Home › Electrical Engineering Forum › General Discussion › note on generator transformer sizing › Re: note on generator transformer sizing
2011/01/29 at 11:15 am
#11783
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Keymaster
In sizing a transformer used as secondary output for a generator, the following things have to be considered:
1. the size, in KVA, must not be less than the max KVA rating of the generator. remember that some generators have a service factor of 10% above the max nameplate rating.
2. the voltage and frequency also play a vital role in the selection of a transformer.
3. we do not size the transformers at 100% loading but we have to consider demand factor, usually at 85%.
4. i presume that that the size of the generator was computed based on the known loads (and future loads).