Q96-FTZ 三相功率因數表

Q96-FTZ 三相功率因數表主要技術指標

精(jing)確度:1.5級 塑料殼隔(ge)離(li)：按IP22

以前板長寬高:96 X 96mm,72 X 72mm兩樣 儀器偏(pian)拐(guai)角：

              Q72-FETC、Q96 —FETC: 90° 

           ;   Q72-FTZ.Q96-FTZ: 240°

馬力條件轉型:Q96內(nei)附(fu)..Q72外附(fu)CVIOO-COS少 多功能儀表(biao)標(biao)度尺：黃白色(se)底青色(se)標(biao)尺刻度,如需人設值可劃(hua)紅(hong)杠。 

特(te)殊的頻率：50Hz，60Hz 儀器裝置:用4個對角(jiao)吊架(jia)規定 區域(yu)環境溫度范圍內：一(yi) 25～55 °C 

重 量： Q72 - FETC, Q96- FETC:0.25kg 

            Q72 - FTZ、Q96 — FTZ:0.30kg 

            CV100-COS 0:0.65kg

結構原理

儀表采(cai)用相位差(cha)轉換成電壓信號.將U-I相位差(cha)變換 為：DC 0～3號,驅動測量機構，指(zhi)示相應的功率因數。

被(bei)測(ce)(ce)電(dian)(dian)(dian)(dian)壓(ya)(ya)由電(dian)(dian)(dian)(dian)阻分壓(ya)(ya)，斬波(bo)器(qi)變為(wei)矩形波(bo),被(bei)測(ce)(ce)電(dian)(dian)(dian)(dian)流(liu)及 互感器(qi),取樣電(dian)(dian)(dian)(dian)阻后，經(jing)移相，斬波(bo)后也變為(wei)矩形波(bo),兩(liang)信號(hao) U、I送(song)人(ren)異或門，使脈沖(chong)寬度與(yu)電(dian)(dian)(dian)(dian)壓(ya)(ya)電(dian)(dian)(dian)(dian)流(liu)相位(wei)差成比例，此 信號(hao)經(jing)積分，放大和線(xian)性(xing)調(diao)整(zheng)電(dian)(dian)(dian)(dian)絡輸出(chu)DC 0 ～3號(hao)，供(gong) 測(ce)(ce)量機構(gou)指示(shi)。穩壓(ya)(ya)電(dian)(dian)(dian)(dian)路(lu)取自被(bei)測(ce)(ce)電(dian)(dian)(dian)(dian)壓(ya)(ya).經(jing)整(zheng)流(liu)濾波(bo)穩壓(ya)(ya) 后,輸出(chu)± 12V,供(gong)各電(dian)(dian)(dian)(dian)路(lu)工作。