free swell 中文意思是什麼
free swell
解釋
自由膨脹率-
The corrugated tank made of high quality cold - rolled - steel sheet manufactured with special production line. it can swell up or shrink compensating the oil from atmosphere. protect and delay the oil and the insulation against degradation, therefore enhance the operation reliability and free of maintenance under normal conditions
全密封變壓器與普通油浸式變壓器相比，取消了儲油櫃，由波紋油箱的波翅代替油管作為冷卻散熱元件，波紋油箱由優質冷軋薄鋼板在專用生產線上製造，波翅可以隨變壓器油體積的脹縮而脹縮，從而使變壓器內部與大氣隔絕，防止和減緩油層的劣化和絕緣受潮，增強運行可靠性，正常運行免維護。
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