RU2012118031A - PROTECTION DEVICE FOR LEAKAGE CURRENTS IN MINE ELECTRIC NETWORKS - Google Patents
PROTECTION DEVICE FOR LEAKAGE CURRENTS IN MINE ELECTRIC NETWORKS Download PDFInfo
- Publication number
- RU2012118031A RU2012118031A RU2012118031/07A RU2012118031A RU2012118031A RU 2012118031 A RU2012118031 A RU 2012118031A RU 2012118031/07 A RU2012118031/07 A RU 2012118031/07A RU 2012118031 A RU2012118031 A RU 2012118031A RU 2012118031 A RU2012118031 A RU 2012118031A
- Authority
- RU
- Russia
- Prior art keywords
- relay
- unit
- network
- circuit
- additional
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims abstract 8
- 238000009413 insulation Methods 0.000 claims abstract 4
- 230000001681 protective effect Effects 0.000 claims abstract 4
- 238000001514 detection method Methods 0.000 claims abstract 2
- 238000002955 isolation Methods 0.000 claims abstract 2
- 238000012544 monitoring process Methods 0.000 claims abstract 2
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Устройство защиты от токов утечки в шахтных электрических сетях, содержащее узел контроля изоляции и защитного отключения, состоящий из источника постоянного измерительного тока, узла связи с фазами сети и землей, узла сравнения измерительного тока с эталонным и измерительного реле, и узел обнаружения и защитного заземления фазы сети с поврежденной изоляцией, отличающийся тем, что на регулируемом компенсирующем дросселя узла присоединения к сети размещена дополнительная обмотка переменного тока, первичная обмотка этого дросселя присоединена к нулевой точке вторичных обмоток силового трансформатора, питающего защищаемую сеть, выход измерительного реле включен в цепь отключения выключателя, подающего напряжение на указанный силовой трансформатор, а в устройство дополнительно введены узел сравнения напряжения на указанной дополнительной обмотке с эталонным, к выходу которого подключено дополнительное реле, один контакт которого включен в цепь отключения выключателя, а второй - в цепь управления реле, заземляющих фазу сети с поврежденной изоляцией.A device for protection against leakage currents in mine electrical networks, comprising an isolation monitoring and protective shutdown unit, consisting of a constant measuring current source, a communication unit with mains and ground phases, a unit for comparing the measuring current with a reference and a measuring relay, and a phase detection and protective grounding network with damaged insulation, characterized in that an additional AC winding is placed on the adjustable compensating inductor of the network connection unit, the primary winding of this inductor is it is single to the zero point of the secondary windings of the power transformer supplying the protected network, the output of the measuring relay is included in the trip circuit of the circuit breaker supplying voltage to the specified power transformer, and the unit for comparing the voltage on the specified additional winding with the reference one, to the output of which an additional relay is connected , one contact of which is included in the circuit breaker circuit, and the second - in the control circuit of the relay, grounding the phase of the network with damaged insulation.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA201111137 | 2011-09-19 | ||
| UAA201111137A UA99796C2 (en) | 2011-09-19 | 2011-09-19 | Device for protection against leakage currents in mine electric networks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2012118031A true RU2012118031A (en) | 2013-11-20 |
| RU2500060C1 RU2500060C1 (en) | 2013-11-27 |
Family
ID=49554910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2012118031/07A RU2500060C1 (en) | 2011-09-19 | 2012-05-02 | Device of protection against leakage currents in shaft electric circuits |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2500060C1 (en) |
| UA (1) | UA99796C2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2056797B (en) * | 1979-05-29 | 1983-01-06 | Trident Equip Ltd | Earth leakage protection devices |
| SU1144162A1 (en) * | 1983-04-27 | 1985-03-07 | Донецкий Ордена Трудового Красного Знамени Политехнический Институт | Method and apparatus for protection of distribution network against leakage current |
| RU2214664C2 (en) * | 2000-06-15 | 2003-10-20 | Слободкин Адольф Ходосович | Composite protective disconnection device |
| FR2850495B1 (en) * | 2003-01-24 | 2005-06-03 | Schneider Electric Ind Sas | DIFFERENTIAL PROTECTION DEVICE AND ELECTRICAL CUTTING APPARATUS COMPRISING SUCH A DEVICE |
| RU61956U1 (en) * | 2006-04-13 | 2007-03-10 | Общество с ограниченной ответственностью "Кузбассгорноспасатель" | LEAKAGE PROTECTION DEVICE |
-
2011
- 2011-09-19 UA UAA201111137A patent/UA99796C2/en unknown
-
2012
- 2012-05-02 RU RU2012118031/07A patent/RU2500060C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2500060C1 (en) | 2013-11-27 |
| UA99796C2 (en) | 2012-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20150503 |