ABB REF 610 - Page 159

159
HSO 2
HSO 1
Q2
3l
Q1
Q4
DI1
S2
DI1
Q6Q5
3I+Io
DI1
S3
3I+Io 3I+Io
TRIP 3
M1
S4
Q3
3I+Io
S1
DI1
A040364
Fig. 6.2.3.-1 Arc protection with REF 610 and REA 101
Feeder Protection Relay
Technical Reference Manual
REF 610REF 610
1MRS755310