ABB REF 541 Product Manual page 55

Feeder Terminal
MF
q
q
p>
MF
M M
Fig. 8 Protection, control, measurement and supervision functions of a utility infeeder, implemented with
REF 54_ feeder terminals, an REA arc monitoring system and SPACOM differential relay and volt-
age regulator (main single-line diagram presentation). The neutral point of the MV network sup-
plied by the infeeder is earthed via the Petersen coil.
REF 541, REF 543, REF 545.
MCS
3I > 50/51
I > 50N/51N
TCS
0
CBCM
CBFP * /62
R
REF 54_
U 90V
R
SPAU 341
D 87T R
3 I >
CBFP * /62
SPAD 346C
q
50/51
3I >
MCS
51B
TCS
U > 59N CBCM
0
3U > 59 R
CBFP * /62
P
3I~harm
Q
3U~harm
U
0
I
0
REF 54_
1MRS750443-MBG
000
0 I
U
000
000
000
3I >
&
REA 101
0
I
3I
3U
E
EXINFDR3
55