JPS6489124A - Operation watch device of power switch - Google Patents
Operation watch device of power switchInfo
- Publication number
- JPS6489124A JPS6489124A JP62243874A JP24387487A JPS6489124A JP S6489124 A JPS6489124 A JP S6489124A JP 62243874 A JP62243874 A JP 62243874A JP 24387487 A JP24387487 A JP 24387487A JP S6489124 A JPS6489124 A JP S6489124A
- Authority
- JP
- Japan
- Prior art keywords
- time
- starting
- current
- throwing
- counting
- 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
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
PURPOSE:To grasp the rising up time of detecting current accurately while eliminating the error from a ripple current by starting the counting when the detecting current reaches a specific value after the starting, and adding the time up to the count starting. CONSTITUTION:The necessary time after the operation order of a throwing-in or throwing-out of a switch is issued is detected by counting the control pulse current. The pulse currents of the throwing-in and the throwing-off are generated in pulse restoration circuits 8a and 8b respectively, and the counting is stopped when the operation is over respectively. Since the restoration circuits 8a and 8b are formed to issue the rectangular wave when the detected control current comes to be a specific value I rel larger than the ripple current after the starting, the error detection from the ripple current at the starting time is prevented. The time T0 from the starting of the control current to a specific value I rel can be found simply experimentally. By adding the time T0, the operation time of the switch can be counted accurately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243874A JPS6489124A (en) | 1987-09-30 | 1987-09-30 | Operation watch device of power switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243874A JPS6489124A (en) | 1987-09-30 | 1987-09-30 | Operation watch device of power switch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489124A true JPS6489124A (en) | 1989-04-03 |
Family
ID=17110264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243874A Pending JPS6489124A (en) | 1987-09-30 | 1987-09-30 | Operation watch device of power switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489124A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0495321A (en) * | 1990-07-31 | 1992-03-27 | Fuji Electric Co Ltd | Diagnostic apparatus for switch operation |
KR101106587B1 (en) * | 2009-02-26 | 2012-01-20 | 주식회사 한국큐빅 | Method for manufacturing color changeable panel by temperature |
-
1987
- 1987-09-30 JP JP62243874A patent/JPS6489124A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0495321A (en) * | 1990-07-31 | 1992-03-27 | Fuji Electric Co Ltd | Diagnostic apparatus for switch operation |
KR101106587B1 (en) * | 2009-02-26 | 2012-01-20 | 주식회사 한국큐빅 | Method for manufacturing color changeable panel by temperature |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6489124A (en) | Operation watch device of power switch | |
JPS56163835A (en) | Detecting device for electric discharge machining state | |
JPS5611351A (en) | Time division-type multifrequency eddy current | |
JPS52137309A (en) | Head runaway detection circuit | |
JPS5215372A (en) | Electronic watch | |
JPS5449059A (en) | Ac zero-volt switch circuit | |
JPS6414832A (en) | Electrode consumption rate measuring device for power breaker | |
JPS5393330A (en) | Inverter control | |
JPS54131200A (en) | Electrospark machine | |
JPS6460224A (en) | Excess current detection circuit for inverter device | |
JPS5720845A (en) | Data protecting system | |
JPS5350431A (en) | Abnormality detecting circuit for thyristor converter | |
JPS5619475A (en) | Electronic timepiece with battery life display | |
JPS532741A (en) | Inductive heating unit | |
JPS53110874A (en) | Electronic watch | |
JPS5347949A (en) | Arc extinguishing detection circuit | |
JPS5323669A (en) | Small electronic device | |
JPS6422154A (en) | Call signal circuit | |
JPS5485368A (en) | Switching power circuit | |
JPS52118545A (en) | Power source reset circuit | |
JPS5219956A (en) | Relay drive circuit | |
JPS5523549A (en) | Electric device | |
JPS51115870A (en) | Alternate current rapid change detecting relay | |
JPS529475A (en) | Magnetic detector | |
JPS53144781A (en) | Alternating current voltage detecting circuit |