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AUXILIARY LOSSES IN POWER TRANSFORMER

AUXILIARY LOSSES IN POWER TRANSFORMER

Beside Load loss and No load loss, another type of loss concerning substation transformers and are usually applicable to power transformers that are rated 5000kVA and above is the auxiliary loss. Auxiliary loss is a type loss that represents the electrical load of the transformer auxiliaries. This are the one that are utilize to operate the cooling fans and pumps of the transformer as discussed in our Load Loss topic. Although some utilities disregard this due to the fact that it does not impact the system’s loss in comparison to the Load and No-load losses, still technically they are still considered as losses. On the other hand, some electric utilities installs meters to properly account the power used in operating its substation auxiliaries thus, this can no longer be considered as losses.



Cooling Fan for a Power Transformer
OTHER FORM TRANSFORMER LOSSES
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