JP4498736B2 - 電気回路保護システム - Google Patents
電気回路保護システム Download PDFInfo
- Publication number
- JP4498736B2 JP4498736B2 JP2003506076A JP2003506076A JP4498736B2 JP 4498736 B2 JP4498736 B2 JP 4498736B2 JP 2003506076 A JP2003506076 A JP 2003506076A JP 2003506076 A JP2003506076 A JP 2003506076A JP 4498736 B2 JP4498736 B2 JP 4498736B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- protection system
- inductor
- core
- load
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/021—Current limitation using saturable reactors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
- H05B6/666—Safety circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Microwave Tubes (AREA)
Description
Claims (8)
- 負荷を与えて負荷内の障害によってもたらされる電気回路内のエネルギの比較的急速な変化を散逸させるための上記電気回路内の保護システムであって、導電性材料のコイル及びコアからなるインダクタの形態の可変抵抗を備え、上記可変抵抗は、上記電気回路が正常に動作している時には比較的低インピーダンスを呈し、また上記電気回路上に障害が発生した時には比較的高いインピーダンスRを呈し、上記コアは、貧弱なインダクタ材料から成り、それによって上記コアが急速に磁化されたときに上記インダクタが高損失性になって上記高いインピーダンスRを引き起こし、この高いインピーダンスと回路の総合キャパシタンスとで構成される回路のCR定数によって決定されたレートで回路にまたがる電圧が接地電位まで緩やかに降下することを特徴とする保護システム。
- 上記可変抵抗は、導電性材料のコイル、及びコアからなるインダクタであり、上記電気回路上に障害が発生した時に上記コア内に比較的大きい渦電流が誘起され、それによって比較的高いインピーダンスがもたらされることを特徴とする請求項1に記載の保護システム。
- 上記コアは、フェライト材料からなることを特徴とする請求項2に記載の保護システム。
- 上記コアは、ニッケル箔からなることを特徴とする請求項2に記載の保護システム。
- 上記インダクタは、駆動回路と駆動回路負荷との間に直列であることを特徴とする請求項2、3、または4に記載の保護システム。
- 上記インダクタは、バイファイラー巻きされたコイルからなることを特徴とする請求項2、3、または4に記載の保護システム。
- 上記回路の正常動作中には、上記バイファイラーコイルの第1のワイヤーは電流を上記負荷へ導き、上記バイファイラーコイルの第2のワイヤーは電流を負荷から導くようになっており、それによって上記インダクタのインピーダンスが低くなっていることを特徴とする請求項6に記載の保護システム。
- 上記負荷内に障害が発生した時には、上記バイファイラーコイルの第1及び第2のワイヤーにまたがって同一方向の電圧が印加され、それによって比較的大きい渦電流が上記コア内に誘起されることを特徴とする請求項7に記載の保護システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0114679A GB2378327A (en) | 2001-06-15 | 2001-06-15 | Electrical circuit protection system |
PCT/GB2002/002734 WO2002103876A1 (en) | 2001-06-15 | 2002-06-14 | Electrical circuit protection system |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004532598A JP2004532598A (ja) | 2004-10-21 |
JP2004532598A5 JP2004532598A5 (ja) | 2006-01-05 |
JP4498736B2 true JP4498736B2 (ja) | 2010-07-07 |
Family
ID=9916710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003506076A Expired - Fee Related JP4498736B2 (ja) | 2001-06-15 | 2002-06-14 | 電気回路保護システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US7268991B2 (ja) |
EP (1) | EP1396059B1 (ja) |
JP (1) | JP4498736B2 (ja) |
DE (1) | DE60205622T2 (ja) |
GB (1) | GB2378327A (ja) |
WO (1) | WO2002103876A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9331476B2 (en) * | 2013-08-22 | 2016-05-03 | Varian Semiconductor Equipment Associates, Inc. | Solid state fault current limiter |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2137433A (en) * | 1934-02-06 | 1938-11-22 | Wirz Emil | Control device for electric transformers |
US2579978A (en) * | 1946-03-27 | 1951-12-25 | Hartford Nat Bank & Trust Co | Soft ferromagnetic material and method of making same |
US2665406A (en) * | 1946-04-01 | 1954-01-05 | Carmichael Thomas Frazer | High power factor current limiter |
US2891883A (en) * | 1955-06-14 | 1959-06-23 | Gen Electric | Magnetic nickel base material and method of making |
US3423710A (en) * | 1966-09-29 | 1969-01-21 | Atomic Energy Commission | Wide band inductive coil device |
US3671810A (en) * | 1969-09-18 | 1972-06-20 | Singer Co | Saturated core transient current limiter |
US3628132A (en) * | 1969-10-31 | 1971-12-14 | Burroughs Corp | Thin magnetic film magnetometer with zero-field reference |
US4031457A (en) * | 1975-09-19 | 1977-06-21 | The Charles Stark Draper Laboratory, Inc. | Saturable reactor current limiter |
US4122385A (en) * | 1975-11-28 | 1978-10-24 | The Charles Stark Draper Laboratory, Inc. | Saturable reactor current limiter |
US4152637A (en) * | 1977-06-20 | 1979-05-01 | The Charles Stark Draper Laboratory, Inc. | Saturable reactor limiter for current |
US4238812A (en) * | 1978-12-01 | 1980-12-09 | Raychem Corporation | Circuit protection devices comprising PTC elements |
JPS59198371A (ja) * | 1983-04-19 | 1984-11-10 | レイセオン カンパニ− | マグネトロン保護回路 |
GB2170667B (en) * | 1985-01-31 | 1988-09-07 | Marconi Co Ltd | A pulse generator |
US4695917A (en) * | 1985-12-04 | 1987-09-22 | Leach Corporation | Inductive power controller |
US4760484A (en) * | 1986-12-18 | 1988-07-26 | Honeywell, Inc. | Protective inductive devices with increased ability to absord volt-seconds in an electrical conductor |
JPH02168815A (ja) * | 1988-10-17 | 1990-06-28 | Gte Prod Corp | ソリッドステートステーション保護装置 |
JPH05122841A (ja) * | 1991-10-24 | 1993-05-18 | Okaya Electric Ind Co Ltd | 保安器 |
US5808495A (en) * | 1991-11-26 | 1998-09-15 | Furuno Electric Company, Limited | Magnetron driving circuit |
US6066901A (en) * | 1998-09-17 | 2000-05-23 | First Point Scientific, Inc. | Modulator for generating high voltage pulses |
WO2000048211A1 (fr) * | 1999-02-10 | 2000-08-17 | Matsushita Electric Industrial Co., Ltd. | Materiau magnetique composite |
-
2001
- 2001-06-15 GB GB0114679A patent/GB2378327A/en not_active Withdrawn
-
2002
- 2002-06-14 DE DE60205622T patent/DE60205622T2/de not_active Expired - Lifetime
- 2002-06-14 JP JP2003506076A patent/JP4498736B2/ja not_active Expired - Fee Related
- 2002-06-14 EP EP02732946A patent/EP1396059B1/en not_active Expired - Lifetime
- 2002-06-14 US US10/480,904 patent/US7268991B2/en not_active Expired - Lifetime
- 2002-06-14 WO PCT/GB2002/002734 patent/WO2002103876A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
GB2378327A (en) | 2003-02-05 |
US20040218333A1 (en) | 2004-11-04 |
EP1396059A1 (en) | 2004-03-10 |
JP2004532598A (ja) | 2004-10-21 |
WO2002103876A1 (en) | 2002-12-27 |
US7268991B2 (en) | 2007-09-11 |
DE60205622T2 (de) | 2006-06-08 |
EP1396059B1 (en) | 2005-08-17 |
DE60205622D1 (de) | 2005-09-22 |
GB0114679D0 (en) | 2001-08-08 |
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