Electrical Engineering Study Material

Transformer Losses and Efficiency

All transformers have copper and core losses. Copper loss is power lost in the primary and secondary windings of a

So far, our discussion has dealt with the operation of single-phase transformers. Three-phase transformer operation is identical except that three

The current in the windings of a transformer is inversely proportional to the voltage in the windings. This relationship is

The voltage of the windings in a transformer is directly proportional to the number of turns on the coils. This

A transformer works on the principle that energy can be transferred by magnetic induction from one set of coils to

Efficiency of a transformer is the ratio of the power output to the power input, as illustrated by Equation. where

Maximum power is transferred from one circuit to another through a transformer when the impedances are equal, or matched. A

Each winding of a transformer contains a certain number of turns of wire. The turns ratio is defined as the

If flux lines from the expanding and contracting magnetic field of one coil cut the windings of another nearby coil,

A synchronous motor may be started by a DC motor on a common shaft. When the motor is brought to