CA2205539A1 - Transformer testing method - Google Patents
Transformer testing methodInfo
- Publication number
- CA2205539A1 CA2205539A1 CA 2205539 CA2205539A CA2205539A1 CA 2205539 A1 CA2205539 A1 CA 2205539A1 CA 2205539 CA2205539 CA 2205539 CA 2205539 A CA2205539 A CA 2205539A CA 2205539 A1 CA2205539 A1 CA 2205539A1
- Authority
- CA
- Canada
- Prior art keywords
- housing
- isolator
- arrester
- transformer
- external
- 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
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
Testing of a transformer in an oil filled housing is done by providing an external arrester insulator/isolator penetrating and making an electrical connection through the housing while preventing leaking of oil from said housing. An arrester inside said housing is electrically coupled between an interior end of arrester isolator and a predetermined potential point within the housing. An exterior end of said arrester isolator is removably and electrically coupled to a ground potential point. The ground coupling is removed from the exterior end of the arrester isolator and the transformer is tested by measuring electrical characteristics on transformer connections emerging from the housing. The ground coupling is reconnected to the exterior end of the arrester isolator after testing is completed. If required, an insulating cap may be applied to the external isolator to provide additional withstand capability to external flashover during the tests.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/394,523 US4975797A (en) | 1989-08-16 | 1989-08-16 | Arrester with external isolator |
US07/394,523 | 1989-08-16 | ||
CA002004444A CA2004444C (en) | 1989-08-16 | 1989-12-01 | Arrester with external isolator |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002004444A Division CA2004444C (en) | 1989-08-16 | 1989-12-01 | Arrester with external isolator |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2205539A1 true CA2205539A1 (en) | 1991-02-16 |
CA2205539C CA2205539C (en) | 2001-02-13 |
Family
ID=25673812
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002205539A Expired - Fee Related CA2205539C (en) | 1989-08-16 | 1989-12-01 | Transformer testing method |
CA002206716A Expired - Fee Related CA2206716C (en) | 1989-08-16 | 1989-12-01 | Arrester with external isolator |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002206716A Expired - Fee Related CA2206716C (en) | 1989-08-16 | 1989-12-01 | Arrester with external isolator |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2205539C (en) |
-
1989
- 1989-12-01 CA CA002205539A patent/CA2205539C/en not_active Expired - Fee Related
- 1989-12-01 CA CA002206716A patent/CA2206716C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2206716A1 (en) | 1991-02-16 |
CA2205539C (en) | 2001-02-13 |
CA2206716C (en) | 1999-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |