GB1340256A - Polyphase transformers - Google Patents

Polyphase transformers

Info

Publication number
GB1340256A
GB1340256A GB269871A GB269871A GB1340256A GB 1340256 A GB1340256 A GB 1340256A GB 269871 A GB269871 A GB 269871A GB 269871 A GB269871 A GB 269871A GB 1340256 A GB1340256 A GB 1340256A
Authority
GB
United Kingdom
Prior art keywords
transformer
points
transformers
harmonic
secondaries
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
Application number
GB269871A
Other languages
English (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1340256A publication Critical patent/GB1340256A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings
    • H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Ac-Ac Conversion (AREA)
GB269871A 1970-01-19 1971-01-19 Polyphase transformers Expired GB1340256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7001717A FR2074686B1 (enrdf_load_stackoverflow) 1970-01-19 1970-01-19

Publications (1)

Publication Number Publication Date
GB1340256A true GB1340256A (en) 1973-12-12

Family

ID=9049224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB269871A Expired GB1340256A (en) 1970-01-19 1971-01-19 Polyphase transformers

Country Status (6)

Country Link
US (1) US3671901A (enrdf_load_stackoverflow)
CH (1) CH538774A (enrdf_load_stackoverflow)
DE (1) DE2102233A1 (enrdf_load_stackoverflow)
FR (1) FR2074686B1 (enrdf_load_stackoverflow)
GB (1) GB1340256A (enrdf_load_stackoverflow)
NL (1) NL7100149A (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106089A (en) * 1976-09-10 1978-08-08 The Garrett Corporation Alternating current power dividing or combining system
JPS58179228U (ja) * 1982-05-27 1983-11-30 株式会社小松製作所 トロリ−アシストダンプトラツク用交流饋電装置
US4493016A (en) * 1982-10-07 1985-01-08 Westinghouse Electric Corp. Rectifier transformer
US4513243A (en) * 1983-06-08 1985-04-23 Westinghouse Electric Corp. Core form transformer for selective cancellation of subsynchronous resonance
US4638177A (en) * 1985-11-14 1987-01-20 Westinghouse Electric Corp. Rotating flux transformer
US4639610A (en) * 1985-12-10 1987-01-27 Westinghouse Electric Corp. Rotating flux transformer
FR2596195B1 (fr) * 1986-03-24 1989-03-31 Commissariat Energie Atomique Procede et dispositif de transmission de courants electriques triphases par un systeme de connexion amovible sans contact
FR2610150B1 (fr) * 1987-01-23 1989-05-12 Trailigaz Dispositif d'alimentation electrique pour un ozoneur
US5063487A (en) * 1990-03-22 1991-11-05 The United States Of America As Represented By The Secrectary Of The Navy Main and auxiliary transformer rectifier system for minimizing line harmonics
US5206539A (en) * 1991-11-15 1993-04-27 Power Distribution, Inc. Transformer with cancellation of harmonic currents by phase shited secondary windings
US5434455A (en) * 1991-11-15 1995-07-18 Power Distribution, Inc. Harmonic cancellation system
US5343080A (en) * 1991-11-15 1994-08-30 Power Distribution, Inc. Harmonic cancellation system
WO1993023913A1 (en) * 1992-05-11 1993-11-25 Electric Power Research Institute Optimized high power voltage sourced inverter system
WO1993023914A1 (en) * 1992-05-11 1993-11-25 Electric Power Research Institute Harmonic blocking converter system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE160887C (enrdf_load_stackoverflow) *
US1227415A (en) * 1911-08-07 1917-05-22 Westinghouse Electric & Mfg Co Transformer.
DE492873C (de) * 1925-06-20 1930-03-04 Bbc Brown Boveri & Cie Einrichtung zur Herstellung eines anzapfbaren Nullpunktes in Dreiphasennetzen zum Anschluss von Nullpunktsdrosselspulen
CH127635A (de) * 1926-08-16 1928-09-01 Bbc Brown Boveri & Cie Einrichtung zur Herstellung eines künstlichen Nullpunktes zum Anschluss von Löschspulen an Dreiphasennetze.
GB495370A (en) * 1936-02-11 1938-11-11 Siemens Ag Improvements in or relating to three-phase transformers and three-phase choking coils
USB354512I5 (enrdf_load_stackoverflow) * 1956-07-27
US2975357A (en) * 1958-09-26 1961-03-14 Gen Electric Transformer

Also Published As

Publication number Publication date
US3671901A (en) 1972-06-20
CH538774A (fr) 1973-06-30
DE2102233A1 (enrdf_load_stackoverflow) 1971-08-26
FR2074686B1 (enrdf_load_stackoverflow) 1977-06-03
NL7100149A (enrdf_load_stackoverflow) 1971-07-21
FR2074686A1 (enrdf_load_stackoverflow) 1971-10-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee