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the efficiency is maximum in a transformer when no load loss is equal to load loss.

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14y ago

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What is maximum efficiency condition in distribution transformer?

The maximum efficiency condition in distribution transformer is said to be occurred when iron loss = copper loss


What is the percentage load at which maximum efficiency occurs for the single phase transformer?

For a single-phase transformer, maximum efficiency typically occurs at around 50-70% of the rated load. Operating the transformer at this load range minimizes losses and improves efficiency. Going below or above this range can decrease efficiency and increase losses in the transformer.


Why are distribution transformers frequently designed to develop maximum efficiency at loads that are somewhat lower than rated value?

It is always desirable to run any equipment or device at maximum efficiency for that matter, not only the power transformer. Power transformer maximum efficiency occurs when copper loss is equal to iron loss. (or no load loss equals to load loss). This does not necessariliy mean that maximum efficiency occurs at maximum or full load. Generally the maximum efficiency occurs at relatively less than full load of the transformer.


What will happen if iron losses and copper losses are equal for any transformer?

Well, isn't that a happy little coincidence! If iron losses and copper losses are equal in a transformer, it means that the transformer is operating at its maximum efficiency. This balance allows the transformer to work smoothly and effectively, creating a harmonious flow of energy. Just like when all the colors blend together perfectly on our canvas, creating a beautiful masterpiece.


What is the efficiency of a transformer?

The "all day" efficiency of a transformer is defined as the ratio of energy out/energy in for a given all day cycle.


What is the condition for maximum efficiency of a 1-φ transformer?

The efficiency of a simple transformer is limited by resistive loss in the wiring, and by hysteresis (magnet related) losses in the transformer core. You may limit the resistance loss by using superconductors at very low temperatures. But not practical for most situations. (Yet!)


Can you increase the efficiency of transformer by increasing the cooling of transformer?

nope


How to calculate transformer core loss and iron loss?

there are several losses in a transformer that prevent it from attaining 100% efficiency. One is core loss, which can be divided into Hysteresis losses, Eddy currents and Magnetostriction loses. see for more details http://en.wikipedia.org/wiki/Transformer#Energy_losses


What is the maximum transformer rating for distribution transformer?

100MVA


How do you find the maximum amp draw on a step up transformer?

It depends on the load. A good transformer has over 90% (some as high as 99%) efficiency. So the power drawn by it is a function of the power in the load, plus a small amount due to losses in the transformer.


What will happen to the efficiency of a transformer if the iron core is removed?

its efficiency will decresed.


Why the efficiency of a power transformer increases with a decrease in Load at constant PF?

Maximum efficiency of a power transformer occurs when copper loss equals to iron losses. Decrease in current does not result in increase in efficiency unless the copper loss was more than iron loss and the decreased current made the copper loss is reduced and became equal to iron loss at some point.