The nominal full load voltage and maximum voltage have been computed 以上已計(jì)算出額定滿負(fù)電壓和最大電壓。
The nominal full load voltage and maximum voltage have been computed 這樣就可以計(jì)算出滿負(fù)電壓值和最大電壓值。
Ti ? the maximum voltage developed across an input diode with test current applied 測(cè)試電流加到輸入二極管所產(chǎn)生的最大壓降。
Maximum voltage relay 過(guò)壓繼電器
Requirements for maximum voltage , current , and power levels in network - powered transport system 網(wǎng)絡(luò)電力傳輸系統(tǒng)的最大電壓電流和功率級(jí)的要求
This is the maximum voltage that can be applied safely to an output terminal , with respect to the ground of the device 這是能安全地作用于輸出端的、相對(duì)于器件地的最大電壓。
A conical insulator is designed , which is operated on the maximum voltage 750kv and pulse width 200ns 設(shè)計(jì)出工作于脈寬200ns脈沖電壓下的最高電壓750kv錐形絕緣子,并進(jìn)行了結(jié)構(gòu)優(yōu)化。
The conical insulator high 15 cm , the diameter of top is 5cm and that of the bottom is 35cm . the insulator is operated for more 300 times on voltage more 600kv , and maximum voltage is 750kv . the operated is stability and no surface flashover phenomenon is happened 錐形絕緣子高15cm ,錐底直徑35cm ,錐頂直徑5cm ,實(shí)驗(yàn)結(jié)果表明滿足設(shè)計(jì)要求,在600kv以上工作300多次,最高電壓達(dá)750kv ,運(yùn)行穩(wěn)定,未發(fā)生沿表面閃絡(luò)現(xiàn)象。
The asynchronous motor is widely used for its simple construction , ruggedness , high working reliability , relatively low cost , and high environmental adaptability . it is suit for the direction of high voltage , high speed and large capacity . vector control is its ideal speed modulation method . the harmonics of three - level inverter are less than the traditional two - level inverter ’ s , and it is convenient to realize high sinusoidal voltage output . the maximum voltage strength which each electric component bears is small , and it is easy for three - level inverter to realize large capacity . the research on the asynchronous motor vector control based on the three - level inverter is one novel work 異步電機(jī)結(jié)構(gòu)簡(jiǎn)單、堅(jiān)固耐用、運(yùn)行可靠、成本低、環(huán)境適應(yīng)性強(qiáng),容易向高壓高速和大容量方向發(fā)展,獲得了廣泛應(yīng)用,矢量控制為其理想的調(diào)速方法;三電平逆變器輸出端諧波少,有利于實(shí)現(xiàn)輸出電壓的正弦化,且單個(gè)開(kāi)關(guān)管承受的最大電壓小,適合向高壓大容量方向發(fā)展。對(duì)基于三電平逆變器的異步電機(jī)調(diào)速系統(tǒng)開(kāi)展矢量控制研究,是一件有意義的工作。