CA2018938A1 - Microprocessor-based stand-alone digital protective relay for power transformers - Google Patents

Microprocessor-based stand-alone digital protective relay for power transformers

Info

Publication number
CA2018938A1
CA2018938A1 CA 2018938 CA2018938A CA2018938A1 CA 2018938 A1 CA2018938 A1 CA 2018938A1 CA 2018938 CA2018938 CA 2018938 CA 2018938 A CA2018938 A CA 2018938A CA 2018938 A1 CA2018938 A1 CA 2018938A1
Authority
CA
Canada
Prior art keywords
current
conditions
microprocessor
power devices
protective relay
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 2018938
Other languages
French (fr)
Other versions
CA2018938C (en
Inventor
M. Azizur Rahman
Ivi Hermanto
V.V.S. Murty Yalla
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.)
Genesis Group Inc
Original Assignee
M. Azizur Rahman
Ivi Hermanto
V.V.S. Murty Yalla
Genesis Group Inc.
Seabright Corporation Limited
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
Application filed by M. Azizur Rahman, Ivi Hermanto, V.V.S. Murty Yalla, Genesis Group Inc., Seabright Corporation Limited filed Critical M. Azizur Rahman
Priority to CA 2018938 priority Critical patent/CA2018938C/en
Publication of CA2018938A1 publication Critical patent/CA2018938A1/en
Application granted granted Critical
Publication of CA2018938C publication Critical patent/CA2018938C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Transformers (AREA)

Abstract

A stand alone protective apparatus and method is provided for electrical power devices. Power devices can be damaged due to conditions for example of over current, magnetizing in rush-current, over excitation voltage, saturation, ground fault or internal faults. To protect power devices from the noted conditions, electrical current of the power device is sensed and sampled. Digital processing is used for analyzing the digitally coded sample current and based on one of the conditions that can cause damage, a signal is provided for selectively actuating, by tripping an electric/electronic circuit breaker.
CA 2018938 1990-06-13 1990-06-13 Microprocessor-based stand-alone digital protective relay for power transformers Expired - Fee Related CA2018938C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2018938 CA2018938C (en) 1990-06-13 1990-06-13 Microprocessor-based stand-alone digital protective relay for power transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2018938 CA2018938C (en) 1990-06-13 1990-06-13 Microprocessor-based stand-alone digital protective relay for power transformers

Publications (2)

Publication Number Publication Date
CA2018938A1 true CA2018938A1 (en) 1991-12-13
CA2018938C CA2018938C (en) 2002-01-08

Family

ID=4145216

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2018938 Expired - Fee Related CA2018938C (en) 1990-06-13 1990-06-13 Microprocessor-based stand-alone digital protective relay for power transformers

Country Status (1)

Country Link
CA (1) CA2018938C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019504602A (en) * 2015-10-12 2019-02-14 ゼネラル エレクトリック テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングＧｅｎｅｒａｌ Ｅｌｅｃｔｒｉｃ Ｔｅｃｈｎｏｌｏｇｙ ＧｍｂＨ Improved or related protection for power transformers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019504602A (en) * 2015-10-12 2019-02-14 ゼネラル エレクトリック テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングＧｅｎｅｒａｌ Ｅｌｅｃｔｒｉｃ Ｔｅｃｈｎｏｌｏｇｙ ＧｍｂＨ Improved or related protection for power transformers

Also Published As

Publication number Publication date
CA2018938C (en) 2002-01-08

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed