JPS5327460A - Measuring system for change-over time of trolley line - Google Patents

Measuring system for change-over time of trolley line

Info

Publication number
JPS5327460A
JPS5327460A JP10164076A JP10164076A JPS5327460A JP S5327460 A JPS5327460 A JP S5327460A JP 10164076 A JP10164076 A JP 10164076A JP 10164076 A JP10164076 A JP 10164076A JP S5327460 A JPS5327460 A JP S5327460A
Authority
JP
Japan
Prior art keywords
change
over time
trolley line
measuring system
voltage
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.)
Granted
Application number
JP10164076A
Other languages
Japanese (ja)
Other versions
JPS5814992B2 (en
Inventor
Orinobu Murata
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 JP10164076A priority Critical patent/JPS5814992B2/en
Publication of JPS5327460A publication Critical patent/JPS5327460A/en
Publication of JPS5814992B2 publication Critical patent/JPS5814992B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Unknown Time Intervals (AREA)

Abstract

PURPOSE: To enhance the precision in the change-over time measurement of a trolley line by producing the multiplied waves of the current or voltage of a pantagraph system so that the variation in amplituede of the voltage and the inversion of the phase of the current during the half cycle may be detected.
COPYRIGHT: (C)1978,JPO&Japio
JP10164076A 1976-08-27 1976-08-27 Trolley wire switching time measuring device Expired JPS5814992B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10164076A JPS5814992B2 (en) 1976-08-27 1976-08-27 Trolley wire switching time measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10164076A JPS5814992B2 (en) 1976-08-27 1976-08-27 Trolley wire switching time measuring device

Publications (2)

Publication Number Publication Date
JPS5327460A true JPS5327460A (en) 1978-03-14
JPS5814992B2 JPS5814992B2 (en) 1983-03-23

Family

ID=14305972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10164076A Expired JPS5814992B2 (en) 1976-08-27 1976-08-27 Trolley wire switching time measuring device

Country Status (1)

Country Link
JP (1) JPS5814992B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59193594U (en) * 1983-06-08 1984-12-22 船越　充 pipe cleaner
JPS60136787U (en) * 1984-02-20 1985-09-11 株式会社クボタ Air blowing device to the inner surface of the pipe

Also Published As

Publication number Publication date
JPS5814992B2 (en) 1983-03-23

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