JPS5458814A - Induction moror direction of rotation detector and its detection - Google Patents
Induction moror direction of rotation detector and its detectionInfo
- Publication number
- JPS5458814A JPS5458814A JP12614077A JP12614077A JPS5458814A JP S5458814 A JPS5458814 A JP S5458814A JP 12614077 A JP12614077 A JP 12614077A JP 12614077 A JP12614077 A JP 12614077A JP S5458814 A JPS5458814 A JP S5458814A
- Authority
- JP
- Japan
- Prior art keywords
- polarity
- induction
- detection
- galvanometer
- current
- 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
Links
Landscapes
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To detect the polarity of induction volrage and determine the detection of rotation by applying DC current to a stator winding and displaying the induction voltage generated in an auxiliary winding on a galvanometer.
CONSTITUTION: Current is fed to the main winding W1 of an induction motor 3 from a DC power circuit 2 through a switching means 5 and a galvanometer 4 is connected to an auxiliary winding W3 through a polarity selecting changeover switch 6. Contacts (a) and (b) are closed and DC current is applied to the main winding W1 for a certain time. After a contact closes, a contact (c) closes and polarity power which is inverse to the residual magntic polarity is applied. The galvanometer 4 is deflected by electromotive force induced in the auxiliary winding W3 and the polarity of a motor 3 is detected to determine the direction of rotation. As a result, the detection, determination, and processing by all electric circuit systems without requiring the axial rotation of the motor 3 are enabled and detection accuracy can be imoproved
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52126140A JPS607914B2 (en) | 1977-10-19 | 1977-10-19 | How to detect rotation direction of induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52126140A JPS607914B2 (en) | 1977-10-19 | 1977-10-19 | How to detect rotation direction of induction motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5458814A true JPS5458814A (en) | 1979-05-11 |
JPS607914B2 JPS607914B2 (en) | 1985-02-27 |
Family
ID=14927654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52126140A Expired JPS607914B2 (en) | 1977-10-19 | 1977-10-19 | How to detect rotation direction of induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS607914B2 (en) |
-
1977
- 1977-10-19 JP JP52126140A patent/JPS607914B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS607914B2 (en) | 1985-02-27 |
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