SU866651A1 - Device for automatic redundancy of power supply source of three-phase induction motor - Google Patents
Device for automatic redundancy of power supply source of three-phase induction motor Download PDFInfo
- Publication number
- SU866651A1 SU866651A1 SU802877145A SU2877145A SU866651A1 SU 866651 A1 SU866651 A1 SU 866651A1 SU 802877145 A SU802877145 A SU 802877145A SU 2877145 A SU2877145 A SU 2877145A SU 866651 A1 SU866651 A1 SU 866651A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- contacts
- phase
- contactors
- power supply
- supply source
- Prior art date
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Description
онтакт одного из контакторов первым ыводом присоединен к тому же фазноу проводу сети, что и катушка этого онтактора, третий размыкающий конакт этого контактора первым выводом рисоединен к другой фазе сети, а торые выводы этих контактов соединеы с первым выводом замыкающего конакта трехфазного реле напр жени .The first contact of one of the contactors is connected to the same mains wire as the coil of this contactor, the third disconnecting contact of this contactor is connected to the other phase of the network by the first output, and the other terminals of these contacts are connected to the first output of the three-phase voltage relay.
На чертеже изображена принципиальа схема устройства.The drawing shows a schematic diagram of the device.
Устройство содержит трехфазный асинхронный двигатель, статорные обмотки 1 которого соединены в звезду , трехфазное реле 2 напр жени с замыкающим контактом 3, магнитный пускатель с катушкой 4 и контактами 5, три .контактора с катушками 6-8 соответствующими им контактами 9-19, ключ 20 управлени .The device contains a three-phase asynchronous motor, the stator windings 1 of which are connected in a star, a three-phase voltage relay 2 with a closing contact 3, a magnetic starter with a coil 4 and contacts 5, three contactors with coils 6-8 corresponding contacts 9-19, key 20 management
Статорные обмотки электродвигател с вентил торной нагрузкой присоединены к сети через последовательно соединенные контакты 5 магнитного пускател и первые замыкающие контакты 9, 14 и 17 контакторов.The stator windings of an electric motor with a fan load are connected to the network through serially connected contacts 5 of the magnetic starter and the first closing contacts 9, 14 and 17 of the contactors.
Первые выводы катушек 6-8 контакторов и первые выводы первых размыкающих контактов 10, 15 и 18 контакторов присоединены к нулевому выводу источника питани , а вторые выводы этих катушек присоединены к сети, вторые выводы первых азмыкающих j OHTaKTOB контакторов присрединет/ к средней точке звезды статорных обмоток двигател . Вторые размыкающие контакты 11, 16 и 19 каждого контактора подключены параллельно замыкающему контакту 3 трехфазного реле 2 напр жени , второй замыкающий контакт 12 контактора с катушкой 6 первым выводом присоединен к фазе сети, к которой присоединена и катушка 6 этого контактора, а третий размыкающий контакт 13 этого контактора первым выводом присоединен к фазе В сети, при этом вторые выводы контактов 12 и 13 присоединены к первому выводу замыкающего контакта 3 трехфазного реле 2 напр жени .The first terminals of coils 6-8 contactors and the first terminals of the first disconnecting contacts of 10, 15, and 18 contactors are connected to the zero terminal of the power source, and the second terminals of these coils are connected to the network, the second terminals of the first j OhTaKTOB contactors will average to the star point of the stator windings engine The second disconnecting contacts 11, 16 and 19 of each contactor are connected in parallel to the closing contact 3 of the three-phase voltage relay 2, the second closing contact 12 of the contactor with the coil 6 is connected to the phase of the network to which the coil 6 of this contactor is connected, and the third disconnecting contact 13 This contactor is connected to the first phase of the network B, while the second terminals of contacts 12 and 13 are connected to the first terminal of the closing contact 3 of the three-phase voltage relay 2.
Катушка 4 магнитного пускател первым выводом присоединена к нулевому выводу источника питани , а вторым выводом через ключ 20 управлени присоединена к второму выводу размыкающего контакта 3 трехфазного реле 2 напр жени .The coil 4 of the magnetic starter is connected to the zero output of the power source by the first terminal, and the second output is connected to the second output of the break contact 3 of the three-phase voltage relay 2 via the control switch 20.
Устройство работает следующим образом .The device works as follows.
При подаче трехфазного йапр жени на зажимы А, В и С срабатывает трехфазное реле 2 напр жени и контакторы с катушками 6-8 при этом замыкаютс контакты 3/ 9, 12, 14 и 17, а контакты 10, 15, 18, 11, 16, 19 и 13 размыкаютс . При замыкании ключа 20 управлени напр жение подаетс на катушку 4 магнитного пускател ,When three-phase voltage is applied to terminals A, B and C, a three-phase voltage relay 2 and contactors with coils 6-8 are triggered, contacts 3/9, 12, 14 and 17 are closed, and contacts 10, 15, 18, 11, 16 , 19 and 13 open. When the control key 20 is closed, the voltage is applied to the coil 4 of the magnetic starter,
последний замыкает свои контакты 5 и двигатель запускаетс .the latter closes its pins 5 and the engine starts.
При исчезновении напр жени одной из фаз питающей сети, например С, срабатывает трехфазное реле 2 напр жени и размыкает свой контакт 3 при этом катушка 4 магнитного пускател обесточиваетс ,и пускатель размыкает свои контакты 5.When the voltage of one of the mains supply phases, for example C, disappears, the three-phase voltage relay 2 triggers and opens its contact 3 while the coil 4 of the magnetic starter de-energizes and the starter opens its contacts 5.
После этого контактор с катушкой 6 отпускает и при этом его контакты 9 и 12 размыкаютс , а контакты 10, 11 и 13 замыкаютс . С замыканием контактов 13 и 11 напр жение фазы В через ,ключ 20 управлени п5 икладываетс ккатушке 4 магнитного пускател , последний срабатывает и замыкает сво контакты 5. При этом напр жение фаз А и В прикладываетс к двум статорным обмоткг1М двигател , так как средн точка звезды статорных обмоток двигател присоединена к нулю источника питани через замкнутый контакт 10, и двигатель продолжает работать.After that, the contactor with the coil 6 releases and at the same time its contacts 9 and 12 open, and contacts 10, 11 and 13 close. With the closure of the contacts 13 and 11, the voltage of the phase B through, the control key 20, p5 is applied to the coil 4 of the magnetic starter, the latter operates and closes its contacts 5. The voltage of phases A and B is applied to the two stator windings of the engine, as the star's average point the stator windings of the motor are connected to zero of the power source through closed contact 10, and the motor continues to operate.
При отсутствии напр жени фазы С пуск и остановка электродвигател осуществл етс замыканием и размыканием ключа 20 управ 1ени .In the absence of phase C voltage, the motor is started and stopped by closing and opening the control key 20 1eni.
При восстановлении напр жени фазы С срабатывают трехфазное реле напр жени и контактор с катушкой 6, при этом контакты 3, 12 и 9 замыкаютс , а. контакты 10, 11 и 13 раз1«алкаютс , т.е. схема автоматически возвршиаетс в исходное состо ние и двигат ль начинает работать в полнофазном режиме.When voltage is restored, phase C trips a voltage relay and a contactor with a coil 6, and contacts 3, 12, and 9 close, a. pins 10, 11 and 13 times1 "are thrown, i.e. the circuit automatically returns to its original state and the motor starts to operate in full phase mode.
Аналогичные переключени происход т при исчезновении и восстановлении напр жени фазы В или А.Similar switching occurs when the voltage of phase B or A disappears and recovers.
Изобретение упЕ(ощает конструкцию устройства и повышает надежность его работы.Invention EE (feels the design of the device and increases the reliability of its work.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802877145A SU866651A1 (en) | 1980-01-30 | 1980-01-30 | Device for automatic redundancy of power supply source of three-phase induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802877145A SU866651A1 (en) | 1980-01-30 | 1980-01-30 | Device for automatic redundancy of power supply source of three-phase induction motor |
Publications (1)
Publication Number | Publication Date |
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SU866651A1 true SU866651A1 (en) | 1981-09-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU802877145A SU866651A1 (en) | 1980-01-30 | 1980-01-30 | Device for automatic redundancy of power supply source of three-phase induction motor |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU866651A1 (en) |
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1980
- 1980-01-30 SU SU802877145A patent/SU866651A1/en active
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