ABB REF615 ANSI 5.0 FP1 Product Manual page 20

20 R E F 6 1 5 A N S I 5 . 0 F P 1 F E E D E R P R OT E C T I O N A N D C O N T R O L
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In the application example in Figure 9, a single bus
Figure 9. Application ex-
ample with single busbar
bar switchgear is arranged into two bus sections
switchgear arranged into
separated with bus coupler. Standard configura-
two bus sections sepa-
rated with bus coupler
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
Δ
Y
Υ or Δ
REF615 Conf N
3
67P/51P/50P
3
50BF
67G/51G/50G
27
52
27R
25
AFD
Υ or Δ
3 1
REF615 Conf F REF615 Conf F
3
51P/50P 51P/50P
50BF 50BF
67/51G/50G 67/51G/50G
AFD AFD
52
52
3
REF615 Conf P REF615 Conf F
3 3 3
67P/51P/50P 51P/50P
50BF 50BF
67N/51N/50N 67/51G/50G
27 AFD
52
27R
25
AFD
Δ
Y
Υ or Δ
REF615 Conf N
3
67P/51P/50P
3
50BF
67G/51G/50G
27
52
27R
25
AFD
Υ or Δ
3 1
REF615 Conf F
3
51P/50P
50BF
67/51G/50G
AFD
52