SU1390694A1 - Device for protecting three-phase electric motor against voltage failure in any of power supply line phases - Google Patents
Device for protecting three-phase electric motor against voltage failure in any of power supply line phases Download PDFInfo
- Publication number
- SU1390694A1 SU1390694A1 SU600656892A SU656892A SU1390694A1 SU 1390694 A1 SU1390694 A1 SU 1390694A1 SU 600656892 A SU600656892 A SU 600656892A SU 656892 A SU656892 A SU 656892A SU 1390694 A1 SU1390694 A1 SU 1390694A1
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- USSR - Soviet Union
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- phase
- phases
- electric motor
- power supply
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Abstract
Изобретение относитс к электротехнике , в частности к релейной защите электродвигател . Цель изобретени - обеспечение бесперебойной работы двигател . При обрыве любой из трех фаз сети питани двигатель продолжает бесперебойную работу, так как обмотка электродвигател получает питание от другой фазы через группу конденсаторов и двух замыкающих контактов токовых реле, установленных в двух других фазах сети питани . 1 ил.This invention relates to electrical engineering, in particular, to motor protection. The purpose of the invention is to ensure the uninterrupted operation of the engine. If any of the three phases of the mains supply fails, the motor continues uninterrupted operation, as the motor winding receives power from the other phase through a group of capacitors and two make contacts of the current relays installed in the other two phases of the mains supply. 1 il.
Description
Изобретение относитс к электротехнике в частности, к релейной защите электродвигател .This invention relates to electrical engineering, in particular, to motor protection.
Целью изобретеш 1 вл етс обеспечение бесперебойной работы двига- .тел .The purpose of the inventor 1 is to ensure uninterrupted operation of the engine.
На чертеже приведена пришципиаль- на электрическа схема устройства.The drawing shows a schematic diagram of the device.
Устройство содержит подключенные к фазам 1-3 сети питани токовые рел 4-6 с замыкающими контактами 7-9 соответственнор группу конденсаторов 10-12 и электродвигатель 13,The device contains current relays 4-6 connected to phases 1-3 of the supply network with closing contacts 7-9, respectively, a group of capacitors 10-12 and an electric motor 13,
Устройство работает следующим образом.The device works as follows.
При наличии напр жени , приложенного к фазам 1-3, в обмотках токо- Bbix реле 4-6 течет ток. Токовые реле 4-6 срабатывают, замыкают свои замыкающие контакты 7-9 соответственно и подключают группу конденсаторов 10- 12 к сети. При обрыве одной из фаз сети питани , например фазы 1, токо- вое реле 4 обесточиваетс , его замыкающий контакт 7 размыкаетс , отключа группу конденсаторов от фазы 2 сети и питани . Обмотка электродвигател получает n iTanne от фазы 3 сети через группу конденсаторов, таким образом электродвигатель 13, продолжа бесперебойную работу, автоматичеки переводитс в режим конденсаторного двигател ,If there is a voltage applied to phases 1–3, a current flows in the windings of the current Bbix relay 4–6. Current relays 4-6 work, close their closing contacts 7-9, respectively, and connect a group of capacitors 10-12 to the network. If one of the phases of the power supply is disconnected, for example, phase 1, the current relay 4 de-energizes, its closing contact 7 opens, disconnecting a group of capacitors from phase 2 of the power supply and supply. The motor winding receives n iTanne from phase 3 of the network through a group of capacitors, so that the electric motor 13, continuing uninterrupted operation, is automatically switched to the capacitor motor mode,
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При по влении исчезнувшего напр жени токовое реле 4 обтекаетс током , замыкает свой контакт 7, и двигатель работает в трехфазном режиме.When the disappearing voltage appears, the current relay 4 flows around the current, closes its contact 7, and the motor runs in three-phase mode.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU600656892A SU1390694A1 (en) | 1960-02-29 | 1960-02-29 | Device for protecting three-phase electric motor against voltage failure in any of power supply line phases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU600656892A SU1390694A1 (en) | 1960-02-29 | 1960-02-29 | Device for protecting three-phase electric motor against voltage failure in any of power supply line phases |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782598754A Addition SU722786A2 (en) | 1978-03-30 | 1978-03-30 | Automotive vehicle washing unit |
SU782626329A Addition SU722787A2 (en) | 1978-06-09 | 1978-06-09 | Automotive vehicle washing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1390694A1 true SU1390694A1 (en) | 1988-04-23 |
Family
ID=20437066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU600656892A SU1390694A1 (en) | 1960-02-29 | 1960-02-29 | Device for protecting three-phase electric motor against voltage failure in any of power supply line phases |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1390694A1 (en) |
-
1960
- 1960-02-29 SU SU600656892A patent/SU1390694A1/en active
Non-Patent Citations (1)
Title |
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Патент Германии Р 287609, кл. Н 02 Н 7/08, 1896. Патент Германии № 574860, кл. Н 02 Н 7/08, 1933. * |
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