SSC JE Electrical Engineering 24 Jan 2018 Evening Paper

Question : 140 of 200

Marks: +1, -0

What is the appar ent power of a 3-phase star connected system having a line voltage of 250 V and a line current of 40 A and the phase differ ence between the voltage and curr ent is 36.87 degrees?

13.856 kW
13.856 kVA
17.32 kW
17.32 kVA

Validate

Solution:

Apparent power

= √3V_\LL I_\LL

= √3 ×250.40

= 17.32 KVA

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