ABB REX 521 - Page 147

1MRS751802-MUM
REX 521
147
Protection Relay
Technical Reference Manual, Standard Configurations
Fig. 9.2.1.-1 B01 is used for protection, measuring and supervision on both an
incoming and an outgoing feeder in a single busbar system. The
supplying network is either solidly or resistance earthed
UserIncF
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 B01
3I > 50/51
I >
0
50N/51N
CBFP
62
TCS
CBCM
3I
I
0
0
I
MCS
3I~harm
000
R
REX 521 B01
Application Example 1
Application Example 2