CN2035527U - Gas insulation dry testing transformer - Google Patents
Gas insulation dry testing transformer Download PDFInfo
- Publication number
- CN2035527U CN2035527U CN 88201127 CN88201127U CN2035527U CN 2035527 U CN2035527 U CN 2035527U CN 88201127 CN88201127 CN 88201127 CN 88201127 U CN88201127 U CN 88201127U CN 2035527 U CN2035527 U CN 2035527U
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- Prior art keywords
- gas
- transformer
- testing transformer
- shell
- insulating
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Abstract
The utility model discloses a gas insulation dry testing transformer which is composed of an iron core, a primary winding, a secondary winding, a capacitor sleeve, a copper ball, etc. The main insulation of the gas insulation dry testing transformer is the SF6 or other insulating gas. In order to put the primary winding and the secondary winding seal in a sealed and insulating outer housing, the outer housing has a mesopore for the iron core passing, the outer housing is provided with a pressure gauge and an inflating bore, and the inside of the outer housing is filled with the insulating gas. The outer housing can be processed by the epoxy resin or other engineering plastic. The utility model has the advantages of small volume, light weight, convenient operation, non-pollution and fine insulation property. The gas insulation dry testing transformer can be used in the instrumentation needing the high voltage as the high voltage transformer.
Description
The utility model belongs to the testing transformer class in the special transformer, exactly is a kind of gas insulating dry testing transformer.
All electric equipment products or are in operation when giving anti-property test when delivery test, all are necessary to differentiate the reliability of its built-in electrical insulation, generally are with testing transformer the electric insulation medium to be carried out withstand voltage test.This testing transformer is gone over and is continued to use the oil immersed type structure now always, and a large amount of insulating oils is contained in the canister, and its volume and weight is increased greatly, and floor space is big, and difficult is used inconvenience.Some need the instrument and equipment of high pressure is X-ray machine, electrostatic machine etc., also adopts the high-tension transformer of oil immersed type mostly, causes complete machine huge and heavy.The insulating oil of the oil-filled transformer of present indoor use is the mixed liquor based on polychlorinated biphenyls mostly in addition, inflammable, poisonous, the contaminated environment of this class insulating oil.
For reducing operation and maintenance cost, in particular for the public hazards of eliminating poisonous insulating oil, many countries all are devoted to develop dry-type transformer.The Geafol type poured with epoxy resin dry-type transformer that the subordinate's of West Germany transformer affiliated company Leo Kirch nurse factory produces was cited as excellent design in Hanover's international fair in 1972.Gas insulating dry transformer has obtained development and application in the manufacturing of power transformer in recent years.Mitsubishi electric corporation and company of Kansai Electric Power have developed the gas-insulated power transformer of 275KV entirely, are full of insulating gas SF in a rectangular box
6, and be provided with fluorocarbon C
8F
16O liquid-cooling system (" transformer " 1986 the 6th phases the 36th face).200KVA gas-insulated power transformer (" transformer " 1986 the 7th phases the 35th face) has been manufactured experimently in domestic Changzhou Transformer Factory and the cooperation of Shanghai Communications University, Xi'an.Transformer two factories in Beijing have also manufactured experimently 500KVA gas-insulated power transformer (" transformer " 1987 the 3rd phases the 24th face).These transformers all are that coil and iron core integrally closed are being filled with SF
6Among the metal shell of gas.
The purpose of this utility model is to use that the gas-insulated new technology produces that volume is very little, very light in weight, the not only dry testing transformer of convenient but also safety.
The characteristics of testing transformer are that output voltage is very high, and capacity is little, and intermittent operation.So the utility model is achieved in that iron core and builds up required shape on request with grain-oriented cold-reduced silicon sheet, coil high-strength polyester enamelled wire coiling, it is characterized in that coil is locked among the shell of an airtight insulation, this shell has the hole of hollow, so that make iron core pass shell and inner coil thereof, fill with SF after finding time in the shell
6Or other insulating gass.For improving the stress when bleeding and inflate and making handsome in appearancely, this shell can be processed into shapes such as the cylinder of axial hollow or annulus.Primary and secondary coil is independent separately placed apart, then it can be placed respectively among two shells.Primary and secondary coil winding becomes inside and outside layer core structure, then can place among the same shell, has a hole on the shell at least, uses for bleeding, inflate and install pressure vacuum gauge.This shell available epoxy or Other Engineering plastic processing form.The capacitance core of capacitance graded bushing also can be in SF
6Or among other insulating gass or other insulants, like this with regard to usable resins or plastic processing one can seal in fill SF
6Or the capacitance graded bushing of other insulating gass or other insulants.This sleeve pipe and shell can be the single-pieces of split, fit together then, also can be in aggregates with shell processing.
Structure essence of the present utility model is a kind of gas insulating dry transformer, it is not only applicable to testing transformer, and be applicable to the needed transformer of other occasions, this structure needs high-tension transformer in the instrument and equipment of high pressure etc. as some, because can be made the gas insulating dry transformer of high voltage grade such as 250KV or 500KV as required.
The utility model volume is little, in light weight, pollution-free, in addition because the polyester film and the SF of layer insulation
6Gas dielectric constant is suitable, so the field strength distribution of coil inside is even, can not produce corona phenomenon.
Fig. 1 is the utility model front schematic view
Fig. 2 is the utility model side schematic view
1, capacitance graded bushing; 2, the shell of built-in cartridge type coil; 3, iron core; 4, lead-out wire plate; 5, pressure vacuum gauge; 6, air-filled pore; 7, carriage; 8, copper ball.
Embodiment.
The iron core 3 that is built up high 280mm, wide 410mm, thick 70mm, window 170 * 80mm by the 0.35mm cold-reduced silicon sheet is fixed on the carriage of being made by metallic plate, four universal wheels are housed 7, internal layer primary coil φ 2.25mm enamelled wire coiling 120 circles, outer secondary coil φ 0.19mm enamelled wire coiling 60000 circles, longitudinal insulation between two coils is the polyester film fish paper, and this cartridge type coil is locked in the shell 2.It is corresponding cylindric with the cartridge type coil shape that shell 2 usefulness poured with epoxy resin become, cylinder external diameter 300mm, and median pore diameter 80mm, high 400mm has pressure vacuum gauge 5 and air-filled pore 6 on it.After shell 2 sealing, fill with SF after taking out most air by air-filled pore 6
6Gas, being charged to gauge pressure is 1.2kg/cm
2Till during the left and right sides, because of being hermetic, so it is constant to keep this gauge pressure always.Capacitance graded bushing 1 is for poured with epoxy resin forms, in establish concentric copper sheet cylinder and make capacitance core and fill with SF
6Gas or casting epoxy resin, capacitance graded bushing 1 is contained on the shell 2, so that the high pressure line end is drawn.The gas insulating dry testing transformer rated voltage that makes like this is respectively 200 volts and 100 kilovolts, rated current be respectively 50 the peace and 100 milliamperes, rated capacity is 10 kilovolt-amperes, impedance voltage is 4.05%, no-load current is 6.2%.
Claims (3)
1, a kind of gas insulating dry testing transformer, form by iron core, primary and secondary coil, capacitance graded bushing, copper ball, it is characterized in that: primary and secondary coil is locked in that at least one is airtight, in fill among the shell of insulating gas, this shell has the hole of a hollow of passing for iron core, opens a confession on the shell at least and bleeds, inflates and install the hole that pressure vacuum gauge is used.
2, gas insulating dry testing transformer according to claim 1 is characterized in that: in the shell that installs coil be shapes such as the cylinder of axial hollow or annulus.
3, gas insulating dry testing transformer according to claim 1 and 2 is characterized in that: Packed on the shell, in fill the capacitance graded bushing of insulating gas or other insulants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88201127 CN2035527U (en) | 1988-01-28 | 1988-01-28 | Gas insulation dry testing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88201127 CN2035527U (en) | 1988-01-28 | 1988-01-28 | Gas insulation dry testing transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035527U true CN2035527U (en) | 1989-04-05 |
Family
ID=4836404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88201127 Withdrawn CN2035527U (en) | 1988-01-28 | 1988-01-28 | Gas insulation dry testing transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2035527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880285A (en) * | 2018-08-14 | 2018-11-23 | 江苏保丽洁环境科技股份有限公司 | Boosting rectification module in dry-type high-voltage transformer |
-
1988
- 1988-01-28 CN CN 88201127 patent/CN2035527U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880285A (en) * | 2018-08-14 | 2018-11-23 | 江苏保丽洁环境科技股份有限公司 | Boosting rectification module in dry-type high-voltage transformer |
| CN108880285B (en) * | 2018-08-14 | 2024-06-04 | 江苏保丽洁环境科技股份有限公司 | Boost rectifying module in dry-type high-voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |