Question

Four loads are
connected across a
230V, 50 Hz line (a) Lights 10kVA at unity power factor
(b) a motor 4k wat
0.8 logging (c) A rectifier
3.6 kW at
at power factor 0.6 leading
(d) a capacitor 8kVA. Determine
1 )The total kW
2)The total k VAr
3)The total kVA
4)The overall power factor
​

Answer 1

Answer:

1. 10 kW

2. 0.8*4k = 3.2 kVAR

3. 3.6*0.6 = 2.16 kVA

4. Overall power factor =

$\sqrt{ |0.8 ^{2} | + |0.6 {}^{2} | }$

= 1