UA103934C2 - Protection device against effect of reverse energy flow of asynchronous motor to damage point of supply cable - Google Patents

Protection device against effect of reverse energy flow of asynchronous motor to damage point of supply cable

Info

Publication number
UA103934C2
UA103934C2 UAA201201369A UAA201201369A UA103934C2 UA 103934 C2 UA103934 C2 UA 103934C2 UA A201201369 A UAA201201369 A UA A201201369A UA A201201369 A UAA201201369 A UA A201201369A UA 103934 C2 UA103934 C2 UA 103934C2
Authority
UA
Ukraine
Prior art keywords
asynchronous motor
supply cable
switching apparatus
powerful
resistors
Prior art date
Application number
UAA201201369A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Константин Николаевич Маренич
Инна Владимировна Ковалёва
Игорь Александрович Лагута
Original Assignee
Государственное Высшее Учебное Заведение “Донецкий Национальный Технический Университет”
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 Государственное Высшее Учебное Заведение “Донецкий Национальный Технический Университет” filed Critical Государственное Высшее Учебное Заведение “Донецкий Национальный Технический Университет”
Priority to UAA201201369A priority Critical patent/UA103934C2/en
Publication of UA103934C2 publication Critical patent/UA103934C2/en

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  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention relates to electrical engineering and can be used for improving safety of electric complexes of mining process installations operation, when any circuit of enhanced conductivity between ground and a phase occurs in an asynchronous motor supply cable. A protection device against impact of reverse energy flow to a damage point of asynchronous motor supply cable comprises in series connected first resistor and a diode, whose cathode is connected to an asynchronous motor metal housing, also a circuit for connection stator windings according to a three-phase circuit, wherein a powerful of switching apparatus is in series connected to each stator phase winding, to the input of switching apparatus an output of react member is connected. Moreover, the device is provided with two capacitor and three resistors, first leads of the resistors are connected to the input terminals of stator of first, second and third phases in the connection points of the first terminals of powerful s of switching apparatus, the second leads of resistors are united and connected to in series connected capacitors, one of the capacitors and the input of react member are parallel connected to the first resistor, the second terminals of powerful s of the switching apparatus serve as the connection points for power conductors of the asynchronous motor supply cable.
UAA201201369A 2012-02-09 2012-02-09 Protection device against effect of reverse energy flow of asynchronous motor to damage point of supply cable UA103934C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
UAA201201369A UA103934C2 (en) 2012-02-09 2012-02-09 Protection device against effect of reverse energy flow of asynchronous motor to damage point of supply cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
UAA201201369A UA103934C2 (en) 2012-02-09 2012-02-09 Protection device against effect of reverse energy flow of asynchronous motor to damage point of supply cable

Publications (1)

Publication Number Publication Date
UA103934C2 true UA103934C2 (en) 2013-12-10

Family

ID=52285365

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201201369A UA103934C2 (en) 2012-02-09 2012-02-09 Protection device against effect of reverse energy flow of asynchronous motor to damage point of supply cable

Country Status (1)

Country Link
UA (1) UA103934C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2805480C1 (en) * 2023-04-12 2023-10-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Донецкий национальный технический университет" Protection device against the action of the reverse energy flow of an asynchronous motor to a fault point in the power cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2805480C1 (en) * 2023-04-12 2023-10-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Донецкий национальный технический университет" Protection device against the action of the reverse energy flow of an asynchronous motor to a fault point in the power cable

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