EP2573781A1 - High voltage current coil - Google Patents
High voltage current coil Download PDFInfo
- Publication number
- EP2573781A1 EP2573781A1 EP12460049A EP12460049A EP2573781A1 EP 2573781 A1 EP2573781 A1 EP 2573781A1 EP 12460049 A EP12460049 A EP 12460049A EP 12460049 A EP12460049 A EP 12460049A EP 2573781 A1 EP2573781 A1 EP 2573781A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer
- current
- metal
- tube
- cone
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims description 25
- 239000011810 insulating material Substances 0.000 claims description 13
- 239000012212 insulator Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/34—Combined voltage and current transformers
- H01F38/36—Constructions
Definitions
- the invention deals with a high voltage current coil which is an element of a current transformer used in a combined instrument transformer which is comprised of a current transformer and a voltage transformer located in a common enclosure.
- a combined instrument transformer is applicable in high voltage electric power measuring systems.
- a combined instrument transformer known from patent description PL193711 comprises an inductive toroidal core-type current transformer and an inductive three-leg core-type potential transformer, located in the upper and lower parts of the combined instrument transformer, respectively, in metal enclosures and it has an insulator filled with insulating medium in which equipotential screens of an electrically conductive material are located.
- the primary winding of the voltage transformer and the secondary winding of the voltage transformer are wound on a cylindrical tube of an insulating material, located on the central column of the core which is a composition of two rectangular cores.
- the equipotential screens are built into an insulating material spread over the high-voltage output lead of the voltage transformer and they are connected with the equipotential screens built into the insulating material spread over the tube with the output leads of the secondary windings of the current transformer. Then, a galvanic connection is formed between screens of the same induced voltage.
- the insulating medium is located in the space between the insulated windings of the current and voltage transformers and their metal enclosures as well as in the space between the insulated input leads of the windings of the transformers running along the insulator and the internal surface of the insulator.
- JUK123 made by ABB Sp.z o.o.
- the current coil of the current transformer which surrounds the current lead, is located in a metal enclosure.
- Output leads of the current coil windings are taken through a current bushing in the form of a metal tube to a terminal box connected to the voltage transformer casing.
- the current bushing is connected with the metal enclosure through a screw joint in which the male thread is made at the end of the bushing tube, and the female thread is made in the opening of a joining sleeve which is tightly fitted in the opening made in the metal casing of the current coil.
- the metal enclosure of the current coil together with the current bushing are located in paper-and-oil insulation.
- the screw joint of the current bushing with the joining sleeve enables the occurrence of blades formed by the protruding thread and by the edges of the sleeve, which may weaken the strength of the paper-and-oil insulation at the place where the bushing joins the current coil enclosure.
- the essence of the high-voltage current coil according to the invention comprising a cylindrical core located in a metal enclosure of the coil together with secondary windings whose ends are located in a joining sleeve and in a metal tube joined non-permanently with the joining sleeve by a screw joint, the metal tube being an element of the current bushing of the current transformer, which bushing together with the metal enclosure is located in insulating material is that the metal tube constituting an element of the bushing of the current transformer is provided with a metal protective guard in the shape of a truncated cone.
- the cone base with the larger diameter faces the joining sleeve.
- the edge of the cone base with the smaller diameter is permanently joined with the external surface of the metal tube of the transformer bushing.
- the edge of the cone base with the larger diameter is folded inside the cone.
- the protective guard is located in insulating material.
- the protective guard has a transverse port.
- the edge of the smaller-diameter base of the cone is joined with the external surface of the metal tube of the current bushing in a place situated below the male thread of the metal tube of the bushing.
- the edge of the smaller-diameter base of the cone is joined with the external surface of the metal tube of the bushing by means of a weld.
- the high-voltage current coil is an element of a current transformer which together with a voltage transformer and an insulator make a combined instrument transformer.
- the advantage of the solution according to the invention is that the sharp edges of the screw joint which can weaken the paper-and-oil insulation at the place where the bushing and the current coil enclosure are joined are covered.
- fig. 1 shows the combined instrument transformer in half-view and in broken-out frontal half section showing the insulator in section
- fig. 2 the current coil in frontal section
- fig. 3 the tube of the current bushing with the joining sleeve and the protective guard and with a part of the metal enclosure of the coil
- fig. 4 the protective guard in perspective view.
- the combined instrument transformer comprises a current transformer 1 and a voltage transformer 2 located in the upper and lower parts of the transformer, respectively, in metal enclosures 1a and 2a and it has an insulator 3 filled with an insulating medium 4.
- the current transformer 1 is located in a metal head 5 in which there is at least one cylindrical core 6. Secondary windings 7 of the current transformer 1 are wound on the core 6. The windings 7 with the core 6 are located in a metal enclosure 8.
- a primary winding 9 whose terminal is connected to the metal head 5 of the instrument transformer runs through the center of the cores.
- the output leads of the secondary windings 7 of the instrument transformer 1 are brought into a metal tube 10 which is an element of a current bushing of the transformer 1, which is located inside the insulator 3.
- the metal tube 10 has a male thread 11, shown in fig. 3 , used to join the tube 10 with the metal enclosure 8 through a joining sleeve 12, tightly fitted in an opening in the enclosure 8 through which the output leads of the secondary windings 7 of the current transformer 1 are taken.
- the sleeve 12 has a female thread 13.
- the female thread 13 of the sleeve 12 and the male thread 11 of the tube 10 form a screw joint of the current bushing and the enclosure 8.
- the end of the tube 10 with the male thread 11 is furnished with a metal protective guard 14 which is fixed to the external surface of the tube 10 below the part of the tube with the thread 11.
- the guard 14 has the shape of a truncated cone whose smaller-diameter base has an opening adjusted to the external diameter of the tube 10 onto which the guard 14 is pulled and permanently fixed to it for example by welding with a weld 15.
- the cone base with the larger diameter faces the enclosure 8 and it has its edge folded inside the cone, forming its gentle rounding.
- the folded edge of the cone is situated at the height of the end of the screw joint between the tube 10 and the sleeve 12.
- the guard 14 has a transverse port 14a which is used to introduce a set screw into it and to allow penetration of the inside of the guard and of the thread covered by it by an insulating medium.
- the metal enclosure 8, a part of the sleeve 12, the guard 14 and the tube 10 are located in insulating material 16 in the form of paper-and-oil insulation 16a surrounding the enclosure 8, and 16b surrounding the tube 10.
- Equipotential screens 17 are located in the insulation 16b.
- the output leads of the secondary windings 7 are taken outside the tube 10 at its other end and they are connected with the external terminals located in the terminal box attached to the lower part of a casing 2b of the voltage transformer 2.
- a compensating bellows 18 In the upper part of the casing 1a of the current transformer there is a compensating bellows 18 whose function is to compensate variations in the volume of the insulating medium 4 which can be insulating oil, sulfur hexafluoride, or nitrogen.
- the insulating material 16b and the equipotential screens 17 of the output leads of the secondary windings 7 of the current transformer which cover the tube 10 with the output leads of the windings, are gradated.
- the output of the secondary windings 7, built in this way, runs along the insulator 3 down to its lower part and to the connection with the casing of the voltage transformer 2a located under the insulator 3.
- a primary winding 19 of the voltage transformer 2 is insulated with insulating material with built-in equipotential screens of electrically conducting material.
- the primary winding 19 is wound onto secondary windings 20 of the voltage transformer 2 which are wound onto a cylindrical tube 21 of insulating material. Inside the tube 21 there are columns of two magnetic cores 22 which form a jacket core system for the windings of the voltage transformer 2. At the bottom, the combined instrument transformer is closed by the bottom part of the casing 2b with four openings used to fasten the transformer to the frame by means of bolts, not shown in the drawing.
- the metal protective guard 14 permanently joined with the metal tube 10 by means of a weld shields the screw joint of this tube with the metal enclosure of the current coil 8 made of aluminum sheet or as an aluminum casting with the sleeve 12 and thus protects the paper-and-oil insulation against the occurrence of partial discharges originating from the sharp edges of the thread.
- the screw joint can be a metric thread, a unified screw thread, or any other thread depending on the design needs.
Abstract
Description
- The invention deals with a high voltage current coil which is an element of a current transformer used in a combined instrument transformer which is comprised of a current transformer and a voltage transformer located in a common enclosure. A combined instrument transformer is applicable in high voltage electric power measuring systems.
- A combined instrument transformer known from patent description
PL193711 - There is known a combined instrument transformer of a similar design, so called JUK123 made by ABB Sp.z o.o., in which the current coil of the current transformer, which surrounds the current lead, is located in a metal enclosure. Output leads of the current coil windings are taken through a current bushing in the form of a metal tube to a terminal box connected to the voltage transformer casing. The current bushing is connected with the metal enclosure through a screw joint in which the male thread is made at the end of the bushing tube, and the female thread is made in the opening of a joining sleeve which is tightly fitted in the opening made in the metal casing of the current coil. The metal enclosure of the current coil together with the current bushing are located in paper-and-oil insulation. The screw joint of the current bushing with the joining sleeve enables the occurrence of blades formed by the protruding thread and by the edges of the sleeve, which may weaken the strength of the paper-and-oil insulation at the place where the bushing joins the current coil enclosure.
- The essence of the high-voltage current coil according to the invention, comprising a cylindrical core located in a metal enclosure of the coil together with secondary windings whose ends are located in a joining sleeve and in a metal tube joined non-permanently with the joining sleeve by a screw joint, the metal tube being an element of the current bushing of the current transformer, which bushing together with the metal enclosure is located in insulating material is that the metal tube constituting an element of the bushing of the current transformer is provided with a metal protective guard in the shape of a truncated cone. The cone base with the larger diameter faces the joining sleeve. The edge of the cone base with the smaller diameter is permanently joined with the external surface of the metal tube of the transformer bushing. The edge of the cone base with the larger diameter is folded inside the cone.
- Preferably, the protective guard is located in insulating material.
- Preferably, the protective guard has a transverse port.
- Preferably, in the protective guard, the edge of the smaller-diameter base of the cone is joined with the external surface of the metal tube of the current bushing in a place situated below the male thread of the metal tube of the bushing.
- Preferably, in the protective guard, the edge of the smaller-diameter base of the cone is joined with the external surface of the metal tube of the bushing by means of a weld.
- Preferably, the high-voltage current coil is an element of a current transformer which together with a voltage transformer and an insulator make a combined instrument transformer.
- The advantage of the solution according to the invention is that the sharp edges of the screw joint which can weaken the paper-and-oil insulation at the place where the bushing and the current coil enclosure are joined are covered.
- The invention is presented as an example of an embodiment in the drawing, where
fig. 1 shows the combined instrument transformer in half-view and in broken-out frontal half section showing the insulator in section,fig. 2 - the current coil in frontal section,fig. 3 - the tube of the current bushing with the joining sleeve and the protective guard and with a part of the metal enclosure of the coil, andfig. 4 - the protective guard in perspective view. - The combined instrument transformer comprises a current transformer 1 and a
voltage transformer 2 located in the upper and lower parts of the transformer, respectively, inmetal enclosures insulator 3 filled with aninsulating medium 4. The current transformer 1 is located in a metal head 5 in which there is at least onecylindrical core 6.Secondary windings 7 of the current transformer 1 are wound on thecore 6. Thewindings 7 with thecore 6 are located in ametal enclosure 8. Aprimary winding 9 whose terminal is connected to the metal head 5 of the instrument transformer runs through the center of the cores. The output leads of thesecondary windings 7 of the instrument transformer 1 are brought into ametal tube 10 which is an element of a current bushing of the transformer 1, which is located inside theinsulator 3. At its one end, themetal tube 10 has amale thread 11, shown infig. 3 , used to join thetube 10 with themetal enclosure 8 through a joiningsleeve 12, tightly fitted in an opening in theenclosure 8 through which the output leads of thesecondary windings 7 of the current transformer 1 are taken. Thesleeve 12 has afemale thread 13. Thefemale thread 13 of thesleeve 12 and themale thread 11 of thetube 10 form a screw joint of the current bushing and theenclosure 8. The end of thetube 10 with themale thread 11 is furnished with a metalprotective guard 14 which is fixed to the external surface of thetube 10 below the part of the tube with thethread 11. Theguard 14 has the shape of a truncated cone whose smaller-diameter base has an opening adjusted to the external diameter of thetube 10 onto which theguard 14 is pulled and permanently fixed to it for example by welding with aweld 15. The cone base with the larger diameter faces theenclosure 8 and it has its edge folded inside the cone, forming its gentle rounding. The folded edge of the cone is situated at the height of the end of the screw joint between thetube 10 and thesleeve 12. Theguard 14 has atransverse port 14a which is used to introduce a set screw into it and to allow penetration of the inside of the guard and of the thread covered by it by an insulating medium. Themetal enclosure 8, a part of thesleeve 12, theguard 14 and thetube 10 are located in insulatingmaterial 16 in the form of paper-and-oil insulation 16a surrounding theenclosure tube 10.Equipotential screens 17 are located in theinsulation 16b. The output leads of thesecondary windings 7 are taken outside thetube 10 at its other end and they are connected with the external terminals located in the terminal box attached to the lower part of a casing 2b of thevoltage transformer 2. In the upper part of thecasing 1a of the current transformer there is acompensating bellows 18 whose function is to compensate variations in the volume of theinsulating medium 4 which can be insulating oil, sulfur hexafluoride, or nitrogen. Theinsulating material 16b and theequipotential screens 17 of the output leads of thesecondary windings 7 of the current transformer which cover thetube 10 with the output leads of the windings, are gradated. The output of thesecondary windings 7, built in this way, runs along theinsulator 3 down to its lower part and to the connection with the casing of thevoltage transformer 2a located under theinsulator 3. Aprimary winding 19 of thevoltage transformer 2 is insulated with insulating material with built-in equipotential screens of electrically conducting material. - The
primary winding 19 is wound ontosecondary windings 20 of thevoltage transformer 2 which are wound onto acylindrical tube 21 of insulating material. Inside thetube 21 there are columns of twomagnetic cores 22 which form a jacket core system for the windings of thevoltage transformer 2. At the bottom, the combined instrument transformer is closed by the bottom part of the casing 2b with four openings used to fasten the transformer to the frame by means of bolts, not shown in the drawing. - In operating conditions, the metal
protective guard 14 permanently joined with themetal tube 10 by means of a weld shields the screw joint of this tube with the metal enclosure of thecurrent coil 8 made of aluminum sheet or as an aluminum casting with thesleeve 12 and thus protects the paper-and-oil insulation against the occurrence of partial discharges originating from the sharp edges of the thread. The screw joint can be a metric thread, a unified screw thread, or any other thread depending on the design needs. -
- 1. current transformer
- 1 a - current transformer casing
- 2. voltage transformer
- 2a - voltage transformer casing
- 2b - bottom casing of voltage transformer
- 3. insulator
- 4. insulating medium
- 5. metal head
- 6. cylindrical core of the current transformer
- 7. secondary windings of the current transformer
- 8. metal enclosure of the current coil
- 9. primary winding of the current transformer
- 10.metal tube
- 11.male thread of the tube
- 12.joining sleeve
- 13. female thread of the sleeve
- 14. metal protective guard
- 14a - port in the guard
- 15. weld
- 16. insulating material
- 16a - insulation surrounding the current coil enclosure
- 16b - insulation surrounding the metal tube
- 17.equipotential screens
- 18. compensatory bellows
- 19. primary winding of the voltage transformer
- 20. secondary winding of the voltage transformer
- 21. cylindrical tube of insulating material
- 22. magnetic core of the voltage transformer
Claims (6)
- A high voltage current coil comprising a cylindrical core located in a metal enclosure of the coil together with secondary windings whose ends are located in a joining sleeve and in a metal tube joined non-permanently with the joining sleeve by a screw joint, the metal tube being a current bushing of the current transformer, which bushing together with the metal enclosure is located in insulating material, characterized in that the metal tube (10) constituting an element of the bushing of the transformer is provided with a metal protective guard (14) in the shape of a truncated cone whose base with the larger diameter faces the joining sleeve (12), and the edge of the cone base with the smaller diameter is permanently joined with the external surface of the metal tube (10), while the edge of the cone base with the larger diameter is folded inside the cone.
- A coil according to claim 1, characterized in that the protective guard (14) is located in insulating material (16a).
- A coil according to claim 1, characterized in that the protective guard (14) has a transverse port (14a).
- A coil according to claim 1, characterized in that in the protective guard (14), the edge of the cone base with the smaller diameter is joined with the external surface of the metal tube (10) in a place situated below the male thread (11) of the tube (10).
- A coil according to claim 3 characterized in that in the protective guard, (14) the edge of the cone base with the smaller diameter is joined with the external surface of the metal tube (10) by means of a weld (15).
- A coil according to claims 1 through 4, characterized in that it is an element of a current transformer (1) which together with a voltage transformer (2) and an insulator (3) make a combined instrument transformer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12460049T PL2573781T3 (en) | 2011-08-31 | 2012-08-08 | High voltage current coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL120301U PL66897Y1 (en) | 2011-08-31 | 2011-08-31 | Current high-voltage coil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2573781A1 true EP2573781A1 (en) | 2013-03-27 |
EP2573781B1 EP2573781B1 (en) | 2014-03-26 |
Family
ID=47846526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12460049.5A Active EP2573781B1 (en) | 2011-08-31 | 2012-08-08 | High voltage current coil |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2573781B1 (en) |
HR (1) | HRP20140579T1 (en) |
PL (2) | PL66897Y1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109148132A (en) * | 2018-08-04 | 2019-01-04 | 安徽华能集团电器有限公司 | A kind of folding mutual inductor |
WO2021058102A1 (en) * | 2019-09-26 | 2021-04-01 | Siemens Energy Global GmbH & Co. KG | Instrument transformer and method of assembling |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668513A (en) * | 1970-03-31 | 1972-06-06 | Tokyo Shibaura Electric Co | Upright type bushing current transformer |
US5952617A (en) * | 1996-04-19 | 1999-09-14 | Jersey Central Power & Light Company | Power transformer and coupling means |
PL193711B1 (en) | 2000-03-24 | 2007-03-30 | Abb Sp Zoo | Current-vothage transformer |
EP2239744A1 (en) * | 2009-04-06 | 2010-10-13 | ABB Technology AG | Multirange current instrument transformer |
-
2011
- 2011-08-31 PL PL120301U patent/PL66897Y1/en not_active IP Right Cessation
-
2012
- 2012-08-08 PL PL12460049T patent/PL2573781T3/en unknown
- 2012-08-08 EP EP12460049.5A patent/EP2573781B1/en active Active
-
2014
- 2014-06-20 HR HRP20140579AT patent/HRP20140579T1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668513A (en) * | 1970-03-31 | 1972-06-06 | Tokyo Shibaura Electric Co | Upright type bushing current transformer |
US5952617A (en) * | 1996-04-19 | 1999-09-14 | Jersey Central Power & Light Company | Power transformer and coupling means |
PL193711B1 (en) | 2000-03-24 | 2007-03-30 | Abb Sp Zoo | Current-vothage transformer |
EP2239744A1 (en) * | 2009-04-06 | 2010-10-13 | ABB Technology AG | Multirange current instrument transformer |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109148132A (en) * | 2018-08-04 | 2019-01-04 | 安徽华能集团电器有限公司 | A kind of folding mutual inductor |
CN109148132B (en) * | 2018-08-04 | 2023-11-17 | 安徽华能集团电器有限公司 | Foldable transformer |
WO2021058102A1 (en) * | 2019-09-26 | 2021-04-01 | Siemens Energy Global GmbH & Co. KG | Instrument transformer and method of assembling |
Also Published As
Publication number | Publication date |
---|---|
EP2573781B1 (en) | 2014-03-26 |
PL66897Y1 (en) | 2013-12-31 |
PL2573781T3 (en) | 2014-07-31 |
HRP20140579T1 (en) | 2014-11-07 |
PL120301U1 (en) | 2013-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4794999B2 (en) | Lightning proof type low voltage insulation transformer | |
US11217377B2 (en) | Low inter-winding capacitance coil form | |
EP2573781B1 (en) | High voltage current coil | |
US2327774A (en) | High frequency current transformer | |
CN105075400B (en) | High voltage, high-frequency and high-power transformer | |
US4812798A (en) | Electric transformer for microwave ovens | |
US9859701B2 (en) | Connection of at least four electric conductors | |
EP2565884B1 (en) | High voltage coil | |
JP5177231B2 (en) | Transformer used for arc welding machine and assembly method of transformer used for arc welding machine | |
JP2017108102A (en) | Stationary induction apparatus | |
JP6495148B2 (en) | Trance | |
KR101338905B1 (en) | High frequency transformer | |
WO2014181497A1 (en) | Transformer | |
JP2014049681A (en) | Transformer | |
JP2019102739A (en) | Stationary induction appliance | |
US11282635B2 (en) | Stationary induction electric apparatus | |
JP2017208504A (en) | Connection terminal and stationary induction device including the same | |
RU2017141856A (en) | CURRENT TRANSFORMER AND DISTRIBUTION DEVICE WITH CURRENT TRANSFORMER | |
US2407420A (en) | High-voltage transformer | |
EP2819133A1 (en) | Electric coil device for electro-technical and power electronics applications | |
KR102094777B1 (en) | Transformer | |
PL66956Y1 (en) | HV coil | |
US20170194828A1 (en) | Electric Engine Stator, Electric Engine, and Electric Engine Stator Coil Insulation Process | |
EP2922070A1 (en) | Electrical insulation system and high voltage electromagnetic induction device comprising the same | |
JP2004335696A (en) | Shield with corona ring for high-voltage transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
17P | Request for examination filed |
Effective date: 20130618 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
17Q | First examination report despatched |
Effective date: 20130903 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ABB TECHNOLOGY AG |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DEBSKI, PAWEL Inventor name: WESOLOWSKI, ZBIGNIEW Inventor name: GRYSZTAR PAWEL Inventor name: TARNOWSKI, MARCIN Inventor name: DUZDOWSKI, JAROSLAW |
|
INTG | Intention to grant announced |
Effective date: 20131118 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 659350 Country of ref document: AT Kind code of ref document: T Effective date: 20140415 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602012001226 Country of ref document: DE Effective date: 20140508 |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: TUEP Ref document number: P20140579 Country of ref document: HR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140626 |
|
REG | Reference to a national code |
Ref country code: PL Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 659350 Country of ref document: AT Kind code of ref document: T Effective date: 20140326 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20140326 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140626 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140726 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: T1PR Ref document number: P20140579 Country of ref document: HR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140728 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602012001226 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20150106 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140808 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602012001226 Country of ref document: DE Effective date: 20150106 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140627 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20120808 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 5 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160808 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: HITACHI ENERGY SWITZERLAND AG, CH Free format text: FORMER OWNER: ABB TECHNOLOGY AG, ZUERICH, CH Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: ABB POWER GRIDS SWITZERLAND AG, CH Free format text: FORMER OWNER: ABB TECHNOLOGY AG, ZUERICH, CH Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: ABB SCHWEIZ AG, CH Free format text: FORMER OWNER: ABB TECHNOLOGY AG, ZUERICH, CH |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160808 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFUS Owner name: ABB SCHWEIZ AG, CH Free format text: FORMER OWNER: ABB TECHNOLOGY AG, CH |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140326 |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: ODRP Ref document number: P20140579 Country of ref document: HR Payment date: 20190726 Year of fee payment: 8 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PUE Owner name: ABB POWER GRIDS SWITZERLAND AG, CH Free format text: FORMER OWNER: ABB SCHWEIZ AG, CH |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: PNAN Ref document number: P20140579 Country of ref document: HR Owner name: ABB SCHWEIZ AG, CH |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: ODRP Ref document number: P20140579 Country of ref document: HR Payment date: 20200804 Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: HITACHI ENERGY SWITZERLAND AG, CH Free format text: FORMER OWNER: ABB SCHWEIZ AG, BADEN, CH Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: HITACHI ENERGY LTD, CH Free format text: FORMER OWNER: ABB SCHWEIZ AG, BADEN, CH Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: ABB POWER GRIDS SWITZERLAND AG, CH Free format text: FORMER OWNER: ABB SCHWEIZ AG, BADEN, CH |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: PPPP Ref document number: P20140579 Country of ref document: HR Owner name: ABB POWER GRIDS SWITZERLAND AG, CH Ref country code: HR Ref legal event code: PNAN Ref document number: P20140579 Country of ref document: HR Owner name: ABB SCHWEIZ AG, CH |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: ODRP Ref document number: P20140579 Country of ref document: HR Payment date: 20210803 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: PNAN Ref document number: P20140579 Country of ref document: HR Owner name: HITACHI ENERGY SWITZERLAND AG, CH Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: HITACHI ENERGY SWITZERLAND AG, CH Free format text: FORMER OWNER: ABB POWER GRIDS SWITZERLAND AG, BADEN, CH Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: HITACHI ENERGY LTD, CH Free format text: FORMER OWNER: ABB POWER GRIDS SWITZERLAND AG, BADEN, CH |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: ODRP Ref document number: P20140579 Country of ref document: HR Payment date: 20220801 Year of fee payment: 11 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230527 |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: ODRP Ref document number: P20140579 Country of ref document: HR Payment date: 20230801 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20230902 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20230727 Year of fee payment: 12 Ref country code: HR Payment date: 20230801 Year of fee payment: 12 Ref country code: FR Payment date: 20230824 Year of fee payment: 12 Ref country code: DE Payment date: 20230821 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 602012001226 Country of ref document: DE Representative=s name: DENNEMEYER & ASSOCIATES S.A., DE Ref country code: DE Ref legal event code: R081 Ref document number: 602012001226 Country of ref document: DE Owner name: HITACHI ENERGY LTD, CH Free format text: FORMER OWNER: HITACHI ENERGY SWITZERLAND AG, BADEN, CH |