ABB REX 521 - Page 164

164
1MRS751802-MUM
Protection Relay
Technical Reference Manual, Standard Configurations
REX 521
Fig. 9.4.1.-1 B02 is used for protection, measuring and supervision on an
outgoing feeder in a single busbar system. The supplying network
is either solidly or resistance earthed.
49F
3
3I > 50/51
I >
0
50N/51N
I >
46
CBFP
62
TCS
CBCM
3I
I
0
0
I
MCS
3I~harm
000
R
REX 521 B02
0
I
79
UserOutgB02
Application Example 4