GB876787A - A circuit arrangement for supplying a direct-current load through rectifiers and for protecting the rectifiers against over-currents - Google Patents

A circuit arrangement for supplying a direct-current load through rectifiers and for protecting the rectifiers against over-currents

Info

Publication number
GB876787A
GB876787A GB1882758A GB1882758A GB876787A GB 876787 A GB876787 A GB 876787A GB 1882758 A GB1882758 A GB 1882758A GB 1882758 A GB1882758 A GB 1882758A GB 876787 A GB876787 A GB 876787A
Authority
GB
United Kingdom
Prior art keywords
rectifiers
current
path
currents
protecting
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
GB1882758A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
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 Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB876787A publication Critical patent/GB876787A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
    • H02H7/1257—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers responsive to short circuit or wrong polarity in output circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

876,787. Protective cut-out arrangements; arcing-preventing in switches. SIEMENSSCHUCKERTWERKE A.G. June 12, 1958 [June 15, 1957], No. 18827/58. Class 38 (5). In an arrangement in which a D.C. load 6 is supplied from an A.C. supply 1 through rectifiers connected in two paths such that the load current flows through one path during one half cycle and through the other path during the other half cycle, each path includes a circuitbreaking device 8, 9 and control means are provided which under overload conditions effect the opening of the devices 8, 9 in turn during the half cycles in which they do not carry current. The arrangement may be of the bi-phase type or of the bridge-connected type as shown in the Figure in which the limbs of the bridge are provided by rectifiers 2 . . . 5. The devices 8, 9 may be controlled by saturable chokes (not shown) which are so arranged that when the current through the rectifier 2 exceeds a predetermined value, the device 9 in the other path is opened and when the current through the rectifier 3 exceeds this value the device 8 is opened.
GB1882758A 1957-06-15 1958-06-02 A circuit arrangement for supplying a direct-current load through rectifiers and for protecting the rectifiers against over-currents Expired GB876787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES53901A DE1041140B (en) 1957-06-15 1957-06-15 Overcurrent protection for DC circuits that are fed from an AC network via rectifiers

Publications (1)

Publication Number Publication Date
GB876787A true GB876787A (en) 1961-09-06

Family

ID=7489500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1882758A Expired GB876787A (en) 1957-06-15 1958-06-02 A circuit arrangement for supplying a direct-current load through rectifiers and for protecting the rectifiers against over-currents

Country Status (4)

Country Link
CH (1) CH363709A (en)
DE (1) DE1041140B (en)
FR (1) FR1194622A (en)
GB (1) GB876787A (en)

Also Published As

Publication number Publication date
CH363709A (en) 1962-08-15
FR1194622A (en) 1959-11-10
DE1041140B (en) 1958-10-16

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