兩路電源供電的三繞組變壓器的設(shè)計(jì) 

陳伯根 
福州天宇電氣股份有限公司，福建 福州 350012 
 

摘 要：給出了兩路電源供電的梯級(jí)小水電站變壓器的兩種設(shè)計(jì)方案，分析了采用三繞組變壓器作為主變的優(yōu)點(diǎn)。對(duì)三繞組變壓器的額定容量、電壓比、聯(lián)結(jié)組別、阻抗電壓等關(guān)鍵參數(shù)的選取進(jìn)行了介紹，并對(duì)三繞組變壓器的結(jié)構(gòu)和外部平面布置進(jìn)行了改進(jìn)。經(jīng)實(shí)例驗(yàn)證，采用改進(jìn)后的三繞組變壓器的設(shè)計(jì)方案簡(jiǎn)化了水電站的整體布置，經(jīng)濟(jì)性和節(jié)能效果良好。
關(guān)鍵詞：兩路電源供電；三繞組變壓器；結(jié)構(gòu)設(shè)計(jì)
中圖分類(lèi)號(hào)：TM402 文獻(xiàn)標(biāo)識(shí)碼：B 文章編號(hào)：1007-3175(2013)10-0027-04

Design of Duplicate Power Supply Three-Winding Transformer 

CHEN Bo-gen 
Fuzhou Tianyu Electric Co., Ltd, Fuzhou 350012, China 
 

Abstract: Two kinds of design plans were given for cascade small hydropower station’s transformer of duplicate power supply. Analysis was made to the advantages of adopting three-winding transformer as main transformer. Introduction was made to the selection of rated capacity, voltage ratio, vector group, impedance voltage etc key parameters for three-winding transformer, and improvement was made to structure and external plane layout of three-winding transformer. After verification of actual examples, the design plan adopting improved three-winding transformer has simplified hydropower station’s integrated layout, and economy and energy saving effect are fine.
      Key words: duplicate power supply; three-winding transformer; structure design