SU656147A1 - Traction electric unit with protection device - Google Patents
Traction electric unit with protection deviceInfo
- Publication number
- SU656147A1 SU656147A1 SU752300451A SU2300451A SU656147A1 SU 656147 A1 SU656147 A1 SU 656147A1 SU 752300451 A SU752300451 A SU 752300451A SU 2300451 A SU2300451 A SU 2300451A SU 656147 A1 SU656147 A1 SU 656147A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protection device
- electric unit
- traction electric
- circuit
- transformer
- Prior art date
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Изобретение относитс к области защиты полупроводниковых преобразователей т говых электроустановок. Известна т гова электроустановка с устройством защиты, содержаща два мос товых нреобразовател, включенных по пе рекрестаой схеме на две вторичные обмотки трансформатора, и двигатель посто нного тока, подключенный к зажимам посте- нного тока моста ij, Нецостагком устройства вл етс недостаточна надежность. Наиболее близким по техническим средствам и достигаемым результатам згол - етс устройство дл защиты электроустановки , содержащей два мостовых преобразовател , включенных по перекрестной схеме на две обмотки трансформатора, и двигатель посто нного тока, подключенный через- сглан 1шающие реакторы к зажимам посто нного тока мостов, снабженное то- коограничивающими реакторамн 2. Недостатком устройства вл етс недостаточна , надежность. Целью изобретени вл етс повышение надежности. Поставпе1ша цель достигаетс тем, что плечи мостовых преобразователей расщеплены со стороны зажиктов посто нного тока и подключены через токоограничивающие реакторы к силовой цепи двигател , устройство также снабжено датчиками пробо плеча преобразовател , вклю. ченными между выводами реакторов смежных с выводом силовой цепи плечей мостов . На чертеже изображена схема устройства защиты. Схема содержит однополюсный воздушный главный выключатель 1, включетшгй в цень первичной обмотки 2 силового трансформатора 3, который снабжен двум вторичными обмотками 4 и 5, выводы которых включены через регул торы напр жени нагрузки 6 и 7 и контакты 8, 9, 1О и 11 двстанцнонного управл емого разъединител на выводы полутглеч 12, 13, 14, 15, 16/17, 18 и 19 полупроThis invention relates to the field of protection of semiconductor converters of electric traction installations. Known traction electrical installation with a protection device, containing two motorized transducers connected in a crosswise circuit to the two secondary windings of a transformer, and a direct current motor connected to the DC terminals of the bridge ij, an inoperative device is insufficient reliability. The closest in terms of technical means and achievable results is a device for protecting an electrical installation comprising two bridge converters connected in a cross-circuit to two windings of a transformer, and a direct current motor connected to a DC clamp of bridges equipped with current-limiting reactors 2. The disadvantage of the device is insufficient reliability. The aim of the invention is to increase reliability. The goal is achieved by the fact that the shoulders of bridge converters are split on the side of the DC link and connected through current-limiting reactors to the power circuit of the engine, the device is also equipped with sensors of the converter shoulder, including. between the terminals of the reactors adjacent the arms of the power circuit of the arms of the bridges. The drawing shows a diagram of the protection device. The circuit contains a single-pole air main switch 1, which is included in the price of the primary winding 2 of the power transformer 3, which is equipped with two secondary windings 4 and 5, the outputs of which are connected through load voltage regulators 6 and 7 and contacts 8, 9, 1 and 11 two-station control of the disconnecting device to the conclusions of the semi-lugs 12, 13, 14, 15, 16/17, 18 and 19
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752300451A SU656147A1 (en) | 1975-12-16 | 1975-12-16 | Traction electric unit with protection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752300451A SU656147A1 (en) | 1975-12-16 | 1975-12-16 | Traction electric unit with protection device |
Publications (1)
Publication Number | Publication Date |
---|---|
SU656147A1 true SU656147A1 (en) | 1979-04-05 |
Family
ID=20640989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU752300451A SU656147A1 (en) | 1975-12-16 | 1975-12-16 | Traction electric unit with protection device |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU656147A1 (en) |
-
1975
- 1975-12-16 SU SU752300451A patent/SU656147A1/en active
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