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《國家電網(wǎng)公司2011年新建變電站設(shè)計(jì)補(bǔ)充規(guī)定》要求，變電設(shè)備狀態(tài)監(jiān)測系統(tǒng)宜采用分層分布式結(jié)構(gòu)，由（）、狀態(tài)監(jiān)測IED、后臺(tái)系統(tǒng)構(gòu)成。

答案：傳感器

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