edison123
Electrical
- Oct 23, 2002
- 4,460
We are specing a 2 MVA, 6.6 KV/ 433 V, 50 Hz dry type (not resin cast) AN cooled IP 33 enclosure indoor transformer. Since it is a competitive market, I know OEM's cut corners by amping up the current density and we end up with a hot transformer with a much reduced life.
For class B temperature rise (120 deg C maximum at rated load), what should we spec the current density as? What should be the recommended copper and iron losses at this rating?
Dear prn - I seek your valued advice.
Muthu
For class B temperature rise (120 deg C maximum at rated load), what should we spec the current density as? What should be the recommended copper and iron losses at this rating?
Dear prn - I seek your valued advice.
Muthu