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What happens when the polarity changes in CT? Explain
briefly?
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Answer Posted / guna
CT - current transformer, other name is instrument transformers, which are used to measure high currents. By depending upon winding ratio (Ex,20:5) it gives the current value at the user end. if we change the polarity means (5:20) either it will show high current nor it can get short circuited due to abnormal current flow on the LT side.
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