| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a current transformer from being in contact with a high- temperature insulating gas when a circuit breaker is tripped off. SOLUTION: Three current transformers 3 are housed in a metal containers comprising an outer cylinder 23, an inner cylinder 24 and a lower lid 25; gaps between the current informers 3 and the metal container are filled up with epoxy resin 28 for hardening; and the top is covered with an upper lid 26; and a slit 29 is formed between the outer periphery of the upper lid 26 and the outer cylinder 23.</p> |
