Engine : Electricity - 1117/1386
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| « Previous Question |
| A 440/110 V single phase transformer supplies a load of 5 kW at 0.8 power factor load. What will be its primary current? |
| A) 45.45 A |
| B) 56.82 A |
| C) 14.2 A |
| D) 11.36 A |
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| Comments |
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| I believe this answer is 11.36A |
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| P=I*U*load factor Correct answer is 14.2A |
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| can someone show the math to this? |
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| P = 5000 W (5kW), V = 440 V, Load Factor = 0.8, P = I*V*Load Factor 5000 = I*440*0.8 I = 5000/(440*0.8) = 14.2 A |
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| Thank you DRACOPOLIS |