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step-down transformer

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.02 sec.
step-down transformer [′step ¦dau̇n tranz′fȯr·mər]
(electricity)
A transformer in which the alternating-current voltages of the secondary windings are lower than those applied to the primary winding.


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3 Step-Down Transformer: Home appliances can't handle so much power, so a step-down transformer lowers the voltage to a few thousand volts.
They have built-in electronic step-down transformers and can be fitted with glass shields.
In access BPL systems, communication signals are imposed on electrical distribution feeders and travel over medium-voltage lines to the step-down transformer at a residence or business.
 
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