JPS5686365A - Salt injury predicting device - Google Patents
Salt injury predicting deviceInfo
- Publication number
- JPS5686365A JPS5686365A JP16322079A JP16322079A JPS5686365A JP S5686365 A JPS5686365 A JP S5686365A JP 16322079 A JP16322079 A JP 16322079A JP 16322079 A JP16322079 A JP 16322079A JP S5686365 A JPS5686365 A JP S5686365A
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- switch
- capacitor
- voltage
- circuit
- 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
Abstract
PURPOSE: To ensure an easy and accurate measurement of salt injury, by measuring the time in which the terminal voltage of a capacitor descends to a specified value via a pilot insulator which is connected in parallel to a capacitor charged up to a fixed level of voltage and then measuring the insulating resistance of an insulator.
CONSTITUTION: The current is always flowed on the pilot insulator 20 via the AC power source 21 and the switch 17c to keep the same state as an actual insulator. During the measurement, the switch 11 is turned on by the command given from the control circuit 16, and the capacitor 13 is charged by the DC power source 10. The voltage of the voltmeter 14 reaches the setting value E1 to be detected by the deteting means 15a, and the switch 11 is opened with the signal S1 via the circuit 16. At the same time, the change-over switch 17c is opened and the switch 17b is closed, and then the capacitor 13 is discharged via the resistance 19 and the insulator 20. When the voltage reaches the specified value E2, the signal S2 is sent to the circuit 16 from the detecting means 15b. And the discharge time is counted by the counter 18, thus ensuring an easy and accurate measurement of the insulating resistance of an insulator.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16322079A JPS5686365A (en) | 1979-12-15 | 1979-12-15 | Salt injury predicting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16322079A JPS5686365A (en) | 1979-12-15 | 1979-12-15 | Salt injury predicting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5686365A true JPS5686365A (en) | 1981-07-14 |
| JPS6131429B2 JPS6131429B2 (en) | 1986-07-19 |
Family
ID=15769585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16322079A Granted JPS5686365A (en) | 1979-12-15 | 1979-12-15 | Salt injury predicting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5686365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562390A (en) * | 1983-10-05 | 1985-12-31 | Hitachi, Ltd. | Insulation resistance measurement in static leonard apparatus |
| JPS6172874A (en) * | 1984-09-17 | 1986-04-14 | ルイジ・トツジ | Plasma-jet igniter |
| JP5705382B1 (en) * | 2013-11-22 | 2015-04-22 | 三菱電機株式会社 | Insulation detector and electrical equipment |
-
1979
- 1979-12-15 JP JP16322079A patent/JPS5686365A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562390A (en) * | 1983-10-05 | 1985-12-31 | Hitachi, Ltd. | Insulation resistance measurement in static leonard apparatus |
| JPS6172874A (en) * | 1984-09-17 | 1986-04-14 | ルイジ・トツジ | Plasma-jet igniter |
| JPS6337266B2 (en) * | 1984-09-17 | 1988-07-25 | Totsuji Ruiji | |
| JP5705382B1 (en) * | 2013-11-22 | 2015-04-22 | 三菱電機株式会社 | Insulation detector and electrical equipment |
| WO2015075821A1 (en) * | 2013-11-22 | 2015-05-28 | 三菱電機株式会社 | Insulation detector and electrical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6131429B2 (en) | 1986-07-19 |
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