SU656147A1 - Traction electric unit with protection device - Google Patents

Traction electric unit with protection device

Info

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
Application number
SU752300451A
Other languages
Russian (ru)
Inventor
Александр Иванович Григорьев
Александр Леонидович Лозановский
Борис Иванович Хоменко
Original Assignee
Предприятие П/Я Г-4847
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я Г-4847 filed Critical Предприятие П/Я Г-4847
Priority to SU752300451A priority Critical patent/SU656147A1/en
Application granted granted Critical
Publication of SU656147A1 publication Critical patent/SU656147A1/en

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  • 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

SU752300451A 1975-12-16 1975-12-16 Traction electric unit with protection device SU656147A1 (en)

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)

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