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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP50103912ApriorityCriticalpatent/JPS5228651A/en
Publication of JPS5228651ApublicationCriticalpatent/JPS5228651A/en
PURPOSE: To perform normal function by increasing field current to improve system stability for exterior fault, and to restraint fault current by rapidly reducing excitation for interior fault.
COPYRIGHT: (C)1977,JPO&Japio
JP50103912A1975-08-291975-08-29Protection device for generator
PendingJPS5228651A
(en)