采用全自动间歇送进，封闭循环机构保证每件工件退火时间精确一致。
Adopted total Intermittently and automatically feed in, and sealed circle device can ensure each product the precise annealing time.
本型互感器为支柱式全封闭结构，采用环形铁芯并经退火处理，一、二次绕组及铁芯用环氧树脂浇注成型。
This type of transformer is fully enclosed structure, using annular iron core and the annealing treatment. The iron core, primary and secondary windings are casted with epoxy resin.
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