SU123604A1 - Device for controlling the operation of an asynchronous motor - Google Patents

Device for controlling the operation of an asynchronous motor

Info

Publication number
SU123604A1
SU123604A1 SU617225A SU617225A SU123604A1 SU 123604 A1 SU123604 A1 SU 123604A1 SU 617225 A SU617225 A SU 617225A SU 617225 A SU617225 A SU 617225A SU 123604 A1 SU123604 A1 SU 123604A1
Authority
SU
USSR - Soviet Union
Prior art keywords
controlling
asynchronous motor
motor
windings
transformer
Prior art date
Application number
SU617225A
Other languages
Russian (ru)
Inventor
Р.Н. Родин
О.Б. Росенбаули
Original Assignee
Р.Н. Родин
О.Б. Росенбаули
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 Р.Н. Родин, О.Б. Росенбаули filed Critical Р.Н. Родин
Priority to SU617225A priority Critical patent/SU123604A1/en
Application granted granted Critical
Publication of SU123604A1 publication Critical patent/SU123604A1/en

Links

Description

Предлагаемое изобретение относитс  к устройствам дл  контрол  работы асинхронного двигател .The present invention relates to devices for monitoring the operation of an asynchronous motor.

Описываемое устройство отличаетс  от известных тем, что в нем применены два измерительных трансформатора. Один из них имеет четыре первичных обмотки, из которых две включены в цепи разных фаз двигател  последовательно с соответствующими обмотками другого трансформатора , треть  - на линейное напр жение сети последовательно с соответствующей обмоткой второго трансформатора и катушкой индуктивности , параметры которой соответствуют параметрам намагничивани  цепи двигател , а четверта  - на линейное напр жение сети через активное и индуктивное сопротивлени , имитирующие активное сопротивление статора и сумму индуктивных сопротивлений статора и ротора. К вторичным обмоткам указанных трансформаторов подключен индикатор скорости.The described device differs from the known ones in that it uses two measuring transformers. One of them has four primary windings, two of which are included in the circuits of different motor phases in series with the corresponding windings of the other transformer, a third is connected to the line voltage of the network in series with the corresponding winding of the second transformer and inductance coil, the parameters of which correspond to the parameters of the motor circuit magnetization, and the fourth - to the linear voltage of the network through active and inductive resistances, imitating the active resistance of the stator and the sum of the inductive resistances of the torus and rotor. A speed indicator is connected to the secondary windings of the specified transformers.

Предлагаемое устройство может быть использовано в тех случа х, когда нет доступа к валу двигател  и его скорость не может быть измерена обычными методами.The proposed device can be used in cases where there is no access to the engine shaft and its speed cannot be measured by conventional methods.

На чертеже изображена электрическа  схема предлагаемого устройства.The drawing shows the electrical circuit of the proposed device.

Устройство содержит два измерительных трансформатора / и 2. Три первичных обмотки трансформатора 1 соединены последовательно с трем  соответствующими обмотками трансформатора 2 и включены: две - в рассечку двух фаз между питающей сетью и асинхронным двигателем 3, а треть  обмотка-на линейное напр жение сети через дроссель 4, параметры которого выбраны таким образом, чтобы через эти обмотки протекал ток, пропорциональный намагничивающему току двигател . Четверта  обмотка трансформатора 2 включена на линейное напр жение сети через активное 5 и индуктивное 6 сопротивлени , имитирующие активное сопротивление статора и сумму эквивалентных индуктивных сопротивлений статора и ротора.The device contains two measuring transformers / and 2. Three primary windings of transformer 1 are connected in series with three corresponding windings of transformer 2 and are included: two - in cutting two phases between the supply network and induction motor 3, and a third winding - on the line voltage of the network through the choke 4, the parameters of which are chosen in such a way that a current through these windings is proportional to the magnetizing current of the motor. The fourth winding of the transformer 2 is connected to the line voltage of the network through active 5 and inductive 6 resistance, simulating the active resistance of the stator and the sum of equivalent inductive resistances of the stator and rotor.

При использовании устройства в качестве измерител  скорости двигател  к вторичным обмоткам обоих трансформаторов через выпр мители 7 и 5 подключаютс  рамки логометра 5, измер ющего отношение напр жений на этих обмотках, пропорциональное скорости вращени  контролируемого двигател .When using the device as a motor speed meter, the secondary windings of both transformers through rectifiers 7 and 5 connect the frames of the flowmeter 5, which measures the ratio of the voltages on these windings, proportional to the rotational speed of the motor being monitored.

SU617225A 1959-01-21 1959-01-21 Device for controlling the operation of an asynchronous motor SU123604A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU617225A SU123604A1 (en) 1959-01-21 1959-01-21 Device for controlling the operation of an asynchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU617225A SU123604A1 (en) 1959-01-21 1959-01-21 Device for controlling the operation of an asynchronous motor

Publications (1)

Publication Number Publication Date
SU123604A1 true SU123604A1 (en) 1959-11-30

Family

ID=48395153

Family Applications (1)

Application Number Title Priority Date Filing Date
SU617225A SU123604A1 (en) 1959-01-21 1959-01-21 Device for controlling the operation of an asynchronous motor

Country Status (1)

Country Link
SU (1) SU123604A1 (en)

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