Effect of load reduction on the number of installed fins/radiators.
Effect of load reduction on the number of installed fins/radiators.
(OP)
Hi,
I'm overseeing the installation of a power transformer. At full-load, this is a 7.5 MVA 30/6.6 kV transformer. However, the prospective load is roughly 2.5 MVA. How can I go about calculating the copper losses of this transformer if I have the winding resistances. Is it correct to say, copper losses=I2R+I2R (primary and secondary losses)?
Your assistance will be highly appreciated.
Regards,
I'm overseeing the installation of a power transformer. At full-load, this is a 7.5 MVA 30/6.6 kV transformer. However, the prospective load is roughly 2.5 MVA. How can I go about calculating the copper losses of this transformer if I have the winding resistances. Is it correct to say, copper losses=I2R+I2R (primary and secondary losses)?
Your assistance will be highly appreciated.
Regards,






RE: Effect of load reduction on the number of installed fins/radiators.
Generally all the radiators and/or fins would be installed. The fans may not all be installed.
Bill
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"Why not the best?"
Jimmy Carter
RE: Effect of load reduction on the number of installed fins/radiators.
I left out some piece of info. Not all fins can be installed due to repair issues. It is a relatively old transformer and the fins are rusted. Sandblast and painting introduces leaks (we test one). So what you are saying is that the copper losses will be a ninth of the losses at full load?
RE: Effect of load reduction on the number of installed fins/radiators.
Bill
--------------------
"Why not the best?"
Jimmy Carter