US 12,461,136 B2
Arrester system of parallel-connected arresters, and method for detecting faults of the arresters
Thomas Hilker, Stahnsdorf (DE); and Henrik Roggow, Berlin (DE)
Assigned to Siemens Energy Global GmbH & Co. KG, Munich (DE)
Appl. No. 18/245,193
Filed by Siemens Energy Global GmbH & Co. KG, Munich (DE)
PCT Filed Sep. 3, 2021, PCT No. PCT/EP2021/074403
§ 371(c)(1), (2) Date Mar. 14, 2023,
PCT Pub. No. WO2022/053409, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 10 2020 211 487.0 (DE), filed on Sep. 14, 2020.
Prior Publication US 2023/0358799 A1, Nov. 9, 2023
Int. Cl. G01R 31/12 (2020.01); G01R 31/52 (2020.01)
CPC G01R 31/1236 (2013.01) [G01R 31/52 (2020.01); G01R 31/1227 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An arrester system, comprising:
at least two arresters connected in parallel with one another;
each of said arresters having a sensor for determining a leakage current;
a monitoring system connected to said sensors and configured to detect a faulty arrester by comparing a temperature of each of said arresters measured simultaneously with all other said arresters.