K-RATED ISOLTION TRANSFORMERS
K factor is a value used to determine how, much harmonic current a transformer can withstand without texceeding its maximum temperature level. Huge numbers of single phase loads like computer also creates a non linear harmonic. A standard transformer cannot handle the harmonics due to non linear loads. When harmonic enter into the transformer the coregets saturated, as result it produces lot of heating causing the failure of the transformer. K Rated transformers are specially designed to with stand this non linear harmonic. K rating differs according to the harmonics level like K-1,K-4,K-7,k-13,andK-20
