413U (en) | 2012-11-15 | 2012-11-15 | Chain-shaped pad for ultra high voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905413U true CN202905413U (en) | 2013-04-24 |
Family
ID=48126051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602089 Expired - Fee Related CN202905413U (en) | 2012-11-15 | 2012-11-15 | Chain-shaped pad for ultra high voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905413U (en) |
-
2012
- 2012-11-15 CN CN 201220602089 patent/CN202905413U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |