CA2205539A1 - Transformer testing method - Google Patents

Transformer testing method

Info

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
Application number
CA 2205539
Other languages
French (fr)
Other versions
CA2205539C (en
Inventor
Edward F. Veverka
Gary L. Goedde
Stanley S. Kershaw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Industries LLC
Original Assignee
Cooper Industries LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/394,523 external-priority patent/US4975797A/en
Application filed by Cooper Industries LLC filed Critical Cooper Industries LLC
Publication of CA2205539A1 publication Critical patent/CA2205539A1/en
Application granted granted Critical
Publication of CA2205539C publication Critical patent/CA2205539C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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.
CA002205539A 1989-08-16 1989-12-01 Transformer testing method Expired - Fee Related CA2205539C (en)

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)

Also Published As

Publication number Publication date
CA2205539C (en) 2001-02-13
CA2206716A1 (en) 1991-02-16
CA2206716C (en) 1999-12-21

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