ATE9628T1 - SHIELDING BODY FOR YOCHES OF IRON CORES OF TRANSFORMERS AND CHOKE COILS. - Google Patents
SHIELDING BODY FOR YOCHES OF IRON CORES OF TRANSFORMERS AND CHOKE COILS.Info
- Publication number
- ATE9628T1 ATE9628T1 AT81108636T AT81108636T ATE9628T1 AT E9628 T1 ATE9628 T1 AT E9628T1 AT 81108636 T AT81108636 T AT 81108636T AT 81108636 T AT81108636 T AT 81108636T AT E9628 T1 ATE9628 T1 AT E9628T1
- Authority
- AT
- Austria
- Prior art keywords
- paper insert
- conductive paper
- conductive
- screening
- insert
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 2
- 238000012216 screening Methods 0.000 abstract 4
- 238000004804 winding Methods 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Transformers For Measuring Instruments (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
1. A screening element, consisting of a plurality of insulant layers (9, 12, 13, 14) and a conductive paper insert (10), for yokes (4) of stepwise laminated iron cores, of transformers and inductance coils, for screening the stepped edges of the yoke from end faces, or end screening rings, of windings, characterised in - that the conductive paper insert (10) is completely metallically separated from all neighbouring components (2, 4) which carry opposite voltages, - that the conductive layer (11) in the conductive paper insert (10) is of high resistance and free from voltage-balancing conductors, - that the electrical potential carried by the conductive insert (10) is adjusted in a purely capacitive manner by the relation of the distance from the yoke (4) to the conductive paper insert (10), to the distance from the conductive paper insert (10) to the end face or end screening ring of the winding (2), and - that the edges of the conductive paper insert (10) are set back on all sides with respect to the edges of the remaining insulant layers (9, 12, 13, 14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813111100 DE3111100A1 (en) | 1981-03-20 | 1981-03-20 | UMBRELLA BODY FOR JOCHE OF IRON CORES OF TRANSFORMERS AND THROTTLE COILS |
| EP81108636A EP0061521B1 (en) | 1981-03-20 | 1981-10-21 | Shielding element for yokes of iron cores in transformers and in inductance coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE9628T1 true ATE9628T1 (en) | 1984-10-15 |
Family
ID=6127909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT81108636T ATE9628T1 (en) | 1981-03-20 | 1981-10-21 | SHIELDING BODY FOR YOCHES OF IRON CORES OF TRANSFORMERS AND CHOKE COILS. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0061521B1 (en) |
| JP (1) | JPS57167613A (en) |
| AT (1) | ATE9628T1 (en) |
| DE (2) | DE3111100A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022061601A1 (en) * | 2020-09-23 | 2022-03-31 | Siemens Gas And Power Gmbh & Co. Kg | Shielding device for an coil of transformer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1274213B (en) * | 1959-08-10 | 1968-08-01 | Licentia Gmbh | Shield body for transformers and choke coils with conductive linings embedded in the insulating material |
| DE1513997B2 (en) * | 1966-02-16 | 1972-08-31 | SCREENING AREA FOR TRANSFORMERS, REACTORS AND THE LIKE. HIGH VOLTAGE DEVICES | |
| DE1563219A1 (en) * | 1966-05-12 | 1969-11-27 | Licentia Gmbh | Arrangement for shielding the yokes of iron cores of transformers |
| DE3022070C2 (en) * | 1980-06-12 | 1986-05-07 | Transformatoren Union Ag, 7000 Stuttgart | Screen body for wound core legs of transformers, inductors and the like. |
-
1981
- 1981-03-20 DE DE19813111100 patent/DE3111100A1/en not_active Withdrawn
- 1981-10-21 EP EP81108636A patent/EP0061521B1/en not_active Expired
- 1981-10-21 AT AT81108636T patent/ATE9628T1/en not_active IP Right Cessation
- 1981-10-21 DE DE8181108636T patent/DE3166352D1/en not_active Expired
-
1982
- 1982-03-19 JP JP57044422A patent/JPS57167613A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3111100A1 (en) | 1982-09-30 |
| JPS57167613A (en) | 1982-10-15 |
| DE3166352D1 (en) | 1984-10-31 |
| EP0061521A1 (en) | 1982-10-06 |
| EP0061521B1 (en) | 1984-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REN | Ceased due to non-payment of the annual fee |