14.5.4 example 1 part 1

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Page 1: 14.5.4 Example 1 Part 1
Page 2: 14.5.4 Example 1 Part 1
Page 3: 14.5.4 Example 1 Part 1
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Page 6: 14.5.4 Example 1 Part 1

Apparent power (S) = I x VS = 9.615 x 240 = 2.308 kVA

Page 7: 14.5.4 Example 1 Part 1

2.308 kVA is a much larger figure than 1.5 kW, which indicates that the power factor in this circuit is rather poor (substantially less than 1).

Page 8: 14.5.4 Example 1 Part 1

1.5 kW pf = 2.308 kVA 1500pf = 2308 = 0.65Power factor (pf) = 0.65

Page 9: 14.5.4 Example 1 Part 1

(Cos¯¹ 0.65 = 49.46°)