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一、概(gai)述(shu)

SLRQ液(ye)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)起(qi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)器(qi)是(shi)為了進一(yi)步改善大(da)、中型(xing)繞線(xian)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)起(qi)動(dong)(dong)性(xing)能而(er)(er)研(yan)制(zhi)(zhi)(zhi)完(wan)成的(de)(de)(de)(de)(de)新一(yi)代起(qi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)裝置。克服了頻敏變阻(zu)(zu)器(qi)、油浸變阻(zu)(zu)器(qi)及(ji)鑄(zhu)鐵變阻(zu)(zu)器(qi)等(deng)(deng)老(lao)式起(qi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)設(she)(she)備(bei)(bei)沖擊電(dian)(dian)(dian)(dian)流(liu)大(da)(一(yi)般約為額定(ding)電(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)(de)3～5倍)，起(qi)動(dong)(dong)不(bu)美好(hao)等(deng)(deng)不(bu)足。它(ta)是(shi)通過(guo)在(zai)被(bei)控(kong)(kong)大(da)、中型(xing)繞線(xian)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)轉子回路中串入(ru)一(yi)液(ye)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)，且此電(dian)(dian)(dian)(dian)阻(zu)(zu)是(shi)在(zai)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)起(qi)動(dong)(dong)時(shi)自(zi)動(dong)(dong)投入(ru)并在(zai)預定(ding)的(de)(de)(de)(de)(de)時(shi)間內自(zi)動(dong)(dong)、無(wu)級、連續(xu)切除，從而(er)(er)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)在(zai)美好(hao)的(de)(de)(de)(de)(de)起(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)流(liu)條件下平穩起(qi)動(dong)(dong)。電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)均勻升(sheng)速，這(zhe)對保護電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)、用電(dian)(dian)(dian)(dian)設(she)(she)備(bei)(bei)、電(dian)(dian)(dian)(dian)網及(ji)節電(dian)(dian)(dian)(dian)等(deng)(deng)方面有(you)顯著效果。加上系統起(qi)動(dong)(dong)、停止、、故障(zhang)保護、聯絡、報警、顯示等(deng)(deng)方面進行精心設(she)(she)計，從而(er)(er)使液(ye)體(ti)變阻(zu)(zu)器(qi)與(yu)其(qi)它(ta)老(lao)式起(qi)動(dong)(dong)器(qi)相比較(jiao)，具(ju)有(you)自(zi)動(dong)(dong)化(hua)程(cheng)度(du)高(gao)、起(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)流(liu)小(一(yi)般小于額定(ding)電(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)(de)1.3倍)，電(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)壓(ya)低(di)亦(yi)能順利起(qi)動(dong)(dong)，很大(da)地降低(di)了變壓(ya)器(qi)的(de)(de)(de)(de)(de)容(rong)量，是(shi)目前球磨機(ji)(ji)(ji)(ji)、提升(sheng)機(ji)(ji)(ji)(ji)、破碎機(ji)(ji)(ji)(ji)、壓(ya)縮機(ji)(ji)(ji)(ji)、風機(ji)(ji)(ji)(ji)、水泵(beng)等(deng)(deng)重(zhong)負載的(de)(de)(de)(de)(de)起(qi)動(dong)(dong)控(kong)(kong)制(zhi)(zhi)(zhi)設(she)(she)備(bei)(bei)。

SLRQ系列液體電阻起動器,襄陽液體電阻起動器,襄陽液體電阻起動器安裝可廣泛用于水泥、化工、鋼鐵、冶金、礦山等行業90—6000KW繞線式異步電動機。

二、工作原理

SLRQ系列(lie)液體(ti)電(dian)(dian)阻(zu)(zu)起動(dong)器是采用特(te)種介質的(de)水溶液作為電(dian)(dian)阻(zu)(zu)，在特(te)殊設計的(de)液阻(zu)(zu)箱中引(yin)入(ru)極板作電(dian)(dian)極串(chuan)(chuan)入(ru)電(dian)(dian)機轉子回路中，電(dian)(dian)機起動(dong)時，由一小功率伺服電(dian)(dian)機帶動(dong)極板移動(dong)來改變(bian)極板的(de)相對位置，使(串(chuan)(chuan)入(ru)轉子回路的(de))液體(ti)電(dian)(dian)阻(zu)(zu)由大到小作無(wu)極變(bian)化，從而使電(dian)(dian)機低電(dian)(dian)流平滑起動(dong)。

三、性能特點

l 起動性能遠優于(yu)頻敏變阻(zu)器(qi)、油浸變阻(zu)器(qi)、鑄鐵電阻(zu)等起動器(qi)。

l 軟起動，起動電流小：小于電機額(e)定(ding)電流的1.3倍;

l 可連續起動5-10次;

l 起動過程(cheng)平滑起動：對設(she)備無機(ji)械應力(li)沖(chong)擊(ji)，可延(yan)長機(ji)械設(she)備及(ji)電(dian)機(ji)的壽(shou)命;

l 可低壓(ya)起(qi)動：電(dian)網電(dian)壓(ya)低于電(dian)機(ji)額(e)定電(dian)壓(ya)的(de)10%時(shi)，可順利起(qi)動;

l 適用性廣，可適用任何負載狀況下繞線式電機軟起動(dong)，特別(bie)適用于重(zhong)載起動(dong);

l 具有起動超時、失壓(ya)、超行程(cheng)、超溫等多重保護(hu)功能;

l 結(jie)構簡單、可靠，全(quan)部操作(zuo)自動化，安裝、維護方便。

四、主(zhu)要技術參數

l 起(qi)動(dong)電流 Iq≤1.3Ie;

l 起動時(shi)間 10—60S，預(yu)整定(ding)，現場(chang)可調(diao);

一、概述(shu)

SLRQ液體電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)起(qi)(qi)動(dong)(dong)控(kong)制器(qi)(qi)是為了(le)(le)進一步(bu)改(gai)善(shan)大(da)(da)、中(zhong)(zhong)型(xing)繞(rao)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)的(de)起(qi)(qi)動(dong)(dong)性(xing)能(neng)而(er)研制完成的(de)新一代(dai)起(qi)(qi)動(dong)(dong)控(kong)制裝置。克服了(le)(le)頻敏變(bian)(bian)阻(zu)器(qi)(qi)、油浸變(bian)(bian)阻(zu)器(qi)(qi)及(ji)鑄(zhu)鐵(tie)變(bian)(bian)阻(zu)器(qi)(qi)等(deng)老式起(qi)(qi)動(dong)(dong)控(kong)制設(she)(she)備沖擊電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)大(da)(da)(一般約(yue)為額定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)3～5倍)，起(qi)(qi)動(dong)(dong)不美好等(deng)不足。它是通過在(zai)被控(kong)大(da)(da)、中(zhong)(zhong)型(xing)繞(rao)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)的(de)轉子回(hui)路中(zhong)(zhong)串入(ru)一液體電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，且(qie)此電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)起(qi)(qi)動(dong)(dong)時自(zi)動(dong)(dong)投入(ru)并(bing)在(zai)預定(ding)的(de)時間內自(zi)動(dong)(dong)、無級、連(lian)續切除，從而(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)在(zai)美好的(de)起(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)條(tiao)件下平穩(wen)起(qi)(qi)動(dong)(dong)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)均(jun)勻(yun)升(sheng)速，這對(dui)保(bao)護電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)、用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)備、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網及(ji)節電(dian)(dian)(dian)(dian)(dian)(dian)(dian)等(deng)方面有(you)(you)顯著效果。加(jia)上系統起(qi)(qi)動(dong)(dong)、停(ting)止、、故障保(bao)護、聯絡、報警(jing)、顯示(shi)等(deng)方面進行精心設(she)(she)計，從而(er)使(shi)液體變(bian)(bian)阻(zu)器(qi)(qi)與其它老式起(qi)(qi)動(dong)(dong)器(qi)(qi)相比較(jiao)，具有(you)(you)自(zi)動(dong)(dong)化(hua)程度(du)高、起(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)小(一般小于(yu)額定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)1.3倍)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓低(di)亦能(neng)順利起(qi)(qi)動(dong)(dong)，很(hen)大(da)(da)地降低(di)了(le)(le)變(bian)(bian)壓器(qi)(qi)的(de)容量(liang)，是目(mu)前球磨機(ji)(ji)(ji)、提升(sheng)機(ji)(ji)(ji)、破碎機(ji)(ji)(ji)、壓縮(suo)機(ji)(ji)(ji)、風機(ji)(ji)(ji)、水泵等(deng)重負載起(qi)(qi)動(dong)(dong)控(kong)制設(she)(she)備。

SLRQ系(xi)列液體電(dian)阻起動器可廣泛用于(yu)水(shui)泥、化工、鋼鐵(tie)、冶金、礦山等行業90—6000KW繞線式異步電(dian)動機。

二、工(gong)作原理

SLRQ系列液體(ti)(ti)電(dian)阻(zu)起動(dong)器是采用特(te)種介質的水(shui)溶液作為電(dian)阻(zu)，在特(te)殊設(she)計的液阻(zu)箱中引入極(ji)板(ban)作電(dian)極(ji)串入電(dian)機轉(zhuan)子(zi)回路中，電(dian)機起動(dong)時，由一(yi)小(xiao)功率伺服(fu)電(dian)機帶動(dong)極(ji)板(ban)移動(dong)來改變極(ji)板(ban)的相對位置，使(串入轉(zhuan)子(zi)回路的)液體(ti)(ti)電(dian)阻(zu)由大(da)到小(xiao)作無極(ji)變化，從而使電(dian)機低(di)電(dian)流平滑起動(dong)。

三、性能(neng)特點(dian)

l 起動性能遠優于頻敏變阻器(qi)(qi)、油(you)浸變阻器(qi)(qi)、鑄鐵(tie)電阻等起動器(qi)(qi)。

l 軟起動(dong)，起動(dong)電(dian)(dian)流小(xiao)(xiao)：小(xiao)(xiao)于電(dian)(dian)機額(e)定電(dian)(dian)流的1.3倍;

l 可連續起動5-10次;

l 起動(dong)過程平(ping)滑起動(dong)：對設(she)備無(wu)機(ji)械應力(li)沖(chong)擊，可延長機(ji)械設(she)備及(ji)電機(ji)的壽命(ming);

l 可低壓(ya)起動(dong)：電網電壓(ya)低于電機額定電壓(ya)的10%時(shi)，可順(shun)利(li)起動(dong);

l 適用(yong)性廣，可(ke)適用(yong)任何負載狀況下繞線(xian)式電機軟起動，特別(bie)適用(yong)于重載起動;

l 具有起動超時(shi)、失壓(ya)、超行程、超溫等多重保護功能;

l 結構簡單(dan)、可靠，全部操作自動化，安(an)裝、維護方便。

四、主要(yao)技術參數(shu)

l 起動電(dian)流 Iq≤1.3Ie;

l 起動時間 10—60S，預整定，現(xian)場可調;

說明：

*1、輔(fu)助(zhu)功能

*2額(e)定容量：指適配電機(ji)大功(gong)率(lv)(KW)，詳(xiang)見標準規格

l 型(xing)號示例：

SLRQ—0.6P型(xing)表示適(shi)配大電機功率為630KW的普(pu)通型(xing)液體電阻(zu)起(qi)動器。

l 選型依據(ju)：

SLRQ系列(lie)起動器選型的主要參數為電機功率(lv)。用戶在(zai)選型時(shi)，應根據電機功率(lv)，依照(zhao)上述命名方法和本說明書“標準規(gui)格”中詳細(xi)的型號分類，確定要選用的起動器型號。

l 訂(ding)貨說明：

* 提(ti)供(gong)繞線電機型(xing)號、額定功率、定子(zi)電流、定子(zi)電壓、轉子(zi)電流、轉子(zi)電壓;

* 提(ti)供電機拖動(dong)的負載特(te)征(工況說明);

* 是(shi)否成(cheng)套(tao)訂(ding)貨(huo)，成(cheng)套(tao)訂(ding)貨(huo)包括：高(低)壓一次柜、液體(ti)電阻起動柜;

* 注明高壓一次柜柜型(GG1A、XGN、KYN等)

* 其它特(te)殊要求。

九、標(biao)準規格

十、外形示意圖

十一、與其它設(she)備的聯接(見附圖(tu)—電(dian)氣聯鎖圖(tu))

十(shi)二(er)、安裝(zhuang)調(diao)試(shi)

SLRQ系列起(qi)動(dong)器的安裝調(diao)試須在(zai)我方技術人員現(xian)場指導下進行。但(dan)在(zai)正式(shi)調(diao)試前用戶(hu)需將設(she)備(bei)(bei)就位，并準備(bei)(bei)好(hao)連接主電機滑環至起(qi)動(dong)器的電纜(應能(neng)承載轉子(zi)電流)。

(一)、安裝與連(lian)線

1、 控(kong)制(zhi)柜(ju)和電(dian)阻柜(ju)應安裝(zhuang)在(zai)可泄水(shui)(shui)的水(shui)(shui)泥平(ping)臺上，確(que)保柜(ju)體(ti)與水(shui)(shui)平(ping)面垂直，柜(ju)體(ti)緊固于平(ping)臺 上的槽鋼上，且控(kong)制(zhi)柜(ju)下方應有(you)電(dian)纜溝。

2、 按照電(dian)氣原理圖(tu)(tu)和(he)電(dian)氣聯鎖圖(tu)(tu)將電(dian)動機轉子電(dian)纜線(xian)(電(dian)纜線(xian)能(neng)承載(zai)足夠的(de)電(dian)流)引入起動控(kong)制柜并連(lian)接(jie)好(hao)，同時接(jie)好(hao)聯鎖控(kong)制線(xian)。

3、 檢查接線是否(fou)正確，緊固件是否(fou)松動。

十一、與其(qi)它(ta)設備的聯接(見(jian)附圖—電(dian)氣聯鎖圖)

十二、安裝調試

SLRQ系列起動(dong)器(qi)的安裝(zhuang)調(diao)試(shi)須在我(wo)方技術人員現場(chang)指導(dao)下進行。但在正式(shi)調(diao)試(shi)前用戶需(xu)將設備就位，并(bing)準備好連(lian)接主電(dian)機滑環至起動(dong)器(qi)的電(dian)纜(應能承(cheng)載(zai)轉(zhuan)子電(dian)流)。

(一)、安裝與(yu)連線

1、 控(kong)制(zhi)柜(ju)(ju)(ju)和(he)電阻柜(ju)(ju)(ju)應(ying)安裝在可泄水的水泥平臺上(shang)，確保(bao)柜(ju)(ju)(ju)體(ti)與水平面垂直，柜(ju)(ju)(ju)體(ti)緊固(gu)于平臺 上(shang)的槽(cao)鋼上(shang)，且控(kong)制(zhi)柜(ju)(ju)(ju)下(xia)方(fang)應(ying)有電纜溝。

2、 按照電(dian)氣原(yuan)理圖和電(dian)氣聯(lian)鎖(suo)圖將電(dian)動機(ji)轉子電(dian)纜線(電(dian)纜線能承載足夠的(de)電(dian)流(liu))引入起動控制(zhi)(zhi)柜并(bing)連接(jie)好，同時接(jie)好聯(lian)鎖(suo)控制(zhi)(zhi)線。

3、 檢(jian)查接線是否正確，緊固件是否松(song)動。

1、 檢查液體(ti)電(dian)(dian)阻(zu)(zu)極板(ban)對(dui)地(di)絕緣電(dian)(dian)阻(zu)(zu)應(ying)≥5MΩ

(二(er))調試

1、 檢查液(ye)體電(dian)阻(zu)箱位(wei)置(zhi)和極(ji)板活(huo)(huo)動(dong)情(qing)況。在未配電(dian)阻(zu)液(ye)的情(qing)況下直向提取活(huo)(huo)動(dong)極(ji)板，看是否靈活(huo)(huo)，否則應擺(bai)正液(ye)體電(dian)阻(zu)箱位(wei)置(zhi)。

2、 主(zhu)電(dian)機(ji)一(yi)(yi)次回路不(bu)合閘，合上(shang)起(qi)動控制柜內(nei)的QF1，極板(ban)應向(xiang)復位向(xiang)移動，否則應立即斷(duan)開QF1,并把A、B、C三相電(dian)源線(xian)中(zhong)任意兩相線(xian)調換一(yi)(yi)下(xia)即可，合上(shang)試(shi)驗(yan)按鈕SA，試(shi)驗(yan)起(qi)動器(qi)的起(qi)動、運行狀(zhuang)(zhuang)態是否正常，然后斷(duan)開SA，看停機(ji)狀(zhuang)(zhuang)態是否正常。

3、 配(pei)制電阻液：

1 液體電阻(zu)的確定

串入電(dian)動機(ji)轉(zhuan)子回路每(mei)相電(dian)阻值(zhi)R0，按下式確(que)定：

U2e：轉(zhuan)(zhuan)子開路電(dian)壓 I2e：轉(zhuan)(zhuan)子額定電(dian)流

I1e：定(ding)(ding)子額定(ding)(ding)電流(liu) I1：定(ding)(ding)子運(yun)行電流(liu)

KM：起動轉矩比(bi)：1.1～1.3

2 液體電阻的配制

a 先(xian)將(jiang)活動(dong)極板(ban)移到(dao)允許起動(dong)位置(zhi)，并(bing)將(jiang)清水(shui)(shui)沖入水(shui)(shui)箱到(dao)規(gui)定水(shui)(shui)位的3/4左右;

b將(jiang)電(dian)液溶解后(hou)分三等份注入三個水箱內，溶液濃度在3%左(zuo)右;

c將活動極升降數次，溶液攪拌(ban)均勻，然后將極板(ban)復位，測每(mei)相兩動靜(jing)極板(ban)間(jian)電(dian)阻值R;

d若R值在Ro范圍(wei)內，就可(ke)試車起(qi)動;若R值未在Ro范圍(wei)內則需要調整(zheng)。R過大(da)時應(ying)變(bian)大(da)電液濃(nong)(nong)度;R過小(xiao)時應(ying)降(jiang)低電液粉濃(nong)(nong)度。

3 液體電阻的測量

將(jiang)液體(ti)電阻的活動極板移至(zhi)允許起(qi)動位置后，給每相兩動靜極板之間通于50HZ，5A交流電流I(A)，并(bing)測(ce)量(liang)兩電極之間的壓降V(V)，測(ce)液體(ti)電阻值(zhi)為(wei)：

R(Ω)= V(V)/ I(A)

測量(liang)電(dian)路如下：

B：調壓器 5KVA A：交流(liu)電(dian)流(liu)表(biao)0.5級(ji) V：交流(liu)電(dian)壓表(biao)0.5級(ji)

(三)試(shi)車

觀察起(qi)動電流是(shi)否小(xiao)于1.3Ie，若(ruo)是(shi)，則可以正式投入使用，否則，應(ying)調整(zheng)電阻液(ye)體(ti)濃度(du)，若(ruo)起(qi)動電流過(guo)大(da)，則應(ying)加適量清水降低電液(ye)濃度(du)。

B：調壓(ya)器 5KVA A：交流電流表0.5級 V：交流電壓(ya)表0.5級

(三)試車

觀察起動電(dian)(dian)流(liu)(liu)是(shi)(shi)否小(xiao)于(yu)1.3Ie，若(ruo)(ruo)是(shi)(shi)，則(ze)可(ke)以正式投入使用(yong)，否則(ze)，應調整電(dian)(dian)阻液(ye)體濃(nong)度(du)，若(ruo)(ruo)起動電(dian)(dian)流(liu)(liu)過大，則(ze)應加適量清水降低電(dian)(dian)液(ye)濃(nong)度(du)。