SU1571739A1 - Device for starting three-phase induction electric motor - Google Patents
Device for starting three-phase induction electric motor Download PDFInfo
- Publication number
- SU1571739A1 SU1571739A1 SU884475284A SU4475284A SU1571739A1 SU 1571739 A1 SU1571739 A1 SU 1571739A1 SU 884475284 A SU884475284 A SU 884475284A SU 4475284 A SU4475284 A SU 4475284A SU 1571739 A1 SU1571739 A1 SU 1571739A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- output
- terminal
- resistor
- electric motor
- optocoupler
- Prior art date
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- Control Of Ac Motors In General (AREA)
Abstract
Изобретение относитс к электротехнике и может быть использовано в электроприводах общепромышленных механизмов дл автоматического повторного запуска электродвигател после кратковременного глубокого снижени напр жени питани . Цель изобретени - повышение надежности. Цель достигаетс введением в предлагаемое устройство тиристорного оптрона 11, фототиристор которого подключен параллельно врем задающему конденсатору 9. Фототиристор открываетс при нажатии кнопки 7 "Стоп" и обеспечивает полный разр д конденсатора 9 независимо от длительности нажати на кнопку 7 "Стоп", что исключает возможность несанкционированного запуска электродвигател . При кратковременном глубоком снижении напр жени питани устройство обеспечивает автоматическое повторное включение в течение времени, ограниченного уставкой. 1 ил.The invention relates to electrical engineering and can be used in electric drives of general industrial mechanisms for automatically restarting an electric motor after a brief deep reduction of the supply voltage. The purpose of the invention is to increase reliability. The goal is achieved by introducing into the proposed device a thyristor optocoupler 11, the photo thyristor of which is connected in parallel to the time reference capacitor 9. The photo thyristor opens when the "Stop" button 7 is pressed and ensures full discharge of the capacitor 9 regardless of the duration of pressing the button 7 "Stop", which eliminates the possibility of start the electric motor. With a short deep power supply voltage, the device provides automatic reclosing during the time limited by the setpoint. 1 il.
Description
,Составитель С.Андрианов, Compiled by S. Andrianov
Редактор А.Лежнина Техред М.Ходанич Корректор Н. Король Editor A.Lezhnina Tehred M.Hodanich Proofreader N. Korol
Заказ 1520Order 1520
Тираж 454Circulation 454
ВНИИПИ Государственного комитета по изобретени м и открыти м при ГКНТ СССР 113035, Москва, Ж-35, Раушска наб., д. 4/5VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884475284A SU1571739A1 (en) | 1988-08-17 | 1988-08-17 | Device for starting three-phase induction electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884475284A SU1571739A1 (en) | 1988-08-17 | 1988-08-17 | Device for starting three-phase induction electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1571739A1 true SU1571739A1 (en) | 1990-06-15 |
Family
ID=21396086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884475284A SU1571739A1 (en) | 1988-08-17 | 1988-08-17 | Device for starting three-phase induction electric motor |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1571739A1 (en) |
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1988
- 1988-08-17 SU SU884475284A patent/SU1571739A1/en active
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