GB389722A - Improvements in and relating to the transmission of electrical energy between alternating current networks of different frequencies - Google Patents

Improvements in and relating to the transmission of electrical energy between alternating current networks of different frequencies

Info

Publication number
GB389722A
GB389722A GB22421/32A GB2242132A GB389722A GB 389722 A GB389722 A GB 389722A GB 22421/32 A GB22421/32 A GB 22421/32A GB 2242132 A GB2242132 A GB 2242132A GB 389722 A GB389722 A GB 389722A
Authority
GB
United Kingdom
Prior art keywords
rectifiers
networks
rectifier
supplied
network
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
GB22421/32A
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB389722A publication Critical patent/GB389722A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

389,722. Frequency changing. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Aug. 10, 1932, No. 22421. Convention date, Aug. 10, 1931. [Class 38 (ii).] Three phase networks N1, N2, Fig. 1, are interconnected by means of a frequency changer which consists of two groups of rectifiers G1<SP>1>, G 1<SP>11> and G2<SP>1>, G2<SP>11>, connected by transformers T1, T2 to the networks, the secondary star points and cathodes in each group being cross-connected. Rectifiers G1<SP>1>, G2<SP>11> have control grids which are supplied with potentials in phase opposition to the potentials produced at the corresponding anodes by the associated network. When power is being transmitted from N1 to N2, rectifiers G1<SP>1> and G2<SP>1> do not function but rectified A.C. is supplied by C1<SP>11> to G2<SP>11> which acts as an inverter and feeds three-phase A.C: to the' network N2. Similarly when power flows from N2 to N1 the current flow is through rectifiers G2<SP>1> and G1<SP>1>. In a modification, rectifiers G1<SP>1>, G2<SP>11> -are replaced by a single rectifier having twelve anodes and control grids and rectifiers G1<SP>11>, G2<SP>1> by a single rectifier-having twelve anodes. The Specification as open to inspection under Sect. 91 comprises also the modification, shown in Fig. 3 (Cancelled), in which, associated with the networks N1, N2 are rectifiers G1, G2 having control grids, the energization of which are controlled' by a synchroscope S connected between the networks. When the condition of the networks is such that power should flow from N1 to N2 the synchroscope S opens the switch A and closes B ; rectifier A.C. is supplied by G1 to G2 which acts as an inverter and feeds A.C. to the network N2. Similarly when power flows from N 2 to N1 rectifier G2 is decontrolled and G1 is controlled. This subject-matter does not appear in the Specification as accepted.
GB22421/32A 1931-08-10 1932-08-10 Improvements in and relating to the transmission of electrical energy between alternating current networks of different frequencies Expired GB389722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE389722X 1931-08-10

Publications (1)

Publication Number Publication Date
GB389722A true GB389722A (en) 1933-03-23

Family

ID=6371464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22421/32A Expired GB389722A (en) 1931-08-10 1932-08-10 Improvements in and relating to the transmission of electrical energy between alternating current networks of different frequencies

Country Status (1)

Country Link
GB (1) GB389722A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028490A (en) * 1957-10-24 1962-04-03 Sarl La Detection Electronique Apparatus responsive to the composition of a gaseous medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028490A (en) * 1957-10-24 1962-04-03 Sarl La Detection Electronique Apparatus responsive to the composition of a gaseous medium

Similar Documents

Publication Publication Date Title
GB389722A (en) Improvements in and relating to the transmission of electrical energy between alternating current networks of different frequencies
US1894079A (en) Electric valve converting system
US1957229A (en) Electric valve converting apparatus
GB396954A (en) Improvements in and relating to the frequency transformation of three-phase current
GB399744A (en) Improvements in alternating current frequency changers employing grid-controlled discharge devices
GB398327A (en) Improvements in and relating to the conversion of continuous current of a given voltage into continuous current of another voltage
GB216495A (en) Improvements in systems of electric distribution
US1906319A (en) Electric current inverting system
GB412398A (en) Improvements in and relating to rectifier installations
GB401404A (en) A method of converting polyphase current of a given frequency into single-phase current of a smaller frequency
GB373766A (en) Improvements in and relating to the conversion of polyphase currents into single phase currents
GB387472A (en) Improvements in and relating to electric transformers
GB512906A (en) Improvements in or relating to electric current converters
GB385868A (en) Improvements in and relating to the conversion of polyphase current into single-phase current
GB417917A (en) Improvements in and relating to electric converting systems
GB446223A (en) Improvements in and relating to means for eliminating harmonics from an alternating current network
GB409682A (en) Improvements in and relating to electric converting apparatus
GB456222A (en) Improvements in and relating to electric transmission and distribution systems
GB396202A (en) A method of converting polyphase current of a given frequency into alternating current of another frequency
GB375029A (en) Improvements in and relating to the conversion of polyphase currents into single phase currents
GB693464A (en) Improvements relating to direct current electric transmission systems employing valve converters
GB383693A (en) Improvements relating to alternating current rectifying systems
GB426146A (en) Improvements in and relating to electric converting systems
GB390914A (en) Improvements in and relating to vapour electric discharge rectifiers
GB413775A (en) Improvements relating to the voltage regulation of grid controlled rectifiers