GB361013A - Improvements in or relating to electric testing appliances - Google Patents

Improvements in or relating to electric testing appliances

Info

Publication number
GB361013A
GB361013A GB2590130A GB2590130A GB361013A GB 361013 A GB361013 A GB 361013A GB 2590130 A GB2590130 A GB 2590130A GB 2590130 A GB2590130 A GB 2590130A GB 361013 A GB361013 A GB 361013A
Authority
GB
United Kingdom
Prior art keywords
switch
neon lamp
inner casing
neon
mains
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
GB2590130A
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.)
WILLIAM CLYNE TAYLOR
Original Assignee
WILLIAM CLYNE TAYLOR
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 WILLIAM CLYNE TAYLOR filed Critical WILLIAM CLYNE TAYLOR
Priority to GB2590130A priority Critical patent/GB361013A/en
Publication of GB361013A publication Critical patent/GB361013A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

361,013. Current detectors; indicating faults ; instrument casings. LEE, E. L. and TAYLOR, W. C., 25, Victoria Street, London. Aug. 29, 1930, No. 25901. [Class 37.1 A fault detector comprises a neon lamp, one or more resistances and a switch, all located within a casing and connected so that different installation tests may be carried out, as well as an independent test of the neon tube. As shown, Fig. 4, the switch contacts are contained within an inner casing 44 provided with a boss 56 engaging a coverplate 51 through which the spindle switch 47 projects. The neon lamp 46 is held in clips 45 mounted on the inner casing 44, and is viewed through an aperture 53 in the cover-plate. Terminals 13 are mounted on the inner casing, a screw-threaded boss 58 in the cover-plate being provided for passage of the leads. The space between the inner and outer casings may be filled with oil. With the connections shown in Fig. 1, leakage between mains 25 and earth is detected, equal resistance 11, 12 being placed across the mains with the tube and resistance 27 in series to earth. In the other position of the switch the neon lamp can be tested independently. In a modification, a three-way switch may be employed permitting the testing of a " dead " circuit by providing a live connection. Tests on alternating-current lines are made through balanced transformers preferably provided with magnetic shunts to prevent the neon lamp being damaged.
GB2590130A 1930-08-29 1930-08-29 Improvements in or relating to electric testing appliances Expired GB361013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2590130A GB361013A (en) 1930-08-29 1930-08-29 Improvements in or relating to electric testing appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2590130A GB361013A (en) 1930-08-29 1930-08-29 Improvements in or relating to electric testing appliances

Publications (1)

Publication Number Publication Date
GB361013A true GB361013A (en) 1931-11-19

Family

ID=10235179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2590130A Expired GB361013A (en) 1930-08-29 1930-08-29 Improvements in or relating to electric testing appliances

Country Status (1)

Country Link
GB (1) GB361013A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151031A (en) * 1983-12-07 1985-07-10 Seba Mess Ortungstech Measuring apparatus for location of cable defects

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151031A (en) * 1983-12-07 1985-07-10 Seba Mess Ortungstech Measuring apparatus for location of cable defects

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