IT1395516B1 - POWER SWITCH AND CURRENT TRANSFORMER FOR A POWER SWITCH - Google Patents
POWER SWITCH AND CURRENT TRANSFORMER FOR A POWER SWITCHInfo
- Publication number
- IT1395516B1 IT1395516B1 ITMI2009A001587A ITMI20091587A IT1395516B1 IT 1395516 B1 IT1395516 B1 IT 1395516B1 IT MI2009A001587 A ITMI2009A001587 A IT MI2009A001587A IT MI20091587 A ITMI20091587 A IT MI20091587A IT 1395516 B1 IT1395516 B1 IT 1395516B1
- Authority
- IT
- Italy
- Prior art keywords
- power switch
- current transformer
- switch
- power
- transformer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
- H01H71/125—Automatic release mechanisms with or without manual release using a solid-state trip unit characterised by sensing elements, e.g. current transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
- H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
-
- 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
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- 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
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Breakers (AREA)
- Transformers For Measuring Instruments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008049432.1A DE102008049432B4 (en) | 2008-09-25 | 2008-09-25 | Circuit breaker and current transformer for a circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
ITMI20091587A1 ITMI20091587A1 (en) | 2010-03-26 |
IT1395516B1 true IT1395516B1 (en) | 2012-09-28 |
Family
ID=41719845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI2009A001587A IT1395516B1 (en) | 2008-09-25 | 2009-09-17 | POWER SWITCH AND CURRENT TRANSFORMER FOR A POWER SWITCH |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN101685725B (en) |
DE (1) | DE102008049432B4 (en) |
FR (1) | FR2936352A1 (en) |
IT (1) | IT1395516B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102136358B (en) * | 2011-01-13 | 2012-12-19 | 上海诺雅克电气有限公司 | Power supply current transformer for electronic protection |
CN102800471A (en) * | 2011-05-26 | 2012-11-28 | 北京人民电器厂有限公司 | Quick saturation current transformer |
US20130027162A1 (en) * | 2011-07-29 | 2013-01-31 | Harry James Carlino | Miniature Neutral Toroidal Current Transformer |
CN105336484B (en) * | 2014-08-06 | 2018-05-01 | 上海电科电器科技有限公司 | Current transformer |
CN107068350A (en) * | 2017-05-12 | 2017-08-18 | 中科电力装备集团有限公司 | A kind of arc-shaped iron core structure of transformer |
KR102153970B1 (en) * | 2018-12-26 | 2020-09-09 | 엘에스일렉트릭(주) | Current transformer for air circuit breaker |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1427367A (en) * | 1918-10-17 | 1922-08-29 | Circuit interrupter | |
DE566337C (en) * | 1929-04-19 | 1932-12-15 | Reyrolle A & Co Ltd | Electrical protection arrangement for alternating current circuits |
DE1383977U (en) * | 1936-05-07 | 1936-09-10 | Joh. Schlenker Metallwarenfabrik | CURRENT CONVERTER WITH ALMOST CONSTANT SECONDARY FLOW INDEPENDENT OF THE PRIMARY CURRENT |
US2187523A (en) * | 1936-05-13 | 1940-01-16 | Union Switch & Signal Co | Electrical regulating apparatus |
GB549057A (en) * | 1941-05-02 | 1942-11-04 | George Gilbert Glenn | Welding transformer |
NL69203C (en) * | 1941-12-19 | |||
US2412247A (en) * | 1942-07-28 | 1946-12-10 | Ite Circuit Breaker Ltd | Circuit breaker holding magnet and armature |
GB654290A (en) * | 1943-07-19 | 1951-06-13 | Ralph Sherman | Improvements in or relating to variable ratio transformers |
US2449649A (en) * | 1945-10-08 | 1948-09-21 | Forney James Donovan | Welding transformer |
DE1281032B (en) * | 1965-11-24 | 1968-10-24 | Busch Jaeger Duerener Metall | Magnetic toggle relay, especially for residual current circuit breakers |
DE2139010A1 (en) * | 1971-08-04 | 1973-03-08 | Kammeyer Karl | DIVIDED SHEET METAL SECTION FOR TRANSFORMERS |
US4152637A (en) * | 1977-06-20 | 1979-05-01 | The Charles Stark Draper Laboratory, Inc. | Saturable reactor limiter for current |
CH618043A5 (en) * | 1977-07-08 | 1980-06-30 | Landis & Gyr Ag | Instrument transformer for the isolated measurement of currents or voltages |
FR2725320B1 (en) | 1994-09-29 | 1996-10-31 | Schneider Electric Sa | TRIGGERING DEVICE HAVING AT LEAST ONE CURRENT TRANSFORMER |
FR2755536B1 (en) * | 1996-11-07 | 1998-12-04 | Schneider Electric Sa | ADJUSTABLE ELECTROMAGNETIC TRIGGER AND CIRCUIT BREAKER COMPRISING SUCH A TRIGGER |
FR2755532B1 (en) * | 1996-11-07 | 1998-12-04 | Schneider Electric Sa | CURRENT TRANSFORMER, TRIGGER AND CIRCUIT BREAKER COMPRISING SUCH A TRANSFORMER |
US7561387B2 (en) * | 2005-10-19 | 2009-07-14 | Eaton Corporation | Current transformer including a low permeability shunt and a trip device employing the same |
DE102006019613B4 (en) * | 2006-04-25 | 2014-01-30 | Vacuumschmelze Gmbh & Co. Kg | Magnetic core, process for its preparation and its use in a residual current circuit breaker |
CA2721012C (en) * | 2008-04-10 | 2017-03-07 | Siemens Aktiengesellschaft | Method for producing a transformer core and a transformer core |
-
2008
- 2008-09-25 DE DE102008049432.1A patent/DE102008049432B4/en not_active Expired - Fee Related
-
2009
- 2009-09-17 FR FR0904450A patent/FR2936352A1/en not_active Withdrawn
- 2009-09-17 IT ITMI2009A001587A patent/IT1395516B1/en active
- 2009-09-25 CN CN2009101761916A patent/CN101685725B/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR2936352A1 (en) | 2010-03-26 |
CN101685725A (en) | 2010-03-31 |
DE102008049432B4 (en) | 2018-02-08 |
CN101685725B (en) | 2012-12-12 |
DE102008049432A1 (en) | 2010-04-01 |
ITMI20091587A1 (en) | 2010-03-26 |
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