{"title":"Application of Synchrophasor Measurement to Restore the Secondary Current of the Saturated Current Transformer","authors":"S. Piskunov, A. Mokeev","doi":"10.1109/RPA51116.2020.9301740","DOIUrl":"https://doi.org/10.1109/RPA51116.2020.9301740","url":null,"abstract":"Currently, electromagnetic current transformers (CT) are widely used in the electric power industry as primary current transmitters. A feature of their design is the presence of a ferromagnetic core, which in certain transient modes of operation of the power system (for example, a short-circuit) can be saturated, while causing non-linear distortion of the secondary current. This can reduce the sensitivity and speed of relay protection devices [1] .","PeriodicalId":299510,"journal":{"name":"2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126803960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Possiblity of Using Phasor Measurement Units for the Distance Determination to the Disturbance Point","authors":"P. Avdonin, T. Klimova","doi":"10.1109/RPA51116.2020.9301738","DOIUrl":"https://doi.org/10.1109/RPA51116.2020.9301738","url":null,"abstract":"One of the issues of current importance is using phasor measurements unit (PMU) for the Wide Area Monitoring, Protection and Control System (WAMPAC). However, there is no clear understanding of the possibility of implementing relay protection functions based on these devices when filtering electrical quantities signals. Since the technology of synchronized vector measurements is relatively young in the electric power industry, various studies are currently being carried out on the applicability of the PMU functions in relay protection. Moreover, new calculation algorithms implemented in these devices are proposed. There is an ever-increasing introduction of PMU at electric power facilities as part of the WAMS complex for collecting and analyzing information both online and for subsequent analysis in order to monitor network parameters and equipment. The problems of determining the type of disturbance from the measurements obtained by PMU installed at various points of the power grid are considered worldwide. It is advisable to consider the possibility of estimating the distance to the point of application of the disturbance.","PeriodicalId":299510,"journal":{"name":"2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126021614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E.F. Khakimzianov, M. N. Simonova, R. Galiev, A. Sharipova
{"title":"Investigation of a Voltage Transformer in Conditions of Thunderstorm Activity","authors":"E.F. Khakimzianov, M. N. Simonova, R. Galiev, A. Sharipova","doi":"10.1109/RPA51116.2020.9301737","DOIUrl":"https://doi.org/10.1109/RPA51116.2020.9301737","url":null,"abstract":"One of the sources of external overvoltage in electrical networks is lightning discharges. Lightning (atmospheric) overvoltage is divided into two types: • direct lightning strike to current-carrying elements of the electrical network (overvoltage of direct lightning strike); • lightning strike near an overhead electric line or electrical switchgear (induced voltage surge), which is caused by the mutual electromagnetic connection of the lightning channel with current-carrying and grounded network elements.","PeriodicalId":299510,"journal":{"name":"2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123619158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. V. Petrov, A. Popov, I. A. Goryachevsky, S. Piskunov, D. N. Ulyanov, I. N. Yudin
{"title":"Distributing Network Automation to Increase the Reliability Power Supply to Consumers","authors":"K. V. Petrov, A. Popov, I. A. Goryachevsky, S. Piskunov, D. N. Ulyanov, I. N. Yudin","doi":"10.1109/RPA51116.2020.9301734","DOIUrl":"https://doi.org/10.1109/RPA51116.2020.9301734","url":null,"abstract":"The normal operation of industrial enterprises, household consumers, and social institutions depends on the reliability of power supply. Disruption of the operating mode of power supply system’s leads to material damage to both consumers and suppliers of electricity. Minimizing interruptions and increasing the reliability of power supply to consumers is an urgent problem. Urban, rural, and industrial distribution networks of voltage level 6-35 kV are highly ramified and currently have a weak degree of observation and automation.","PeriodicalId":299510,"journal":{"name":"2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122227677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Copyright notice]","authors":"","doi":"10.1109/rpa51116.2020.9301721","DOIUrl":"https://doi.org/10.1109/rpa51116.2020.9301721","url":null,"abstract":"","PeriodicalId":299510,"journal":{"name":"2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131338975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}