What is the flux of transformer?

Flux is magnetic flux or a magnetic field created in the iron core of the transformer by the AC current flowing in the primary winding. A constantly changing magnetic field created by the AC applied to the primary is the means by which an AC voltage and current is induced in the secondary winding of the transformer.

What is the use of phasor diagram in transformer?

Phasor Diagram of Transformer on Inductive Load Induces emf E1 and E2 lags the flux by 90 degrees. The component of the applied voltage to the primary equal and opposite to induced emf in the primary winding. E1 is represented by V1′.

What do you mean by leakage flux in a transformer?

Leakage flux is defined as the magnetic flux which does not follow the particularly intended path in a magnetic circuit. Most of the flux is set up in the core of the solenoid and passes through the particular path that is through the air gap and is utilised in the magnetic circuit.

How do you find the flux of a transformer?

In a single phase transformer design, the flux density of Core depends upon Voltage applied or Current drawn from it (Ampere Turns)? Flux Density, B=1/(4.44*f*A*Te), where f is the frequency, A is the cross-sectional area of the core, Te is the turn/volt value.

Which type of flux does transformer action need?

magnetic flux
Therefore, transformer action requires an alternating or time-varying magnetic flux to transfer power from the primary side to the secondary side since induced emf in the winding is due to flux linkage.

How does transformer produce magnetic flux?

When current is circulated through the primary winding of a transformer, it produces a magnetic field around it. The field flux due to magnetic field of primary winding gets linked with the secondary winding by the principle of Mutual Induction.

What is the flux Behaviour when no load on the transformer?

When the transformer is operating at no load, the secondary winding is open-circuited, which means there is no load on the secondary side of the transformer and, therefore, current in the secondary will be zero.

What happen if there is no resistive load across the secondary winding?

When there is no-load connected to the transformers secondary winding, that is its output terminals are open-circuited, there is no closed-loop condition, so there is no output load current (IL = 0) and the transformer acts as one single winding of high self-inductance.

How to draw a phasor diagram of transformer on load condition?

Phasor Diagram of Transformer on Load Condition : The phasor or vector diagrams for a transformer on resistive, inductive, and capacitive loads are drawn by the taking flux φ as the reference. Let, V 1 = Primary supply voltage. E 1 & E 2 = Primary and secondary induced e.m.f’s.

What is the formula for no load phase of transformer?

NO LOAD PHASOR OF A TRANSFORMER Ie V1’ = -E1 r1Ie jIeX1 Voltage drop IeX1 in Primary due to reactance. α E1, E2 = V2 Ic Im Ø NO LOAD PHASOR OF A TRANSFORMER Sourec Voltage V1 = V1’+r1Ie +jIeX1, phasor sum.

What is the excitation current in transtransformer?

Transformer when excited at no load, only takes excitation current which leads the working Flux by Hystereticangleα. Excitation current is made up of two components, one in phase with the applied Voltage V is called Core Loss component (Ic) and another in phase with the working Flux Øcalled Magnetizing Current (Im).

What is the reference phasor for a synchronous generator?

The terminal voltage, Vt, is taken as the reference phasor. The equation for the phasor diagram is, Figure 8.10. Phasor diagram for a synchronous generator.