JPS5327463A - Measuring system for abnormal voltage of trolley line - Google Patents

Measuring system for abnormal voltage of trolley line

Info

Publication number
JPS5327463A
JPS5327463A JP10164476A JP10164476A JPS5327463A JP S5327463 A JPS5327463 A JP S5327463A JP 10164476 A JP10164476 A JP 10164476A JP 10164476 A JP10164476 A JP 10164476A JP S5327463 A JPS5327463 A JP S5327463A
Authority
JP
Japan
Prior art keywords
measuring system
abnormal voltage
trolley line
voltage
dividing
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
JP10164476A
Other languages
Japanese (ja)
Inventor
Orinobu Murata
Hikoshiro Furukawa
Tsunetaka Kusumoto
Hiroaki Gomi
Senyuu Hourai
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Ltd
Japan National Railways
Hitachi High Tech Corp
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Hitachi Ltd
Japan National Railways
Hitachi Electronics Engineering 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 JAPANESE NATIONAL RAILWAYS<JNR>, Hitachi Ltd, Japan National Railways, Hitachi Electronics Engineering Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP10164476A priority Critical patent/JPS5327463A/en
Publication of JPS5327463A publication Critical patent/JPS5327463A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect the maximum turnover level at every half period of a fundamental frequency and to print out the measured value and the generaing point by dividing again the measure voltage, which is obtained by a voltage-dividing circuit connected directly to a pantagraph, and by using alternately two peak hold circuits.
COPYRIGHT: (C)1978,JPO&Japio
JP10164476A 1976-08-27 1976-08-27 Measuring system for abnormal voltage of trolley line Pending JPS5327463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10164476A JPS5327463A (en) 1976-08-27 1976-08-27 Measuring system for abnormal voltage of trolley line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10164476A JPS5327463A (en) 1976-08-27 1976-08-27 Measuring system for abnormal voltage of trolley line

Publications (1)

Publication Number Publication Date
JPS5327463A true JPS5327463A (en) 1978-03-14

Family

ID=14306076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10164476A Pending JPS5327463A (en) 1976-08-27 1976-08-27 Measuring system for abnormal voltage of trolley line

Country Status (1)

Country Link
JP (1) JPS5327463A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5629175A (en) * 1979-08-17 1981-03-23 Japanese National Railways<Jnr> Measuring device of trolley line abnormal voltage
JPS57207867A (en) * 1981-06-17 1982-12-20 Hitachi Ltd High resolution peak value measuring circuit by expansion of differential voltage
JPS58175227A (en) * 1982-04-06 1983-10-14 松下電器産業株式会社 Temperature switch
JPS59109869A (en) * 1982-12-16 1984-06-25 Hioki Denki Kk Signal recording device
JPS60142271A (en) * 1983-12-28 1985-07-27 Hioki Denki Kk Peak value measuring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5629175A (en) * 1979-08-17 1981-03-23 Japanese National Railways<Jnr> Measuring device of trolley line abnormal voltage
JPS57207867A (en) * 1981-06-17 1982-12-20 Hitachi Ltd High resolution peak value measuring circuit by expansion of differential voltage
JPS58175227A (en) * 1982-04-06 1983-10-14 松下電器産業株式会社 Temperature switch
JPS59109869A (en) * 1982-12-16 1984-06-25 Hioki Denki Kk Signal recording device
JPS60142271A (en) * 1983-12-28 1985-07-27 Hioki Denki Kk Peak value measuring device

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