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.)
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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 JP415577ApriorityCriticalpatent/JPS5389930A/en
Publication of JPS5389930ApublicationCriticalpatent/JPS5389930A/en
PURPOSE: To save a loss, at the time of low speed, to a small degree, by means of inserinsertably providing a frequency converter of constant ratio of frequency conversion in a route before or after the primary voltage control circuit, with a frequency control so as to be also operated.
COPYRIGHT: (C)1978,JPO&Japio
JP415577A1977-01-181977-01-18Speed controller for induction motor
PendingJPS5389930A
(en)