CA1056916A - Ground-fault detection system - Google Patents
Ground-fault detection systemInfo
- Publication number
- CA1056916A CA1056916A CA249,583A CA249583A CA1056916A CA 1056916 A CA1056916 A CA 1056916A CA 249583 A CA249583 A CA 249583A CA 1056916 A CA1056916 A CA 1056916A
- Authority
- CA
- Canada
- Prior art keywords
- neutral conductor
- frequency
- ground fault
- ground
- output
- 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
- 238000001514 detection method Methods 0.000 title description 10
- 239000004020 conductor Substances 0.000 claims abstract description 60
- 230000007935 neutral effect Effects 0.000 claims abstract description 46
- 230000001360 synchronised effect Effects 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 21
- 230000001939 inductive effect Effects 0.000 claims 3
- 230000010355 oscillation Effects 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
- H02H3/331—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 responsive to earthing of the neutral conductor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/570,434 US3963963A (en) | 1975-04-22 | 1975-04-22 | Ground-fault detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1056916A true CA1056916A (en) | 1979-06-19 |
Family
ID=24279635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA249,583A Expired CA1056916A (en) | 1975-04-22 | 1976-04-05 | Ground-fault detection system |
Country Status (6)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045822A (en) * | 1976-05-03 | 1977-08-30 | Rca Corporation | Ground fault interrupter apparatus |
| US4080641A (en) * | 1976-07-12 | 1978-03-21 | Rca Corporation | Ground fault detector |
| DE3112952C2 (de) * | 1981-03-31 | 1994-05-05 | Walther Bender Gmbh & Co Kg Di | Verfahren und Einrichtung zum Bestimmen der Gesamtableitungsimpedanz in einem ungeerdeten Wechselstromnetz |
| DE4100037C2 (de) * | 1991-01-03 | 1995-03-30 | Christian Kueck | Verfahren, einen Mantelerdschluss in einem beidseitig geerdeten, mit einem Isoliermantel umgebenen elektrisch leitfähigem Medium mit einem induktiven Meßsystem während des Betriebes festzustellen |
| GB9109477D0 (en) * | 1991-05-02 | 1991-06-26 | Mk Electric Ltd | Electrical protection devices |
| DE9210351U1 (de) * | 1992-07-31 | 1992-10-01 | Siemens AG, 8000 München | Einrichtung zur Läufererdschlußüberwachung |
| US5321635A (en) * | 1992-09-02 | 1994-06-14 | Alliedsignal Inc. | Synchro drive stabilization system |
| RU2124212C1 (ru) * | 1997-07-02 | 1998-12-27 | Западно-Сибирская железная дорога | Способ измерения сопротивления изоляции троса группового заземления опор контактной сети |
| DE19936873B4 (de) * | 1999-08-05 | 2006-05-24 | Rolf Louis | Schaltungsanordnung |
| US6417671B1 (en) * | 2000-11-07 | 2002-07-09 | General Electric Company | Arc fault circuit breaker apparatus and related methods |
| WO2009124338A1 (en) * | 2008-04-07 | 2009-10-15 | Protectelec Pty Ltd | An electrical protection device and an electrical distribution system including an electrical protection device |
| RU2383982C1 (ru) * | 2008-12-24 | 2010-03-10 | Борис Алексеевич Аржанников | Контактная сеть |
| US8749929B1 (en) * | 2012-12-17 | 2014-06-10 | Eaton Corporation | Circuit interrupter providing ground fault protection and system including the same |
| RU2581619C1 (ru) * | 2015-01-12 | 2016-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уральский государственный университет путей сообщения" (УрГУПС) | Устройство токовой защиты контактной сети постоянного тока |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3597656A (en) * | 1970-03-16 | 1971-08-03 | Rucker Co | Modulating ground fault detector and interrupter |
| US3611035A (en) * | 1970-06-08 | 1971-10-05 | Rucker Co | Ground fault protective system having grounded neutral protection |
| US3710238A (en) * | 1971-04-27 | 1973-01-09 | Sola Basic Ind Inc | Sensitive sound fault meter and detector utilizing a double side band frequency current-generator |
| CA1005897A (en) * | 1971-05-07 | 1977-02-22 | Ellwood S. Douglas | Ground fault protective system |
| US3787709A (en) * | 1971-12-13 | 1974-01-22 | Sci Systems Inc | Ground fault-sensitive detector and circuit breaker device |
| GB1455845A (en) * | 1973-02-27 | 1976-11-17 | Square D Co | Ground fault protection system |
| US3857069A (en) * | 1973-12-20 | 1974-12-24 | Gen Electric | Ground fault circuit interrupter and module therefor |
-
1975
- 1975-04-22 US US05/570,434 patent/US3963963A/en not_active Expired - Lifetime
-
1976
- 1976-04-05 CA CA249,583A patent/CA1056916A/en not_active Expired
- 1976-04-09 GB GB14606/76A patent/GB1522534A/en not_active Expired
- 1976-04-20 JP JP51045312A patent/JPS51129638A/ja active Pending
- 1976-04-21 FR FR7611741A patent/FR2309062A1/fr active Granted
- 1976-04-22 DE DE2617644A patent/DE2617644C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2617644B2 (de) | 1978-02-02 |
| FR2309062B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1981-12-31 |
| FR2309062A1 (fr) | 1976-11-19 |
| JPS51129638A (en) | 1976-11-11 |
| US3963963A (en) | 1976-06-15 |
| GB1522534A (en) | 1978-08-23 |
| DE2617644A1 (de) | 1976-10-28 |
| DE2617644C3 (de) | 1978-10-05 |
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