1
\$\begingroup\$

I am looking into developing a sensor system to be placed within a transformer. This sensor system in theory, should be able to detect any unprecedented change in EMF within the transformer enclosure.

I understand the EMF of a coil of wire is F= Turns*current in the windings.

In theory, a short within the windings would cause, a change in EMF, because the number of turns have changed.

Is this the case?

And would a small circuit being exposed to such high magnetic fields potentially damage the circuit. For the purposes of this question, let us assume the sensor is a small embedded system that is powered by a low-voltage DC battery.

\$\endgroup\$
1
  • \$\begingroup\$ What are you trying to achieve and primarily what are you trying to measure? \$\endgroup\$ – Andy aka Oct 5 '15 at 8:53
1
\$\begingroup\$

You need to describe much more clearly what you are doing - what do you mean by transformer enclosure?

A shorted turn in a transformer radically affects its operation far more than just reducing the voltage because of the reduced number of turns.

The shorted turn acts as a shorted secondary so it will pass a high current in a normal transformer and cause it to burn out.

If you are measuring the inductance or EMF of a winding of a transformer it will cause both to go very low, almost zero because any EMF generated will be counteracted by the current in the shorted turn.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.