How To Calculate Power Loss In Transformer. Hence we can write it as Pc. η P out P in 1 η P o u t P i n 1 Or since the input is the output plus losses η P inP loss P in 1 P loss P in η 1 P loss P out P loss 2 η P i n P l o s s P i n 1 P l o s s P i n η 1 P l o s s P o u t P l o s s 2 The transformer losses consist of copper losses and core losses.
What you need to find out is the efficiency of the transformer and how heavily loaded it is. Gar 500 kW 05 loss Fine for excess losses. Kva L Load kVA.
Its technically a step down 277 to 120240 transformer but we have it hooked up the other way turning our 120208v to 277v for office lighting.
Im trying to figure an efficiency or power loss to include in an energy audit type write up dealing with savings to be had if the transformer was removed from the system. Open circuit test vs short circuit test. Transformers are in general highly efficient and large power transformers around 100 MVA and larger may attain an efficiency as. An ideal transformer would have no losses and would therefore be 100 efficient.
