ABB REF615 ANSI 5.0 FP1 Product Manual page 19

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Application example with single busbar switchgear
Figure 8. Application ex-
ample with single busbar
arrangement is shown in Figure 8. Current sensors
switchgear arrangement
(Rogowski coil) and voltage sensors (voltage di-
vider) are used for the measurements in standard
configurations L. The used main protection func-
tions are overcurrent, ground-fault and voltage
based protection. 27R and 25 functions are pro-
vided via IEC 61850-9-2LE for the implementation
of automatic transfer schemes in mains and tie
relays.
3I
52
Δ
Y
Va, Vb, Vc
REF615 Conf L
67P/51P/50P
3I
50BF
67G/51G/50G
27
52
27R via
IEC 61850-9-2LE
25 via
IEC 61850-9-2LE
AFD
Va, Vb, Vc
3I
REF615 Conf L REF615 Conf L
51P/50P 51P/50P
50BF 50BF
67/51G/50G 67/51G/50G
AFD AFD
52
IEC 61850-9-2LE
52
3I
Va, Vb, Vc
3I
REF615 Conf L REF615 Conf L
67P/51P/50P 51P/50P
50BF 50BF
67N/51N/50N 67/51G/50G
27 AFD
52
27R via
IEC 61850-9-2LE
25 via
IEC 61850-9-2LE
AFD
Δ
Y
Va, Vb, Vc
REF615 Conf L
67P/51P/50P
3I
50BF
67G/51G/50G
27
52
27R via
IEC 61850-9-2LE
25 via
IEC 61850-9-2LE
AFD
3I
REF615 Conf F
51P/50P
50BF
67/51G/50G
AFD
52
19