Designing transformers to take advantage of low duty cycle applications can save on physical size and save on original investment cost. But if the user does not appreciate what duty cycle means, it can quickly mean the loss of the original investment.
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Electrical engineers are not often taught in undergraduate school why a saturable reactor is often called a magnetic amplifier. So, here is a post to explain why. A saturable reactor is a magnetic amplifier since it can control the transfer of a significant amount of AC volt-amperes with a relatively small amount of DC volt-amps. The amplification factor is the ratio of the output volt-amperes divided by the DC control volt-amperes.
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