Can I use measuring current transformers in protection
purposes?
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Answer Posted / minu
no u cannot. this is because the metering and protection CT
cores are differently designed and r made up of different
materials. A Protection CT core is designed so as not to
get saturated at very high fault currents which can cause
mal-operation of the relay connected to that CT. Also, the
accuracy required in the metering CTs is higher than that
required in the protection CTs.
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