ZA9021B - Transformers and cores for transformers - Google Patents
Transformers and cores for transformersInfo
- Publication number
- ZA9021B ZA9021B ZA9021A ZA9021A ZA9021B ZA 9021 B ZA9021 B ZA 9021B ZA 9021 A ZA9021 A ZA 9021A ZA 9021 A ZA9021 A ZA 9021A ZA 9021 B ZA9021 B ZA 9021B
- Authority
- ZA
- South Africa
- Prior art keywords
- transformers
- cores
- Prior art date
Links
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29316289A | 1989-01-03 | 1989-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA9021B true ZA9021B (en) | 1990-10-31 |
Family
ID=23127923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA9021A ZA9021B (en) | 1989-01-03 | 1990-01-02 | Transformers and cores for transformers |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH02230706A (en) |
| CN (1) | CN1044871A (en) |
| AU (1) | AU4696689A (en) |
| CA (1) | CA2005429A1 (en) |
| ZA (1) | ZA9021B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4369297B2 (en) * | 2004-05-26 | 2009-11-18 | 株式会社日立産機システム | Transformer |
| CN1845273B (en) * | 2005-04-08 | 2010-04-28 | 大同股份有限公司 | Non-crystal iron core manufacturing method |
| CN100571947C (en) * | 2005-08-09 | 2009-12-23 | 张明德 | A kind of opening cutting tool and cutting method thereof of rolling up iron core |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025010B2 (en) * | 1972-05-16 | 1975-08-20 | ||
| JPS6142906A (en) * | 1984-08-07 | 1986-03-01 | Toshiba Corp | Manufacture of stationary induction electric apparatus |
| JPS61180407A (en) * | 1985-02-05 | 1986-08-13 | Toshiba Corp | Wound core |
| US4709471A (en) * | 1986-08-15 | 1987-12-01 | Westinghouse Electric Corp. | Method of making a magnetic core |
-
1989
- 1989-12-13 CA CA 2005429 patent/CA2005429A1/en not_active Abandoned
- 1989-12-20 AU AU46966/89A patent/AU4696689A/en not_active Abandoned
-
1990
- 1990-01-02 ZA ZA9021A patent/ZA9021B/en unknown
- 1990-01-03 CN CN 90100017 patent/CN1044871A/en active Pending
- 1990-01-04 JP JP21990A patent/JPH02230706A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU4696689A (en) | 1990-07-12 |
| CN1044871A (en) | 1990-08-22 |
| CA2005429A1 (en) | 1990-07-03 |
| JPH02230706A (en) | 1990-09-13 |
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