FR1532935A - Protection system for electrical circuits - Google Patents
Protection system for electrical circuitsInfo
- Publication number
- FR1532935A FR1532935A FR116063A FR116063A FR1532935A FR 1532935 A FR1532935 A FR 1532935A FR 116063 A FR116063 A FR 116063A FR 116063 A FR116063 A FR 116063A FR 1532935 A FR1532935 A FR 1532935A
- Authority
- FR
- France
- Prior art keywords
- protection system
- electrical circuits
- circuits
- electrical
- protection
- 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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/14—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for differential operation of the relay
-
- 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
- H02H3/16—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 fault current to earth, frame or mass
- H02H3/167—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 fault current to earth, frame or mass combined with other earth-fault protective arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR116063A FR1532935A (en) | 1964-11-18 | 1967-07-28 | Protection system for electrical circuits |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US412054A US3337771A (en) | 1964-11-18 | 1964-11-18 | Electrical apparatus |
FR116063A FR1532935A (en) | 1964-11-18 | 1967-07-28 | Protection system for electrical circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1532935A true FR1532935A (en) | 1968-07-12 |
Family
ID=26178471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR116063A Expired FR1532935A (en) | 1964-11-18 | 1967-07-28 | Protection system for electrical circuits |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1532935A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2077243A1 (en) * | 1970-01-21 | 1971-10-22 | Hubbell Inc Harvey | |
FR2454198A2 (en) * | 1979-04-09 | 1980-11-07 | Osmond Max | Enhanced sensitivity earth leakage cut=out - has toroidal transformer with differential line and neutral windings |
-
1967
- 1967-07-28 FR FR116063A patent/FR1532935A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2077243A1 (en) * | 1970-01-21 | 1971-10-22 | Hubbell Inc Harvey | |
FR2454198A2 (en) * | 1979-04-09 | 1980-11-07 | Osmond Max | Enhanced sensitivity earth leakage cut=out - has toroidal transformer with differential line and neutral windings |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1393636A (en) | Switching adapter for transmission system | |
FR83360E (en) | Selection system for circuits or electrical equipment | |
CH446445A (en) | Electronic telecommunication system | |
FR85319E (en) | Selection system for circuits or electrical equipment | |
FR1395817A (en) | Device for connecting conductors | |
FR1532935A (en) | Protection system for electrical circuits | |
FR1378703A (en) | Device for the transmission of electric currents | |
FR82988E (en) | Selection system for circuits or electrical equipment | |
FR1420765A (en) | Selection device for electrical circuits or equipment | |
FR81352E (en) | Selection system for circuits or electrical equipment | |
FR1296679A (en) | Selection system for circuits or electrical equipment | |
FR1421236A (en) | Selective protection system for electrical networks | |
FR1386331A (en) | Selection system for circuits or electrical equipment | |
FR1433013A (en) | Protection circuit for alternator-rectifier system | |
FR1401289A (en) | Fault detection and elimination system for electrical circuits | |
FR1354833A (en) | Selection system for circuits or electrical equipment | |
FR1418686A (en) | Selection system for circuits or electrical equipment | |
FR1367441A (en) | Selection system for circuits or electrical equipment | |
FR1389485A (en) | Selection system for circuits or electrical equipment | |
FR1418264A (en) | Improved device for passing through partitions for electrical conductors | |
FR1535121A (en) | Protection device for electrical networks | |
FR1426632A (en) | Device for electric circuit breakers | |
FR1316391A (en) | Protection relay system for three-phase electrical circuits | |
FR82112E (en) | Selection system for circuits or electrical equipment | |
FR83736E (en) | Selection system for circuits or electrical equipment |