無(wú)刷自控電機(jī)軟起動(dòng)器是將起動(dòng)電阻直接安裝在電動(dòng)機(jī)的轉(zhuǎn)軸上，利用電機(jī)旋轉(zhuǎn)時(shí)產(chǎn)生的離心力作為動(dòng)力，控制起動(dòng)電阻的大小，達(dá)到減少電機(jī)起動(dòng)電流、增加起動(dòng)轉(zhuǎn)矩，使繞線式異步電動(dòng)機(jī)實(shí)現(xiàn)無(wú)刷自控運(yùn)行的裝置。它主要由機(jī)殼、起動(dòng)液、動(dòng)極板、彈簧、接線柱、安全閥、排氣閥等構(gòu)成。該起動(dòng)器具有起動(dòng)電流小，起動(dòng)轉(zhuǎn)矩大，自動(dòng)適應(yīng)電源及負(fù)載的變化，保護(hù)電機(jī)等特點(diǎn)。廣泛應(yīng)用于冶金、機(jī)械、石油、化工、礦山、建材、造紙、橡膠、水廠、電站等所有工業(yè)領(lǐng)域的球磨機(jī)、破碎機(jī)、風(fēng)機(jī)、水泵、打漿機(jī)、空壓機(jī)、軋機(jī)、熱磨機(jī)、制氧機(jī)等電機(jī)傳動(dòng)設(shè)備中繞線式異步電動(dòng)機(jī)的起動(dòng)。它可以代替繞線電機(jī)的滑環(huán)、碳刷及其起動(dòng)裝置。
SUMMARIZE
It is to install the starting resistance on rolling shaft of motor.using the centrifugal power as driving, control the starting resistance to reduce the starting current, increase torque, equipping the no brush self -controlled motor to winding asynchronous motor. it is composed of shell、starting liquid、moving magnetic boad、spring、connecting pillar、safety valve、exhausting valve etc. the starter has the advantage at small current ，large starting torque,adjustable the change to power and load so as to，protecting the motor. it can be widely used to start the winding asynchronous motor in ball miller、crusheruser 、blower fan、pump、beater、comprssor、crusher、defibrater、oxygenerator etc of metallization，chemical-industry、machinary、petroleum、mining、constrction、rubber、power station etc. it can stead of the collector ring，carbon brush of winding motor.
產(chǎn)品優(yōu)點(diǎn)
起動(dòng)器采用無(wú)刷無(wú)環(huán)運(yùn)行，操作簡(jiǎn)單，安裝拆卸方便，可大大減少維修費(fèi)用，并可根據(jù)機(jī)械負(fù)載的特性，自動(dòng)改變起動(dòng)電阻的大小，調(diào)節(jié)起動(dòng)轉(zhuǎn)矩和起動(dòng)電流，使電動(dòng)機(jī)處于最佳狀態(tài)
能在保持電機(jī)起動(dòng)轉(zhuǎn)矩不變的情況下，使起動(dòng)電流從7Ie降到1.6Ie，并能以最大轉(zhuǎn)矩起動(dòng)電機(jī)。它由電阻起動(dòng)裝置發(fā)展而來(lái)，具有如下創(chuàng)新點(diǎn)：
1、徹底根除使用滑環(huán)、碳刷時(shí)所造成的各種危害。去掉傳統(tǒng)、復(fù)雜的起動(dòng)裝置，操作方便，并可減少維修費(fèi)用。
2、節(jié)省安裝空間和二次回路電纜，減少起動(dòng)裝置的功率消耗，節(jié)約了電能。
3、起動(dòng)控制由起動(dòng)器根據(jù)電機(jī)的轉(zhuǎn)速自動(dòng)完成，徹底避免了其它起動(dòng)裝置不能根據(jù)負(fù)載的大小，自動(dòng)跟蹤電機(jī)起動(dòng)過(guò)程而造成電機(jī)或起動(dòng)器損壞等不良現(xiàn)象。
4、電機(jī)運(yùn)轉(zhuǎn)過(guò)程中，如出現(xiàn)堵轉(zhuǎn)現(xiàn)象，隨著電機(jī)轉(zhuǎn)速的降低，起動(dòng)器會(huì)自動(dòng)投入運(yùn)行，達(dá)到增加電機(jī)轉(zhuǎn)矩，減少起動(dòng)電流的目的。
5、克服了定子控制式電機(jī)軟起動(dòng)器的起動(dòng)轉(zhuǎn)矩與起動(dòng)電流的平方成正比這一缺陷，在降低電機(jī)起動(dòng)電流的同時(shí)，增加電機(jī)起動(dòng)轉(zhuǎn)矩，并能以最大轉(zhuǎn)矩起動(dòng)電機(jī)，采用無(wú)刷運(yùn)行，去掉了傳統(tǒng)、 繁瑣、多觸點(diǎn)元件組成的起動(dòng)裝置，其起動(dòng)裝置的功率損耗及電機(jī)的起動(dòng)時(shí)間比定子控制式電機(jī)軟起動(dòng)器減少10倍以上，但起動(dòng)器的綜合價(jià)格不及其它軟起動(dòng)器的1/3。
6、起動(dòng)電阻直接安裝在電動(dòng)機(jī)的轉(zhuǎn)軸上，利用電機(jī)旋轉(zhuǎn)時(shí)產(chǎn)生離心力作為動(dòng)力，控制電阻的大小，達(dá)到減少電機(jī)起動(dòng)電流、增加起動(dòng)轉(zhuǎn)矩，實(shí)現(xiàn)無(wú)刷自控運(yùn)行的目的。
7、采用防銹、防變質(zhì)、防凍(冰點(diǎn)心-25℃)、防沸(沸點(diǎn)為120 ℃)的四防起動(dòng)液，提高起動(dòng)器的使用壽命。
8、設(shè)置安全排氣閥，在電機(jī)轉(zhuǎn)速達(dá)到額定轉(zhuǎn)速后，自動(dòng)打開(kāi)排氣閥，保證起動(dòng)器的安全可靠運(yùn)行。
ADVANTAGE OF PRODUCTION
The start is easy to operate and install, which can reduce the expense of repire. it can take the motor to the best situation under adjusting the resistance 、torque and current.
The starting current can be reduced from 7le to 1.6le under the condition of keeping the torque unchanged.it can start the motor with largest torque:
1、It is from resistance starting equiment, which has below new characteristics:removing the harm from ring and carbon brush.it saves repairing expense without traditional complex starting equipment.
2、Saving the installation space and secondary loop cable,reducing the power waste of starting equipment, power wasteless.starting control is completed from starter according to the speed of motor.
3、It avoids the phenomena that some damage to motor and starter from other equipment can not trace the starting process of motor by overload.
4、During the process of running, if it appears locked-rotor, the starter will automatically run for the reduction of motor speed to reach the goal of increasing the torque and reducing current of motor.
5、Conquering the default that square of starting current is proportional to torque on stator controlled motor soft-starter with starting current. increasing the motor torque when reducing the current. adopting brushless running, it is 10 times to save the power and starting times.however, the price is not reached 1/3 than other soft-starter.
6、The starting resistance is directly installed the rotoring shaft of motor, using the centrifugal power as driving, control the starting resistance to reduce the starting current, increase torque、 equipping the no brush self -controlled motor to winding asynchronous motor.
7、In order to prolong the using life, adopting the starting liquid to resisting rust、deteroprate、 freeze、boiling(boiling point is120℃).
8、To guarantee running safety, it needs to set the safey exhausting valve, which will be opened automatically when reaching the rated speed.
