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A welding transformer uses the alternating current supplied to the welding shop at a high voltage to produce the low voltage welding power
Lurline Lemke
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∙ 13y agoA three phase transformer is used to step-up or down three phase voltages. All the 3 phase windings can be contained in one transformer, which is cheaper but usually limited to lower power situations, and when in fails the whole thing would need to be taken out of service. In larger applications, such as distribution, they usually use three separate single phase Transformers that have higher power ratings due to the fact that they can dissipate heat better. These are more expensive implement but cheaper to maintain.
Wiki User
∙ 14y agoA transformer relies on electromagnetic coupling to transfer power between two electrically isolated circuits. The transformer may step-up or step-doen the voltage or even perform 1:1 transformation for isolation purposes.
Wiki User
∙ 10y agoA transformer works through mutual induction, whereby a changing current in one coil induces a voltage into a second coil.
The transformer winding (coil) connected to the supply is termed the primary winding, while the winding connected to the load is termed the secondary winding, and it is the ratio of the turns in each of these winding that determines whether the transformer is a step-up transformer or a step-down transformer. For example, if the secondary winding has twice as many turns as the primary winding, then the secondary voltage will be twice the primary voltage.
The secondary current, which is determined by the load, determines the primary current by the reciprocal of the turns ratio. So, in the above example, the primary current will be twice the value of the secondary current.
Wiki User
∙ 11y agoTransformers work on the principle of mutual induction, whereby a changing current in the primary winding creates a changing magnetic field that links with the secondary winding, inducing a (secondary) voltage into that winding.
Wiki User
∙ 11y agoWhether a transformer increases or decreases the input voltage depends on the number of coils on each side of the transformer .
thats the answer believe me its right !!!!!!!! ____
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What is the difference between a transformer and a rectifer?
A transformer is used to change the value of a voltage applied to the transformer's primary winding to a different voltage value taken from the transformers secondary winding. A rectifier is used to change an alternating current value to a direct current value.
The incoming voltage from the current source to the transformer is called what?
The incoming voltage from the source to the transformer is called primary voltage.
Why ac current is used in a transformer?
AC current or DC current can be used in transformers. A transformer is made of two coils of wire, the input coil induces a current into the output coil. Transformers change the voltage either up (step up transformer) or down (step down transformer). The amount of change in voltage is dependent solely on the number of windings in both coils in the transformer. DC transformers work exactly the same way AC transformers do.
What are the output voltage and current of a transformer determined by?
The secondary (output) voltage is determined by the primary voltage and the turns ratio of the transformer. The secondary current is determined by the secondary voltage and the load resistance.
What is the difference between a current transformer and a voltage transformer?
A current transformer step downs the current in a power circuit to a lower amperage. A voltage transformer steps down the voltage in a power circuit, typically to 110 volts AC for residential and business use.
Can a constant dc current can induce a steady state voltage in a transformer?
No, the current has to change for a voltage to be induced in the transformer.
What is the purpose of constant voltage transformer?
The term 'constant voltage transformer' is used to differentiate the operation of transformers that are intended to change voltage levels, from those intended to change current levels -a current transformer (CT), for example, is termed a 'constant current transformer'.
What is a device used to change voltage of an alternating current?
A transformer.
Can you use transformer with your 110 aircon?
A transformer can be used to change the voltage to an appliance. The voltage rating of the transformer should be right for the voltages used, and the current rating of the transformer should not be less than the current drawn by the equipment.
What is the difference between a transformer and a rectifer?
A transformer is used to change the value of a voltage applied to the transformer's primary winding to a different voltage value taken from the transformers secondary winding. A rectifier is used to change an alternating current value to a direct current value.
What will happen to frequency of current when voltage is changed using a step up or step down transformer?
Frequency does not change when you use a step-up or step-down transformer. Only current and voltage is changed.
A transformer can only the voltage of an alternating current?
A transformer can only increase or decrease the voltage of an alternating current, and it is called step-up transformer or step-down transformer accordingly.
Is transformer side interchangeable?
yes,we can change the transformer side in transmission line as use of high current or high voltage in output.
The incoming voltage from the current source to the transformer is called what?
The incoming voltage from the source to the transformer is called primary voltage.
What is the incoming voltage from the current source to the transformer called?
the incoming voltage from the current source to the transformer is called primary voltage.....
What is the main different between the power transformer and voltage transformer?
Voltage Tarnsformer transforms only voltage. While power transformer transforms both voltage and current.
Why ac current is used in a transformer?
AC current or DC current can be used in transformers. A transformer is made of two coils of wire, the input coil induces a current into the output coil. Transformers change the voltage either up (step up transformer) or down (step down transformer). The amount of change in voltage is dependent solely on the number of windings in both coils in the transformer. DC transformers work exactly the same way AC transformers do.
