THREE-PHASE CIRCUITS
Basic AC Power
Figure 16 3f Unbalanced Load
Find line current and neutral current for the following load conditions.
1.
balanced load
2.
open circuit phase A (Figure 16b)
3.
short circuit in phase A (Figure 16c)
1.
IL
If
If
Vf
Rf
Vf
VL
3
IL
VL
3
Rf
240
1.73
40
138.7
40
IL
3.5 amps
IN
0
ES-09
Page 24
Rev. 0
