2007-02-24 15:18:44 · 4 answers · asked by Adila 1 in Science & Mathematics ➔ Engineering
induction
2007-02-24 15:22:56 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Load current has no function. It is wasted energy that the transformer draws due to the induction of eddy currents in the core, as one other respondent has pointed out. It is simply easier to keep a transformer connected to it's primary feed source than to open that portion of the circuit when there is a no load condition for the transformer to supply power to it's secondary side load.
2007-02-24 21:35:21 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The current drawn on the primary side when the secondary side is open is due to inefficiencies in the transformer. Some of the inefficiencies are due to eddy currents in the core. That's why they use thin strips of ferrous material stacked together. If it was a solid block of iron, then the eddy currents would be much larger, and the transformer would draw much more current under no load.
2007-02-24 15:57:04 · answer #3 · answered by vrrJT3 6 · 1⤊ 0⤋
You can do a no-load test to find certain properties of the transformer.
2007-02-24 15:42:25 · answer #4 · answered by johncu719 1 · 0⤊ 1⤋