常見例句雙語例句Based on examples, the faults of the off-circuit tap-changer of transformers are analyzed and dis cussed. The preventive measures are presented.通過實例，對變壓器用無勵磁分接開關故障進行了分析討論，并提出了防范措施。The aim and scheme for optimum design of the off-circuit tap-changer the method to simplify structure and the way to improve reliability are expounded.闡明了無勵磁分接開關優(yōu)化設計的目標和方案、簡化結構的辦法及提高可靠性的途徑。This kind of material is already extensive now to be used for common mode choke of high frequency circuit changer, high frequency dc-to-ac converter, zero order mutual-inductor and etc.這種材料現已廣泛用于共模扼流圈、高頻開關電源、高頻逆變器、零序互感器等許多電器元件。 返回 circuit changer