GB337119A - Improvements in or relating to electric relays - Google Patents
Improvements in or relating to electric relaysInfo
- Publication number
- GB337119A GB337119A GB2690729A GB2690729A GB337119A GB 337119 A GB337119 A GB 337119A GB 2690729 A GB2690729 A GB 2690729A GB 2690729 A GB2690729 A GB 2690729A GB 337119 A GB337119 A GB 337119A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric relays
- relays
- electric
- 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.)
- Expired
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
- H02H3/40—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 ratio of voltage and current
- H02H3/407—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 ratio of voltage and current using induction relays
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2690729A GB337119A (en) | 1929-09-04 | 1929-09-04 | Improvements in or relating to electric relays |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2690729A GB337119A (en) | 1929-09-04 | 1929-09-04 | Improvements in or relating to electric relays |
Publications (1)
Publication Number | Publication Date |
---|---|
GB337119A true GB337119A (en) | 1930-10-30 |
Family
ID=10251086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2690729A Expired GB337119A (en) | 1929-09-04 | 1929-09-04 | Improvements in or relating to electric relays |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB337119A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2697187A (en) * | 1951-10-13 | 1954-12-14 | Westinghouse Electric Corp | Induction type alternating-current relay |
US2752539A (en) * | 1952-03-05 | 1956-06-26 | Westinghouse Electric Corp | Induction-type alternating-current relays |
US2797369A (en) * | 1953-04-23 | 1957-06-25 | Gen Electric | Quick reset induction time delay device |
-
1929
- 1929-09-04 GB GB2690729A patent/GB337119A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2697187A (en) * | 1951-10-13 | 1954-12-14 | Westinghouse Electric Corp | Induction type alternating-current relay |
US2752539A (en) * | 1952-03-05 | 1956-06-26 | Westinghouse Electric Corp | Induction-type alternating-current relays |
US2797369A (en) * | 1953-04-23 | 1957-06-25 | Gen Electric | Quick reset induction time delay device |
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