關于壓縮機電容和風機電容的那些知識…

     
1基礎知識

1、安裝位置

YASUOJIHESHIWAIFENGJIANZHUANGZAISHIWAIJI, ?YINCIYASUOJIDIANRONGHESHIWAIFENGJIDIANRONGYEANZHUANGZAISHIWAIJI, BINGQIEANZHUANGZAISHIWAIJIZHUANMENSHEJIDEDIANKONGHENEI。

2、實物外形

電容最主要的參數是容量和交流耐壓值:

1)、容量:單位為微法( μF), 由壓縮機或室外風機的功率決定, 即不同的功率選用不同容量的電容。 常見參考下表:

2)、耐壓:電容工作在交流(AC)電源且電壓為220V, 因此耐壓值通常為交流450V (450VAC)。

3)、CBB61 ( 65):為無極性的聚丙烯薄膜交流電容器, 具有穩定性好、 耐沖擊電流、 過載能力強、 損耗小、 絕緣阻值高等優點。

2電容知識綜述

1)、YINGWENFUHAO:FENGJIDIANRONGWEIFANCAP、 YASUOJIDIANRONGWEICOMPCAP;

2)、ZUOYONG:YASUOJIYUSHIWAIFENGJIZAIQIDONGSHISHIYONG 。DANXIANGDIANJITONGRUDIANYUANSHI,SHOUXIANDUIDIANRONGCHONGDIAN,SHIDIANJIQIDONGRAOZUZHONGDEDIANLIUCHAOQIANYUNXINGRAOZU90°。CHANSHENGXUANZHUANCICHANG, DIANJIBIANYUNXINGQILAI。

3)、TEDIAN:YOUYUWEIWUJIXINGDEDIANRONG,2ZUJIEXIANDUANZIDEZUOYONGXIANGTONG, SHIYONGSHIMEIYOUZHENGFUZHIFEN。

4)、KONGDIAOQIZHILENGLIANGYUYASUOJIDIANRONGRONGLIANGDEDAZHIDUIYINGGUANXI。

5)、風機轉速快慢與電容容量無關系, 決定風機轉速的因素是線圈極數,?如通過增加電容容量來增加風機轉速的想法是不可取的, 并且容易因過熱損壞風機線圈;風機線圈極數與 轉速(r/min)對應關系見下圖:

6)、GENGHUANFENGJIDIANRONG、 YASUOJIDIANRONGSHIYAOGENJUYUANDIANRONGRONGLIANGHENAIYAZHIXUANYONG。 NAIYAZHIYIBANWEIJIAOLIU 450V , RONGLIANGWUCHAYINGWEIYUANRONGLIANGDE20%YINEI , RUXIANGCHATAIDUO, ZERONGYISUNHUAIDIANJI。

3壓縮機電容接線知識

YASUOJIDIANRONGYESHEYOU2ZUJIEXIANDUANZI, JIANXIATU:

1ZUWEI4PIAN,1ZUWEI2PIAN;

WEI4PIANDEJIEXIANDUANZIGONGNENG:JIESHIWAIJIJIEXIANDUANZISHANGLINGXIAN(N)、 JIEYASUOJIYUNXINGRAOZU(R)、 JIESHIWAIFENGJIXIANQUANSHIYONGDE LINGXIAN(N)、 JIESITONGFAXIANQUANSHIYONGDELINGQIAN(N);

ZHIYOU2PIANDElZUZHISHIYONG1PIAN, JIEYASUOJIQIDONGRAOZU(S);

SHUOMING:RUGUOSHIWAIFENGJIHUOSITONGFAXIANWANGSHIYONGDELINGXIAN( N), JUNLIANJIEZHISHIWAIJIJIEXIANDUANZISHANGDELINGXIAN(N), ZEYASUOJIDIANRONGDE4PIANJIEXIANDUANZIZHILIANJIE2GENYINXIAN, JISHIWAIJIJIEXIANDUANZISHANGLINGXIAN(N)HEYASUOJIYUNXINGRAOZU( R)。

4電容檢查方法

1、根據外觀判斷壓縮機電容好壞

RUGUODIANRONGDIBUFAGU, FANGZAIZHUOMIAN(PINGMIAN)SHANGZUOYOUYAOHUANG, ?SHUOMINGDIANRONGWURONGLIANGSUNHUAI,KEZHIJIEGENGHUAN。 ZHENGCHANGDEDIANRONGDIBUPINGTAN, FANGZAIZHUOMIANSHANGHENWEN。

SHUOMING: RUDIANRONGDIBUFAGU, KENDINGSUNHUAI, KEZHIJIEGENGHUAN;

RUDIANRONGDIBUPINGTAN, YENENGBUZHENGMINGKENDINGZHENGCHANG, YINGSHIYONGQITAFANGFAJIANCEHUOJINXINGDAIHUAN。

2、充放電法:

JIANGDIANRONGDEJIEXIANDUANZIJIESHANG2GENYINXIAN, TONGRUJIAOLIUDIANYUAN(220V)YUE1 s DUIDIANRONGCHONGDIAN,RANHOUDUANJIEYINXIANLIANGDUANDUIDIANRONGFANGDIAN。

GENJUFANGDIANSHENGYINPANDUANGUZHANG:

1)、聲音很響, 電容正常;

2)、聲音微弱, 容量減少;

3)、無聲音, 電容已無容量。

3、萬用表檢測

YOUYUZHIZHENSHIWANYONGBIAOBUJUBEIJIANCEDIANRONGRONGLIANGDEGONGNENG, SHIYONGZHIZHENSHIWANYONGBIAODIANZUDANGJINNENGDAZHIPANDUANDIANRONGQIDEHAOHUAI, YINCIYINGXUANYONGDAIYOUDIANRONGRONGLIANGJIANCEGONGNENGDESHUZISHIWANYONGBIAOHUOZHUANYONGYIBIAOLAIJIANCERONGLIANG。

ZAIJIANCEDIANRONGQIQIAN, YINGDUIQIJINXINGFANGDIANCAOZUO, TEBIESHIDUIYUGONGZUOYUGAOYADIANLUDEDIANRONGQI, YIBAOZHENGYIQI HERENSHENANQUAN。

BENLIXUANYONGMOUPINPAIDEVC97XINGWANYONGBIAO, ?ZUIDAJIANCERONGLIANG200μF, TEDIANSHIJIANCEYUANJIXINGDIANRONGSHI, SHIYONGWANYONGBIAOBIAOBIJIUKEYIZHIJIEJIANCE;ERBUXIANGQITAPINPAIHUOXINGHAODEBUFENWANYONGBIAO, XUYAOJIANGDIANRONGJIESHANGYINXIAN, ZAICHARUWANYONGBIAOZHUANYONGDEJIANCEKONGCAINENGJIANCE。

?* 說明:VC97型萬用表電容檔, 單位為nF (毫微法、 納法)和μF (微法), 見圖4-6右 圖, 換算關系為 1 μF =1000nF。

JIANCESHIJIANGWANYONGBIAOBODAODIANRONGDANG, DUANKAIKONGDIAOQIDIANYUAN, BAXIAYASUOJIDIANRONGDE2ZUDUANZISHANGYINXIAN, SHIYONG2GEBIAOBIZHIJIECELIANG2GEDUANZI, YIBIAOZHURONGLIANG30μFDEDIANRONGWEILI, SHICERONGLIANGWEI30. 17 μF, SHUOMINGBEICEDIANRONGZHENGCHANG。