GB677025A - Improvements relating to protective apparatus for electricity distributing systems - Google Patents

Improvements relating to protective apparatus for electricity distributing systems

Info

Publication number
GB677025A
GB677025A GB409750A GB409750A GB677025A GB 677025 A GB677025 A GB 677025A GB 409750 A GB409750 A GB 409750A GB 409750 A GB409750 A GB 409750A GB 677025 A GB677025 A GB 677025A
Authority
GB
United Kingdom
Prior art keywords
lines
pair
circuit
improvements relating
supplied over
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
GB409750A
Inventor
Sydney Lucas
Gordon Gresley Wakefield
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.)
Lucas Support Services Ltd
Original Assignee
Rotax 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 Rotax Ltd filed Critical Rotax Ltd
Priority to GB409750A priority Critical patent/GB677025A/en
Publication of GB677025A publication Critical patent/GB677025A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Rectifiers (AREA)

Abstract

677,025. Protective cut-out arrangements. ROTAX, Ltd. Jan. 4, 1951. [Feb. 17, 1950] No. 4097/50. Class 38 (v). [Also in Group XXXV] A three-phase charging system (see Group XXXV) for storage batteries e, i which are supplied over a step-down transformer c, g and full-wave rectifiers d, h, is protected against an inter-phase fault by a relay having a pair of normally-balanced windings k supplied over rectifier bridges m, n, respectively connected to a neutral point (as shown, a star point of the transformer) and one of the lines, and to the other two lines. The relay controls a contact o which on fault engages one pair of fixed contacts to energize a coil p which opens the circuit of a circuit-breaker operating coil r at q.
GB409750A 1950-02-17 1950-02-17 Improvements relating to protective apparatus for electricity distributing systems Expired GB677025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB409750A GB677025A (en) 1950-02-17 1950-02-17 Improvements relating to protective apparatus for electricity distributing systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB409750A GB677025A (en) 1950-02-17 1950-02-17 Improvements relating to protective apparatus for electricity distributing systems

Publications (1)

Publication Number Publication Date
GB677025A true GB677025A (en) 1952-08-06

Family

ID=9770700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB409750A Expired GB677025A (en) 1950-02-17 1950-02-17 Improvements relating to protective apparatus for electricity distributing systems

Country Status (1)

Country Link
GB (1) GB677025A (en)

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