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Influence of short-circuit AC currents on electrical contact resistance of low voltage relays


[ 1 ] Instytut Elektroenergetyki, Wydział Elektryczny, Politechnika Poznańska | [ P ] employee

Year of publication


Published in

Poznan University of Technology Academic Journals. Electrical Engineering

Journal year: 2012 | Journal number: Issue 70

Article type

scientific article

Publication language


  • electrical contact resistance
  • ECR
  • short-circuit current
  • low voltage relays

EN Electromagnetic relays can be exposed to many hazardous phenomena during their lifetime. The most vulnerable part of an relay to their adverse effects are his electrical contacts. One of many parameters describing electrical contacts is their resistance. In this article experiments regarding the impact of short-circuit currents at make on electrical contact resistance of electromagnetic relays is described.

Pages (from - to)

99 - 103

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