What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?
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Answer Posted / Preeti Singh
A Neutral Current Transformer (NCT) can be used with a 11kV/0.433kV transformer for monitoring the neutral current of the system. There are several types of NCTs available, but the most common ones for this voltage range are Air-type and Cast-core NCTs.
1. Air-Type Neutral Current Transformer: This type uses air as the insulating medium between the primary and secondary windings. They are lightweight, easy to install, and suitable for lower current ratings.
2. Cast-Core Neutral Current Transformer: This type uses a cast resin as the insulating material. They offer higher insulation strength, better stability, and can handle higher current ratings.
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