Why the main flux in a transformer is remains practically constant from no load to full load?

(b) Eddy current loss: Since flux in the core of a transformer is alternating, it links with the magnetic material of the core itself also. This induces an emf in the core and circulates eddy currents. The flux set up in the core of the transformer remains constant from no-load to full load.

Why both the transformer and induction motor are called constant flux devices?

Thus the net flux is always at constant level. As practically flux is constant,the core loss is constant for all loads. Hence a transformer is always called a Constant Flux Machine.

Is the flux in the transformer is constant How?

The power transformer is a constant flux device because it follows the Lenz’s law, for every change in flux density caused by loading on secondary it will draw the magnetizing current proportionately from primary. So, the net flux in the core is always constant.

Why the iron loss in a practical transformer remains practically constant from no load to full load?

[Solved] In an actual transformer the iron loss remains practically c.

Why is an induction motor called a rotating transformer?

In induction motor, rotor is short circuted, there is no physical contact between stator and rotor. rotor is made to rotate due to induce effect of stator..which is similar to transformer operating principle where primary and secondary magnetically coupled. thats why it is called rotating transformer.

Why is a transformer a constant flux device on a circuit?

Because a transformer is a constant flux device on any load and on any power factor. This is because of load component of current. In brief. As the load increase the primary current increase and cause more flux to flow through core so that the load could be satisfied.

What is leakage flux in a transformer?

Part of the total flux of a winding that links only with the winding itself and/or metallic body parts of transformer such as tank wall, core clamps etc. is called leakage flux. ϕ L 1 and ϕ L 2 are leakage flux associated with primary and secondary winding respectively.

Why is a constant flux machine called a ‘constant flux machine’?

Due to primary current flux induced at two places primary and secondary. (Self induction and mutual induction) Same way for secondary current two flux induced one in primary as mutual induction and one in secondary as self induction. . That’s why it called constant flux machine. 8 clever moves when you have $1,000 in the bank.

What are the fluxes in the core of a magnet?

The fluxes in core are always equal to the magnitude of fluxes required to magnetise the ferromagnetic material , the core . if in case the load changes , the current in secondary side changes , which results in change in reverse fluxes , then the current in primary side is so changed , so as to maintain the total flux in core constant as before .