Sometime CT secondaries are connect
Sometime CT secondaries are connect
(OP)
Sometime CT secondaries are connected in series to increase knee point voltage as each CT need to supply only half the burden voltage.
The question is what happens when there is a primary fault in between the two CTs as shown in attached diagram?
The question is what happens when there is a primary fault in between the two CTs as shown in attached diagram?






RE: Sometime CT secondaries are connect
RE: Sometime CT secondaries are connect
RE: Sometime CT secondaries are connect
So why has this come up?
RE: Sometime CT secondaries are connect
Do as David said - use two CTs that are over the same bushing or in the same CT unit so that the chances of a fault within the CT are next to nothing--probably a similar chance and outcome as an internal failure of a CT that isn't connected in series. Presumably you have upstream protection will operate.
RE: Sometime CT secondaries are connect
RE: Sometime CT secondaries are connect