SU106197A1 - Single-system longitudinal differential current protection of three-phase generators - Google Patents
Single-system longitudinal differential current protection of three-phase generatorsInfo
- Publication number
- SU106197A1 SU106197A1 SU552988A SU552988A SU106197A1 SU 106197 A1 SU106197 A1 SU 106197A1 SU 552988 A SU552988 A SU 552988A SU 552988 A SU552988 A SU 552988A SU 106197 A1 SU106197 A1 SU 106197A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phase
- circuit
- current protection
- differential current
- longitudinal differential
- Prior art date
Links
Landscapes
- Protection Of Transformers (AREA)
Description
Дл защиты трехфазных генераторов от внутренних короткнх замыKaiHiK 1 звестмо нримспеине продольных диффсрспцнальпых токовых заHUiT , ос1И) па нснользовании трансформаторов тока, первичные обмоткн которых включаютс в цепь reiiepfiTOjia на разность токов одной фазы, а вторична обмотка служнт ДЛЯ ннта1н-1 ре.чс.To protect three-phase generators from internal short circuits KaiHiK 1, they are known for longitudinal differential transducers, they are used for current transformers, the primary windings of which are connected to the reiiepfiTOjia circuit by the difference of the currents of one phase, and the main piece of the device is connected to the reiiepfiTOjia circuit by the difference of the currents of one phase, and the device has a single-phase device, and the secondary circuit is connected to the reiiepfiTOjia circuit for the difference of currents of one phase, and the device has a single-phase device, and the secondary circuit is connected to the reiiepfiTOjia circuit for the difference of currents of one phase, and the device has a single-phase device, and the secondary circuit is connected to the reiiepfiTOjia circuit for the difference of currents of one phase, and the device is covered by a single-phase transformer, and the secondary device is connected to the reiiepfiTOjia circuit for the difference of the currents of one phase, and the secondary circuit.
С целью упрощени схемы подобной заищты трехфазных ге ;ераторов, раб()таюни1х с пзолпрованпой нейтпалыо , нутем использовани вместо двух нлн трехтранс (эорматоров, включаемых в разные фазы, только ОДНОГО трапсформатор , нред.тагаетс дл вы влени разности токов прнменнть п тноблюточный трансформатор тока, включе1Н1ый на две разноименные фазы. Одна нара первичных обмоток этого трансформатора ВКЛЕОчаетс на разность токов одной фазы , пара-на раз1гостъ токов второй фазы, а н та. обмотка питает реле.In order to simplify the scheme of a similar three-phase generator; This includes the two primary phases of this transformer ON the difference between the currents of one phase, a couple of times the second phase of the currents of the second phase, and the other winding feeds the relay.
Нл чертеже представлена принцнпиальпа электрическа схема предлагаемой запи-ггы, в которой в качестве тра1;сформатора примененThe drawing shows a printable electrical diagram of the proposed recording, in which a trap1;
сумматор, представл ющий сооои магннтонровод, через окно которого пр мой н обратный нровода одпой фазы гсие)атора пропускаютс встречно но отно1не1Н1ю к нр мому н обратному проводам другой фазы. Этим обеснсчиваетс охват заищтой всех ВИДОВ коротких за.мыканий, возЛ ОЖ1 ых в системе с нзолированиой нейтралью.an adder is a coax magnet circuit, through the window of which the direct and inverse lines of the single phase of the controller are passed oppositely relative to the opposite wires of the other phase. This will obscure the coverage of the search for all TYPES of short closures in the system with neutral isolation.
Чувствительность защиты определ етс OTiiOHjcHHe.M 1:1, 73:2 в зависнмостн от вида короткого замыка Н- Я .The sensitivity of protection is determined by OTiiOHjcHHe.M 1: 1, 73: 2 in dependence on the type of short circuit HI.
Зонг действи запхнты зависит от места устаио1 ки сумматора и включает как обмотки геиератора, так и фндер в нредсла.х от геиератора ДО сумматора.The action of zaphnty depends on the place of installation of the adder and includes both windings of the geierator and finder in nredslah from the geerator of the TO of the adder.
При обрывах или коротких замыкани х вторичных проводов, идуишх от сумматора к отключающей катуьчке , имеет место отказ, а не ложна работа защиты, что вл етс проимугнеством с.хемы и позвол ет обесиечит1з ее высокую чувствительность .In the event of breaks or short circuits of the secondary wires going from the adder to the tripping cable, there is a failure, and not a false protection operation, which is equivalent to the circuit and allows its high sensitivity.
Достгнаема изобретением возможность Г1римене1н-1 в схеме защиты только ОДНОГО трансформатора обеснечнвает значительную эконоThe ability of G1rimene1n-1 to achieve the invention in the protection circuit of only ONE transformer causes significant cost savings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU552988A SU106197A1 (en) | 1956-06-07 | 1956-06-07 | Single-system longitudinal differential current protection of three-phase generators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU552988A SU106197A1 (en) | 1956-06-07 | 1956-06-07 | Single-system longitudinal differential current protection of three-phase generators |
Publications (1)
Publication Number | Publication Date |
---|---|
SU106197A1 true SU106197A1 (en) | 1956-11-30 |
Family
ID=48379531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU552988A SU106197A1 (en) | 1956-06-07 | 1956-06-07 | Single-system longitudinal differential current protection of three-phase generators |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU106197A1 (en) |
-
1956
- 1956-06-07 SU SU552988A patent/SU106197A1/en active
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