GB639316A - Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways - Google Patents

Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways

Info

Publication number
GB639316A
GB639316A GB1739348A GB1739348A GB639316A GB 639316 A GB639316 A GB 639316A GB 1739348 A GB1739348 A GB 1739348A GB 1739348 A GB1739348 A GB 1739348A GB 639316 A GB639316 A GB 639316A
Authority
GB
United Kingdom
Prior art keywords
locating
excessive current
propelled vehicles
electric railways
electrically propelled
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
GB1739348A
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.)
WALTER SALISBURY BOLSOVER
Original Assignee
WALTER SALISBURY BOLSOVER
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 WALTER SALISBURY BOLSOVER filed Critical WALTER SALISBURY BOLSOVER
Priority to GB1739348A priority Critical patent/GB639316A/en
Publication of GB639316A publication Critical patent/GB639316A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

639,316. Detecting and locating faults. BOLSOVER, W. S. June 29, 1948, No. 17393. [Class 38 (v)] The live rail of an electrically-propelled vehicle is divided into sections 1 ... 7, each section being in series with a fuse 11 ... 17, each fuse shunting a relay 18 ... 24 so that a short-circuit between rails 1 ... 7 and 40 blows the fuse to actuate the appropriate relay and thus indicate which section is at fault. If the vehicle is the cause of the short-circuit, this is indicated by the sequential actuation of the relays. The relays close the circuit of a common alarm bell 25.
GB1739348A 1948-06-29 1948-06-29 Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways Expired GB639316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1739348A GB639316A (en) 1948-06-29 1948-06-29 Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1739348A GB639316A (en) 1948-06-29 1948-06-29 Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways

Publications (1)

Publication Number Publication Date
GB639316A true GB639316A (en) 1950-06-28

Family

ID=10094407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1739348A Expired GB639316A (en) 1948-06-29 1948-06-29 Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways

Country Status (1)

Country Link
GB (1) GB639316A (en)

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