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Abstract
For protection against electric shock in low voltage systems residual current devices are commonly used. However, their proper operation can be interfered when high frequency earth fault current occurs. Serious hazard of electrocution exists then. In order to detect such a current, it is necessary to modify parameters of residual current devices, especially the operating point of their current transformer. The authors proposed the modification in the structure of residual current devices. This modification improves sensitivity of residual current devices when high frequency earth fault current occurs. The test of the modified residual current device proved that the authors’ proposition is appropriate.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/aee-2017-0036
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- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
-
Archives of Electrical Engineering
no. 66,
edition 3,
pages 485 - 494,
ISSN: 1427-4221 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Czapp S., Dobrzyński K., Klucznik J., Lubośny Z., Kowalak R.: Improving sensitivity of residual current transformers to high frequency earth fault currents// Archives of Electrical Engineering. -Vol. 66., iss. 3 (2017), s.485-494
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/aee-2017-0036
- Verified by:
- Gdańsk University of Technology
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