IT1395516B1 - POWER SWITCH AND CURRENT TRANSFORMER FOR A POWER SWITCH - Google Patents

POWER SWITCH AND CURRENT TRANSFORMER FOR A POWER SWITCH

Info

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
Application number
ITMI2009A001587A
Other languages
Italian (it)
Inventor
Markus Gross
Thomas Kiendl
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ITMI20091587A1 publication Critical patent/ITMI20091587A1/en
Application granted granted Critical
Publication of IT1395516B1 publication Critical patent/IT1395516B1/en

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)
ITMI2009A001587A 2008-09-25 2009-09-17 POWER SWITCH AND CURRENT TRANSFORMER FOR A POWER SWITCH IT1395516B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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