Question

CT is used to extend the range of ammeter in an electrical circuit. Explain the effect of open circuited secondary
on the function of CT.​

Answer 1

Answer:

So thus when the CT Secondary is Open Circuited, the Resultant MMF induced in the Core is very very high. ... Because of excessive core flux, the hysteresis and eddy current loss will be very high and the CT will get overheated. As CT is oil filled, because of overheating, the oil of CT will get boil and start to vaporize.

Hope it was helpful to you

Don't forget to mark me as the brainliest