COMPARATIVE STUDIES ON DEGRADATION OF VARISTORS SUBJECTED TO OPERATION IN SURGE ARRESTERS AND SURGE ARRESTER COUNTERS

The paper presents results of investigation of microstructure and micro-hardness for material of ZnO varistors applied to 110 kV surge arrester and surge arrester counter.The research combined two pairs of varistors, each consisted of one varistor subjected before to operation, while the other one was brand new unit and constituted a reference.All

Rheumatoid arthritis (RA) is a severe, chronic autoimmune disease affecting approximately 1% of the global population.Research has demonstrated that microorganisms play a crucial role in the onset Self Tanning and progression of RA.This indicates that the disruption of immune homeostasis may originate from mucosal sites, such as the gut and oral ca