GB1136827A - Improvements in fault detecting and indicating devices for electricity supply systems - Google Patents

Improvements in fault detecting and indicating devices for electricity supply systems

Info

Publication number
GB1136827A
GB1136827A GB1112966A GB1112966A GB1136827A GB 1136827 A GB1136827 A GB 1136827A GB 1112966 A GB1112966 A GB 1112966A GB 1112966 A GB1112966 A GB 1112966A GB 1136827 A GB1136827 A GB 1136827A
Authority
GB
United Kingdom
Prior art keywords
indicator
solenoid
current
winding
magnet
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
GB1112966A
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.)
RICHARD WILLIAM LANGLEY
Original Assignee
RICHARD WILLIAM LANGLEY
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 RICHARD WILLIAM LANGLEY filed Critical RICHARD WILLIAM LANGLEY
Priority to GB1112966A priority Critical patent/GB1136827A/en
Publication of GB1136827A publication Critical patent/GB1136827A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)

Abstract

1,136,827. Visible signalling apparatus. R. W. LANGLEY. 14 June, 1967 [14 March, 1966], No. 11129/66. Heading G4F. [Also in Divisions H1 and H2] The surge indicating device of Specification 966,577 is reset automatically when the current is again switched on after the fault indicated has been rectified. Each pivotally mounted flag type indicator 10 carries a magnet 15 which lies adjacent a reed contact device 17 when the indicator has fallen under gravity into its visible fault-indicating position, Fig. 2 (not shown), following a surge of current in the associated supply cable (not shown) which lifts armature 5 from projection 9 of the indicator 10. The contact device 17 is in series with the winding of a solenoid 19 and completes the winding circuit such that momentary energization of the solenoid on re-connection of current causes a plunger 20 on the core to kick the indicator 10 anticlockwise back to its original position, movement of magnet 15 away from device 17 allowing its contacts to re-open and break the winding circuit. A time lag in resetting is provided by a thermistor or thermal delay switch 23 in the solenoid circuit.
GB1112966A 1966-03-14 1966-03-14 Improvements in fault detecting and indicating devices for electricity supply systems Expired GB1136827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1112966A GB1136827A (en) 1966-03-14 1966-03-14 Improvements in fault detecting and indicating devices for electricity supply systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1112966A GB1136827A (en) 1966-03-14 1966-03-14 Improvements in fault detecting and indicating devices for electricity supply systems

Publications (1)

Publication Number Publication Date
GB1136827A true GB1136827A (en) 1968-12-18

Family

ID=9980572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1112966A Expired GB1136827A (en) 1966-03-14 1966-03-14 Improvements in fault detecting and indicating devices for electricity supply systems

Country Status (1)

Country Link
GB (1) GB1136827A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102594572A (en) * 2012-01-21 2012-07-18 华为技术有限公司 Anti-surge network equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102594572A (en) * 2012-01-21 2012-07-18 华为技术有限公司 Anti-surge network equipment

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