GB426148A - Improvements in and relating to protective means for mercury-vapour rectifiers - Google Patents

Improvements in and relating to protective means for mercury-vapour rectifiers

Info

Publication number
GB426148A
GB426148A GB35700/33A GB3570033A GB426148A GB 426148 A GB426148 A GB 426148A GB 35700/33 A GB35700/33 A GB 35700/33A GB 3570033 A GB3570033 A GB 3570033A GB 426148 A GB426148 A GB 426148A
Authority
GB
United Kingdom
Prior art keywords
distributer
regulation
ignition
short circuit
disconnected
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
GB35700/33A
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 GB426148A publication Critical patent/GB426148A/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
    • H02H7/127—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 having auxiliary control electrode to which blocking control voltages or currents are applied in case of emergency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

426,148. Converting. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Dec. 19, 1933, No. 35700. Convention date, March 7. [Class 38 (ii)] A rectifier supplying an inductive load is protected against back ignition and short circuit by means which momentarily displace the ignition point of the anodes and cause the arrangement to operate as an inverter. In the form shown in the Figure the grid circuit of the discharge device 4 is normally disconnected, but when overload occurs a coil 8 supplied from a current transformer 7 completes the grid circuit so that the grids receive impulses from the distributer 13 which are approximately 180‹ phase displaced from the corresponding anode potentials. In a modification to obtain grid control for voltage regulation a further distributer is mounted on the shaft of the motor 14, this distributer being connected to the supply 9 during normal operation but disconnected and the distributer 13 connected when back ignition or short circuit occurs. Regulation is obtained by shifting the angular position of the distributer stator. If regulation is to be effected only within narrow limits a single distributer having two brushes angularly displaced 180‹ may be used. Specification 390,914 is referred to.
GB35700/33A 1933-03-07 1933-12-19 Improvements in and relating to protective means for mercury-vapour rectifiers Expired GB426148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE426148X 1933-03-07

Publications (1)

Publication Number Publication Date
GB426148A true GB426148A (en) 1935-03-28

Family

ID=6477155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35700/33A Expired GB426148A (en) 1933-03-07 1933-12-19 Improvements in and relating to protective means for mercury-vapour rectifiers

Country Status (1)

Country Link
GB (1) GB426148A (en)

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