搜索關鍵詞:熱(re)電偶,熱(re)電阻(zu),雙金(jin)屬溫(wen)度(du)計(ji),壓力(li)表,壓力(li)變送(song)器,磁(ci)翻(fan)板(ban)液位計(ji)
大概闡述(shu):Q72-WMCZ 單(dan)相(xiang)功(gong)(gong)率(lv)表嵌入安裝在船舶或其他移動電(dian)力設備裝置上, 測量單(dan)相(xiang)交(jiao)流電(dian)路中的有功(gong)(gong)功(gong)(gong)率(lv)。
Q72-WMCZ 單相功率表結構原理
義表用磁電系預估結構,并有將工率轉變成電壓電流信 號的變幻器。儀表的(de)變換部分是將待測功率變為(wei)DC 0~3號,變 換器采用內附(fu)或外(wai)附(fu).其原(yuan)理框圖如(ru)下:
被測(ce)電(dian)(dian)流(liu)經互感器,電(dian)(dian)流(liu)-電(dian)(dian)壓(ya)(ya)轉(zhuan)換器,電(dian)(dian)壓(ya)(ya)經取(qu)(qu)樣電(dian)(dian) 路后,送入乘(cheng)法(fa)器,乘(cheng)積經濾(lv)波.再電(dian)(dian)壓(ya)(ya)放大(da),轉(zhuan)換成DC 0?3號.驅動(dong)測(ce)量機構。穩壓(ya)(ya)電(dian)(dian)路電(dian)(dian)源取(qu)(qu)自(zi)待測(ce)電(dian)(dian)壓(ya)(ya)。
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