What is transformer K factor?
K factor is defined as a ratio between the additional losses due to harmonics and the eddy current losses at 60Hz. It is used to specify transformers for non-linear loads. Transformers with a rated K factor of 4, 9, 13, 20 are available. … That is the trade-off to be able to handle higher harmonic factors.
What is K factor in power system?
K-Factor determines the total harmonic current which a transformer can withstand without going beyond its specified temperature threshold limits. Under normal circumstances the value of K-Factor ranges from 1-50. It is the load that determines the K-Factor of the specific transformer.
What is K-rated?
K-rated transformers are manufactured with heavier gauge copper and a double sized neutral conductor and have higher magnetic to resistive properties than a standard transformer which enables them to handle the heat generated by harmonic currents.
What is the use of auto transformer?
Autotransformers serve the purpose buck and boost transformer as it functions to increase or decrease the supply voltage by a minimum amount. These are the excellent replacements for full transformers in case the voltage ratio is fairly small lower than four in between the primary and secondary.
What is the formula for K transformation ratio?
Detailed Solution. Transformation ratio of transformer is given by K = V2/V1 = E2/E1 = N2/N1.