ABB REF615 ANSI 5.0 FP1 - Page 20

20 REF615 ANSI 5.0 FP1 FEEDER PROTECTION AND CONTROL
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Figure 9. Application ex-
ample with single busbar
switchgear arranged into
two bus sections sepa-
rated with bus coupler
In the application example in Figure 9, a single bus
bar switchgear is arranged into two bus sections
separated with bus coupler. Standard configura-
tion F is used in the outgoing feeders with optional
Arc Flash detection for increased safety. The syn-
chro-check and voltage remnant functions are used
in standard configuration N in the incoming feed-
ers, and configuration P in the tie breaker. Standard
configuration P has 6 voltage inputs to be able to
monitor decaying voltage in the buses for the im-
plementation of Automatic Transfer Schemes.
3
52
3
52
Δ
Y
52
Υ or Δ
Υ or Δ
3
REF615 Conf N
67P/51P/50P
50BF
67G/51G/50G
27
27R
25
AFD
3
3
REF615 Conf F
51P/50P
50BF
67/51G/50G
AFD
REF615 Conf F
51P/50P
50BF
67/51G/50G
AFD
3
52
3
52
Δ
Y
52
Υ or Δ
Υ or Δ
3
REF615 Conf N
67P/51P/50P
50BF
67G/51G/50G
27
27R
25
AFD
3
3
REF615 Conf F
51P/50P
50BF
67/51G/50G
AFD
REF615 Conf F
51P/50P
50BF
67/51G/50G
AFD
52
3
REF615 Conf P
67P/51P/50P
50BF
67N/51N/50N
27
27R
25
AFD
1
1
3 3