ABB REF 541 Product Manual page 63

Feeder Terminal
Fig. 16 REF 54_ used for the protection of a double Y connected capacitor bank
REF 541, REF 543, REF 545.
1MRS750443-MBG
3U> 59 MCS
3U< 27
TCS
U
0
REF 54_
3I> 50/51
MCS
I >
51N TCS
0
3I>3I< 51C,37C,
CBCM
68C
51NC
DI>
CBFP 62BF
DI
I
0
REF 54_
3U
f
3I
63