EA201300024A1 - THREE-PHASE SYMMETERING TRANSFORMER (ITS OPTIONS) - Google Patents
THREE-PHASE SYMMETERING TRANSFORMER (ITS OPTIONS)Info
- Publication number
- EA201300024A1 EA201300024A1 EA201300024A EA201300024A EA201300024A1 EA 201300024 A1 EA201300024 A1 EA 201300024A1 EA 201300024 A EA201300024 A EA 201300024A EA 201300024 A EA201300024 A EA 201300024A EA 201300024 A1 EA201300024 A1 EA 201300024A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- phase
- voltage
- wire
- balancing
- current
- Prior art date
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
Изобретение относится к электротехнике и может быть использовано в электрических распределительных трехфазных четырех- и пятипроводных сетях напряжением 0,4 кВ с заземленной нейтралью для симметрирования напряжения, ограничения тока в нулевом проводе и снижения потерь в линии электропередач при неуравновешенных фазных нагрузках за счет компенсации перекоса фазных токов. Задачей, которую решает предлагаемое изобретение, является максимальное симметрирование напряжения на нагрузке, ограничение тока в нулевом проводе и снижение потерь в линии электропередач при неуравновешенных фазных нагрузках за счет компенсации перекоса фазных токов, что позволяет упростить высокочастотные фильтры. При этом конструкция трансформатора не имеет дополнительных ключей и он работает в автоматическом режиме. Поставленная задача решается тем, что в известном трехфазном симметрирующем автотрансформаторе каждая компенсационная фазная обмотка выполнена в виде трех последовательно соединенных секций, каждая из которых размещена на разном стержне магнитопровода, секции каждой компенсационной фазной обмотки соединены между собой по схеме открытых треугольников и каждая компенсационная фазная обмотка вторым концом подсоединена к соответствующей фазе сети. Имеются и другие отличия от прототипа. Заявляемая конструкция показала заявленную экономию материалов и выравнивание нагрузки по фазам.The invention relates to electrical engineering and can be used in three-phase four-wire and five-wire electrical distribution networks with a voltage of 0.4 kV with a grounded neutral for balancing the voltage, limiting the current in the neutral wire and reducing losses in the transmission line with unbalanced phase loads by compensating for the phase currents imbalance . The problem, which solves the present invention, is the maximum balancing of the voltage at the load, current limiting in the neutral wire and reducing losses in power lines with unbalanced phase loads by compensating phase current skew, which allows to simplify high-frequency filters. In this case, the design of the transformer does not have additional keys and it works in automatic mode. The task is solved by the fact that in the well-known three-phase balun autotransformer, each compensation phase winding is made in the form of three sections connected in series, each of which is placed on a different magnetic core, the sections of each compensation phase winding are interconnected according to the open triangles and each compensation phase winding is second end connected to the corresponding phase of the network. There are other differences from the prototype. The claimed design showed the stated material savings and load balancing in phases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201300024A EA025827B1 (en) | 2012-10-16 | 2012-10-16 | Three-phase balance-to-unbalance autotransformer (embodiments) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201300024A EA025827B1 (en) | 2012-10-16 | 2012-10-16 | Three-phase balance-to-unbalance autotransformer (embodiments) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA201300024A1 true EA201300024A1 (en) | 2014-04-30 |
| EA025827B1 EA025827B1 (en) | 2017-02-28 |
Family
ID=50516447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA201300024A EA025827B1 (en) | 2012-10-16 | 2012-10-16 | Three-phase balance-to-unbalance autotransformer (embodiments) |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA025827B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2656612C1 (en) * | 2017-06-20 | 2018-06-06 | Андрей Николаевич Евсеев | Three-phase and single-phase transformer |
| RU2727923C1 (en) * | 2019-05-07 | 2020-07-27 | Общество с ограниченной ответственностью Научно-технический центр "Интерм" | Electrical complex for balancing single-phase load |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA74960C2 (en) * | 2004-05-28 | 2006-02-15 | Yurii Oleksandrovyc Muzychenko | Three-phase autotransformer |
| JP5895807B2 (en) * | 2012-10-19 | 2016-03-30 | トヨタ自動車株式会社 | Vehicle front pillar structure |
-
2012
- 2012-10-16 EA EA201300024A patent/EA025827B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EA025827B1 (en) | 2017-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ KZ KG TJ TM |
|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): BY RU |