INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER

INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER

Introduction. In the last 10-15 years a dominant position in the market of medium voltage circuit breakers, vacuum circuit breakers have taken in which as an actuator mono- or bistable actuators with permanent magnets are used. Such circuit breakers are characterized by simplicity of design, high re...

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Date:2017
Main Authors: Baida, E. I., Klymenko, B. V.
Format: Article
Language:English
Russian
Published: National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2017
Subjects:
vacuum circuit breakers
mechanical calculations
shaft deformation
621.3.04
621.316
Online Access:http://eie.khpi.edu.ua/article/view/2074-272X.2017.1.02
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Journal Title:Electrical Engineering & Electromechanics

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Electrical Engineering & Electromechanics
id eiekhpieduua-article-94080
record_format ojs
institution Electrical Engineering & Electromechanics
baseUrl_str
datestamp_date 2017-08-21T18:32:10Z
collection OJS
language English
Russian
topic vacuum circuit breakers
mechanical calculations
shaft deformation
621.3.04
621.316
spellingShingle vacuum circuit breakers
mechanical calculations
shaft deformation
621.3.04
621.316
Baida, E. I.
Klymenko, B. V.
INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
topic_facet vacuum circuit breakers
mechanical calculations
shaft deformation
621.3.04
621.316
вакуумные выключатели
механические напряжения
деформация вала
621.3.04
621.316
вакуумные выключатели
механические напряжения
деформация вала
621.3.04
621.316
format Article
author Baida, E. I.
Klymenko, B. V.
author_facet Baida, E. I.
Klymenko, B. V.
author_sort Baida, E. I.
title INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
title_short INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
title_full INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
title_fullStr INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
title_full_unstemmed INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER
title_sort investigation of mechanical stresses in the drive shaft of mv vacuum circuit breaker
title_alt ИССЛЕДОВАНИЕ МЕХАНИЧЕСКИХ НАПРЯЖЕНИЙ В ПРИВОДНОМ ВАЛУ ВАКУУМНОГО ВЫКЛЮЧАТЕЛЯ СРЕДНИХ НАПРЯЖЕНИЙ
ИССЛЕДОВАНИЕ МЕХАНИЧЕСКИХ НАПРЯЖЕНИЙ В ПРИВОДНОМ ВАЛУ ВАКУУМНОГО ВЫКЛЮЧАТЕЛЯ СРЕДНИХ НАПРЯЖЕНИЙ
description Introduction. In the last 10-15 years a dominant position in the market of medium voltage circuit breakers, vacuum circuit breakers have taken in which as an actuator mono- or bistable actuators with permanent magnets are used. Such circuit breakers are characterized by simplicity of design, high reliability, require preventive maintenance for many years. Development, research and improvement of vacuum circuit breakers are carried out at the Department for Electrical Apparatus, National Technical University «Kharkiv Polytechnic Institute». While working on the circuit breakers, developers have to deal with two related objectives – electrical and mechanical. This paper considers the solution of one of these problems – calculation of mechanical forces in the drive shaft of the vacuum circuit breaker in static and dynamic modes. This work was preceded by the failure of the results of measurements of the prototype circuit breakers’ contacts. Measurements have shown that these values do not match the expected values (there were less than the value of 0.8 to 1 mm). The assumption about the reasons for this discrepancy needed to be detailed checked. The results of the work done are presented in this paper. Purpose. Investigation of static and dynamic mechanical stresses and strains in the drive shaft of the vacuum circuit breaker mechanism to determine its characteristics and material selection. Methods. The investigation of mechanical processes is performed by the finite element method in the COMSOL software package. Results. We obtain the static and dynamic characteristics of the circuit breaker drive shaft: deformations, reaction forces, stresses. These characteristics made it possible to determine the actual course of the contacts, select shaft material and calculate the forces acting on the bearings. Conclusions. It is shown that the contact velocity and contact pressure are different from the theoretical value due to the deformation of the shaft. The forces acting on the thrust bearings dynamically are by 16-39% higher than the static ones. It is assumed that further refinement of the mathematical model takes into account the traction insulators and housing, as well as dynamics of the circuit breaker.
publisher National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
publishDate 2017
url http://eie.khpi.edu.ua/article/view/2074-272X.2017.1.02
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AT klymenkobv investigationofmechanicalstressesinthedriveshaftofmvvacuumcircuitbreaker
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first_indexed 2025-07-17T11:46:38Z
last_indexed 2025-07-17T11:46:38Z
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spelling eiekhpieduua-article-940802017-08-21T18:32:10Z INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER ИССЛЕДОВАНИЕ МЕХАНИЧЕСКИХ НАПРЯЖЕНИЙ В ПРИВОДНОМ ВАЛУ ВАКУУМНОГО ВЫКЛЮЧАТЕЛЯ СРЕДНИХ НАПРЯЖЕНИЙ ИССЛЕДОВАНИЕ МЕХАНИЧЕСКИХ НАПРЯЖЕНИЙ В ПРИВОДНОМ ВАЛУ ВАКУУМНОГО ВЫКЛЮЧАТЕЛЯ СРЕДНИХ НАПРЯЖЕНИЙ Baida, E. I. Klymenko, B. V. vacuum circuit breakers mechanical calculations shaft deformation 621.3.04 621.316 вакуумные выключатели механические напряжения деформация вала 621.3.04 621.316 вакуумные выключатели механические напряжения деформация вала 621.3.04 621.316 Introduction. In the last 10-15 years a dominant position in the market of medium voltage circuit breakers, vacuum circuit breakers have taken in which as an actuator mono- or bistable actuators with permanent magnets are used. Such circuit breakers are characterized by simplicity of design, high reliability, require preventive maintenance for many years. Development, research and improvement of vacuum circuit breakers are carried out at the Department for Electrical Apparatus, National Technical University «Kharkiv Polytechnic Institute». While working on the circuit breakers, developers have to deal with two related objectives – electrical and mechanical. This paper considers the solution of one of these problems – calculation of mechanical forces in the drive shaft of the vacuum circuit breaker in static and dynamic modes. This work was preceded by the failure of the results of measurements of the prototype circuit breakers’ contacts. Measurements have shown that these values do not match the expected values (there were less than the value of 0.8 to 1 mm). The assumption about the reasons for this discrepancy needed to be detailed checked. The results of the work done are presented in this paper. Purpose. Investigation of static and dynamic mechanical stresses and strains in the drive shaft of the vacuum circuit breaker mechanism to determine its characteristics and material selection. Methods. The investigation of mechanical processes is performed by the finite element method in the COMSOL software package. Results. We obtain the static and dynamic characteristics of the circuit breaker drive shaft: deformations, reaction forces, stresses. These characteristics made it possible to determine the actual course of the contacts, select shaft material and calculate the forces acting on the bearings. Conclusions. It is shown that the contact velocity and contact pressure are different from the theoretical value due to the deformation of the shaft. The forces acting on the thrust bearings dynamically are by 16-39% higher than the static ones. It is assumed that further refinement of the mathematical model takes into account the traction insulators and housing, as well as dynamics of the circuit breaker. В статье исследуются процессы, которые определяют механические напряжения в приводном вале вакуумного выключателя в статическом и динамическом режимах работы. Показано, что механическая деформация вала вызывает уменьшение провала контактов на величину до 30% и сил контактного нажатия на (10-11)%, эти значения не критичны и мало влияют на работу выключателя. Получены значения сил, действующих на опоры вала. Показано, что динамические усилия в опорах на (19-38)% больше статических. Полученные значения усилий позволяют выбрать материал вала и подшипники. В статье исследуются процессы, которые определяют механические напряжения в приводном вале вакуумного выключателя в статическом и динамическом режимах работы. Показано, что механическая деформация вала вызывает уменьшение провала контактов на величину до 30% и сил контактного нажатия на (10-11)%, эти значения не критичны и мало влияют на работу выключателя. Получены значения сил, действующих на опоры вала. Показано, что динамические усилия в опорах на (19-38)% больше статических. Полученные значения усилий позволяют выбрать материал вала и подшипники. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2017-02-26 Article Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2017.1.02 10.20998/2074-272X.2017.1.02 Electrical Engineering & Electromechanics; No. 1 (2017); 10-15 Электротехника и Электромеханика; № 1 (2017); 10-15 Електротехніка і Електромеханіка; № 1 (2017); 10-15 2309-3404 2074-272X en ru http://eie.khpi.edu.ua/article/view/2074-272X.2017.1.02/89708 http://eie.khpi.edu.ua/article/view/2074-272X.2017.1.02/89709 Copyright (c) 2017 E. I. Baida, B. V. Klymenko https://creativecommons.org/licenses/by-nc/4.0

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