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Why is it better to determine the efficiency of the transformer indirectly rather than by loading it?

It is better to determine the efficiency of a transformer indirectly through measurements and calculations because direct loading can cause overheating and damage to the transformer. Indirect methods are safer, more accurate, and do not risk the operational integrity of the transformer.


How do you calculate the current in a transformer?

By the volt metre.


What is copper loses in transformer?

Losses due to loading. As more load (more current) is put on a transformer, these losses will increase. They are often referred to as I2R (or I^2*R) losses.


What is the significant relationship of the no load loss in excitation current test in transformer?

The no load losses are the losses caused by energizing the transformer. These are constant losses, regardless of loading. This in effect tells you the efficiency of the transformer. (Power in) - (no load losses) = (Power out)


Function of no-load in transformer in a open-circuit?

To calculate the no load current from transformer & core loss is also calculated.


How do you calculate the transformer turns ratio?

For an ideal transformer, the voltage ratio is the same as its turns ratio.


How to calculate the Budget variance percentage?

how to calculate budget variance percentage?


How do you calculate percentage in bed exam in India?

how to calculate b.ed percentage


How do you calculate MVA rating of power transformer?

The product of the secondary rated current and the secondary rated voltage will give you the rated V.A of the transformer.


How can calculate Dd6 Dy11 vector group of transformer?

By calculate do you mean calculate the connections required or phasor diagrams? full question would be helpful


How can one calculate body fat percentage?

One can calculate the percentage of fat there is in their body by using the Body Fat Percentage Calculator provided by Healthy Forms which lets you calculate the percentage of fat in your body.


How do you calculate transformer voltage ratio test?

Secondary voltage / primary voltage