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Line distance protection REL670
Version 2.2
TRIP BUSBAR & CB2
59
3U>
2
2
27
3U<
2
2
IEC05000317 V2 EN-US
Figure 6. The multi breaker packages for single- and three phase tripping typical arrangement for one protection sub-system is shown here. Auto-
reclose, Synchrocheck and Breaker failure functions are included for each of the two breakers.
14
BUS A
79
25
O->I
SC/VC
94/86
I->O
21
S
Z <
5
5
51/67
3I>
4
4
51N/67N
IN>
4
4
© 2017 - 2022 Hitachi Energy. All rights reserved
CLOSE
CB1
TRIP
79
O->I
TRIP
50BF
3I>
CB1/3
1MRK 506 372-BEN Q
25
SC/VC
50BF
3I>
94/86
I->O
CB2
IEC05000317-2-en.vsd
Hitachi Energy
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