EP 2393088 A1 20111207 - Method and device for overvoltage protection of direct-current electrical circuits with currents even in tens of amperes, especially of photovoltaic sources of electric current
Title (en)
Method and device for overvoltage protection of direct-current electrical circuits with currents even in tens of amperes, especially of photovoltaic sources of electric current
Title (de)
Methode zum Überspannungsschutz von Gleichstromkreisen mit Strom von Dutzenden von Ampère, vorzugsweise von photovoltaischen Stromquellen, und entsprechende Vorrichtung
Title (fr)
Méthode de protection contre les surtensions de circuits électriques à courant continu de plusieurs dizaines d' ampère, spécialement de source de courant photovoltaique, et dispositif de protection correspondant
Publication
Application
Priority
CZ 2010440 A 20100603
Abstract (en)
The invention relates to the method of overvoltage protection of direct-current electrical circuits with currents even in tens of amperes, especially of photovoltaic sources of electric current, at which in the device for overvoltage protection the current path in the point (X) of intentional cutting off the current path is disconnected. During cutting off the current path in the point (X) between the current path elements being disconnected the value of electric current is limited, through which occurrence of uncontrolled electric arc between the current path parts being disconnected is suppressed. The invention also relates to the corresponding device, which comprises contacts (00) for connection of electric conductors of protected circuit, between the contacts (00) there is arranged the current path with at least one varistor (1), between the varistor (1) and one contact (00) there is created the point (X) of intentional cutting off the current path with soldered joint of surface of the fixed element of the current path and of surface of moving element of current path.
IPC 8 full level
H01C 7/12 (2006.01); H01H 9/42 (2006.01); H01H 83/10 (2006.01)
CPC (source: EP)
H01C 7/126 (2013.01); H01H 9/42 (2013.01); H01H 83/10 (2013.01)
Citation (applicant)
- DE 102007015933 A1 20080717 - DEHN & SOEHNE [DE]
- DE 202007018507 U1 20080911 - DEHN & SOEHNE [DE]
- EP 2132752 A1 20091216 - KIWA SPOL S R O [SK]
- WO 2006120522 A1 20061116 - KIWA SPOL S R O [SK], et al
- IB 2010000528 W 20100312
- WO 2007017736 A1 20070215 - KIWA SPOL S R O [SK], et al
Citation (search report)
- [XY] DE 102005040432 A1 20070301 - RWTH AACHEN [DE]
- [YD] WO 2007017736 A1 20070215 - KIWA SPOL S R O [SK], et al
- [AD] DE 102007015933 A1 20080717 - DEHN & SOEHNE [DE]
- [X] US 3809959 A 19740507 - PUCHER W
- [X] DE 877335 C 19530521 - SIEMENS AG
- [X] JP 2004014241 A 20040115 - TOSHIBA CORP, et al
- [X] US 5606299 A 19970225 - INNES MARK E [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
EP 2393088 A1 20111207; EP 2393088 B1 20210428; CZ 2010440 A3 20111214; WO 2011151668 A1 20111208
DOCDB simple family (application)
EP 10164827 A 20100603; CZ 2010440 A 20100603; IB 2010001951 W 20100802