Electric transformers are defined as inductively coupled electromagnetic devices that pass on electrical energy between circuits. Every piece of equipment that is powered by electricity relies on a power transformer to convert currents of electricity into a suitable voltage. Furthermore, current transformers are capable and necessary for energy storage and transportation in power grids and power lines.

Electronic transformation is a necessary process for countless applications. Because of this, electric transformers are available in countless configurations. A few examples of these configurations include pulse transformers, zig zag transformers, toroidal transformers, step up and step down transformers, and auto transformers. Transformers are capable of patterning, translating, isolating, increasing. and decreasing electrical currents of varying power levels to ensure that the voltage safely meets the requirements of the equipment.

Manufacturers are able to fabricate electric transformers in a wide range of configurations in order to effectively work with all types of electric transformation applications. Transformers can come in various sizes—from a thumb sized transformer in a lamp or a microphone, to a large transformer at a power plant. Low voltage transformers convert an electrical current into a voltage that is appropriate for appliances such as small electronic devices and dimmer lights.

High voltage transformers, on the other hand, are used in applications such as transmitting electricity from one power facility to another, as well as its points of consumption. Most configurations of transformers can be classified as isolation transformers, due to their ability to regulate electric transmission by way of induction. Other transformers are known as 3-phase transformers, which use three phases to convert electricity.Read More…

Leading Manufacturers

Triad Magnetics

Perris, CA | 851-277-0757

MCI Transformer Corporation

Babylon, NY | Orange, MA | Willits, CA | 800-624-8726

Lenco Electronics, Inc.

McHenry, IL | 815-344-2900

Electric transformers can not only change the voltage of electrical currents, but also isolate different parts of a current. Auto transformers transfer electricity through conductors that are in contact with one another, and therefore are not isolated from either the load circuit or the source.

Electric transformers can come in various sizes. They can be small enough to fit into a household appliance, or large enough to be fenced in an entire power facility. When there is a difference in voltage between a power supply and an electric device, electric transformers are essential. If the voltage is too high or too low, it can lead to serious problems. Using a voltage that is too high can cause the device to fail, if not destroy it entirely. More severe results of excessive voltage include fire or electric shocks. Devices can also fail due to a deficiency of voltage.

Instrument transformers, in addition to current transformers, are capable of accurately gauging and monitoring voltage levels as electricity is transferred through the transformer’s primary and secondary coils. Step down transformers feature fewer secondary coil windings, and convert higher voltages to lower voltages. Step up transformers do the opposite, as they feature a higher number of windings in their secondary coils.

Torodial transformers are ring-shaped, and are known for their space efficiency and their ability to reduce electromagnetic interference. Its inductors regulate the amount of AC flow into an electrical device, and also reduces high frequency noise. In an isolation transformer, the primary and secondary coils are not connected. They disconnect two circuits and allow AC power to move between two devices while the two circuits remain separated. Inverters are able to convert DC voltage, or direct current voltage, to AC, or alternating current voltage.

Pulse transformers are used to create electrical surges, or pulses, that are utilized in applications such as radar communication, particle acceleration, to camera flashes. Zig zag transformers are 3-phase transformers that are used for designated purposes such as regulating harmonic currents, and providing earthing for ungrounded electric systems.

Electric transformers are made up of two sets of windings connected by a magnetic field. At the core of a transformer is a compound made up of ferrite or iron, or a laminated core surrounded by copper coils. The two coils are known as primary and secondary coils, both of which serve as conductors. The primary coil produces a magnetic field around the conductor upon receiving AC voltage. The magnetic field then activates the secondary coil, which changes the voltage and transmits the electricity.

The number of windings directly determines the voltage that is transmitted through the magnetic field. The voltage level depends on the ratio of windings in the primary coil to that of the secondary coil. A step down transformer, for instance, will not have as many windings in its secondary than its primary, while a step up transformer will have fewer windings in its primary than its secondary. Finally the newly converted electrical energy is moved to the load center, where the rest of the electrical process is carried out. The number of primary windings a transformer possesses determines the transformer’s size and its expense.

Electric Transformer Informational Video