Electroerosion of electric contacts
Contact wire of electrified railways and current collecting elements of strips of current collectors are working under atmospheric conditions, often causing failure of its interaction. Electrical discharges occur as a result of failure of the direct interaction between the contacts. Erosion of elect...
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| Format: | Article |
| Language: | Russian |
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Joint Stock Company «Railway Scientific and Research Institute»
2016-04-01
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| Series: | Вестник Научно-исследовательского института железнодорожного транспорта |
| Subjects: | |
| Online Access: | https://www.journal-vniizht.ru/jour/article/view/81 |
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| _version_ | 1849402025531408384 |
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| author | V. Y. Berent |
| author_facet | V. Y. Berent |
| author_sort | V. Y. Berent |
| collection | DOAJ |
| description | Contact wire of electrified railways and current collecting elements of strips of current collectors are working under atmospheric conditions, often causing failure of its interaction. Electrical discharges occur as a result of failure of the direct interaction between the contacts. Erosion of electric contacts occurs as a result of such discharges. Matrix type contacts, recommendations on its composition as well as nature of its damageability were considered. Destructions of carbon materials by arc discharge were investigated. Higher erosion resistance to metal-carbon inserts is shown. Positive role of low-melting phase in composition of frame-type contacts under the influence of an electric arc are confirmed. The erosion damages to the contacts during current collecting of high-density currents were considered. It is concluded that the construction of the contacts of frame type with a carbon matrix comes down to putting into it low-melting phase in the form of copper or its alloys by impregnation technology. Creation of contacts of frame type on a metal basis is carried out by input fusible metal into a framework of more high-melting metal through a charge of a powder composite or by technology of impregnation of already sintered material. |
| format | Article |
| id | doaj-art-d66350c2e99d42df9bfe74fc079987ca |
| institution | Kabale University |
| issn | 2223-9731 2713-2560 |
| language | Russian |
| publishDate | 2016-04-01 |
| publisher | Joint Stock Company «Railway Scientific and Research Institute» |
| record_format | Article |
| series | Вестник Научно-исследовательского института железнодорожного транспорта |
| spelling | doaj-art-d66350c2e99d42df9bfe74fc079987ca2025-08-20T03:37:38ZrusJoint Stock Company «Railway Scientific and Research Institute»Вестник Научно-исследовательского института железнодорожного транспорта2223-97312713-25602016-04-0102889681Electroerosion of electric contactsV. Y. Berent0Joint Stock Company Railway Research Institute (JSC “VNIIZhT”)Contact wire of electrified railways and current collecting elements of strips of current collectors are working under atmospheric conditions, often causing failure of its interaction. Electrical discharges occur as a result of failure of the direct interaction between the contacts. Erosion of electric contacts occurs as a result of such discharges. Matrix type contacts, recommendations on its composition as well as nature of its damageability were considered. Destructions of carbon materials by arc discharge were investigated. Higher erosion resistance to metal-carbon inserts is shown. Positive role of low-melting phase in composition of frame-type contacts under the influence of an electric arc are confirmed. The erosion damages to the contacts during current collecting of high-density currents were considered. It is concluded that the construction of the contacts of frame type with a carbon matrix comes down to putting into it low-melting phase in the form of copper or its alloys by impregnation technology. Creation of contacts of frame type on a metal basis is carried out by input fusible metal into a framework of more high-melting metal through a charge of a powder composite or by technology of impregnation of already sintered material.https://www.journal-vniizht.ru/jour/article/view/81electric erosionelectric arccontacts of matrix typearc of matrix typecontacts of frame typecoal insertsmetal-carbon insertspowder contact plateshigh-melting component of contact composite |
| spellingShingle | V. Y. Berent Electroerosion of electric contacts Вестник Научно-исследовательского института железнодорожного транспорта electric erosion electric arc contacts of matrix type arc of matrix type contacts of frame type coal inserts metal-carbon inserts powder contact plates high-melting component of contact composite |
| title | Electroerosion of electric contacts |
| title_full | Electroerosion of electric contacts |
| title_fullStr | Electroerosion of electric contacts |
| title_full_unstemmed | Electroerosion of electric contacts |
| title_short | Electroerosion of electric contacts |
| title_sort | electroerosion of electric contacts |
| topic | electric erosion electric arc contacts of matrix type arc of matrix type contacts of frame type coal inserts metal-carbon inserts powder contact plates high-melting component of contact composite |
| url | https://www.journal-vniizht.ru/jour/article/view/81 |
| work_keys_str_mv | AT vyberent electroerosionofelectriccontacts |