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A transformer is made from two or more coils of wire wound around an iron core. When some voltage is applied to one of the coils it magnetizes the iron core, which induces a voltage in the other coil. There is a turns ratio where of the two sets of windings determines the amount of voltage transformation.

a step up transformer makes a voltage higher than before it does this by having more turns on the secondary coil then the primary coil.

a step down transformer makes a voltage lower then it was before it reaches it, it does this by having less turns on the secondary coil then the primary coil.

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โˆ™ 2011-05-23 08:27:54
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Q: How does a step-up and step-down transformer work?
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Related questions

How a transformer is very useful in ac supply?

Transformer is the only device which is capable to stepup or stepdown an ac signal. That's why its used widely in ac supply.


Why are transformers necessary?

Transformers are necessary to stepup or stepdown voltage levels so that transmission of power is convenient. without stepup/stepdown voltage level according to our requirement losses will be very high and transmission and usage of power is not feasible.


How do the transformer increase the voltage?

the transformer voltage can be increased simply by connecting the stepup transformer in series to it. the stepup transformer is nothing but its secondary windings should be more when compared to its primary windings.


What type of transformer is found outside a residential house?

Stepdown Transformer.


Can a single phase 110V-240V step-down transformer work in reverse for 180V to 240V stepup?

No


Does 110 volts cost more if uses stepdown trasformer?

If you have to pay for the stepdown transformer, yes. If that is provided free, there is a small loss of energy in the transformer, maybe about 5%, and it depends on whether the meter is installed before or after the transformer.


What is 660VA for stepdown transformer capacity?

the maximum power it will supply


How do you convert 220 Volt into 110 volt output?

You would use a stepdown transformer.


What is the function of the step-up transformer?

A stepup transformer increases the voltage to decrease loss of energy due to long distance transmission..


What is the main function of a step up transformer?

Step up transformer is a transformer (tf) which is used to step up the voltages.for example if we have low voltages in the generating side then we mostly use stepup transformer there.


What is the difference between stepdown and stepup transformers?

A step-down transformer produces a secondary voltage that is lower than its primary voltage, while a step-up transformer produces a secondary voltage that is higher than its primary voltage. The primary voltage is the voltage applied to the transformer, whereas the secondary voltage is the voltage supplied by the transformer. It's the transformer's turns ratio that determines whether it is a step down or step up transformer: i.e. the ratio between the primary and secondary windings. If there are less turns on the secondary winding, then it's a step down transformer; if there are more turns on the secondary winding, then it's a step-up transformer.


What does a step up transformer do at a powerplant?

It is used to step up the voltage in order to transmit it a long distance where it goes into a stepdown transformer and then into your home .


Can a 240V - 110V stepdown transformer be reversed to take a primary load of 180V to secondary 240Volts?

No


What happens if a 208VAC primary voltage is connected to a 240VAC stepdown transformer to 208VAC?

The transformer will act as a step down transformer in the ratio of 240 to 208. This will reduce the 208 input to 180.


Why not stepup transformer is not used in rectifiers?

Rectifiers turn A/C into D/C, but transformers can only run on A/C.


What device changes electricity from high voltage with low amps to low voltage with high amps?

stepdown transformer


How do you go from 480 volts to 240 volts?

a stepdown transformer is used to reduce the voltage and limit the available amperage


How many primary turns and secondary turns in 12 volt 1 amps stepdown transformer?

Depends on what the voltage is going from - and to.


What kind of transformer do i use to run LED?

A step-down transformer U really don't need a step up or stepdown transformer You need a source capable to run your LED it can be a swithcing power supply for istance a battery


What is transformer w?

Transformer is a electric device which it can be used for to transfer the ac current one circuit to another i.e. To reduces voltage and without frequency changing. Many types of transformer available in various purpose i.e. Stepup transformer, stepdowntransformer ,autotransformer ,,,,,,,etc answered by arivukkarasu.a


What is stepup transformer?

A step-up transformer produces a voltage across its secondary winding which is higher than its primary winding. The secondary winding is connected to the load, while the primary winding is connected to the supply.


What are some transformer types?

Some basic types of transformers are: Step up and Stepdown Transformer, Power Transformer, Distribution Transformer, Uses of Distribution Transformer, Instrument Transformer, Current Transformer, Potential Transformer, Single Phase Transformer, Three Phase Transformer.


A stepup transformer has 100 turns on the primary coil and 500 turns on the secondary coil If the primary voltage is 120 volts what will be the secondary voltage?

600 volts.


Is there a way to install a 120V light on a 277V circuit?

no ----------------------------------------------------------------------------------- Stepdown transformer. More expensive than buying the correct light fixture. Y-THINK-Y


How many output amps is a 150 kva transformer?

A 150kVA transformer, stepdown from 4160V to 600V, 3 phase, will have 20.8A on the primary side and 144.3A on the secondary side assuming the TX is 100% efficient, they are usually 2-3% losses to noise and heat etc.