JPS52154059A - Protective device for dc motor - Google Patents
Protective device for dc motorInfo
- Publication number
- JPS52154059A JPS52154059A JP7120376A JP7120376A JPS52154059A JP S52154059 A JPS52154059 A JP S52154059A JP 7120376 A JP7120376 A JP 7120376A JP 7120376 A JP7120376 A JP 7120376A JP S52154059 A JPS52154059 A JP S52154059A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- protective device
- breaker
- trip
- enhance
- 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
Links
Abstract
PURPOSE: To enhance a reliability by such that with a breaker of magnet trip type inserted into the main circuit, a current flowing at the time of DC motor stopping be detected to trip the breaker by a condition of AND operation with the stop signal.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7120376A JPS52154059A (en) | 1976-06-18 | 1976-06-18 | Protective device for dc motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7120376A JPS52154059A (en) | 1976-06-18 | 1976-06-18 | Protective device for dc motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52154059A true JPS52154059A (en) | 1977-12-21 |
Family
ID=13453872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7120376A Pending JPS52154059A (en) | 1976-06-18 | 1976-06-18 | Protective device for dc motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52154059A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5495347A (en) * | 1978-01-13 | 1979-07-27 | Hitachi Ltd | Appartus for preventing burning of motor field coil |
JPS57132728A (en) * | 1981-02-06 | 1982-08-17 | Hitachi Ltd | Device for protecting rolling machine motor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4827702U (en) * | 1971-08-07 | 1973-04-04 |
-
1976
- 1976-06-18 JP JP7120376A patent/JPS52154059A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4827702U (en) * | 1971-08-07 | 1973-04-04 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5495347A (en) * | 1978-01-13 | 1979-07-27 | Hitachi Ltd | Appartus for preventing burning of motor field coil |
JPS57132728A (en) * | 1981-02-06 | 1982-08-17 | Hitachi Ltd | Device for protecting rolling machine motor |
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