GB820135A - Protective circuit for heavy duty rectifier installations - Google Patents

Protective circuit for heavy duty rectifier installations

Info

Publication number
GB820135A
GB820135A GB12780/57A GB1278057A GB820135A GB 820135 A GB820135 A GB 820135A GB 12780/57 A GB12780/57 A GB 12780/57A GB 1278057 A GB1278057 A GB 1278057A GB 820135 A GB820135 A GB 820135A
Authority
GB
United Kingdom
Prior art keywords
coil
armature
switch
core
april
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
GB12780/57A
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.)
Rheinmetall Air Defence AG
Maschinenfabrik Oerlikon AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Maschinenfabrik Oerlikon 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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG, Maschinenfabrik Oerlikon AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of GB820135A publication Critical patent/GB820135A/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
    • H02H7/1209—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 converters using only discharge tubes

Landscapes

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

Abstract

820,135. Protective cut-out arrangements. MASCHINEKFABRIK OERLIKON. April 18, 1957 [April 26, 1956], No. 12780/57. Class 38 (5). [Also in Group XXXV] In a rectifier installation in which the neutral points of two groups of transformer secondary windings 4 are interconnected through a balancer coil 6, the interconnection includes bar windings 5<SP>1</SP> of electromagnetic releases 5 which release single pole switches 8<SP>1</SP> in the anode circuits of the rectifiers 7 in the event of a backfire. Each switch 8<SP>1</SP> may have a closing coil 11, a holding coil 10, an armature A, a movable core B and a fixed core. When a switch is released, the armature is moved from the full line position to the dotted line position, Fig. 2, and to reclose the switch it is necessary to de-energize coil 11 so that the core B drops on to the armature A and enables the coil 10 to hold the armature. On re-energizing the coil 11 the core B together with the armature A are raised to close the switch.
GB12780/57A 1956-04-26 1957-04-18 Protective circuit for heavy duty rectifier installations Expired GB820135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH820135X 1956-04-26

Publications (1)

Publication Number Publication Date
GB820135A true GB820135A (en) 1959-09-16

Family

ID=4539354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12780/57A Expired GB820135A (en) 1956-04-26 1957-04-18 Protective circuit for heavy duty rectifier installations

Country Status (2)

Country Link
DE (1) DE1048640B (en)
GB (1) GB820135A (en)

Also Published As

Publication number Publication date
DE1048640B (en)

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