ES 25

Electrical inductors; Low pass inductor filter used in high power electrical applications; Electric voltage transformers; Induction voltage regulators; Medium voltage power distribution and protection component system composed of breakers and switchgears; Static voltage regulators; Voltage monitor modules; Voltage regulators for electric power; Voltage stabilizers; Voltage surge protectors; Voltage surge suppressors; Electronic current wave rectifiers; Electronic voltage optimizers; Electronic instrument for determining circuit parameter measurements