What is CT(Current Transformer) ?
Instrument Transformer are two types CT(current transformer) and VT(voltage transformer).
For stepping down voltages and current for metering and measurement. CT is a type of instrument that design to produce an alternating current in its secondary winding which is proportional to the current being measured in its primary.
figure of current and voltage transformer.
Above figure shows how CT is working .
CT is just as working as other transformer ,
from above formula we can find out current in secondary side.
Is = secondary current
Ip= primary current
Np= no. of turn in primary
Ns= no. of turn in secondary
some images of CT use in field work.
