正確操作振動盤很關鍵

　隨(sui)著科(ke)技的(de)(de)發展，無論(lun)哪個方(fang)面都在不(bu)(bu)斷的(de)(de)完善。在工業(ye)企(qi)(qi)業(ye)內部，除白熾燈(deng)、電(dian)(dian)阻電(dian)(dian)熱器(qi)等(deng)設備(bei)負載的(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數接近于1，為(wei)數不(bu)(bu)多的(de)(de)同步電(dian)(dian)動(dong)機可發出(chu)一(yi)部分無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)外，大(da)多數電(dian)(dian)氣設備(bei)都是(shi)根據電(dian)(dian)磁感應原(yuan)理工作的(de)(de)，所(suo)以(yi)需(xu)要(yao)(yao)大(da)量的(de)(de)無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)。如三相(xiang)交流振(zhen)動(dong)盤(pan)、變壓器(qi)、電(dian)(dian)焊機、電(dian)(dian)抗器(qi)、架空線(xian)等(deng)的(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數均小于1，特別是(shi)在輕載運(yun)行(xing)(xing)的(de)(de)情況下(xia)，其(qi)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數就更低了。工業(ye)企(qi)(qi)業(ye)所(suo)需(xu)用(yong)(yong)的(de)(de)無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)中，振(zhen)動(dong)約占(zhan)70%左右，運(yun)行(xing)(xing)中的(de)(de)廣東振(zhen)動(dong)盤(pan)負載率(lv)(lv)(lv)一(yi)般都在60%以(yi)下(xia)。而振(zhen)動(dong)盤(pan)的(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數和效率(lv)(lv)(lv)在70%至滿載運(yun)行(xing)(xing)時較(jiao)高的(de)(de)。東莞(guan)(guan)振(zhen)動(dong)盤(pan)使(shi)用(yong)(yong)量過多且(qie)負載率(lv)(lv)(lv)不(bu)(bu)高等(deng)是(shi)影響企(qi)(qi)業(ye)自(zi)然(ran)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數偏低的(de)(de)重(zhong)要(yao)(yao)原(yuan)因(yin)。合理使(shi)用(yong)(yong)東莞(guan)(guan)振(zhen)動(dong)盤(pan)成(cheng)為(wei)改善企(qi)(qi)業(ye)自(zi)然(ran)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數的(de)(de)重(zhong)要(yao)(yao)環(huan)節(jie)。

1、改(gai)善振(zhen)動(dong)設備的(de)(de)運行(xing)(xing)(xing)狀況。對(dui)于振(zhen)動(dong)盤，要(yao)盡(jin)量(liang)避免(mian)振(zhen)動(dong)盤的(de)(de)空(kong)載(zai)運行(xing)(xing)(xing)，必要(yao)時可安裝空(kong)載(zai)自動(dong)斷電(dian)(dian)裝置。電(dian)(dian)焊車(che)(che)間(jian)內使(shi)(shi)用(yong)電(dian)(dian)焊機(ji)(ji)量(liang)很大，因(yin)此電(dian)(dian)焊機(ji)(ji)的(de)(de)合理使(shi)(shi)用(yong)對(dui)于改(gai)善功(gong)率因(yin)數(shu)起(qi)著很大的(de)(de)作用(yong)，其車(che)(che)間(jian)內使(shi)(shi)用(yong)的(de)(de)振(zhen)動(dong)設備應有著明(ming)確(que)的(de)(de)規定，即人走機(ji)(ji)停，避免(mian)機(ji)(ji)器的(de)(de)空(kong)載(zai)運行(xing)(xing)(xing)。

2、提高塘廈(sha)振(zhen)(zhen)動盤的(de)(de)檢(jian)修質量(liang)。振(zhen)(zhen)動盤檢(jian)修質量(liang)的(de)(de)好壞對(dui)于企業(ye)的(de)(de)功(gong)率因數影響很大。在修理振(zhen)(zhen)動盤時(shi)，應(ying)準確按(an)照(zhao)振(zhen)(zhen)動盤的(de)(de)各項額(e)定數據進行，若檢(jian)修后每(mei)相匝數比(bi)原(yuan)載匝數減(jian)少，空氣隙加大等，都將使無功(gong)功(gong)率需要(yao)量(liang)增(zeng)加，從而使功(gong)率因數變壞。

3、改(gai)變供(gong)電(dian)電(dian)壓。對于中小型振(zhen)(zhen)動盤(pan)，當負載率小于50%以下(xia)時，常采用改(gai)變振(zhen)(zhen)動盤(pan)定(ding)(ding)子繞組(zu)接(jie)線(xian)方(fang)式來(lai)降低其(qi)運(yun)行電(dian)壓。即將定(ding)(ding)子繞組(zu)三(san)角形聯結改(gai)為星形聯結，從而減(jian)少深圳振(zhen)(zhen)動盤(pan)無功(gong)功(gong)率的(de)需要量，提高振(zhen)(zhen)動盤(pan)的(de)功(gong)率因數，達到節約電(dian)能的(de)目的(de)。

4、鳳崗振動(dong)盤(pan)的(de)(de)同步化運行。對(dui)于(yu)負載率(lv)不大(da)于(yu)0.7的(de)(de)繞線轉(zhuan)(zhuan)子振動(dong)盤(pan)，必要時可使其同步化運行，即當繞線轉(zhuan)(zhuan)子振動(dong)盤(pan)起動(dong)完畢(bi)后，向轉(zhuan)(zhuan)子三(san)相繞組中(zhong)送入直流勵磁，產生轉(zhuan)(zhuan)矩(ju)，把振動(dong)盤(pan)牽入同步運行，其運行狀態與同步電動(dong)機(ji)相似，從(cong)而(er)改善了(le)功率(lv)因數。