CN201966056U - Extra-high voltage gas insulating electromagnetic type voltage transformer - Google Patents
Extra-high voltage gas insulating electromagnetic type voltage transformer Download PDFInfo
- Publication number
- CN201966056U CN201966056U CN 201020607340 CN201020607340U CN201966056U CN 201966056 U CN201966056 U CN 201966056U CN 201020607340 CN201020607340 CN 201020607340 CN 201020607340 U CN201020607340 U CN 201020607340U CN 201966056 U CN201966056 U CN 201966056U
- Authority
- CN
- China
- Prior art keywords
- voltage
- housing
- transformer
- insulator
- extra
- 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
Links
Images
Abstract
The utility model relates to an extra-high voltage gas insulating electromagnetic type voltage transformer and belongs to voltage transformers. The voltage transformer mainly consists of a pressing ring, an insulator, a shell, a lead wire shielded enclosure, a high voltage lead wire, a conducting rod, a transformer body, an inflation valve, a connection flange, a bracket, an explosion protection device, a terminal strip, a secondary wiring board, a secondary terminal box and the like. Because the inside of the voltage transformer is shielded by using a multi-curvature shape, the electric field strength can be reduced; and because insulating paints are sprayed on the shielding surface of the transformer body, the surface of the lead wire shielded enclosure and the inner surface of the shell, a partial discharge inception voltage can be improved. The voltage transformer can meet the technical property requirement of an extra-high voltage metal sealing combination switch on the voltage transformer, has the characteristics of stable insulating property, small partial discharge amount and no hidden explosion danger and can realize the measurement of a voltage signal of an extra-high voltage transmission line and relay protection.
Description
(1) technical field
The ultrahigh-pressure gas insulated electromagnetic potential transformer of the utility model relates to a kind of voltage transformer, is mainly used in the metal enclosed unit switch of superhigh pressure, belongs to high-tension line voltage measurement and relay protection device field.
(2) background technology
At present, the metal enclosed unit switch of superhigh pressure adopts the electromagnetic potential transformer structure with the voltage transformer great majority, but because its internal shield shape is unreasonable, cause electric field strength higher, it is low that starting voltage is put in office, and the voltage transformer volume that designs is big, and the complete machine cost is higher.
(3) summary of the invention
To put starting voltage low in order to overcome existing electromagnetic potential transformer existence office, volume is big, the more high shortcoming of complete machine cost, the utility model provides a kind of ultrahigh-pressure gas insulated electromagnetic potential transformer, this electromagnetic potential transformer adopts the single stage type structure, enclosure interior is filled with SF6 gas, and the shielded surfaces of device body, lead-in wire radome, shell inner surface and surface spraying insulating varnish can raising office be put starting voltage.The radome surface is the multi-curvature shape, can reduce electric field strength, thereby improves the dielectric strength of voltage transformer.The shielding of device body, lead-in wire radome adopt the less rustproof aluminium sheet processing of hardness, and difficulty of processing is little, and cost is lower.
The technical scheme that its technical problem that solves the ultrahigh-pressure gas insulated electromagnetic potential transformer of the utility model adopts is: mainly by trim ring, insulator, housing, the lead-in wire radome, high-voltage connection, conducting rod, the device body, charge valve, adpting flange, support, explosion-protection equipment, terminal board, the secondary connection plate, compositions such as secondary terminal board, it is characterized in that: insulator is installed in the housing upper end, trim ring is connected the insulator upper surface and is connected with the housing upper end, the lead-in wire radome is fixed on the insulator center conductor, the device body is fixed on the adpting flange, adpting flange is connected with the housing lower end, support is connected with adpting flange, explosion-protection equipment is installed on the adpting flange, conducting rod is held on one's body with device and is connected, high-voltage connection one end is connected with the insulator center conductor, the other end is connected with conducting rod, charge valve is fixed on the housing, the secondary terminal board is fixed on the housing, secondary terminal board internal fixation has terminal board, and the secondary connection plate is fixed on the flange of housing.Enclosure interior is filled SF6 gas, and lead-in wire radome surface is the multi-curvature shape.The device body adopts the single stage type structure, and " mouth " font that adopts unshakable in one's determination, primary winding, secondary coil are wound on the stem unshakable in one's determination outside, by electromagnetic induction, high voltage signal are converted to the standard low voltage signal.Internal shield adopts metal spinning to be shaped, and polish on the surface again, and in shielded surfaces and shell inner surface, spray insulating varnish can raising office be put starting voltage.Explosion-protection equipment is housed on the housing, and when device interior air pressure is elevated to the explosion value, pressure release is carried out in the explosion-protection equipment action, prevents that breaking from appearring in housing, protection surrounding devices and personal safety.
The beneficial effects of the utility model are, the shielding of device body, lead-in wire radome adopt the less rustproof aluminium sheet processing of hardness, and difficulty of processing is little, and cost is low.The shielded surfaces of device body, lead-in wire radome surface, shell inner surface spraying insulating varnish can raising office be put starting voltage.The radome surface is the multi-curvature shape, can reduce electric field strength, thereby improves dielectric strength.SF6 gas is filled in inside, can carry out remote monitor to the gas pressure in the product, satisfies the performance requirement of ehv power transmission system to voltage transformer.
(4) description of drawings
Fig. 1 is a cross section view of the present utility model.
Fig. 2 is a device body cross section view.
1. trim rings among the figure, 2. insulator, 3. housing, 4. lead-in wire radome, 5. high-voltage connection, 6. conducting rod, 7. device body, 8. charge valve, 9. adpting flange, 10. support, 11. explosion-protection equipments, 12. terminal boards, 13. the secondary connection plate, 14. secondary terminal boards, 15. high-tension shielding covers, 16. side barricades, 17. primary winding, 18. secondary coils, 19. coil insulation tubes, 20. the coil shielding, 21. end barricades, 22. iron cores.
(5) embodiment
Below in conjunction with accompanying drawing processing assembling of the present utility model is elaborated.
In Fig. 1, insulator (2) is installed in housing (3) upper end, trim ring (1) is connected insulator (2) upper surface and is connected with housing (3) upper end, lead-in wire radome (4) is fixed on insulator (2) center conductor, device body (7) is fixed on the adpting flange (9), adpting flange (9) is connected with housing (3) lower end, support (10) is connected with adpting flange (9), explosion-protection equipment (11) is installed on the adpting flange (9), conducting rod (6) is connected with device body (7) upper end, high-voltage connection (5) one ends are connected with the center conductor of insulator (2), the other end is connected with conducting rod (6), and charge valve (8) is fixed on the housing (3), and secondary terminal board (14) is fixed on the housing (3), secondary terminal board (14) internal fixation has terminal board (12), and secondary connection plate (13) is fixed on the flange of housing (3).
In Fig. 2, side barricade (16) is fixed on iron core (22) side, end barricade (21) is fixed on iron core (22) bottom surface, coil insulation tube (19) is sleeved on the stem of iron core (22), at coil insulating cylinder (19) outside coiling secondary coil (18), at secondary coil (18) outside coiling primary winding (17), the primary winding outermost is arranged coil shielding (20), at coil shielding (20) outside suit high-tension shielding cover (15).
The utility model lead-in wire radome, high-tension shielding cover, end barricade, side barricade material are the 5A02 aluminium sheet, and housing and adpting flange material are Q235A steel plate or 5A02 aluminium sheet.
The utility model has passed through verification experimental verification, by the lead-in wire radome and the high-tension shielding cover of employing multi-curvature, and to shielded surfaces and shell inner surface spray insulating varnish, improve office and put starting voltage, have the insulation level height, partial discharge quantity is little, the characteristics that error performance is stable.
Claims (3)
1. ultrahigh-pressure gas insulated electromagnetic potential transformer, mainly by trim ring, insulator, housing, the lead-in wire radome, high-voltage connection, conducting rod, the device body, charge valve, adpting flange, support, explosion-protection equipment, terminal board, the secondary connection plate, compositions such as secondary terminal board, it is characterized in that: insulator is installed in the housing upper end, trim ring is connected the insulator upper surface and is connected with the housing upper end, the lead-in wire radome is fixed on the insulator center conductor, the device body is fixed on the adpting flange, adpting flange is connected with the housing lower end, support is connected with adpting flange, explosion-protection equipment is installed on the adpting flange, conducting rod is held on one's body with device and is connected, high-voltage connection one end is connected with the insulator center conductor, the other end is connected with conducting rod, charge valve is fixed on the housing, the secondary terminal board is fixed on the housing, and secondary terminal board internal fixation has terminal board, and the secondary connection plate is fixed on the flange of housing.
2. a kind of ultrahigh-pressure gas insulated electromagnetic potential transformer according to claim 1 is characterized in that: the shielded surfaces of device body, lead-in wire radome surface and shell inner surface spraying insulating varnish.
3. a kind of ultrahigh-pressure gas insulated electromagnetic potential transformer according to claim 1, it is characterized in that: enclosure interior is filled SF6 gas, and lead-in wire radome surface is the multi-curvature shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020607340 CN201966056U (en) | 2010-11-15 | 2010-11-15 | Extra-high voltage gas insulating electromagnetic type voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020607340 CN201966056U (en) | 2010-11-15 | 2010-11-15 | Extra-high voltage gas insulating electromagnetic type voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966056U true CN201966056U (en) | 2011-09-07 |
Family
ID=44528609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020607340 Expired - Fee Related CN201966056U (en) | 2010-11-15 | 2010-11-15 | Extra-high voltage gas insulating electromagnetic type voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966056U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794338A (en) * | 2014-03-06 | 2014-05-14 | 无锡希恩电气有限公司 | High-voltage transformer provided with iron core high-voltage blocking plate |
| CN104977516A (en) * | 2015-07-22 | 2015-10-14 | 江苏靖江互感器厂有限公司 | Insulating test device |
| CN105374535A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Voltage transformer |
-
2010
- 2010-11-15 CN CN 201020607340 patent/CN201966056U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794338A (en) * | 2014-03-06 | 2014-05-14 | 无锡希恩电气有限公司 | High-voltage transformer provided with iron core high-voltage blocking plate |
| CN103794338B (en) * | 2014-03-06 | 2016-03-23 | 无锡希恩电气有限公司 | The high-tension transformer of iron core high pressure baffle plate is installed |
| CN104977516A (en) * | 2015-07-22 | 2015-10-14 | 江苏靖江互感器厂有限公司 | Insulating test device |
| CN104977516B (en) * | 2015-07-22 | 2017-11-03 | 江苏靖江互感器厂有限公司 | A kind of insulation test device |
| CN105374535A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203746626U (en) | Completely-sealed gas insulation type partial-discharge-free testing transformer | |
| CN201966056U (en) | Extra-high voltage gas insulating electromagnetic type voltage transformer | |
| CN203721469U (en) | 1000 kV electromagnetic voltage transformer | |
| CN201282020Y (en) | Capacitor admittance gas insulated electromagnetic voltage transformer | |
| CN201556523U (en) | High voltage dry type current transformer with protecting gap | |
| CN201629196U (en) | Insulation pulse type transformer | |
| CN202796409U (en) | Dry type voltage transformer for switchgears | |
| CN202034223U (en) | Three-phase potential transformer provided with a fuse and a metal case | |
| CN204857427U (en) | 220kV miniaturization electromagnetic type voltage transformer for GIS | |
| CN203013493U (en) | Electronic voltage transformer for high-voltage cubicle type gas insulated switchgear | |
| CN201601012U (en) | Voltage transformer used for GIS | |
| CN204668129U (en) | A kind of few oil type voltage transformer | |
| CN202084416U (en) | Voltage transformer with metal material sprayed on outer surface | |
| CN205211581U (en) | Modular power type voltage transformer | |
| CN202585045U (en) | Electrical transformer with voltage measurement and protection function | |
| CN209843481U (en) | Multi-turn link type sulfur hexafluoride gas insulation current transformer | |
| CN207925291U (en) | A kind of ring main unit 10kV miniaturization threephase potential transformers | |
| CN209000698U (en) | High-pressure side all insulation distribution transformer | |
| CN201298447Y (en) | Novel sulfur hexafluoride gas insulation electronic mutual inductor | |
| CN201348901Y (en) | Insulating bushing of high-voltage power equipment | |
| CN102013304A (en) | Dry type explosion-proof movable substation transformer core for amorphous alloy mine | |
| CN108400007A (en) | A kind of new-type compound inslation outdoor single-phase combination transformer with arrester | |
| CN205230796U (en) | Voltage transformer | |
| CN103578725B (en) | Dry type voltage transformer for switchgear | |
| CN211350363U (en) | Electromagnetic voltage transformer with inverted structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20121115 |