ALF completely cleared but have some confusion regarding ISF. Metering CT ratio is unknown, and if current through CT is 5 times the primary rating, then current will increase on CT secondary or within the limit on which it is designed, say secondary current will be around 5A.
Great 👍
Thank you 😊
ALF completely cleared but have some confusion regarding ISF. Metering CT ratio is unknown, and if current through CT is 5 times the primary rating, then current will increase on CT secondary or within the limit on which it is designed, say secondary current will be around 5A.
Metering CT ratio is given in nameplate of CT.
Maximum current in secondary will also be 5 times.
If core saturates then our protection related to that CT donot work and CB will not trip.
Right and this will also effect the other connected Lines 👍