What is phasor diagram in transformer?

The phasor or vector diagrams for a transformer on resistive, inductive, and capacitive loads are drawn by taking flux Φ as the reference. Let, V1 = Primary supply voltage. E1 & E2 = Primary and secondary induced emf’s.

What is the importance of phasor diagram in transformer?

Important Points for Phasor Diagram of Transformer: 3) Electromotive Force (EMF) created by working Flux Ø lags behind it by 90 degree. 4) When Transformer is connected with a Load, it takes extra current I’ from the Source so that N1I’ = N2I2 where I’ is called load component of Primary Current I.

What is transformer explain with diagram?

A transformer is defined as a passive electrical device that transfers electrical energy from one circuit to another through the process of electromagnetic induction. It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits.

What are phasor diagram for an ideal transformer on no load?

The applied voltage V1 is drawn equal and opposite to the induced emf E1 because the difference between the two, at no load, is negligible. Active component Iw is drawn in phase with the applied voltage V1. The phasor sum of magnetizing current Im and the working current Iw gives the no-load current I0.

What is transformer explain working of a transformer?

A transformer is an electrical apparatus designed to convert alternating current from one voltage to another. It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle. A voltage is then induced in the other coil, called the secondary or output coil.

Does a transformer draw current without load?

Since the secondary of the transformer is open, the primary draws only no-load current, which will have some copper loss. Therefore, power is no longer transferred from primary to secondary in this approximation, and negligible current goes through the secondary windings.