Power in Balanced 3 phase Loads

Power in Balanced 3 phase Loads - h1011v3_86

Power in Balanced 3 phase Loads - h1011v3_88

Electrical Science Volume 3 of 4
Page Navigation
63

Basic AC Power THREE-PHASE CIRCUITS As you can see, the total power formulas for Figure 13 3f Power Triangle delta- and wye-connected loads are identical. Total apparent power (S_T) in volt-amperes and total reactive power (Q_T) in volt-amperes-reactive are related to total real power (P_T) in watts (Figure 13). A balanced three-phase load has the real, apparent, and reactive powers given by: P_T 3 V_TI_Lcosq S_T 3 V_TI_L Q_T 3 V_TI_Lsinq Example 1: Each phase of a delta- Figure 14 Three-Phase Delta Generator connected 3f AC generator supplies a full load current of 200 A at 440 volts with a 0.6 lagging power factor, as shown in Figure 14. Find: 1. V_L 2. I_L 3. P_T 4. Q_T 5. S_T Solution: 1. V_L V_f V_L 440 volts Rev. 0 Page 21 ES-09

Privacy Statement
Press Release
Contact