A Appendix
528
7UT613/63x Manual
C53000-G1176-C160-2
Figure A-17 Connection example 7UT613 for an auto-transformer bank with protected object auto-transformer branch-
points, with individually accessible earthing electrodes equipped with CTs (M3). The CTs on the earthing
side constitute a separate side for current comparison for each transformer of the bank. The starpoint of the
CTs at M3 is routed via an auxiliary input (I
Z1
), which allows realisation of restricted earth fault protection
and/or earth overcurrent protection.
To Next Page
Loading...
