SU479193A1 - Differential protection device - Google Patents
Differential protection deviceInfo
- Publication number
- SU479193A1 SU479193A1 SU1889233A SU1889233A SU479193A1 SU 479193 A1 SU479193 A1 SU 479193A1 SU 1889233 A SU1889233 A SU 1889233A SU 1889233 A SU1889233 A SU 1889233A SU 479193 A1 SU479193 A1 SU 479193A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- differential protection
- protection device
- winding
- operating
- braking
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ДИФФЕРЕНЦИАЛЬНОЙ ЗАЩИТЫ(54) DEVICE FOR DIFFERENTIAL PROTECTION
напр жение в обмотке 5 практически отсутствует , и в реагирующем органе преобладает тормозной момент.the voltage in the winding 5 is practically absent, and the braking torque prevails in the reacting organ.
При внутренних повреждени х равенство магнитных потоков нарушаетс и приводит к уменьшению тормозного тока в обмотке 4, а по вившийс в обмотке 5 рабочий ток вызывает преобладание рабочего момента, что вызывает срабатывание реагируюш,его органа и отключение поврежденного объекта.In case of internal damages, the equality of the magnetic fluxes is disturbed and leads to a decrease in the braking current in the winding 4, and the operating current in the winding 5 causes the operating moment to prevail, which causes the organ to react and the injured object is disconnected.
Предмет изобретени Subject invention
Устройство дл дифференциальной защиты, содержащее трехстержневой трансформатор.Device for differential protection, containing a three-core transformer.
обмотки которого, расположенные на крайних стержн х, подключены к трансформаторам тока, включенным по схеме трехфазных сумматоров , схему сравнени выпр мленных рабочего и тормозного токов, подключенную соответственно к обмоткам - источникам рабочего и тормозного токов, и расположенные на крайних стержн х короткозамкнутые витки, отличающеес тем, что, с целью повыщени надежности, обмотка - источник рабочего тока расположена на среднем стержне, а обмотка -источник тормозного тока выполнена двухсекционной, и секции этой обмотки расположены на.крайних стержн х трансформатора .windings of which located on extreme rods are connected to current transformers connected according to the three-phase adder circuit, a comparison circuit of rectified operating and braking currents connected respectively to the windings — sources of operating and braking currents, and short-circuited coils located on the extreme rods, characterized by the fact that, in order to increase reliability, the winding - the source of operating current is located on the middle rod, and the winding - the source of the braking current is made of two sections, and the section of this winding is located ozheny na.kraynih rods transformer.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1889233A SU479193A1 (en) | 1973-03-02 | 1973-03-02 | Differential protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1889233A SU479193A1 (en) | 1973-03-02 | 1973-03-02 | Differential protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU479193A1 true SU479193A1 (en) | 1975-07-30 |
Family
ID=20544227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1889233A SU479193A1 (en) | 1973-03-02 | 1973-03-02 | Differential protection device |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU479193A1 (en) |
-
1973
- 1973-03-02 SU SU1889233A patent/SU479193A1/en active
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