中壓電力系統(tǒng)電力變壓器連接組別差異化共用的技術(shù)可行性研究

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[摘 要]天津某35 kV變電站在設(shè)備安裝過(guò)程中，發(fā)現(xiàn)兩臺(tái)主變除聯(lián)接組別不同外，其它參數(shù)均符合訂貨要求，聯(lián)接組別分別為D，yn11和YN，d11?？紤]到變壓器重新制造需增加成本、延長(zhǎng)工期，對(duì)上述差異化在中壓系統(tǒng)共用可行性問(wèn)題的探討和研究就顯得十分必要。

[關(guān)鍵詞]中壓電力系統(tǒng)；電力變壓器；聯(lián)接組別；差異化；共網(wǎng)運(yùn)行

[中圖分類號(hào)]TM41 [文獻(xiàn)標(biāo)志碼]A [文章編號(hào)]1001–523X（2022）07–0078–03

Technical Feasibility Study on Differential Sharing of Connection Groups of Power Transformers in Medium Voltage Power Systems

Zhang Liang

[Abstract]During the equipment installation process of a 35 kV substation in Tianjin， it was found that the parameters of the two main transformers were all in line with the ordering requirements except for the connection groups. The connection groups were D，yn11 and YN，d11. Considering that the remanufacturing of the transformer needs to increase the cost and prolong the construction period， it is very necessary to discuss and study the feasibility of the above-mentioned differentiation in the sharing of the medium voltage system.

[Keywords]medium voltage power system； power transformer； connection group； differentiation； common network operation

1 概述

聯(lián)接組別是表征變壓器一、二次繞組首末端以及繞組之間電氣連接方式的重要參數(shù)，反映了變壓器一、二次繞組間的相位以及電量變換關(guān)系等。（剩余4161字）