GB227930A - Improvements in or relating to electric protective arrangements - Google Patents
Improvements in or relating to electric protective arrangementsInfo
- Publication number
- GB227930A GB227930A GB2683023A GB2683023A GB227930A GB 227930 A GB227930 A GB 227930A GB 2683023 A GB2683023 A GB 2683023A GB 2683023 A GB2683023 A GB 2683023A GB 227930 A GB227930 A GB 227930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feeder
- winding
- relay
- faulty
- split
- 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
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/267—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for parallel lines and wires
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
227,930. Reyrolle & Co., Ltd., A., and Leeson, B. H. Oct. 26, 1923. Protective arrangements. - In order to indicate the faulty feeder in a split-conductor system, the relay which trips out the parallel feeders is provided with a polarizing winding to give a directional movement to its movable member, depending on the direction of the flux in the core of the split-conductor transformer. In the polyphase system shown the split conductors C, C<1> are surrounded by a transformer core E- carrying a secondary winding G connected to the relay winding J<1>. The pivoted relay armature J<2> is provided with a polarizing winding J<3> fed from a potential transformer K K' connected across the lines A - - C. The direction of the flux in the core E<2> corresponding to a faulty condition of either feeder causes the arm J<2> to rock in one or other direction so operating bridging contact J<4> or J<5> to energise the circuitbreaker trip coil O. Indicators M M<1> are provided to denote which pair of fixed relay contacts have been bridged and, consequently which feeder is faulty. Before the sound feeder is switched again into the circuit the isolating switch F<1> or F<2> in the faulty feeder is opened and a switch H moved over ,to connect the winding B to an overload relay P.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2683023A GB227930A (en) | 1923-10-26 | 1923-10-26 | Improvements in or relating to electric protective arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2683023A GB227930A (en) | 1923-10-26 | 1923-10-26 | Improvements in or relating to electric protective arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB227930A true GB227930A (en) | 1925-01-26 |
Family
ID=10249929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2683023A Expired GB227930A (en) | 1923-10-26 | 1923-10-26 | Improvements in or relating to electric protective arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB227930A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358809A (en) * | 1980-05-09 | 1982-11-09 | U.S. Philips Corporation | Personal protection circuit |
EP1057233A1 (en) * | 1998-02-19 | 2000-12-06 | Square D Company | Zone arc fault detection |
US7737809B2 (en) | 2003-02-03 | 2010-06-15 | Leviton Manufacturing Co., Inc. | Circuit interrupting device and system utilizing bridge contact mechanism and reset lockout |
US7764151B2 (en) | 1998-08-24 | 2010-07-27 | Leviton Manufacturing Co., Ltd. | Circuit interrupting device with reverse wiring protection |
US7804255B2 (en) | 2007-07-26 | 2010-09-28 | Leviton Manufacturing Company, Inc. | Dimming system powered by two current sources and having an operation indicator module |
US7907371B2 (en) | 1998-08-24 | 2011-03-15 | Leviton Manufacturing Company, Inc. | Circuit interrupting device with reset lockout and reverse wiring protection and method of manufacture |
US7944331B2 (en) | 2003-02-03 | 2011-05-17 | Leviton Manufacturing Co., Inc. | Circuit interrupting device with reverse wiring protection |
US8004804B2 (en) | 2000-10-16 | 2011-08-23 | Leviton Manufacturing Co., Inc. | Circuit interrupter having at least one indicator |
US8089738B2 (en) | 2002-05-09 | 2012-01-03 | Hubbell Incorporated | GFCI that cannot be reset until wired correctly on line side and power is applied |
US8444309B2 (en) | 2010-08-13 | 2013-05-21 | Leviton Manufacturing Company, Inc. | Wiring device with illumination |
US8526144B2 (en) | 2011-03-31 | 2013-09-03 | Leviton Manufacturing Company, Inc. | Reset lockout with grounded neutral test |
-
1923
- 1923-10-26 GB GB2683023A patent/GB227930A/en not_active Expired
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358809A (en) * | 1980-05-09 | 1982-11-09 | U.S. Philips Corporation | Personal protection circuit |
EP1057233A1 (en) * | 1998-02-19 | 2000-12-06 | Square D Company | Zone arc fault detection |
EP1057233A4 (en) * | 1998-02-19 | 2005-05-04 | Square D Co | Zone arc fault detection |
US7764151B2 (en) | 1998-08-24 | 2010-07-27 | Leviton Manufacturing Co., Ltd. | Circuit interrupting device with reverse wiring protection |
US8130480B2 (en) | 1998-08-24 | 2012-03-06 | Leviton Manufactuing Co., Inc. | Circuit interrupting device with reset lockout |
US7907371B2 (en) | 1998-08-24 | 2011-03-15 | Leviton Manufacturing Company, Inc. | Circuit interrupting device with reset lockout and reverse wiring protection and method of manufacture |
US8054595B2 (en) | 1998-08-24 | 2011-11-08 | Leviton Manufacturing Co., Inc. | Circuit interrupting device with reset lockout |
US8004804B2 (en) | 2000-10-16 | 2011-08-23 | Leviton Manufacturing Co., Inc. | Circuit interrupter having at least one indicator |
US8089738B2 (en) | 2002-05-09 | 2012-01-03 | Hubbell Incorporated | GFCI that cannot be reset until wired correctly on line side and power is applied |
US7737809B2 (en) | 2003-02-03 | 2010-06-15 | Leviton Manufacturing Co., Inc. | Circuit interrupting device and system utilizing bridge contact mechanism and reset lockout |
US7944331B2 (en) | 2003-02-03 | 2011-05-17 | Leviton Manufacturing Co., Inc. | Circuit interrupting device with reverse wiring protection |
US7834560B2 (en) | 2007-07-26 | 2010-11-16 | Leviton Manufacturing Co., Inc. | Dimming system powered by two current sources and having an operation indicator module |
US7804255B2 (en) | 2007-07-26 | 2010-09-28 | Leviton Manufacturing Company, Inc. | Dimming system powered by two current sources and having an operation indicator module |
US8444309B2 (en) | 2010-08-13 | 2013-05-21 | Leviton Manufacturing Company, Inc. | Wiring device with illumination |
US8526144B2 (en) | 2011-03-31 | 2013-09-03 | Leviton Manufacturing Company, Inc. | Reset lockout with grounded neutral test |
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