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Examen
Transformers Level 2 Study Guide questions and answers
Transformers Level 2
Transformers Level 2
What is an electrostatic shield or isolation transformer? Helps prevent common-mode noise 
from transferring from the transformer's primary to the secondary 
What is the main limitation of an autotransformer? Has a lower impedance than a two 
winding transformer, which allows higher short circuit currents. 
What is the formula for CO-Ratio? (HV-LV) / HV
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