JPS5285343A - Ac-dc mixed contact detector - Google Patents

Ac-dc mixed contact detector

Info

Publication number
JPS5285343A
JPS5285343A JP122776A JP122776A JPS5285343A JP S5285343 A JPS5285343 A JP S5285343A JP 122776 A JP122776 A JP 122776A JP 122776 A JP122776 A JP 122776A JP S5285343 A JPS5285343 A JP S5285343A
Authority
JP
Japan
Prior art keywords
mixed contact
contact detector
mixed
contact trouble
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
JP122776A
Other languages
Japanese (ja)
Inventor
Hiroaki Inagaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP122776A priority Critical patent/JPS5285343A/en
Publication of JPS5285343A publication Critical patent/JPS5285343A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To detect promptly and certainly the mixed contact trouble by arranging the DC converter in the electric system having a large possibility that the mixed contact trouble is generated by the AC and the DC systems, for example, in all phases of the AC system of the electric railway system and by discriminating the secondary current value by the overcurrent relay.
COPYRIGHT: (C)1977,JPO&Japio
JP122776A 1976-01-07 1976-01-07 Ac-dc mixed contact detector Pending JPS5285343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP122776A JPS5285343A (en) 1976-01-07 1976-01-07 Ac-dc mixed contact detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP122776A JPS5285343A (en) 1976-01-07 1976-01-07 Ac-dc mixed contact detector

Publications (1)

Publication Number Publication Date
JPS5285343A true JPS5285343A (en) 1977-07-15

Family

ID=11495573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP122776A Pending JPS5285343A (en) 1976-01-07 1976-01-07 Ac-dc mixed contact detector

Country Status (1)

Country Link
JP (1) JPS5285343A (en)

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