answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: Why the transformer size decreases when frequency increased?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How input frequency to the transformer influences its physical dimension when using a step down transformer is used using as as a step-up transformer?

In general, the lower the frequency of operation, the more weight must be added to the core laminations to avoid magnetic field saturation. This increases the size and weight of the transformer as the frequency decreases.


What is the relationship between frequency and the size of a transformer?

Basically the characteristics of a transformer depends on the impedance(resistance) and on the coupling of its primary and secondary coils. The impedance of a coil depends on the frequency, as the frequency increases you need less volume of iron core and less number of turns in the coil for a given impedance, then reducing the size of the transformer.


What happens to the gravity as the distance between the objects is increased?

The size of the force decreases. It is inversely proportional to the square of the distance.


As the wavelength of a wave increases on the electromagnetic spectrum what happens to the energy of the wave?

As a wavelength increases in size, its frequency and energy (E) decrease.


How component size decreases when frequency decreases?

The impedance of a component (inductor or capacitor) will change with frequency - resistor impedances will not. Inductor impedance - j*w*L Capacitor impedance - 1/(j*w*C) L = inductance, C = capacitance, j = i = imaginary number, w = frequency in radians The actual inductance and capacitance does not change with frequency, only the impedance.


In transformer if frequency are reduce then what happen?

t's basically a matter of the magnetizing inductive reactance which is inversely proportional to frequency. You want to keep the magnetizing current low to minimize power loss and avoid saturating the core. The higher the frequency, the lower the required inductance for a given inductive reactance and magnetizing current, thus the smaller the required core and/or number of turns on the windings.Magnetizing current is a normal parasitic byproduct of the transformer inductance and the applied voltage level and frequency. The amount of power that can be transferred through a transformer is usually limited by the transformer winding resistances and is unrelated to the magnetizing current. Thus core size goes up at higher power levels due to larger required wire size, not due to any core limitations.


What is the use of core transformer?

500w iron core transformer .that kind of size


Why do the atomic size decreases in periods rather than to be increased due to proton repulsion that leads to nucleus to expansion?

As we move across the period, there is an increase in the atomic number i.e., there is an increase in the number of protons inside the nucleus. This means, there is more nuclear force. This nuclear force pulls the electron orbits as close as it can. thus, the radius of the atom decreases. Hence the atomic size decreases.


What does a toroid coil do in electronic ballast?

For oscillating low frequency current to high freq in range above 20khz so that inductor size decreases without humming noise of 50hz


What happens to the current as the voltage is increased by the step up transformer?

Compare a transformer to a balancing act. Both side need to remain equal.The primary side of the transformer is the supply side and the load is connected to the secondary side of the transformer.The load governs the current of the secondary side of the transformer and the voltage of the secondary side must match the voltage that the load required to operate.The ratio of the transformer will determine what the voltage of the secondary side is as compared to the voltage that has to be applied to the primary.The current of a step up transformer will be higher on the primary side that that of the secondary.Apply voltage and current to this concept and you will see that the transformer will remain balanced.The size of the transformer is always calculated from the secondary side of the transformer and the value is written in VA or KVA where V = voltage and A = amperage. Power factor is also taken into consideration when calculating the size of the transformer to be used.


What decreases across the periodic table?

Atomic size decreases across a period


What are the factors affect the magnitizing inrush current in power transformer?

1- residual flux existing before enegizing the transformer . 2- size of transformer . 3- size of power system. 4- type of magnetic material of the core. 5- the method of energizing the transformer.