SU399986A1 - METHOD OF CONDENSING BRAKING ASYNCHRONOUS ELECTRIC MOTORS - Google Patents

METHOD OF CONDENSING BRAKING ASYNCHRONOUS ELECTRIC MOTORS

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Publication number
SU399986A1
SU399986A1 SU1299097A SU1299097A SU399986A1 SU 399986 A1 SU399986 A1 SU 399986A1 SU 1299097 A SU1299097 A SU 1299097A SU 1299097 A SU1299097 A SU 1299097A SU 399986 A1 SU399986 A1 SU 399986A1
Authority
SU
USSR - Soviet Union
Prior art keywords
electric motors
condensing
braking
asynchronous electric
motors
Prior art date
Application number
SU1299097A
Other languages
Russian (ru)
Inventor
И. Кашкалов В.
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 filed Critical
Priority to SU1299097A priority Critical patent/SU399986A1/en
Application granted granted Critical
Publication of SU399986A1 publication Critical patent/SU399986A1/en

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Description

1one

Изобретение относитс  к области торможени  асинхронных двигателей.This invention relates to the braking of asynchronous motors.

Известные системы конденсаторного торможени  асинхронных двигателей не обеспечивают условий самовозбуждени  двигателей при использовании общей конденсаторной батареи и включение двигателей на зан тую емкость .The known systems of capacitor braking of asynchronous motors do not provide the conditions for self-excitation of motors when using a common capacitor bank and switching the motors on to the occupied capacity.

Описываемый способ отличаетс  тем, что кратковременно прерывают электрическую св зь тормозных двигателей с конденсаторной батареей и затем вновь подключает все двигатели к этой батарее.The described method is characterized in that it briefly interrupts the electrical connection of the brake motors to the capacitor battery and then reconnects all the engines to this battery.

На фиг. 1 изображена принципиальна  схема устройства дл  трех двигателей дл  осуществлени  описываемого способа; на фиг. 2 - схема управлени  торможением асинхронных электродвигателей.FIG. 1 is a schematic diagram of a device for three engines for carrying out the described method; in fig. 2 - control circuit for braking asynchronous electric motors.

После отключени  одного из двигателей от сети, например двигател  1, включаетс  его тормозной контактор 2 и присоедин ет его к конденсаторной батарее 3 на врем , определ емое выдержкой реле 4. При этом в цепи катушки реле совместного торможени  5 замыкаетс  контакт 6, но реле не срабатывает, так как из-за последовательно включенного резистора 7 ампервитки реле не обеспечивают прит гивани   кор  реле.After one of the motors is disconnected from the mains, for example, the motor 1, its brake contactor 2 is turned on and connected to the capacitor battery 3 for the time determined by the exposure of relay 4. At the same time, contact 6 is closed in the coil circuit of the joint relay 5, but it works, because, due to the resistor 7 connected in series, the amperages of the relay do not ensure the attraction of the relay core.

Если в процессе торможени  первого двигател  к конденсаторной батарее 3 присоедин етс  второй двигатель 8, то оказываетс .If, in the process of braking the first motor, a second motor 8 is connected to the capacitor battery 3, it turns out.

что в цепи катушки реле 5 два резистора 7 и 9 включены параллельно. Это приводит к увеличению тока катушки и срабатыванию реле 5. Последнее размыкает контакт в цепи катушки контактора 10. Вслед за этим включаетс  реле 11, шунтиру  контакт контактора 10 в своей цепи, а затем - реле 12. Оно шунтирует разомкнувшийс  вначале контакт контактора 13 в цепи катушки 14. Благодар that in the circuit of the relay coil 5 two resistors 7 and 9 are connected in parallel. This leads to an increase in the coil current and the operation of the relay 5. The last contact opens the contact of the coil of the contactor 10. Then the relay 11 is turned on, the contact of the contactor 10 in its circuit is shunted, and then the relay 12. It shunts the contact of the contactor 13 which is open at the beginning coils 14. Thanks

этому контактор 10 включаетс  вновь.this contactor 10 is turned on again.

Кратковременное отключение контактора 10 приводит к уравниванию напр жений статора обоих электродвигателей соединительными проводниками, в св зи с чем при повторномA brief disconnection of the contactor 10 leads to the equalization of stator voltages of both electric motors by connecting conductors, in connection with which

включении контактора 10 услови  самовозбуждени  обоих двигателей существенно улучшаютс  и торможение их протекает нормально .switching on the contactor 10, the conditions of self-excitation of both engines are significantly improved and their braking proceeds normally.

2020

Предмет изобретени Subject invention

Способ конденсаторного торможени  асинхронных электродвигателей, отличающийс  тем, что, с целью улучшени  условий самовозбуждени  двигателей при использовапии обшей конденсаторной батареи и включении двигателей на зан тую емкость, кратковременно прерывают электрическую св зь тормозимых двигателей с конденсаторной батареейA method of capacitor braking of asynchronous electric motors, characterized in that, in order to improve the conditions of self-excitation of engines when using a common capacitor battery and switching the engines on to a occupied capacity, the electrical connection of the braked motors to the capacitor battery is interrupted for a short time.

и затем вновь подключают все двигатели к упом нутой- батарее.and then re-connect all the engines to the mentioned battery.

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SU1299097A 1968-12-27 1968-12-27 METHOD OF CONDENSING BRAKING ASYNCHRONOUS ELECTRIC MOTORS SU399986A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1299097A SU399986A1 (en) 1968-12-27 1968-12-27 METHOD OF CONDENSING BRAKING ASYNCHRONOUS ELECTRIC MOTORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1299097A SU399986A1 (en) 1968-12-27 1968-12-27 METHOD OF CONDENSING BRAKING ASYNCHRONOUS ELECTRIC MOTORS

Publications (1)

Publication Number Publication Date
SU399986A1 true SU399986A1 (en) 1973-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1299097A SU399986A1 (en) 1968-12-27 1968-12-27 METHOD OF CONDENSING BRAKING ASYNCHRONOUS ELECTRIC MOTORS

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SU (1) SU399986A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547042C1 (en) * 2013-10-08 2015-04-10 Владимир Алексеевич Задеренко Braking method of double-motor asynchronous electric drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547042C1 (en) * 2013-10-08 2015-04-10 Владимир Алексеевич Задеренко Braking method of double-motor asynchronous electric drive

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