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FPWK 有功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)變(bian)送器是一(yi)種能將(jiang)被測有功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)和無功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)轉換成直流(liu)輸出(chu)(chu)的儀(yi)器，其轉換成的直流(liu)電流(liu)或電壓為線(xian)性比例(li)輸出(chu)(chu)，并能反映出(chu)(chu)被測功(gong)(gong)(gong)(gong)率(lv)(lv)在線(xian)路中的傳輸方(fang)向(xiang)。

FPW 有(you)功(gong)(gong)功(gong)(gong)率(lv)(lv)變(bian)(bian)(bian)送器(qi)、FPK型(xing)無功(gong)(gong)功(gong)(gong)率(lv)(lv)變(bian)(bian)(bian)送器(qi)及(ji)FPWK型(xing)有(you)功(gong)(gong)功(gong)(gong)率(lv)(lv)/無功(gong)(gong)功(gong)(gong)率(lv)(lv)組合式變(bian)(bian)(bian)送器(qi)，是一種(zhong)能將(jiang)被測有(you)功(gong)(gong)功(gong)(gong)率(lv)(lv)和無功(gong)(gong)功(gong)(gong)率(lv)(lv)轉(zhuan)換成(cheng)直流(liu)輸(shu)(shu)出的(de)儀器(qi)，其轉(zhuan)換成(cheng)的(de)直流(liu)電(dian)(dian)流(liu)或(huo)電(dian)(dian)壓(ya)為線性比例(li)輸(shu)(shu)出，并能反映出被測功(gong)(gong)率(lv)(lv)在線路中的(de)傳輸(shu)(shu)方向。它(ta)們適(shi)用于(yu)頻率(lv)(lv)為50Hz、60Hz及(ji)特(te)殊(shu)頻率(lv)(lv)的(de)各種(zhong)單、三相（平(ping)衡或(huo)不平(ping)衡）線路，配以(yi)適(shi)當的(de)指示(shi)儀表(biao)或(huo)裝置，可廣泛(fan)地(di)應用發電(dian)(dian)廠和輸(shu)(shu)變(bian)(bian)(bian)電(dian)(dian)系統及(ji)其它(ta)對(dui)功(gong)(gong)率(lv)(lv)測量要求較高的(de)場所。

FPW型(xing)有功(gong)(gong)功(gong)(gong)率(lv)變(bian)送(song)(song)器、FPK型(xing)無(wu)功(gong)(gong)功(gong)(gong)率(lv)變(bian)送(song)(song)器及FPWK型(xing)有功(gong)(gong)功(gong)(gong)率(lv)/無(wu)功(gong)(gong)功(gong)(gong)率(lv)組合式變(bian)送(song)(song)器，是一種(zhong)能將(jiang)被(bei)測(ce)(ce)有功(gong)(gong)功(gong)(gong)率(lv)和無(wu)功(gong)(gong)功(gong)(gong)率(lv)轉換(huan)成直流輸(shu)(shu)出(chu)的儀器，其轉換(huan)成的直流電(dian)流或(huo)電(dian)壓為(wei)線性比(bi)例輸(shu)(shu)出(chu)，并能反映出(chu)被(bei)測(ce)(ce)功(gong)(gong)率(lv)在(zai)線路(lu)中(zhong)的傳輸(shu)(shu)方向。它們適(shi)用于(yu)頻率(lv)為(wei)50Hz、60Hz及特殊頻率(lv)的各(ge)種(zhong)單、三相（平衡或(huo)不平衡）線路(lu)，配(pei)以適(shi)當的指示儀表或(huo)裝置，可(ke)廣泛地應(ying)用發電(dian)廠和輸(shu)(shu)變(bian)電(dian)系統及其它對功(gong)(gong)率(lv)測(ce)(ce)量要求較高(gao)的場所(suo)。

S3-WD 有功(gong)功(gong)率(lv)(lv)變(bian)送(song)器(qi)是一種能將被測(ce)功(gong)率(lv)(lv)電量的(de)電壓電流(liu)分(fen)別(bie)采(cai)樣、隔離放大(da)，并經過高(gao)精度時分(fen)割乘法器(qi)運(yun)算，轉換成與輸(shu)入信號有功(gong)功(gong)率(lv)(lv)成線性(xing)比例直流(liu)信號輸(shu)出的(de)的(de)儀器(qi)，它(ta)能反映被測(ce)功(gong)率(lv)(lv)在系(xi)(xi)統(tong)中(zhong)的(de)傳(chuan)輸(shu)方向。該系(xi)(xi)列(lie)變(bian)送(song)器(qi)適用于頻率(lv)(lv)為(wei)50Hz或60Hz的(de)單相、三(san)相（平衡或不平衡）線路中(zhong),可廣泛應用于電力(li)及非電力(li)系(xi)(xi)統(tong)對功(gong)率(lv)(lv)測(ce)量要求(qiu)較高(gao)的(de)場所,，可長(chang)期連(lian)續運(yun)行(xing)，實(shi)現對系(xi)(xi)統(tong)功(gong)率(lv)(lv)量的(de)測(ce)量與控(kong)制。