Tag Archives | Expulsion Type Lightning Arrester

Expulsion type lightning arrester is also known as a protector tube. It consists of –  (i) a tube made of fibre which is very effective gas-evolving material (ii) an isolating spark gap (or external series gap) and (iii) an interrupting spark gap inside the fibre tube. During operation arc due to the impulse spark-over inside the fibrous tube causes some [...]