GB314351A - Improvements in and relating to high voltage cable testing systems - Google Patents

Improvements in and relating to high voltage cable testing systems

Info

Publication number
GB314351A
GB314351A GB19513/29A GB1951329A GB314351A GB 314351 A GB314351 A GB 314351A GB 19513/29 A GB19513/29 A GB 19513/29A GB 1951329 A GB1951329 A GB 1951329A GB 314351 A GB314351 A GB 314351A
Authority
GB
United Kingdom
Prior art keywords
winding
high voltage
voltage
condensers
transformers
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
GB19513/29A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB314351A publication Critical patent/GB314351A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

314,351. British Thomson-Houston Co., Ltd., (Assignees of Hubbard, H. S.). June 25, 1928, [Convention date]. Vapour and vacuum or low-pressure apparatus, arrangements of. - Apparatus for testing the insulation resistance of cables &c. by the application of a high direct-current voltage comprises an insulated transformer winding, a capacity load connected in series with the winding, and a vacuum tube rectifier connected between each end of the winding and the load. In the construction shown, the insulated secondary windings of transformers 18, 19 are connected in series through rectifying valves 20 - - 27 whereby a high voltage direct current may be applied to a cable, shown as a capacity 4. The voltage across each of the rectifiers 21, 22, 25, 26 adjacent to the transformers is equalized by balancing-condensers 28 - - 31 when two rectifying valves are connected to each end of the windings. In order to maintain the proper voltage distribution over the transformer, stabilizing condensers 32 - - 35 are connected either between one end or the centre of the secondary winding and earth, or in parallel with the secondary winding or in combinations of these arrangements.
GB19513/29A 1928-06-25 1929-06-25 Improvements in and relating to high voltage cable testing systems Expired GB314351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US314351XA 1928-06-25 1928-06-25

Publications (1)

Publication Number Publication Date
GB314351A true GB314351A (en) 1930-08-21

Family

ID=21859435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19513/29A Expired GB314351A (en) 1928-06-25 1929-06-25 Improvements in and relating to high voltage cable testing systems

Country Status (1)

Country Link
GB (1) GB314351A (en)

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