Electric Machines Basics

Devices used in various industrial and manufacturing processes to convert between electrical and mechanical power.

A rotating device that converts mechanical power into electrical power.

The basic source of mechanical power, typically a steam or hydraulic turbine.

A static device that transfers AC electrical power between circuits, often changing voltage.

Alternating Current power; the type of electricity frequently used in widespread distribution.

Energy lost during the transmission of electricity, often related to high currents.

A static device that transfers AC electrical power between circuits, often changing voltage.

A transformer uses a mutual magnetic field to induce a voltage in a secondary winding from a primary winding.

A transformer that increases voltage from the primary to the secondary.

A transformer that decreases voltage from the primary to the secondary.

A transformer with equal primary and secondary voltages, used for isolation.

A transformer designed for low voltages and low power applications.

A transformer designed for high voltages and high power applications.

A transformer with a core made of highly permeable iron or steel alloy to enhance magnetic linkage.

A static device that transfers AC electrical power between circuits, often changing voltage, by using a magnetic field.

Used in various electrical circuits, from low-power electronics to high-voltage power systems, and in communication and electronic systems across different frequencies.

Crucial in AC power systems for generating power at an economical level, transmitting it efficiently at high voltages, and utilizing it at convenient distribution voltages.

Used in various electronic applications for tasks like connecting microphones and loudspeakers, and in interstage connections of circuits.

Understanding transformer circuits is important for both electronic and power systems because it helps understand electromechanical energy conversion devices.

A device that doesn't involve moving parts.

The material connecting the coils in a transformer allowing energy transfer through a magnetic field.

A transformer where the magnetic circuit is non-magnetic, mainly used in radio devices and testing instruments.

A transformer where windings are wound around the legs of a rectangular magnetic core.

A transformer where windings are wound on the central leg of a three-legged core.

Magnetic flux that doesn't link both windings in a transformer, though small, it affects performance.

Bringing coils closer together or winding windings in concentric pattern (core-type) or subsections (shell-type) to lessen leakage flux.

The winding carrying the lower voltage in a transformer.

The winding carrying the higher voltage in a transformer.

Coils wound on top of each other in a core type transformer to reduce leakage.Coils wound one inside the other.

Subsections wound like pancakes in a shell-type transformer to reduce leakage.

Core-type is better for extra-high voltage (EHV) due to better insulation; shell-type offers better mechanical support.

The core of a transformer is made of thin sheets of metal to reduce energy losses.