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Title:
SAFETY DEVICE FOR A PHOTOVOLTAIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/037740
Kind Code:
A3
Abstract:
The invention relates to a safety device (20) for a photovoltaic system for feeding into a power supply system (50), comprising at least one input (21, 22) for connection to a PV generator (10) and at least one output (23, 24) for connection to an inverter (30), and comprises a switching element (29) for de-energizing the at least one output (23, 24). The safety device (20) is distinguished by the fact that it comprises an evaluating unit (27) which is arranged for switching the switching element (29) in dependence on a low-frequency signal at the at least one output (23, 24). The invention also relates to a method for operating such a safety device (20).

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Inventors:
FRIEBE JENS (DE)
BIENIEK SEBASTIAN (DE)
Application Number:
PCT/EP2012/067667
Publication Date:
April 10, 2014
Filing Date:
September 10, 2012
Export Citation:
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Assignee:
SMA SOLAR TECHNOLOGY AG (DE)
FRIEBE JENS (DE)
BIENIEK SEBASTIAN (DE)
International Classes:
H01L31/02
Domestic Patent References:
WO2010078303A22010-07-08
Foreign References:
DE102006060815A12008-06-19
US20090141522A12009-06-04
EP1326286A12003-07-09
EP2048679A12009-04-15
DE102010054354A12012-06-14
EP2299497A12011-03-23
Attorney, Agent or Firm:
KLEINE, Hubertus et al. (Bielefeld, DE)
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