Electric Power Transformer Structure

All electric transformers regardless of their size, have three fundamentals parts: high voltage winding, low voltage winding and Core:

What is an Autotransformer?

An autotransformer is a transformer where a part of the winding belongs to both the primary and secondary windings of the transformer. The operating principle is the same as the conventional transformer.

What is Impedance?

Impedance (Z) shows the opposition to the flow of direct or alternating current. Impedance is the vectorial addition of resistance (R) and reactance (X). 

What is the Impedance of an Inductor?

The impedance of an inductor (also called inductance) is the measure of the opposition to a change of electrical current in this component.

Ideal Transformer

The ideal transformer is an electromagnetic device that allows to increase or decrease the alternating voltage and current while maintaining constant the power

Transformer Turn Ratio – Transformer Transformation Ratio (TTR)

The transformer transformation ratio or transformer turns ratio (K) is the quotient value obtained by dividing the number of turns of the primary winding (N1) and the number of turns of the secondary winding (N2). Then K = N1/N2.

RC High Pass Filter (passive High Pass filter)

An RC high pass filter allows only the passage of frequencies above the cut-off frequency (Fc) and eliminates frequencies above this frequency

What is the Impedance of a capacitor – Capacitive reactance?

The Impedance of a capacitor (Capacitive reactance) is the measure of the opposition to a change of the electrical current in this component. 

RC Low Pass Filter An RC low pass filter is a circuit made by a resistor and a capacitor connected in series, as shown in the image below. The RC low pass filter allows only the passage of frequencies below a particular frequency called cut-off frequency (Fc) and eliminates frequencies above this frequency. These RC […]

In a parallel RC circuit:

– The value of the voltage is the same on the capacitor and resistor.

– The value of the current delivered by the voltage source, is divided between the resistor and capacitor.

The series RC circuit. In a series RC circuit,

The current through the resistor and the capacitor is the same. The voltage VS is equal to the phasor addition of the voltage drop across the resistor (Vr) and the voltage drop across the capacitor (Vc).

Capacitor and Alternating Current (AC). Alternating current in capacitive circuits.

Unlike the behavior of a capacitor in DC, the alternating current (AC) passes more easily through a capacitor.