GB201109743D0 - Compact permanent magnet fault current limiter - Google Patents

Compact permanent magnet fault current limiter

Info

Publication number
GB201109743D0
GB201109743D0 GB201109743A GB201109743A GB201109743D0 GB 201109743 D0 GB201109743 D0 GB 201109743D0 GB 201109743 A GB201109743 A GB 201109743A GB 201109743 A GB201109743 A GB 201109743A GB 201109743 D0 GB201109743 D0 GB 201109743D0
Authority
GB
United Kingdom
Prior art keywords
cores
current limiter
fault current
core
permanent magnet
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.)
Withdrawn
Application number
GB201109743A
Other versions
GB2491642A (en
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.)
Zenergy Power Pty Ltd
Original Assignee
Zenergy Power Pty Ltd
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 Zenergy Power Pty Ltd filed Critical Zenergy Power Pty Ltd
Priority to GB201109743A priority Critical patent/GB2491642A/en
Publication of GB201109743D0 publication Critical patent/GB201109743D0/en
Priority to PCT/AU2012/000673 priority patent/WO2012167330A1/en
Publication of GB2491642A publication Critical patent/GB2491642A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F2003/103—Magnetic circuits with permanent magnets

Abstract

A saturated core fault current limiter includes at least one AC coil 31 wrapped around a high magnetic permeability core 33 having an elongated form; and a series of permanent magnets 41,42, 35-38 adjacent the core for saturating the core during non-fault operation of the fault current limiter. There can be at least two cores 33,34 adjacent each other, each wrapped by a corresponding AC coil 31,32 and at least one permanent magnet ring 35-38 surrounding the cores and coils for saturating the cores during normal operation. Permanent magnets 41,42 can extend across the ends of both cores which can be tapered having a reduced cross section at a middle portion and an increased are at the core ends (fig 5, 70-73). There can be six cores and six AC coils surrounding the cores for a three phase fault current limiter (fig 9).
GB201109743A 2011-06-10 2011-06-10 Saturated core fault current limiter Withdrawn GB2491642A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB201109743A GB2491642A (en) 2011-06-10 2011-06-10 Saturated core fault current limiter
PCT/AU2012/000673 WO2012167330A1 (en) 2011-06-10 2012-06-12 Compact permanent magnet fault current limiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201109743A GB2491642A (en) 2011-06-10 2011-06-10 Saturated core fault current limiter

Publications (2)

Publication Number Publication Date
GB201109743D0 true GB201109743D0 (en) 2011-07-27
GB2491642A GB2491642A (en) 2012-12-12

Family

ID=44357520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201109743A Withdrawn GB2491642A (en) 2011-06-10 2011-06-10 Saturated core fault current limiter

Country Status (2)

Country Link
GB (1) GB2491642A (en)
WO (1) WO2012167330A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2509742A (en) * 2013-01-11 2014-07-16 Gridon Ltd Fault current limiter
GB201303569D0 (en) * 2013-02-28 2013-04-10 Univ Cardiff Fault current limiter
GB201408855D0 (en) * 2014-05-19 2014-07-02 Faultcurrent Ltd Fault current limiter
CN109378812B (en) * 2018-12-10 2019-12-10 武汉大学 high-inductance transformation ratio magnetic saturation iron core direct current fault current limiter and current limiting method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8701437A (en) * 1987-06-19 1989-01-16 P I V Eldutronik Ind En Handel Current limiting choke for power supply line - has magnetic yoke with integral permanent magnets to change saturation characteristics
JP2001238349A (en) * 2000-02-25 2001-08-31 Mitsubishi Electric Corp Current limiter
JP2003244838A (en) * 2002-02-20 2003-08-29 Mitsubishi Electric Corp Three-phase current limiter
JP2004022913A (en) * 2002-06-19 2004-01-22 Mitsubishi Electric Corp Current limiter
WO2005010902A1 (en) * 2003-07-24 2005-02-03 Mitsubishi Denki Kabushiki Kaisha Current limiter
JP2005204457A (en) * 2004-01-19 2005-07-28 Mitsubishi Electric Corp Current-limiting device
WO2005083857A1 (en) * 2004-02-27 2005-09-09 Mitsubishi Denki Kabushiki Kaisha Distribution board

Also Published As

Publication number Publication date
GB2491642A (en) 2012-12-12
WO2012167330A1 (en) 2012-12-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)