Transformers- Nicole O.

A transformer is a device used to that has the ability to send electricity in high voltages and in low voltages.  A transformer also helps to distribute electricity to longer distances.  Wrapped with coils, an iron bar was used to create higher voltages. Depending on the amount of wrapped coils, ultimately determine the level of voltage. Faraday’s transformer and first generator had a “primary” and “secondary” wire, made from copper.  The primary wire gives off electric current, which creates a magnetic field. The second wire intercepts the primary field of force. This is why alternating current was considered a better method because of the voltage switch.

How Transformers Work – Ivan B.

A transformer is a device through which the voltage of a current is turned from a lower voltage (the power station) to a higher voltage (high-voltage electric lines). Transformers are generally used in Alternating Current systems to transmit power over a long distance. When electricity is transmitted with a high voltage, the current is much lower and according to the forumla (Power = Current (squared) x Resistance) and Ohm’s Law (Voltage = Current x Resistance), if the current is lower, then less power is lost to resistance, over long distance electricity transmission. The opposite to the device of a transfromer, is a step-down transfomer which converts the voltage from a high voltage (high-voltage electric lines), to a lower voltage (electricity used in homes).

How Transformers Work~Desire’ B

Basically transformers just turn down the voltage of electricity running through the wires. It starts out at a really high voltage to get it to travel farther distances, then when it reaches homes, factories, and businesses it turns down the voltage to make it safer for people to use.

It could only work with AC because the AC electrons created a chaning magnetic field around them as they coursed along that which was the key to the transformers induction.

Transformers: Matthew Harrison

Transformers basically transform one set of electricty into another form of electrcity. Transformers can be commonly fouund in alternating currents. The voltage travles through many coils which are insulated so the voltage can be created at a higher rate. The more coils there are located on a trasnformer the higher the voltage. The transformers would help Tesla’s design of the alternating current generators. These transformers made it able to send electrcity over long distance of land so that everyone would be able to use it. Micheal Farday would create this great invention in 1831.

How Transformers Work – Jonathan A.

Transformers are simply devices that can change voltage. Transformers are what made the alternating current system so efficient. Through a process called self-induction, voltage was either raised or lowered, thus allowing for the transmission of electricity over a very long distance with minmal loss in power. Companies would send extremely high voltages from a generator to a transformer which would lower the voltage to a safe amount into a home.

How Transformers work – Michael B.

A transformer works by sending electricity into a set of loops of wire, which creates a magnetic field.  The magnetic field generates electricity in another set of loops, the voltage/current depends on the number of loops.  This is a very basic explanation of how transformers work.

How Transformers Work

The transformer is a device that transform electricity form one voltage to another. The voltage would travel thought many coiled insulated wires. “The greater the number of wrapped coils, the higher the voltage would rise”(130).   It only works with alternate currents because of the magnetic field created by the swift oscillations of AC electrons. Alternate Current is like a sine graph, the way it moves up and down is the reason why the transformers works. The reason why AC became famous was because the electricity could travel longer distances without any voltage being dropped.

The transformer was first created by Michael Faraday in 1831. it was just two copper wires coiled around an iron bar. “The ‘primary’ is a copper wire that is fed electric current, generating a magnetic field. The ‘secondary’ is the copper wire that intercepts the primary’s field of force .” Th

How Transformers Work – Robert S

Transformers are relatively simple devices, made up of nothing more than some wire and a piece of iron. However, this seemingly simple device makes AC practical for the distribution of power over vast distances.

A transformer is made of two coils of insulated wire, wrapped around a piece of iron. The ratio of the amount of wire used in each coil determines how much the voltage will be raised or lowered in the transformer. If the input coil has fewer coils than the output coil, then the output voltage will be higher but the current will be lower. Likewise, if the input coil has more turns than the output coil, the output voltage will be lower.

Transformers only work with AC due to the fact that AC changes polarity 120 (60Hz -> 60 positive peaks + 60 negative peaks) times a second. During each reversal, a magnetic field is created inside the transformer, which is picked up by the output, or secondary, coil. Without the changing magnetic field, current would only be generated for a split second when the transformer was initially powered on.

Edit: Spell checking is good.

How Transformers Work – Andrew G.

One of AC currents biggest advantages over DC current was its ability to be transmitted over long distances.  For electricity to move over very long distances the voltage needs to be “stepped up” , or raised, so that there is minimal power loss.  Transformers are used to change the voltage for AC current.  They can “step” the voltage either up or down through a process called self-induction. The voltage needs to be stepped back down before it is used for domestic use or offices.

Michal Faraday created the first self-induction transformer using an iron ring and wire.  A piece of wire was wrapped around one side of the iron ring, on the other side of the ring there was another wire wrapped around the ring.  When a current is sent through one of the wires it creates a magnetic field. This field is transfered through the iron ring to the second wire which turns the magnetic field back into a current.  If there is a difference in the number of times the wires are wrapped around the iron, this will cause a change in voltage.

How Transformers Work – Stephen Iero

A transformer is a device that takes electricity of one voltage and converts it into a different voltage.  A transformer changes voltage from low to high or high to low, this procedure is referred to as Stepping.  AC (alternating current) is the only type of current that can use the transformer because back then there was no simple way of accomplishing this task.  Since the power is at such high voltage then it can be easily transported over long distances with little voltage drop along the way.  Before the electricity would be able to be used the voltage would have to be dropped for commercial and household use.

The first transformer was created by Faraday and his had two wires wrapped around an iron bar.  One of the wires was an input and the other was an output, each of these wires completed a circuit back to the iron bar.  The AC current was switched to go back and forth in order to create a magnetic field.  This created magnetic field steps up or down the voltage in the wrapped wires.