NH3000三(san)相(xiang)數字相(xiang)位(wei)伏安表可以在被測(ce)(ce)回(hui)路(lu)不(bu)開(kai)路(lu)的(de)(de)情況下，同時測(ce)(ce)量三(san)相(xiang)交流電(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)流、電(dian)(dian)(dian)壓(ya)(ya)間相(xiang)位(wei)、電(dian)(dian)(dian)流間相(xiang)位(wei)、電(dian)(dian)(dian)壓(ya)(ya)電(dian)(dian)(dian)流間相(xiang)位(wei)，判別(bie)三(san)相(xiang)相(xiang)序，變壓(ya)(ya)器接線(xian)組(zu)別(bie)、感性、容性電(dian)(dian)(dian)路(lu)，計算功率、功率因(yin)數，測(ce)(ce)試二次回(hui)路(lu)和母(mu)差保(bao)護(hu)系(xi)統，讀出差動保(bao)護(hu)各組(zu)CT之間的(de)(de)相(xiang)位(wei)關系(xi)，檢(jian)查(cha)電(dian)(dian)(dian)度表的(de)(de)接線(xian)正確與否，檢(jian)修線(xian)路(lu)設備等，為(wei)用電(dian)(dian)(dian)檢(jian)查(cha)人員(yuan)提(ti)供一種安全(quan)、準確、便捷(jie)的(de)(de)新型(xing)電(dian)(dian)(dian)力儀表.