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If it doesn't, you don't have a transformer. The core is where the magnetic flux will pass, which induces voltage on the secondary (voltage applied to the primary winding induces a magnetic flux in the core, which induces a voltage on the secondary winding); If the core is not passed through one coil, it will not induce a voltage in that winding.

Leakage flux outside the core can result in some inductive coupling, but the job of the core is to couple the primary winding to the secondary winding.

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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.


How could you convert step up transformer into step down transformer?

Injecting power into the higher voltage winding of a transformer will make it act as a step down transformer; injecting power into the lower voltage winding will make it act as a step up transformer. A transformer can be used both ways.


Are the primary and secondary coils in a transformer physically linked or is there space between the two?

Both the primary and secondary wires have an insulated coating that allows them to be wound over top of each other on an iron core. The AC current flowing in the primary creates a magnetic field in the iron that then induces a voltage in the secondary based on the turns ratio between the primary and secondary coils.


What is off nominal tap ratio off transformer?

It occurs when Vbase rotio of both side of the Transformer is not the same as the Rated Voltge rotio.


What is the amp rating of 100va transformer?

The amp rating for a 100VA transformer will vary depending on the actual voltage of the transformer. Transformers have both a primary and a secondary voltage.

Related Questions

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 would happen if the number of coils on both sides of the transformer were the same?

This is what is known as a 1:1, or ISOLATION Transformer. There is no change to the Voltage or Current of the input, but this does provide a separation between the input and output of the transformer. This separation is sometimes required for safety purposes, especially in a medical environment.


Will the output voltage be stepped up the same canceled or stepped down compared to the input voltage if both coils of a transformer have the same number of turns?

If both coils of a transformer have the same number of turns, the output voltage will be the same as the input voltage. This is because transformers operate on the principle of electromagnetic induction, where the voltage ratio is directly proportional to the turn ratio. With equal turns on both the primary and secondary coils, there is no stepping up or down of voltage; the output voltage is effectively "canceled" to match the input voltage.


How do you establish no of turns in both high voltage and low voltage windings of a 3 phase transformer?

Through the use of the basic transformer voltage equation.


What difference's between potential transformer and voltage transformer?

Both are same. This is an instrument transformer used for metering & protections.


How could you convert step up transformer into step down transformer?

Injecting power into the higher voltage winding of a transformer will make it act as a step down transformer; injecting power into the lower voltage winding will make it act as a step up transformer. A transformer can be used both ways.


What or Which type of transformer can serve as both a ratio device and an isolating device?

Instrument Transformer


Why the capacitive voltage transformer and voltage transformer both are used in a substation?

three phases


How can you tell if a transformer is a set up or set down?

The same transformer can be both. It must be operated at the correct voltage on both windings.


Are the primary and secondary coils in a transformer physically linked or is there space between the two?

Both the primary and secondary wires have an insulated coating that allows them to be wound over top of each other on an iron core. The AC current flowing in the primary creates a magnetic field in the iron that then induces a voltage in the secondary based on the turns ratio between the primary and secondary coils.


Why you require two secondary coils for lvdt?

Two secondary coils are used in a Linear Variable Differential Transformer (LVDT) to provide differential measurement of displacement. This configuration allows for a balanced output that cancels out any common-mode noise and improves sensitivity. The phase difference between the signals from the two coils enables the LVDT to determine both the magnitude and direction of the displacement accurately. This design enhances the overall performance and reliability of the sensor in various applications.


What is the same on both sides of any transformer?

frequency. KVA is also same in both side of a transformer!!! KVA means Kilo Volt Ampere.