JPS5790165A - Measuring device for light system high-voltage machinery - Google Patents

Measuring device for light system high-voltage machinery

Info

Publication number
JPS5790165A
JPS5790165A JP55167038A JP16703880A JPS5790165A JP S5790165 A JPS5790165 A JP S5790165A JP 55167038 A JP55167038 A JP 55167038A JP 16703880 A JP16703880 A JP 16703880A JP S5790165 A JPS5790165 A JP S5790165A
Authority
JP
Japan
Prior art keywords
photo
fiber
voltage
spiral
support member
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.)
Pending
Application number
JP55167038A
Other languages
Japanese (ja)
Inventor
Kenichi Okuyama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55167038A priority Critical patent/JPS5790165A/en
Publication of JPS5790165A publication Critical patent/JPS5790165A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE:To prevent the production of a flashover from a high-voltage part through a photo fiber, by a method wherein a photo fiber, transmitting a photo signal between a detecting element and a detector, is wound in a spiral around an insulating support member to lengthen the length of the photo fiber. CONSTITUTION:A photo fiber 5 is wound in a spiral 1 from a detecting element 4, being of a high-voltage part and placed on a surface of a cone-shaped insulating support member 1 in the proximity of a high-voltage conductor 2, to the outside of a ground sheath 3 to form it such that the total length is lengthened. The photo fiber 5 is housed in a spiral recess 7 in the surface of the insulating support member 1, and the pitch of the recess at a high-voltage side is narrowed and the pitch at an earthing side widened. This permits a potential frequency of the photo fiber 5 in a longitudinal direction to be sharply reduced, and the spiral winding permits the passage of a photo signal through a part being approximately similar to the potential in the longitudinal direction, which results in enabling the improvement of a flashover in the longitudinal direction.
JP55167038A 1980-11-27 1980-11-27 Measuring device for light system high-voltage machinery Pending JPS5790165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55167038A JPS5790165A (en) 1980-11-27 1980-11-27 Measuring device for light system high-voltage machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55167038A JPS5790165A (en) 1980-11-27 1980-11-27 Measuring device for light system high-voltage machinery

Publications (1)

Publication Number Publication Date
JPS5790165A true JPS5790165A (en) 1982-06-04

Family

ID=15842227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55167038A Pending JPS5790165A (en) 1980-11-27 1980-11-27 Measuring device for light system high-voltage machinery

Country Status (1)

Country Link
JP (1) JPS5790165A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61169434U (en) * 1985-04-08 1986-10-21
JPS61171426U (en) * 1985-04-13 1986-10-24
JPS61180548U (en) * 1985-04-27 1986-11-11

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61169434U (en) * 1985-04-08 1986-10-21
JPS61171426U (en) * 1985-04-13 1986-10-24
JPS61180548U (en) * 1985-04-27 1986-11-11

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