Table of Contents
What is transformer explain with diagram?
Solution : A transformer is a device used for varying AC voltages. It works on the principle of mutual induction. Working : As the current through the primary varies, the magnetic flux linked with the secondary also varies. As a result, alternating emf of the same frequency is induced across the secondary.
What are the parts of transformers?
There are three basic parts of a transformer:
- an iron core which serves as a magnetic conductor,
- a primary winding or coil of wire and.
- a secondary winding or coil of wire.
What is transformer full detail?
A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.
What is the main part of transformer?
There are four primary parts to the basic transformer. The parts include the Input Connection, the Output Connection, the Windings or Coils and the Core. Input Connections – The input side of a transformer is called the primary side because the main electrical power to be changed is connected at this point.
What is X R ratio of transformer?
First, X/R ratio is simply the ratio of the system reactance to the system resistance, looking back to the power source from any point in a power circuit, assuming that a short circuit is applied to the system at that point. It is another way of stating the power factor of the source system.
What is the SI unit of transformer?
Transformer’s operation The total number of field lines is called a magnetic flux (Φ). The SI unit name for magnetic flux is weber and its symbol is Wb (1 Wb = 1 Vs).
What is Z in transformer?
The percent impedance (%Z) is the percent of the rated load impedance possessed by a transformer. The percent impedance is important in that it allows us to: Calculate available fault currents (both individual and bank).
What is r x ratio?
The X/R ratio is the amount of reactance X divided by the amount of resistance R, which also happens to be the Tangent of an angle created by reactance and resistance in a circuit.
What is K in transformer?
K-factor is a weighting of the harmonic load currents according to their effects on transformer heating, as derived from ANSI/IEEE C57. 110. The higher the K-factor, the greater the harmonic heating effects. There are many different loads such as computers, solid state devices and motors which cause a non linear load.
What is bil in transformer?
What is BIL and how does it apply to transformers? BIL is an abbreviation for Basic Insulation Level. Insulation levels in electrical equipment are characterized by the withstand voltages used during the impulse test.