Lastly.. CT saturation will not be an issue, if low impedance busbar protection is being used, compared to stringent requirement by High Impedance Busbar prot.
Hi Typically with low impedance busbar differetial for example GE B30 or B90, CT ratio can be different. While configuring the relay you can enter each Different CT ratio. Secondly polarity of CTs are not an issue as well, above said numerical relays provides you option to define inside relay...
Hi there!
Can someone throw some light on this... If 90 Degree connection with RCA 30 OR 45 degrees, can detect and trip on ground fault as well in solidly grounded systems, then why a separate ground fault directional relay is used.
