K-Rated Transformer
- Thread starter danilo
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charlie
Senior Member
- Location
- Indianapolis
Re: K-Rated Transformer
It will work fine. You will get more core steel, a larger grounded conductor, and a higher cost but the transformer will work just fine.
It will work fine. You will get more core steel, a larger grounded conductor, and a higher cost but the transformer will work just fine.
- Location
- Lockport, IL
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- Semi-Retired Electrical Engineer
Re: K-Rated Transformer
The K-Rating is a measure of the transformer's ability to tolerate the heat generated by the harmonic currents. You would simply be using a transformer that can tolerate more abuse that it is likely to see. It would be a bit of overkill, with a corresponding overcost, as Charlie said. But it gains you nothing in terms of extra capacity for adding load, and the distribution system will not notice the difference.
Danada.
The K-Rating is a measure of the transformer's ability to tolerate the heat generated by the harmonic currents. You would simply be using a transformer that can tolerate more abuse that it is likely to see. It would be a bit of overkill, with a corresponding overcost, as Charlie said. But it gains you nothing in terms of extra capacity for adding load, and the distribution system will not notice the difference.
Danada.
ron
Senior Member
- Location
- New York, 40.7514,-73.9925
Re: K-Rated Transformer
Three downsides of using a larger K rating than needed are that:
some manufacturers design the xfmr with a reduced impedance (from standard)
have higher inrush (since they sometimes use a somewhat standard large transformer and derate it) than you might expect for the nameplate size
and are physically larger than a typical xfmr or smaller k rating.
Three downsides of using a larger K rating than needed are that:
some manufacturers design the xfmr with a reduced impedance (from standard)
have higher inrush (since they sometimes use a somewhat standard large transformer and derate it) than you might expect for the nameplate size
and are physically larger than a typical xfmr or smaller k rating.
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