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Module 6: Power

Quiz

Q1 Circuit 1. Determine the power factor for the following system:

Load 1: VAR (L), W
Load 2: VAR (C), W
Load 3: VAR (L), W

Q2 Circuit

2. For the illustrated system, find the current \(I\):

Load 1: VAR (L), W
Load 2: VAR (L), W
Load 3: VAR (C), W
Load 4: VAR (C), W

3. The loading of a factory on a 1000 V, 60 Hz system includes kW heating (unity power factor), kW induction motors (0.7 lagging power factor), and kW lighting (0.85 lagging power factor); What is the required capacitor to raise the power factor to unity?

4. Fill the blank fields with the apparent power, active power, and reactive power of the previous system:

kW
kVAR
kVA