Question
Download Solution PDFInstrument transformers are
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFIn high voltage A.C. circuits, the measurement cannot be done by using the method of extension of ranges of low range meters by providing suitable shunts.
In such conditions, specially constructed accurate ratio transformers are used. These transformers are used to isolate the instruments from high current and high voltage A.C. circuits.
These are generally classified as
(i) Current transformer - large alternating currents can be measured
(ii) Potential transformer - High voltages can be measuredLast updated on May 28, 2025
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