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公开(公告)号:US20060039171A1
公开(公告)日:2006-02-23
申请号:US11183991
申请日:2005-07-19
IPC分类号: H02M3/335
CPC分类号: H01F29/04
摘要: The invention relates to an on-load transformer tap changing system wherein the secondary or primary of a transformer comprises at least one first and one second taps (p1, p2). A main connection circuit (tra-I2) is used for the permanent connection of the first tap (p1) or the second tap (p2) to an output terminal (b2) of the secondary or primary of the transformer. Secondary connection circuits (I1, I3) are each used to connect a tap (p1, p2) temporarily and directly to said output terminal (b2) of the secondary or primary of the transformer. Each of said connection circuits (I1, tra-I2, I3) comprises one or more insulated gate bipolar transistors and the system can be controlled without zero current value transition detection in the secondary winding. Application: Power transformers.
摘要翻译: 本发明涉及一种负载变压器分接变换系统,其中变压器的次级或初级管包括至少一个第一和第二抽头(p 1,p 2)。 主连接电路(tra-I 2)用于将第一抽头(p 1)或第二抽头(p 2)永久连接到变压器的次级或初级的输出端子(b 2)。 二次连接电路(I 1,I 3)分别用于将抽头(p 1,p 2)临时并直接连接到变压器的次级或初级的输出端子(b 2)。 所述连接电路(I 1,tra-I 2,I 3)中的每一个包括一个或多个绝缘栅极双极晶体管,并且可以在次级绕组中不进行零电流值转换检测来控制该系统。 应用:电力变压器。
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公开(公告)号:US07355369B2
公开(公告)日:2008-04-08
申请号:US11183991
申请日:2005-07-19
IPC分类号: G05F1/14
CPC分类号: H01F29/04
摘要: An on-load transformer tap changing system, for example for a power transformer, wherein the secondary or primary of a transformer includes at least one first tap and one second tap. A main connection circuit is used for permanent connection of the first tap or the second tap to an output terminal of the secondary or primary of the transformer. Secondary connection circuits are each used to connect a tap temporarily and directly to the output terminal of the secondary or primary of the transformer. Each of the connection circuits includes one or more insulated gate bipolar transistors. The system can be controlled without zero current value transition detection in the secondary winding.
摘要翻译: 一种负载变压器抽头变换系统,例如用于电力变压器,其中变压器的次级或初级管包括至少一个第一抽头和一个第二抽头。 主连接电路用于将第一抽头或第二抽头永久连接到变压器的次级或初级的输出端子。 二次连接电路分别用于临时和直接连接分接头的变压器次级或初级的输出端子。 每个连接电路包括一个或多个绝缘栅双极晶体管。 在次级绕组中可以控制系统的零电流值转换检测。
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