Electrical safety in low-voltage DC microgrids with B-type residual current devices - Publication - Bridge of Knowledge

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Electrical safety in low-voltage DC microgrids with B-type residual current devices

Abstract

Residual current devices (RCDs) are most popular devices used in low-voltage installations for protection against electric shock and fire. In cases of high risk of electric shock the application of RCDs is mandatory. Currently, the spread of local direct current (DC) microgrids is widely considered. This creates new challenges for protective systems, in particular those based on RCDs. The main purpose of the research is to test the operation of B-type RCDs by simulating the conditions that may occur in DC microgrids as well as assessment of the effectiveness of electrical safety with the use of such RCDs. The research has revealed that theoretically identical RCDs in terms of technical data can have different tripping properties, including no reaction to residual direct current, which poses a risk of electric shock. This signalizes the necessity of extension of the normative tests performed by manufacturers. The scope of these additional RCDs tests is indicated, from the point of view of the persons’ safety in DC microgrids.

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Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.17531/ein.2022.2.16
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Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
Eksploatacja i Niezawodność - Maintenance and Reliability no. 24, pages 346 - 358,
ISSN: 1507-2711
Language:
English
Publication year:
2022
Bibliographic description:
Czapp S., Tariq H., Szultka S., Szultka A., Zaitseva E., Levashenko V.: Electrical safety in low-voltage DC microgrids with B-type residual current devices// Eksploatacja i Niezawodność - Maintenance and Reliability -Vol. 24,iss. 2 (2022), s.346-358
DOI:
Digital Object Identifier (open in new tab) 10.17531/ein.2022.2.16
Sources of funding:
  • COST_FREE
Verified by:
Gdańsk University of Technology

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