PPT Slide
Calculate the total three-phase power supplied to the load.
|Iph| = |Vll| / |Z| = 220 V. / 10 W = 220 V. / 10 W = 22 A.
|Il| = Ö3|Iph| = Ö3 ´ 22 A. » 38.12 A. (answer)
Z = 10 + j0 W = 10/ 0° W \ q » 0° so that …
S3ph = Ö3|Vll||Il|(cosq + jsinq) = Ö3 ´ 220 V. ´ 38.12 A. ´ (1 + j0)
S3ph » 14.52 KW + j0 KVAR \ P3ph » 14.52 KW (answer)
Section 11.3: Power in Three-Phase Systems cont.
Example 11.3 (pp. 463-464) cont.