JPS5689063A - Polarity discriminator of lightning stroke current - Google Patents

Polarity discriminator of lightning stroke current

Info

Publication number
JPS5689063A
JPS5689063A JP16571179A JP16571179A JPS5689063A JP S5689063 A JPS5689063 A JP S5689063A JP 16571179 A JP16571179 A JP 16571179A JP 16571179 A JP16571179 A JP 16571179A JP S5689063 A JPS5689063 A JP S5689063A
Authority
JP
Japan
Prior art keywords
current
polarity
coil
lightning stroke
red color
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
JP16571179A
Other languages
Japanese (ja)
Inventor
Fukumi Kaita
Goro Machida
Ichigo Shiobara
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.)
Chubu Electric Power Co Inc
NOF Corp
Original Assignee
Chubu Electric Power Co Inc
Nippon Oil and Fats 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 Chubu Electric Power Co Inc, Nippon Oil and Fats Co Ltd filed Critical Chubu Electric Power Co Inc
Priority to JP16571179A priority Critical patent/JPS5689063A/en
Publication of JPS5689063A publication Critical patent/JPS5689063A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To discriminate the polarity of lightning stroke current easily and make the displaying thereof identifiable from a remote place by connecting a diode to a flashover display device consisting of a coil and an electric ignition device.
CONSTITUTION: The flashover display device consists of a coil 1, an electric ignition means housed in a case 2, and a red color display cloth. When there is a lightning stroke in a steel tower 5 and current I flows, a filament 3 generates heat by the current induced in the coil 1 and ignites a gas generating composition 4, by the gaseous pressure whereof the red color display cloth is suspended. At this time, a high-speed diode 10 is connected in parallel between the coil 8 and the electric ignition device 9, by which the polarity of the lightning stroke current is discriminated. Hence, when the current I1 is of positive polarity, the device 9 operates and at the time of the current of negative polarity, it does not operate and this enables the polarity thereof to be discriminated easily. It is also possible to identify the same from a remote place by the red color display cloth.
COPYRIGHT: (C)1981,JPO&Japio
JP16571179A 1979-12-21 1979-12-21 Polarity discriminator of lightning stroke current Pending JPS5689063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16571179A JPS5689063A (en) 1979-12-21 1979-12-21 Polarity discriminator of lightning stroke current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16571179A JPS5689063A (en) 1979-12-21 1979-12-21 Polarity discriminator of lightning stroke current

Publications (1)

Publication Number Publication Date
JPS5689063A true JPS5689063A (en) 1981-07-20

Family

ID=15817598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16571179A Pending JPS5689063A (en) 1979-12-21 1979-12-21 Polarity discriminator of lightning stroke current

Country Status (1)

Country Link
JP (1) JPS5689063A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083114A (en) * 1989-09-28 1992-01-21 Ngk Insulators, Ltd. Ground fault indicating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083114A (en) * 1989-09-28 1992-01-21 Ngk Insulators, Ltd. Ground fault indicating device

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