L Soft Starts, starts current is less than rated current; traditional Y-△ starts is 3～5 times rated current, waste energy.

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See "e-paper" on page 1986, a concept of "Open-phase Motor Protection Discussion Summary," International Electrotechnical Commission to IEC202-1 low-voltage motor starter ② set out by the two-phase motor rated current up to 1,15 times rated current , while the third phase by 0.9 times the rated current to 0, the starter should be in action within 2h.

見(jiàn)《電子報(bào)》1986年1觀頁(yè)《電動(dòng)機(jī)斷相保護(hù)討論小結(jié)》入國(guó)際電工委員會(huì)IEC202－1低壓電動(dòng)機(jī)起動(dòng)器）中規(guī)定之②在電動(dòng)機(jī)兩相由額定電流升至1日本黄色免费网站在线观看、15倍額定電流国精品无码一区二区三区免费视频，而第三相由0.9倍額定電流降至0時(shí)，起動(dòng)器應(yīng)在2h內(nèi)動(dòng)作久久久国产精免费视频。

This series of residual current circuit breaker is the residual current—operated electronic circuit breaker,composed of zero—sequence current transformer,electronic control leakage release and DZ20 type circuit breaker with overload and shod—circuit protection.

本系列斷路器電流動(dòng)作型電子式漏電斷路器欧美另类A片在线播放，主要由零序電流互感器、電子控制漏電脫扣器及帶有過(guò)載和短路保護(hù)的DZ20型斷路器組成欧美射射色。

In the case of short - circuit,the output current amplitude and phase of PWM converter are controlled to adjust the equivalent impedance of current - limiter for fault current suppression.

故障發(fā)生后免费在线网站你懂得，通過(guò)變流器控制變壓器二次側(cè)注入電流的相位和幅值多色视频成在线观看，進(jìn)而調(diào)節(jié)限流器的等效阻抗，從而實(shí)現(xiàn)抑制短路電流的目的亚洲激情偷拍。

A fter analyzed the quick-current reflowing and the slow-current reflowing control methods, the author brings forward a mew method named mixed-current reflowing control.

在分析快續(xù)流和慢續(xù)流控制方式的基礎(chǔ)上涩涩涩亚洲日韩一区二区，提出了一種混合續(xù)流的新控制方法。

Based on Combination of the MMF equation and the branch current equation, an expanded equation about the winding currents and current-limiting reactances is obtained. According to the feature that the control windings are short-circuited in turn, the current-limiting reactances are calculated for each control winding step by step.

把磁勢(shì)平衡方程和支路電流方程相結(jié)合91福利在线精品国产，推導(dǎo)并得到了關(guān)于繞組電流和限流電抗的增廣方程女子裸体网站，再根據(jù)控制繞組順次短路工作的特點(diǎn)，提出了CRT的各級(jí)限流電抗值的一種遞推算法在线国产观看。

In the recent years,supported by National Natural Science Foundation of China,the faculty in Zhejiang University have begun the research of solid states power switch and fault current limiting technology. They provide a novel solid states fault current limiting technology,which possesses flexible control mode. It is feasible to develop a well-performed fault current limiter.

近年來(lái)狠狠亚洲超碰狼人久久老人，浙江大學(xué)有關(guān)人員在國(guó)家自然科學(xué)基金的支持下，開(kāi)展&固態(tài)功率開(kāi)關(guān)及短路限流技術(shù)的研究&免费黄色在线网站视频，提出了一種全新的固態(tài)短路限流技術(shù)亚洲综合一区二区三区无码，具有許多靈活的控制方式，完全有條件開(kāi)發(fā)成一種性能優(yōu)良的短路限流裝置影音先锋zyz。

L Intelligent three-phase charge mode: We adopt constant current technology at the beginning of charge, which can made current invariable and avoid battery broken or accelerating battery aging. It can convert to constant- voltage and current-limiting charge when charge voltage achieves upper limit voltage, which can improve effectively the capacity conversion efficiency of battery. Trickle and floating charge make each single cell battery constant receive electricity and ensure battery capacity can be recall most, which solved the unbalanced phenomenon of single cell battery and avoid the danger of voltage change and the end of battery charge, extend battery life.

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Allowable current density is firstly confirmed by analyzing the variation of current efficiency with current density. Effects of content of ammonia ions, pH value and the content of sodium formate upon the throwing power, covering power and ability of anti-impurities, were measured.

首先通過(guò)分析電流效率隨電流密度的變化情況確定了鍍液的許用電流密度九一人人操人人摸，然后測(cè)定了氨的含量最新国产在线走光视频、鍍液pH值、甲酸鈉的含量等因素對(duì)分散能力中文字幕精品一区二区日本、深鍍能力A级片网站多少、抗雜性能等鍍液性能的影響。

And base on topological structure of SVG for three-phase three-wire system, it puts forward a control method of compensation current which is based on forecasting current strategy to improve the tracking accuracy of dictation current.

同時(shí)女优网址，在三相三線制電壓型靜止無(wú)功發(fā)生器拓?fù)浣Y(jié)構(gòu)的基礎(chǔ)上日韩国产一区，論證了兩種直接電流控制方法：滯環(huán)控制和三角波控制。