GB256117A - Improvements in or relating to automatic reclosing circuit breaker systems - Google Patents
Improvements in or relating to automatic reclosing circuit breaker systemsInfo
- Publication number
- GB256117A GB256117A GB3234525A GB3234525A GB256117A GB 256117 A GB256117 A GB 256117A GB 3234525 A GB3234525 A GB 3234525A GB 3234525 A GB3234525 A GB 3234525A GB 256117 A GB256117 A GB 256117A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- breaker
- circuit
- resistance
- series
- 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
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
256,117. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 22, 1925. Cut-out arrangements.-In an automaticallyreclosing circuit-breaker system, when the main circuit-breaker 2 opens on overload due to the opening of its holding coil 3 by the action of the overload relay 5 carrying a series coil 6, the relay is held open by a holding-out coil 7 and back contacts 9 on the circuit-breaker connect a low resistance R<2> in parallel with the load. The coil 7 is in shunt with the circuit-breaker and when the circuit-breaker is open is in series with the load. A relatively-high resistance R<1> is connected in series jointly with the coil 7 and the resistance R<2>. When, after the circuit-breaker has been released to assume the open position, the resistance of the load increases sufficiently in relation to the parallel resistance R<2> the current in the coil 7 in series with the load decreases to the point at which it is inadequate to hold out the overload relay 5 which closes and completes the closing circuit of the main circuit-breaker. The coil 7 instead of being arranged on the overload relay may be the operating coil of a separate holding-out relay with its contacts in the lead 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3234525A GB256117A (en) | 1925-12-22 | 1925-12-22 | Improvements in or relating to automatic reclosing circuit breaker systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3234525A GB256117A (en) | 1925-12-22 | 1925-12-22 | Improvements in or relating to automatic reclosing circuit breaker systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB256117A true GB256117A (en) | 1926-08-05 |
Family
ID=10337172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3234525A Expired GB256117A (en) | 1925-12-22 | 1925-12-22 | Improvements in or relating to automatic reclosing circuit breaker systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB256117A (en) |
-
1925
- 1925-12-22 GB GB3234525A patent/GB256117A/en not_active Expired
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