How we protect a delta-delta transformer from ground fault, i mean the CT's location?

 

Respondibg to RK Soni's Sep 7, 2:01am query.... unfortunately, there is no CT location.

Ground-fault current detection in an ungrounded system is not poassibe. However, ground-fault detection is possible by phase-to-ground voltage
monitoring. I suggest you do a search of tte Control List archives!

Regards,
Phil Corso, PE {Boca Raton, FL, USA}
[[email protected]] ([email protected])