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How many earthings are provided for a 250KVA distribution
transformer?
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Answer Posted / ars326
1.Transformer tank
2.Neutral
3.lightning arrestor
| Is This Answer Correct ? | 9 Yes | 3 No |
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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
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