GB446223A - Improvements in and relating to means for eliminating harmonics from an alternating current network - Google Patents

Improvements in and relating to means for eliminating harmonics from an alternating current network

Info

Publication number
GB446223A
GB446223A GB11419/35A GB1141935A GB446223A GB 446223 A GB446223 A GB 446223A GB 11419/35 A GB11419/35 A GB 11419/35A GB 1141935 A GB1141935 A GB 1141935A GB 446223 A GB446223 A GB 446223A
Authority
GB
United Kingdom
Prior art keywords
network
relating
alternating current
current network
tuned
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
GB11419/35A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB446223A publication Critical patent/GB446223A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/01—Arrangements for reducing harmonics or ripples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)
  • Rectifiers (AREA)

Abstract

446,223. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 12, 1935, No. 11419. Convention date, April 21, 1934. [Class 38 (iv)] Harmonics are eliminated from an A.C. network 13 by means of a star connected filter each phase of which consists of a parallel resonance circuit 1 tuned to the fundamental frequency in series with a number of parallel connected series resonance circuits 2-6 each tuned to different harmonic frequencies. The parallel resonance circuit 1 prevents the voltage of fundamental frequency from being impressed on the harmonic filter circuits 2-6. The Fig. shows the network 13 being supplied from a network 10 through a transformer 12, the network 10 also supplying a converter 11.
GB11419/35A 1934-04-21 1935-04-12 Improvements in and relating to means for eliminating harmonics from an alternating current network Expired GB446223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE446223X 1934-04-21

Publications (1)

Publication Number Publication Date
GB446223A true GB446223A (en) 1936-04-27

Family

ID=6537847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11419/35A Expired GB446223A (en) 1934-04-21 1935-04-12 Improvements in and relating to means for eliminating harmonics from an alternating current network

Country Status (1)

Country Link
GB (1) GB446223A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917699A (en) * 1954-05-24 1959-12-15 Havilland Propellers Ltd De Alternators and/or associated filter networks
US3290578A (en) * 1962-04-06 1966-12-06 English Electric Co Ltd Multi-phase converter including a harmonic filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917699A (en) * 1954-05-24 1959-12-15 Havilland Propellers Ltd De Alternators and/or associated filter networks
US3290578A (en) * 1962-04-06 1966-12-06 English Electric Co Ltd Multi-phase converter including a harmonic filter

Similar Documents

Publication Publication Date Title
GB477875A (en) Apparatus for producing harmonic frequency electrical waves from a base frequency
US2159596A (en) Frequency conversion circuits
GB446223A (en) Improvements in and relating to means for eliminating harmonics from an alternating current network
US1788362A (en) Oscillation generator
GB291529A (en) Improvements in and relating to smoothing circuits for reducing the amplitude of harmonic currents
GB602669A (en) Improvements in apparatus for generating harmonic frequencies from an alternating current supply
GB197782A (en) Means for converting a direct or unidirectional electric current into a high frequency alternating current
US2080459A (en) Modulating system
GB386295A (en) Improvements in and relating to means for converting direct current into alternatingcurrent or vice versa
GB399744A (en) Improvements in alternating current frequency changers employing grid-controlled discharge devices
GB502086A (en) Apparatus for generating voltages of harmonic frequencies from an alternating current supply
GB522429A (en) Improvements in and relating to carrier wave signalling systems
GB435577A (en) Improvements in and relating to electric converting systems
GB279841A (en) Means for suppressing the earth connection current in high tension electric mains
GB547499A (en) Improvements relating to multiple frequency oscillation generators
GB418602A (en) Improvements in or relating to electrical oscillation generators
GB410090A (en) Improvements in and relating to electric motor starting systems
GB334445A (en) Improvements in or relating to modulating devices for changing the frequencies of electric currents
GB313111A (en) Improvements in or relating to circuit arrangements for use with high frequency currents
GB267916A (en) Improvements in or relating to the elimination of disturbing waves or oscillations in alternating current electrical circuits
GB281275A (en)
GB557027A (en) Improvements in or relating to electric signalling systems
GB373766A (en) Improvements in and relating to the conversion of polyphase currents into single phase currents
GB396052A (en) Improvements in and relating to electric current converting apparatus
GB484883A (en) Improvements in or relating to electric modulating apparatus