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潛水排污泵的保護措施

添加時間:2021-08-19 15:19:06   瀏覽次數:1433  

在潛(qian)水排污泵啟動之前(qian),應由(you)一名合格的(de)電工對(dui)該系統進行檢(jian)查(cha),以確保下列下述(shu)各頂(ding)所(suo)要(yao)求(qiu)的(de)電器(qi)保護措施:

1、電(dian)(dian)(dian)(dian)源(yuan)(yuan)裝置應(ying)正常。電(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)(ya)、頻(pin)率應(ying)符(fu)合規定(電(dian)(dian)(dian)(dian)壓(ya)(ya)為380V±5%,頻(pin)率為50Hz±1%),且(qie)(qie)電(dian)(dian)(dian)(dian)壓(ya)(ya)的瞬時超差不應(ying)超過10%。如(ru)果電(dian)(dian)(dian)(dian)源(yuan)(yuan)離(li)水泵使(shi)用的距離(li)較遠時,電(dian)(dian)(dian)(dian)纜的截面積應(ying)加粗,接(jie)頭應(ying)盡可能少些,否則(ze)會使(shi)電(dian)(dian)(dian)(dian)壓(ya)(ya)下(xia)降(jiang)太多,且(qie)(qie)應(ying)在電(dian)(dian)(dian)(dian)纜接(jie)頭處(chu)作密封(feng)防水處(chu)理,以防漏(lou)電(dian)(dian)(dian)(dian);

2、潛水排污泵在(zai)運轉前,應用(yong)0~500兆歐表檢查電(dian)機相(xiang)(xiang)間及相(xiang)(xiang)對地絕(jue)緣電(dian)阻,低値應大于(yu)2 MΩ;

3、在四芯電(dian)纜(lan)中,帶有符(fu)號(hao)"┴"者為(wei)接地線(xian)(一般為(wei)綠黃雙色線(xian)或黑(hei)色線(xian))為(wei)了保證使用,須牢固接地,并(bing)比其它線(xian)長出50mm;

4、條(tiao)件(jian)許可時,電(dian)器保(bao)護(hu)裝(zhuang)置可包括:接地保(bao)護(hu)器,地面漏電(dian)斷流器等,但是,在任何情(qing)況下,都須(xu)裝(zhuang)有和電(dian)泵額定(ding)電(dian)流値(zhi)相符(fu)的慢熔(rong)保(bao)險熔(rong)斷絲;

5、電器控制裝置應防潮(chao),井安裝在防潮(chao)的(de)區(qu)域(yu),電纜(lan)的(de)安放應注意不要使其(qi)堵(du)在泵的(de)吸入口處(chu);

6、檢(jian)查(cha)(cha)轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang)。在潛(qian)水排污(wu)泵初(chu)次啟動(dong)(dong)(dong)(dong)或(huo)重新安(an)(an)裝后都(dou)應(ying)檢(jian)查(cha)(cha)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang),轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang)不正確運轉(zhuan)(zhuan)(zhuan)(zhuan)會造成潛(qian)水排污(wu)泵效率降低,或(huo)造成葉(xie)輪(lun)脫落(luo)等損壞(huai)水泵事頂(ding)。為測定轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang),在潛(qian)水排污(wu)泵安(an)(an)裝之前,應(ying)舉高并作(zuo)點(dian)動(dong)(dong)(dong)(dong)運行,符合下(xia)列情況即轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang)正確,否則(ze),應(ying)交換控(kong)制器上(shang)三相(xiang)線中任意(yi)兩根(gen)線的位置以改(gai)變轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang):從(cong)泵的頂(ding)部向(xiang)(xiang)(xiang)(xiang)下(xia)看,轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)順時針方(fang)向(xiang)(xiang)(xiang)(xiang)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong),從(cong)底(di)部向(xiang)(xiang)(xiang)(xiang)上(shang)看〔即吸入口方(fang)向(xiang)(xiang)(xiang)(xiang)〕可見(jian)葉(xie)片按逆(ni)時針方(fang)向(xiang)(xiang)(xiang)(xiang)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)。

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