Study of the breaking capacity of a 35 kV-31.5 kA/2000 A vacuum circuit breaker with an axial magnetic field
Jazyk: | ruština |
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Rok vydání: | 2022 |
Předmět: |
конÑакÑÐ½Ð°Ñ ÑиÑÑема
акÑиалÑное магниÑное поле вакÑÑÐ¼Ð½Ð°Ñ Ð´ÑгогаÑиÑелÑÐ½Ð°Ñ ÐºÐ°Ð¼ÐµÑа оÑÐµÐ²Ð°Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñа магниÑной индÑкÑии макÑималÑнÑй оÑклÑÑаемÑй Ñок maximum disabled current axial magnetic field vacuum arc temperature camera contact system axial magnetic induction component |
DOI: | 10.18720/spbpu/3/2023/vr/vr23-5 |
Popis: | Тема вÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ: «ÐÑÑледование оÑклÑÑаÑÑей ÑпоÑобноÑÑи вакÑÑмного вÑклÑÑаÑÐµÐ»Ñ 35 кÐ-31,5кÐ/2000 Ð Ñ Ð°ÐºÑиалÑнÑм магниÑнÑм полем ».ÐÐ°Ð½Ð½Ð°Ñ ÑабоÑа поÑвÑÑена изÑÑениÑ, ÑазÑабоÑке и Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Ð¾ÑклÑÑаÑÑей ÑпоÑобноÑÑи вакÑÑмнÑÑ Ð²ÑклÑÑаÑелей пÑи ÑазлиÑнÑÑ Ð³ÐµÐ¾Ð¼ÐµÑÑиÑÑ . ÐадаÑи, ÑеÑаемÑе в Ñ Ð¾Ð´Ðµ иÑÑледованиÑ:ÐÑÑледование Ñ Ð°ÑакÑеÑиÑÑик вакÑÑмнÑÑ Ð²ÑклÑÑаÑелей Ñ Ð°ÐºÑиалÑнÑм магниÑнÑм полем и меÑодом гаÑÐµÐ½Ð¸Ñ Ð´Ñги в вакÑÑмнÑÑ Ð´ÑгогаÑиÑелÑнÑÑ ÐºÐ°Ð¼ÐµÑÐ°Ñ ÐÑедваÑиÑелÑнÑй вÑÐ±Ð¾Ñ Ð¼Ð°ÑеÑиалов и ÑазмеÑов конÑÑÑÑкÑии дÑгогаÑиÑелÑной камеÑÑÐнализ взаимодейÑÑÐ²Ð¸Ñ Ð²Ð°ÐºÑÑмного вÑклÑÑаÑелÑÂ Ñ ÑеÑÑÑ, в ÑаÑÑноÑÑи,         анализ       номиналÑнÑÑ Â Â Â Â Ð¿Ð°ÑамеÑÑов         и      пеÑÐµÑ Ð¾Ð´Ð½Ð¾Ð³Ð¾ воÑÑÑанавливаÑÑегоÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð¿Ñи коÑоÑком замÑканииÐÑоведение ÑаÑÑÑÑов моделей ÑлекÑÑомагниÑнÑÑ Ð¿ÑоÑеÑÑов в вакÑÑмной дÑгогаÑиÑелÑной камеÑе, Ñ ÑелÑÑ Ð¾Ñенки оÑклÑÑаÑÑей ÑпоÑобноÑÑиРданной ÑабоÑе Ð¼Ñ Ð¿Ñовели ÑÑавниÑелÑнÑй анализ вакÑÑмнÑÑ Ð¸ ÑлегазовÑÑ Ð²ÑклÑÑаÑелей. ÐÑоанализиÑÐ¾Ð²Ð°Ð½Ñ Ð·Ð°Ð²Ð¸ÑимоÑÑÑ ÑÑÑойÑивоÑÑи гоÑÐµÐ½Ð¸Ñ Ð´Ñги и Ñоковой геÑмеÑизаÑии Ð¾Ñ Ð¼Ð°ÑеÑиала конÑакÑов и влиÑние геомеÑÑии конÑакÑов на акÑиалÑное магниÑное поле. ÐодобÑали номиналÑнÑе паÑамеÑÑÑ Ð²Ð°ÐºÑÑмного вÑклÑÑаÑÐµÐ»Ñ Ð¸ вÑполнили ÑаÑÑÐµÑ Ð½Ð¾ÑмиÑованнÑÑ Ð¿Ð°ÑамеÑÑов ÐÐÐ. ÐÑÑледована маÑемаÑиÑеÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¿ÑоÑеÑÑов, пÑоиÑÑ Ð¾Ð´ÑÑÐ¸Ñ Ð² вакÑÑмной дÑгогаÑиÑелÑной камеÑе.Ð ÑезÑлÑÑаÑе пÑоведено моделиÑование ÑлекÑÑомагниÑнÑÑ Ð¿ÑоÑеÑÑов в вакÑÑмной камеÑе  и ÑаÑÑÐµÑ Ð°ÐºÑиалÑной ÑоÑÑавлÑÑÑей магниÑной индÑкÑии Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¾ÑклÑÑаÑÑей ÑпоÑобноÑÑи. ÐоделиÑование пÑедÑÑавлÑÐµÑ Ñобой ÐÑлÑÑиплаÑÑоÑменное пÑогÑаммное обеÑпеÑение COMSOL Multiphysics Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° меÑодом конеÑнÑÑ ÑлеменÑов. Theme of final qualification work: âStudy of the breaking capacity of a 35 kV-31.5 kA/2000 A vacuum circuit breaker with an axial magnetic fieldâ.This work is devoted to the study, development and analysis of the breaking capacity of vacuum circuit breakers for various geometries. Tasks to be solved in the course of the study:Preliminary selection of materials and dimensions of the construction of the arc chuteAnalysis of the interaction of the vacuum circuit breaker with the network, in particular, the analysis of the nominal parameters and the transient recovery voltage during a short circuitCarrying out calculations of models of electromagnetic processes in a vacuum arc chute, in order to assess the breaking capacityAs a result, electromagnetic processes were simulated in a vacuum interrupter chamber and the axial component of magnetic induction was calculated to determine the breaking capacity. The simulation was carried out using the crossplatform software COMSOL Multiphysics, adapted for analysis by the finite element method. In this paper, we carried out a comparative analysis of vacuum and gas-insulated circuit breakers. The dependence of the arcing stability and current sealing on the contact material and the influence of the contact geometry on the axial magnetic field are analyzed. The nominal parameters of the vacuum circuit breaker were selected and the normalized parameters of the HPV were calculated. A mathematical model of processes occurring in a vacuum arc chute has been studied.As a result, modeling of electromagnetic processes in a vacuum chamber and calculation of the axial component of magnetic induction were carried out to determine the breaking capacity. Simulation is COMSOL Multiphysics Multiplatform Finite Element Analysis Software. |
Databáze: | OpenAIRE |
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