The utility model relates to a Vv connection traction transformer with a two - phase three column body structure. A three column iron core is used to set up a group of high voltage coils and low voltage coils on the A and C columns, and the B column is not coils; the A and C two columns have each non excitation connection switch, and the coil from the iron core is arranged outside the core. The head end of the low voltage coil of A and C column is connected to the low voltage sleeve directly through the lead wire, and the head end of the high voltage coil of the A and C column is connected directly through the lead wire and connected directly to the high pressure casing. The end of the high voltage coil is connected with the connecting switch of the column by the lead wire and connected through the switch internal connection. After that, the two column outlet line is connected to the B column high voltage bushing in parallel, and the voltage regulating coil leads the tap out switch to the switch. The utility model reduces the copper amount used in the coil, the structure is more compact and the site area is small. On the basis of guaranteeing the performance of the product, the cost of the product is reduced and the benefit of the manufacturing enterprise is improved.
【技术实现步骤摘要】
一种两相三柱器身结构的Vv接线牵引变压器
本技术涉及变压器制造
,具体的说是一种两相三柱器身结构的Vv接线牵引变压器。
技术介绍
牵引变压器是将三相电力系统的电能传输给两个各自带负载的单相牵引线路,分别给上下行机车供电,牵引变压器就是用作三相变两相的变压器。目前,国内常规的Vv接线牵引变压器通常由两台容量相同或容量不同的单相变压器组成,或者将两个单独的单相变压器器身放在一个共用的油箱中组成。每个器身都采用单相双柱铁芯结构,且每个铁芯柱上均套装线圈(即两个器身共需要4个高压线圈、4个低压线圈、4个调压线圈)。对于这种结构的牵引变压器,需先在内部将每个器身的线圈进行串并联引线连接,引出出头相对较多,引出出头占用空间较大。该结构的Vv接线牵引变压器体积较大,用铜量多,变压器重量大,导致变压器成本高,变压器现场安装所需的占地面积大。
技术实现思路
针对现有技术中Vv接线牵引变压器体积较大、变压器成本高以及现场占地面积大等不足,本技术要解决的问题是提供一种体积小、节能降耗、占地面积小的两相三柱器身结构的Vv接线牵引变压器。为解决上述技术问题,本技术采用的技术方案是:本技术一种两相三柱器身结构的Vv接线牵引变压器,采用一个三柱铁芯,在A、C柱上分别设置一组高压线圈和低压线圈,B柱上不套线圈;A、C两柱各设一个无励磁分接开关,线圈从铁芯往外排列方式为:铁芯-低压线圈-高压线圈-调压线圈。A、C柱低压线圈的首末端出头通过引线连接,分别直接引出接入低压套管,A、C柱高压线圈首端出头通过引线连接,直接接入高压套管,高压线圈末端通过引线与本柱的分接开关相连接,经开关内部连接后,两 ...
【技术保护点】
一种两相三柱器身结构的Vv接线牵引变压器,其特征在于:采用一个三柱铁芯,在A、C柱上分别设置一组高压线圈和低压线圈,B柱上不套线圈;A、C两柱各设一个无励磁分接开关,线圈从铁芯往外排列方式为:铁芯‑低压线圈‑高压线圈‑调压线圈。
【技术特征摘要】
1.一种两相三柱器身结构的Vv接线牵引变压器,其特征在于:采用一个三柱铁芯,在A、C柱上分别设置一组高压线圈和低压线圈,B柱上不套线圈;A、C两柱各设一个无励磁分接开关,线圈从铁芯往外排列方式为:铁芯-低压线圈-高压线圈-调压线圈。2.按权利要求1所述的两相三柱器身结构的Vv接线牵引变压器,其特征在于:A、C柱低压线圈的首末端出头通过引线连接,分别直接引出接入低压套管,A...
【专利技术属性】
技术研发人员:李静,孙洪军,王丽丹,曲维,赵丹,方海彬,戴丽莉,朱可晴,
申请(专利权)人:特变电工沈阳变压器集团有限公司,
类型:新型
国别省市:辽宁,21
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