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.)
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 CorpfiledCriticalMitsubishi Electric Corp
Priority to JP7518777ApriorityCriticalpatent/JPS549751A/en
Publication of JPS549751ApublicationCriticalpatent/JPS549751A/en
PURPOSE: To attempt realization of high reliability as well as efficient use of transmission line, by providing interchangeability between the transmission line for protective action and that for some other objective.