JPS5422871A - Low frequency component detecting system - Google Patents
Low frequency component detecting systemInfo
- Publication number
- JPS5422871A JPS5422871A JP8743577A JP8743577A JPS5422871A JP S5422871 A JPS5422871 A JP S5422871A JP 8743577 A JP8743577 A JP 8743577A JP 8743577 A JP8743577 A JP 8743577A JP S5422871 A JPS5422871 A JP S5422871A
- Authority
- JP
- Japan
- Prior art keywords
- low frequency
- frequency component
- detecting system
- component detecting
- maximums
- 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 effect the correct detection by judging that the maximum, which is detected by comparing the time-sheared continuous sampling values, and the frequency obtainable from the maximums are higher or lower than preset values, respectively.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8743577A JPS5422871A (en) | 1977-07-22 | 1977-07-22 | Low frequency component detecting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8743577A JPS5422871A (en) | 1977-07-22 | 1977-07-22 | Low frequency component detecting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5422871A true JPS5422871A (en) | 1979-02-21 |
Family
ID=13914780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8743577A Pending JPS5422871A (en) | 1977-07-22 | 1977-07-22 | Low frequency component detecting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5422871A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5825162A (en) * | 1994-07-25 | 1998-10-20 | Hitachi, Ltd. | Electric power flow controller |
JP2016158477A (en) * | 2015-02-24 | 2016-09-01 | 日新電機株式会社 | Digital type protection relay |
-
1977
- 1977-07-22 JP JP8743577A patent/JPS5422871A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5825162A (en) * | 1994-07-25 | 1998-10-20 | Hitachi, Ltd. | Electric power flow controller |
JP2016158477A (en) * | 2015-02-24 | 2016-09-01 | 日新電機株式会社 | Digital type protection relay |
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