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## Which losses in transformer does not depend on the loading of the transformer?

What Are No-load Losses? No-load losses are caused by **the magnetizing current needed to energize the core of the transformer**, and do not vary according to the loading on the transformer. They are constant and occur 24 hours a day, 365 days a year, regardless of the load, hence the term no-load losses.

## Which loss in transformer is constant?

**Iron Losses (P _{i})** in a Transformer

These losses occur due to alternating flux set up in the core. In a transformer, flux set up in the core remains constant from no load to full load. Hence these power losses are independent of load and also known as constant losses of a transformer.

## Which of the following losses in a transformer is constant from no load to full load?

Explanation: **Hysteresis and eddy current losses** together called as core-loss in a transformer. These losses remain constant for constant voltage and frequency applied to a transformer, these components remain same irrespective of load. 2.

## Which of the following loss occurs under load as well as no load condition of transformer?

**Dielectric losses**

Some amount of power is lost in the insulating materials, especially in the transformer oil. Hysteresis loss and eddy current loss together accounts for 90% of no-load losses while stray eddy current losses, dielectric losses and copper loss due to no-load losses account for the remaining 10%.

## Which losses does not depend on load?

**Iron losses** do not depend on the load, iron losses remain constant for any load. Therefore iron losses are considered as constant losses. Copper losses vary as square of load current and these are considered as variable losses.

## Which losses in transformer is zero at no load?

When the transformer is operating at no load, the **secondary winding** is open-circuited, which means there is no load on the secondary side of the transformer and, therefore, current in the secondary will be zero.

## What losses are constant losses?

**Core or iron losses**

Iron loss is a constant loss.

## What are constant losses?

As iron core of the armature is rotating in magnetic field, some losses occurs in the core which is called core losses. Normally, machines are operated with constant speed, so these losses are almost constant. These losses are categorized in two form; **Hysteresis loss** and Eddy current loss.

## Which losses are known as constant losses and why?

Out of these losses core loss is constant whereas copper loss is variable. The reason behind core loss being constant is that **hysteresis loss** and eddy currentloss both are dependent on the magnetic properties of the material used in the construction and design of the core of the transformer.

## Which loss varies with load in transformer?

Explanation: As we know, the transformer has primarily two types of losses Iron loss and **copper loss**. Iron loss is always constant, whereas copper losses are varying with a load. Both hysteresis loss and eddy current loss do not depend upon load current, which means iron losses are constant with varying load.

## What is no load losses percentage in transformer?

Core and coil losses

These losses are virtually constant from no-load to full-load, and for the typical 150 C rise transformer are about **0.5% of** the transformer’s full-load rating.

## How can transformers reduce no load loss?

Due to the constantly changing magnetic fields, there is a loss of current in the core. One easy solution for how to reduce eddy current losses in the transformer is **to make the core by stacking thin sheets together**. This will decrease the eddy current and hence the losses made by it too.