# What is the K factor in auto transformer?

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## 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.

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