JPS5640764A - Measuring unit of lightning current - Google Patents

Measuring unit of lightning current

Info

Publication number
JPS5640764A
JPS5640764A JP11776479A JP11776479A JPS5640764A JP S5640764 A JPS5640764 A JP S5640764A JP 11776479 A JP11776479 A JP 11776479A JP 11776479 A JP11776479 A JP 11776479A JP S5640764 A JPS5640764 A JP S5640764A
Authority
JP
Japan
Prior art keywords
current
lightning
photo conversion
fed
electric
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
JP11776479A
Other languages
Japanese (ja)
Inventor
Yoshimasa Kimura
Satoshi Shiraishi
Hideyuki Takimoto
Koichi Tsujii
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.)
Kansai Electric Power Co Inc
Sumitomo Electric Industries Ltd
Original Assignee
Kansai Electric Power Co Inc
Sumitomo Electric Industries 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 Kansai Electric Power Co Inc, Sumitomo Electric Industries Ltd filed Critical Kansai Electric Power Co Inc
Priority to JP11776479A priority Critical patent/JPS5640764A/en
Publication of JPS5640764A publication Critical patent/JPS5640764A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To obtain the measuring value always high in the reliability, by checking the electric-photo conversion section of the current detector with the DC power supply of a constant current every lightning.
CONSTITUTION: The coil 1 detects the lightning current when lightning is present. The output of the coil 1 is fed to the electric photo conversion section 7 or 9 via the overvoltage protection gap 2, resistor 4, Zener diode and resistor 5. The illumination of the electric photo conversion section 7 or 9 is fed to the observing unit C via the optical fiber 15 or 16. The minicomputer 26 calculates the level of input signal and displays it. Simultaneously, a constant DC current is fed to the electric photo conversion sections 7 and 9 through the operation of the contol circuit 24, the illumination at that time is observed with the observing unit C and compared and calibrated at the minicomputer 26.
COPYRIGHT: (C)1981,JPO&Japio
JP11776479A 1979-09-12 1979-09-12 Measuring unit of lightning current Pending JPS5640764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11776479A JPS5640764A (en) 1979-09-12 1979-09-12 Measuring unit of lightning current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11776479A JPS5640764A (en) 1979-09-12 1979-09-12 Measuring unit of lightning current

Publications (1)

Publication Number Publication Date
JPS5640764A true JPS5640764A (en) 1981-04-17

Family

ID=14719737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11776479A Pending JPS5640764A (en) 1979-09-12 1979-09-12 Measuring unit of lightning current

Country Status (1)

Country Link
JP (1) JPS5640764A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57189079A (en) * 1981-05-15 1982-11-20 Hokuriku Electric Power Co Inc:The Calibrating device for measurement of lightning stroke current
JPS6042972U (en) * 1983-08-31 1985-03-26 パイオニア株式会社 current detection circuit
JPS6433077U (en) * 1987-08-21 1989-03-01
JP2014048188A (en) * 2012-08-31 2014-03-17 Bekutoru:Kk Current sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448413A (en) * 1977-09-26 1979-04-17 Hitachi Ltd Photo delivery method of analog signal
JPS54107780A (en) * 1978-02-10 1979-08-23 Sumitomo Electric Ind Ltd Electric shock current measuring apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448413A (en) * 1977-09-26 1979-04-17 Hitachi Ltd Photo delivery method of analog signal
JPS54107780A (en) * 1978-02-10 1979-08-23 Sumitomo Electric Ind Ltd Electric shock current measuring apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57189079A (en) * 1981-05-15 1982-11-20 Hokuriku Electric Power Co Inc:The Calibrating device for measurement of lightning stroke current
JPS6042972U (en) * 1983-08-31 1985-03-26 パイオニア株式会社 current detection circuit
JPS6433077U (en) * 1987-08-21 1989-03-01
JP2014048188A (en) * 2012-08-31 2014-03-17 Bekutoru:Kk Current sensor

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