Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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短時(shí)耐受電流試驗(yàn)設(shè)備及其容量的選擇

來源:電工電氣發(fā)布時(shí)間:2021-06-28 09:28 瀏覽次數(shù):647
短時(shí)耐受電流試驗(yàn)設(shè)備及其容量的選擇
 
向儒英,段麗萍,施文龍,張江文,丁正平
(西安孚信能源工程有限公司,陜西 西安 710001)
 
    摘 要 :介紹了開關(guān)電器短時(shí)耐受電流的試驗(yàn)電源系統(tǒng)及其主要設(shè)備,分析了試驗(yàn)設(shè)備容量的最佳選擇方法。針對(duì)不同試品阻抗及試驗(yàn)電流的要求,選用電網(wǎng)和短路發(fā)電機(jī)兩種供電方式的應(yīng)用實(shí)例,進(jìn)行試驗(yàn)設(shè)備的選擇和相應(yīng)試驗(yàn)電流的計(jì)算,其中對(duì)調(diào)壓變壓器不同擋位阻抗的變化和短路發(fā)電機(jī)強(qiáng)迫勵(lì)磁工作方式下的試驗(yàn)電流進(jìn)行了詳細(xì)計(jì)算,對(duì)以后的工程應(yīng)用具有參考價(jià)值。
    關(guān)鍵詞 :短時(shí)耐受電流 ;試驗(yàn)電源 ;設(shè)備容量選擇 ;強(qiáng)迫勵(lì)磁
    中圖分類號(hào) :TM56     文獻(xiàn)標(biāo)識(shí)碼 :A     文章編號(hào) :1007-3175(2021)06-0056-05
 
Selection of Short-Time Withstand Current Test Equipment and Its Capacity
 
XIANG Ru-ying, DUAN Li-ping, SHI Wen-long, ZHANG Jiang-wen, DING Zheng-ping
(China Xi’an Fosen Engineering Co., Ltd, Xi’an 710001, China)
 
    Abstract: The test power supply system and its main equipment for the short-term withstand current of the switching device are introduced. The best selection method of test equipment capacity is analyzed. According to the requirements of different test product impedance and test current, the application examples of two power supply modes of power grid and short-circuit generator are selected, and the selection of test equipment and the calculation of corresponding test current are carried out. Among them, the change of impedance in different gears of the voltage regulating transformer and the test current under the forced excitation mode of the short-circuit generator are calculated in detail, which has reference value for future engineering applications.
    Key words: short-time withstand current; test power supply; equipment capacity selection; force excitation
 
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