Two 3-phase transformers of 1000 kVA and 500 kVA have % impedances of 5% and 10% respectively. Total load is 900 kVA. Load carried by 1000 kVA transformer is:

Option 1: 720 kVA

Option 2: 450 kVA

Option 3: 600 kVA

Option 4: 750 kVA

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Correct Option: 1

Explanation

Load sharing ∝ kVA/%Z. For 1000 kVA: 1000/5=200, for 500 kVA: 500/10=50. Load = (200/250)×900 ≈ 720 kVA.