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變壓器原理是什么?

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變壓器原理是什么?

發布日期:2018-03-22 作者: 點擊:

變壓器是利用線圈互感特性構成的一種元器件,幾乎在所有的電子產品中都要用到。它原理簡單,但根據不同的使用場合(不同的用途),變壓器的繞制工藝會有所不同。變壓器的功能主要有:電壓變換;阻抗變換;隔離;穩壓(磁飽和變壓器)等。它是由一個初級線圈(線圈圈數n1)及一個次級線圈(線圈圈數n2)環繞著一個核心。常用的鐵心形狀一般有E型和C型。

變壓器(Transformer)是利用電磁感應的原理來改變交流電壓的裝置,主要構件是初級線圈、次級線圈和鐵心(磁芯)。在電器設備和無線電路中,常用作升降電壓、匹配阻抗,安全隔離等,變壓器原理與電源相連的線圈,接收交流電能,稱為一次繞組 與負載相連的線圈,送出交流電能,稱為二次繞組 一次繞組的二次繞組的 電壓相量U1 電壓相量U2   電流相量I1 電流相量I2 電動勢相量E1 電動勢相量E2 匝數N1 匝數N2 同時交鏈一次,二次繞組的磁通量的相量為φm ,該磁通量稱為主磁通。

變壓器的主要部件有:

(1)器身:包括鐵心、繞組、絕緣部件及引線。

(2)調壓裝置:即分接開關,分為無勵磁調壓和有載調壓

(3)油箱及冷卻裝置。

(4)保護裝置:包括儲油柜、安全氣道、吸濕器、氣體繼電器、凈油器和測溫裝置等。

(5)絕緣套管

電爐變壓器、整流變壓器、特種變壓器、干式變壓器昆山仕泰電源有限公司專業從事生產各類型的變壓器專業企業。公司全套引進國內外先進技術,具有設計開發能力和制造經驗,擁有先進的生產設備,高素質技術隊伍。


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相關標簽:變壓器

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