We carry a wide range of 110 Volt and 220 / 240 Volt Step up and step down voltage converter transformers from 50 Watts to 20,000 Watts. Please read our Transformer Purchase Guide before choosing a voltage converter transformer.
220 volt to 110-volt Step-Down converter or transformer reduces the incoming 220v or 240 Volt electricity found in most parts of the world to 110 Volt USA power. These voltage transformers enable the use of 110v USA electrical products in foreign countries where the voltage ranges from 220 Volt.
We carry a wide range of high-quality 220v to 110v Step-down transformers and Voltage converters that come with a 5 Year warranty. Please read our Transformer Purchase Guide before making your selection.
A step-down transformer is an electrical device that reduces the voltage of an alternating current (AC) power supply. It consists of a primary winding, a secondary winding, and an iron core. When an AC voltage is applied to the primary winding, it creates a fluctuating magnetic field in the iron core. This magnetic field then induces a voltage in the secondary winding, but at a lower voltage level than the primary winding.
The transformer that has a larger number of turns in the primary winding and a smaller number for the secondary winding is called a step-down transformer. So as we can see from the previous equation for the relation between the number of turns in winding and voltage if the number of turns in the primary is greater than the number of turns in the secondary, then the EMF generated in the secondary is less than the primary input.
Hence, we get a lower voltage in the secondary coil of a step-down voltage transformer. As the name indicates, the step-down transformer is used for converting higher voltage power into lower voltage power.
The appropriate size of a step-down transformer for a particular application depends on the voltage and current requirements of the load (i.e. the device or devices that the transformer will be powering).
The step down voltage converter is also known as a step down transformer. The power is lowered from 220 to 110 in a step down voltage converter. All U.S. electronic devices will need a converter to be able to function in other countries. Traveling in Europe, Asia and parts of Africa, the equipment will require special adapters. The voltage converter is able to accommodate many adapter types which are sold separately.
In case you were wondering, it is possible to operate either of these transformer types backward (powering the secondary winding with an AC source and letting the primary winding power a load) to perform the opposite function: a step-up can function as a step-down and visa-Versa.
Step-up and step-down transformers for power distribution purposes can be gigantic in proportion to the power transformers previously shown, some units standing as tall as a home. The following photograph shows a substation transformer standing about twelve feet tall:
There are applications where electrical isolation is needed between two AC circuit without any transformation of voltage or current levels. In these instances, Transformers called isolation transformers having 1:1 transformation ratios are used. A benchtop isolation transformer is shown in the Figure below.
In going from primary, V(2), to secondary, V(3,5), the voltage was stepped down by a factor of ten, and the current was stepped up by a factor of 10. Both current and voltage waveforms are in-phase in going from primary to secondary.
One consumer application of the variable transformer is in speed controls for model train sets, especially the train sets of the 1950s and 1960s. These transformers were essentially step-down units, the highest voltage obtainable from the secondary winding being substantially less than the primary voltage of 110 to 120 volts AC. The variable-sweep contact provided a simple means of voltage control with little-wasted power, much more efficient than control using a variable resistor!
Small variacs for benchtop use are popular pieces of equipment for the electronics experimenter, being able to step household AC voltage down (or sometimes up as well) with a wide, fine range of control by a simple twist of a knob.
Since three-phase is used so often for power distribution systems, it makes sense that we would need three-phase transformers to be able to step voltages up or down. This is only partially true, as regular single-phase transformers can be ganged together to transform power between two three-phase systems in a variety of configurations, eliminating the requirement for a special three-phase transformer. However, special three-phase transformers are built for those tasks and are able to perform with less material requirement, less size, and less weight than their modular counterparts.
The following photograph (figure below) shows a bank of step-up transformers at the Grand Coulee hydroelectric dam in Washington state. Several transformers (green in color) may be seen from this vantage point, and they have grouped in threes: three transformers per hydroelectric generator, wired together in some form of three-phase configuration.
Additionally, winding conductor insulation is a concern where high voltages are encountered, as they often are in step-up and step-down power distribution transformers. Not only do the windings have to be well insulated from the iron core, but each winding has to be sufficiently insulated from the other in order to maintain electrical isolation between windings.
Respecting these limitations, transformers are rated for certain levels of primary and secondary winding voltage and current, though the current rating is usually derived from a volt-amp (VA) rating assigned to the transformer. For example, take a step-down transformer with a primary voltage rating of 120 volts, a secondary voltage rating of 48 volts, and a VA rating of 1 kVA (1000 VA). The maximum winding currents can be determined as such:kVA (1000 VA). The maximum winding currents can be determined as such:
When transformers transfer power, they do so with a minimum of loss. As it was stated earlier, modern power transformer designs typically exceed 95% efficiency. It is good to know where some of this lost power goes, however, and what causes it to be lost.
Laminated cores like the one shown here are standard in almost all low-frequency transformers. Recall from the photograph of the transformer cut in half that the iron core was composed of many thin sheets rather than one solid piece. Eddy current losses increase with frequency, so transformers designed to run on higher-frequency power (such as 400 Hz, used in many military and aircraft applications) must use thinner laminations to keep the losses down to a respectable minimum. This has the undesirable effect of increasing the manufacturing cost of the transformer.
If you have special needs, please inform daelim, Daelim even has a professional on-site installation team in North America, which can allow you to complete the whole process monitoring of step-down transformers from purchase to installation in the office.
If you want to lower the voltage (HV) and current (LV) from the primary to the secondary side of the transformer, you will need a transformer step down, which is a transformer that does it and is being promoted by Daelim.
The unit of measurement is the metric equivalent to 1.75 U. 208 volts is stepped down to 120 volts before being distributed to the loads. 208V APC Symmetra and Smart-UPS 208V devices are compatible with them.
Many pieces of equipment are needed before installing a step-down transformer. The most generally used transformer is the step-down transformer, which converts 220-volt electricity, which can be found in many regions of the world, to the 110-volt electricity needed by many electronic devices.
In order to wire step-down transformer, follow the steps outlined below:If the transformer to be fixed has a high amperage rating, remove the cover from the terminal connection box and inspect the schematic.
Transformers are used to change AC voltage levels, such transformers being termed step-up or step-down type to increase or decrease voltage level, respectively. Transformers can also be used to provide galvanic isolation between circuits as well as to couple stages of signal-processing circuits. Since the invention of the first constant-potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electric power. A wide range of transformer designs is encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume, to units weighing hundreds of tons used to interconnect the power grid.
One example is in traction transformers used for electric multiple unit and high-speed train service operating across regions with different electrical standards. The converter equipment and traction transformers have to accommodate different input frequencies and voltage (ranging from as high as 50 Hz down to 16.7 Hz and rated up to 25 kV).
A transformer can be produced by placing the windings near each other, an arrangement termed an \"air-core\" transformer. An air-core transformer eliminates loss due to hysteresis in the core material. The magnetizing inductance is drastically reduced by the lack of a magnetic core, resulting in large magnetizing currents and losses if used at low frequencies. Air-core transformers are unsuitable for use in power distribution, but are frequently employed in radio-frequency applications. Air cores are also used for resonant transformers such as Tesla coils, where they can achieve reasonably low loss despite the low magnetizing inductance.
Building regulations in many jurisdictions require indoor liquid-filled transformers to either use dielectric fluids that are less flammable than oil, or be installed i