核電廠中壓電氣貫穿件短路電動(dòng)力試驗(yàn)探討
 

鄭開云
（上海發(fā)電設(shè)備成套設(shè)計(jì)研究院，上海 200240）
 

    摘 要：核電廠中壓電氣貫穿件為安全殼內(nèi)反應(yīng)堆冷卻劑泵電機(jī)提供三相交流電源，設(shè)備設(shè)計(jì)和鑒定中應(yīng)考慮可能發(fā)生的單相、兩相和三相短路故障。根據(jù)中壓電氣貫穿件的結(jié)構(gòu)特點(diǎn)和相關(guān)鑒定標(biāo)準(zhǔn)，對比分析了中壓電氣貫穿件可能發(fā)生的兩相和三相短路的電動(dòng)力，并探討了短路電動(dòng)力試驗(yàn)方法。分析結(jié)果表明：中壓電氣貫穿件發(fā)生三相短路的電動(dòng)力較大，中壓電氣貫穿件應(yīng)進(jìn)行三相短路試驗(yàn)；短路試驗(yàn)電路的X /R 值和合閘相角對于短路電動(dòng)力都有影響；在進(jìn)行短路試驗(yàn)時(shí)應(yīng)調(diào)整試驗(yàn)電路參數(shù)，確保至少其中某一相導(dǎo)體的短路電流達(dá)到最大短路電流峰值，從而使電動(dòng)力達(dá)到預(yù)期目標(biāo)值。
    關(guān)鍵詞：核電廠；中壓電氣貫穿件；電動(dòng)力；短路試驗(yàn)
    中圖分類號：TM623          文獻(xiàn)標(biāo)識(shí)碼：A         文章編號：1007-3175(2017)06-0051-04
 

Discussion on Short-Circuit Electromotive Force Testing of Medium-Voltage
Electric Penetration Assembly in Nuclear Power Plant

 

ZHENG Kai-yun
（Shanghai Power Equipment Research Institute, Shanghai 200240, China）
 

    Abstract: The medium-voltage electric penetration assembly in nuclear power plant provides three-phase AC power source for the reactor coolant pump dynamo inside the containment. In the design and appraisal of equipment, consideration should be made for the possible happened one-phase, two-phase and three-phase short-circuit faults. According to the structure feature of medium-voltage electric penetration assembly and the related appraisal standard, this paper compared and analyzed the two-phase and three-phase short-circuit electromotive forces possibly happened in medium-voltage electric penetration assembly and probed the testing method. The analysis result shows that the electromotive forces of three-phase short-circuit are larger in medium-voltage electric penetration assembly. The medium-voltage electric penetration assembly should be subjected to three-phase short-circuit test. The X/R value of short-circuit testing circuit and the closing phase angle have effects on the short-circuit electromotive force. The testing circuit parameters should be adjusted before short-circuit testing, so as to make sure that at least one phase reaches the peek short-circuit current and then the electromotive forces reach the expected target value.
    Key words: nuclear power plant; medium-voltage electric penetration assembly; electromotive force; short-circuit testing
 

參考文獻(xiàn)
[1] IEEE Std 317-2013 IEEE Standard for Electric Penetration Assembliesin Containment Structures for Nuclear Power Generating Stations[S].
[2] IEEE Std C37.09-1999 IEEE Standard Test Procedure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis[S].