A.電弧爐 B.電焊機(jī) C.硅整流設(shè)備 D.可控硅換流設(shè)備
A.P=UAIAcosφA+UBIBcosφB+UCICcosφC B.P=UAIAsinφA+UBIBsinφB+UCICsinφC C.P=UAIAtgφA+UBIBtgφB+UCICtgφC D.P=UAIActgφA+UBIBctgφB+UCICctgφC
A.P=UAIAcosφA+UBIBcosφB+UCICcosφC B.P=UAIAsinφA+UBIBsinφB+UCICsinφC C.P=UAIAtgφA+UBIBctgφB+UCICctgφC D.P=3UIctgφA