US 11,881,704 B2
Devices for active overvoltage protection including varistors and thyristors
Grigoris Kostakis, Athens (GR); Zafiris G. Politis, Athens (GR); Fotis Xepapas, Drama (GR); Alexis Chorozoglou, Drama (GR); and Christos Prevezianos, Drama (GR)
Assigned to RIPD RESEARCH AND IP DEVELOPMENT LTD., Nicosia (CY)
Filed by RIPD RESEARCH AND IP DEVELOPMENT LTD., Nicosia (CY)
Filed on May 27, 2022, as Appl. No. 17/826,560.
Application 17/826,560 is a continuation of application No. 16/577,177, filed on Sep. 20, 2019, granted, now 11,374,396.
Application 16/577,177 is a continuation of application No. 15/389,870, filed on Dec. 23, 2016, granted, now 10,447,026, issued on Oct. 15, 2019.
Prior Publication US 2022/0399714 A1, Dec. 15, 2022
Int. Cl. H02H 3/22 (2006.01); H02H 9/04 (2006.01); H02H 9/00 (2006.01); H01C 7/12 (2006.01)
CPC H02H 3/22 (2013.01) [H01C 7/12 (2013.01); H02H 9/008 (2013.01); H02H 9/041 (2013.01); H02H 9/043 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An active energy absorber module comprising:
first and second lines, the first and second lines comprising first and second power lines in a single phase power system or first and second phase lines in a multiple phase power system;
first and second thyristors comprising a thyristor circuit and electrically connected between the first and second lines;
a first varistor electrically connected to at least one of the first and second thyristors between the first and second lines; and
a second varistor electrically connected in series to the first varistor between the first and second lines; and
an inductor electrically connected between a first node of the thyristor circuit and a second node corresponding to a junction of the first varistor and the second varistor.