IT952862B - Cambio tensioni d uscita per trasformatori elettrici - Google Patents

Cambio tensioni d uscita per trasformatori elettrici

Info

Publication number
IT952862B
IT952862B IT67342/72A IT6734272A IT952862B IT 952862 B IT952862 B IT 952862B IT 67342/72 A IT67342/72 A IT 67342/72A IT 6734272 A IT6734272 A IT 6734272A IT 952862 B IT952862 B IT 952862B
Authority
IT
Italy
Prior art keywords
change
output voltages
electric transformers
transformers
electric
Prior art date
Application number
IT67342/72A
Other languages
English (en)
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Application granted granted Critical
Publication of IT952862B publication Critical patent/IT952862B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • 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
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
    • H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/548—Electromechanical and static switch connected in series

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Ac-Ac Conversion (AREA)
IT67342/72A 1971-02-05 1972-02-04 Cambio tensioni d uscita per trasformatori elettrici IT952862B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE01416/71A SE350143B (it) 1971-02-05 1971-02-05

Publications (1)

Publication Number Publication Date
IT952862B true IT952862B (it) 1973-07-30

Family

ID=20258149

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67342/72A IT952862B (it) 1971-02-05 1972-02-04 Cambio tensioni d uscita per trasformatori elettrici

Country Status (8)

Country Link
US (1) US3728611A (it)
CA (1) CA935878A (it)
DE (1) DE2203176C3 (it)
FR (1) FR2124273B1 (it)
GB (1) GB1376361A (it)
IT (1) IT952862B (it)
NO (1) NO132511C (it)
SE (1) SE350143B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2207367C2 (de) * 1972-02-17 1974-02-28 Reinhausen Maschf Scheubeck Anordnung zur Verhinderung von Stufenkurzschlüssen bei Lastumschaltern von Stufentransformatoren mit antiparallel geschalteten Thyristoren
AU5620873A (en) * 1972-06-16 1974-11-28 F. Hoffmann-Laroche & Co. Aktiengesellschaft Polyene derivatives
US3944913A (en) * 1974-06-01 1976-03-16 Mashinenfabrik Reinhausen Gebruder Scheubeck K. G. System for effecting tap changes of tapped transformer windings by means of thyristors
US4562338A (en) * 1983-07-15 1985-12-31 Osaka Titanium Co., Ltd. Heating power supply apparatus for polycrystalline semiconductor rods
CA2015483A1 (en) * 1989-07-07 1991-01-10 John Tardy Conductivity state monitor for thyristor transformer tap switching devices
US5786684A (en) * 1996-09-16 1998-07-28 Abb Power T&D Company, Inc. Apparatus and methods for minimizing over voltage in a voltage regulator
US8207716B2 (en) * 2004-10-14 2012-06-26 Utility Systems Technologies, Inc. Useful improvements in the art of 3-phase electronic tap changer commutation device
US7541751B2 (en) * 2007-03-05 2009-06-02 Mdl Corporation Soft start control circuit for lighting
US7595614B2 (en) * 2007-12-07 2009-09-29 Pennsylvania Transformer Technology, Inc. Load tap changer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538030B1 (de) * 1966-03-05 1970-06-04 Reinhausen Maschf Scheubeck Anordnung und Verfahren zur Lastumschaltung bei Stufentransformatoren
US3619765A (en) * 1970-06-24 1971-11-09 Westinghouse Electric Corp Electrical control apparatus using direction of current and power flow to gate switching devices

Also Published As

Publication number Publication date
CA935878A (en) 1973-10-23
GB1376361A (en) 1974-12-04
US3728611A (en) 1973-04-17
DE2203176A1 (de) 1972-08-31
DE2203176C3 (de) 1979-02-22
SE350143B (it) 1972-10-16
NO132511B (it) 1975-08-11
FR2124273B1 (it) 1975-09-12
FR2124273A1 (it) 1972-09-22
DE2203176B2 (de) 1978-06-22
NO132511C (it) 1975-11-19

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