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Title:
DIFFERENTIAL CURRENT MONITORING DEVICE WITH ARC DETECTION
Document Type and Number:
WIPO Patent Application WO/2014/056707
Kind Code:
A3
Abstract:
The invention relates to a differential current monitoring device (2) for monitoring differential currents in power supply systems (4), having a first measuring current transformer (26) and a measuring circuit (28) for determining the differential current and having a computing unit (36) for evaluating the differential current and for generating a switch-off signal (40). The differential current monitoring device has a system (30, 32, 34, 36) for detecting arcs, the integration of which according to the invention can considerably reduce the technical outlay needed to monitor the differential current, combined with arc detection, in comparison with a functionally and spatially separate arrangement of both protective measures.

Inventors:
MÖLL, Winfried (Burgstraße 16, Laubach, 35321, DE)
SCHÄFER, Oliver (Egerländer Straße 7, Grünberg, 35305, DE)
SELLNER, Harald (Renthof 10, Grünberg, 35305, DE)
HÄUSLEIN, Bernd (Herrnhüttestraße 45b, Nürnberg, 90411, DE)
KAMMER, Michael (Am Gemeindewald 13, Hungen, 35410, DE)
DECKER, Timm (Platanenweg 10, Schwerte, 58239, DE)
STROBL, Christian (Hopfenweg 8, Burgthann, 90559, DE)
WEBER, Waldemar (Bulmannstraße 53, Nürnberg, 90459, DE)
WIERSCH, Markus (Rennweg 7, Nürnberg, 90489, DE)
ZEBERL, Jürgen (Dippersricht 15, Lauterhofen, 92283, DE)
Application Number:
EP2013/069639
Publication Date:
April 17, 2014
Filing Date:
September 20, 2013
Export Citation:
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Assignee:
BENDER GMBH & CO. KG (Londorfer Straße 65, Grünberg, 35305, DE)
ELLENBERGER & POENSGEN GMBH (Industriestraße 2-8, Altdorf, 90518, DE)
International Classes:
H02H1/00; G01R31/40; H01H83/20; H01H83/22; H02H3/33; H02H7/122; H02H7/20
Domestic Patent References:
2004-06-03
Foreign References:
US20100324747A12010-12-23
US4568899A1986-02-04
US5095398A1992-03-10
Attorney, Agent or Firm:
TAPPE, Hartmut (advotec. Patent- und Rechtsanwälte, Georg-Schlosser-Strasse 6, Gießen, 35390, DE)
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