Transformers are often rated in terms of kilovolt-amps. A pole on a residential street has a transformer rated at 35 kV·A to serve four homes on the street.
(a) If each home has a fuse that limits the incoming current to 60 A rms at 220 V rms, find the maximum load in kV·A on the transformer.
(b) Is the rating of the transformer adequate?
(c) Explain why the transformer rating is given in kV·A rather than in kW.