JPS4220811B1 - - Google Patents
Info
- Publication number
- JPS4220811B1 JPS4220811B1 JP5577265A JP5577265A JPS4220811B1 JP S4220811 B1 JPS4220811 B1 JP S4220811B1 JP 5577265 A JP5577265 A JP 5577265A JP 5577265 A JP5577265 A JP 5577265A JP S4220811 B1 JPS4220811 B1 JP S4220811B1
- Authority
- JP
- Japan
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/46—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to frequency deviations
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US396314A US3337777A (en) | 1964-09-14 | 1964-09-14 | Frequency responsive device utilizing a saturable core reactor and scr means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4220811B1 true JPS4220811B1 (ja) | 1967-10-17 |
Family
ID=23566740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5577265A Pending JPS4220811B1 (ja) | 1964-09-14 | 1965-09-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3337777A (ja) |
| JP (1) | JPS4220811B1 (ja) |
| CH (1) | CH428943A (ja) |
| DE (1) | DE1513713A1 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467835A (en) * | 1965-09-08 | 1969-09-16 | Warwick Electronics Inc | Remote control switch responsive to superimposed power line frequency |
| US3703717A (en) * | 1971-01-11 | 1972-11-21 | Gte Automatic Electric Lab Inc | Voltage/frequency ratio monitor for a. c. signals |
| US4475140A (en) * | 1983-02-25 | 1984-10-02 | Day Harry W | Switching amplifier with high impedance input |
| EP2884233B1 (de) * | 2013-12-16 | 2021-09-01 | Eaton Intelligent Power Limited | Messgrößenerfassung im elektromagnetischen Antrieb eines Schaltgeräts |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2483053A (en) * | 1948-01-21 | 1949-09-27 | Gunter H Isay | Remotely controlled receiver |
| US2757320A (en) * | 1953-10-15 | 1956-07-31 | Westinghouse Electric Corp | Frequency sensitive control device |
| US3075127A (en) * | 1960-09-26 | 1963-01-22 | Lear Siegler Inc | Alternating current frequency sensing and indicating circuit |
| US3209212A (en) * | 1961-01-11 | 1965-09-28 | Westinghouse Electric Corp | Frequency responsive control device |
| US3181032A (en) * | 1962-03-12 | 1965-04-27 | Collins Radio Co | Circuit overload responsive shutoff system with relay driving energy storage |
-
1964
- 1964-09-14 US US396314A patent/US3337777A/en not_active Expired - Lifetime
-
1965
- 1965-08-26 DE DE19651513713 patent/DE1513713A1/de active Pending
- 1965-09-03 CH CH1234065A patent/CH428943A/de unknown
- 1965-09-13 JP JP5577265A patent/JPS4220811B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1513713A1 (de) | 1969-11-27 |
| US3337777A (en) | 1967-08-22 |
| CH428943A (de) | 1967-01-31 |