CH252220A - Network protection device. - Google Patents
Network protection device.Info
- Publication number
- CH252220A CH252220A CH252220DA CH252220A CH 252220 A CH252220 A CH 252220A CH 252220D A CH252220D A CH 252220DA CH 252220 A CH252220 A CH 252220A
- Authority
- CH
- Switzerland
- Prior art keywords
- protection device
- network protection
- network
- protection
- Prior art date
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
- H02H3/08—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 excess current
- H02H3/085—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 excess current making use of a thermal sensor, e.g. thermistor, heated by the excess current
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB252220X | 1943-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH252220A true CH252220A (en) | 1947-12-15 |
Family
ID=10224178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH252220D CH252220A (en) | 1943-04-23 | 1946-03-30 | Network protection device. |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE472807A (en) |
CH (1) | CH252220A (en) |
FR (1) | FR942456A (en) |
GB (1) | GB565134A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2802059A (en) * | 1954-07-08 | 1957-08-06 | Bell Telephone Labor Inc | Telephone ring-up circuit |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2914747A (en) * | 1953-01-30 | 1959-11-24 | Bell Telephone Labor Inc | Lockout circuits utilizing thermistor-gas tube combinations |
US3002128A (en) * | 1957-08-29 | 1961-09-26 | Gen Electric | Overload protective means for electrical apparatus |
FR2210000B1 (en) * | 1972-12-13 | 1976-01-30 | Saparel Fr |
-
0
- BE BE472807D patent/BE472807A/xx unknown
-
1943
- 1943-04-23 GB GB6564/43A patent/GB565134A/en not_active Expired
-
1946
- 1946-03-30 CH CH252220D patent/CH252220A/en unknown
- 1946-04-05 FR FR942456D patent/FR942456A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2802059A (en) * | 1954-07-08 | 1957-08-06 | Bell Telephone Labor Inc | Telephone ring-up circuit |
Also Published As
Publication number | Publication date |
---|---|
FR942456A (en) | 1949-02-09 |
GB565134A (en) | 1944-10-27 |
BE472807A (en) |
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