ABB REF615 ANSI 5.0 FP1 - Page 19

19
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Figure 8. Application ex-
ample with single busbar
switchgear arrangement
Application example with single busbar switchgear
arrangement is shown in Figure 8. Current sensors
(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.
52 52
Δ
Y
52
REF615 Conf L
67P/51P/50P
50BF
67G/51G/50G
27
27R via
IEC 61850-9-2LE
25 via IEC 61850-9-2LE
AFD
REF615 Conf L
51P/50P
50BF
67/51G/50G
AFD
REF615 Conf F
51P/50P
50BF
67/51G/50G
AFD
52 52
Δ
Y
52
REF615 Conf L
67P/51P/50P
50BF
67G/51G/50G
27
27R via
IEC 61850-9-2LE
25 via IEC 61850-9-2LE
AFD
REF615 Conf L
51P/50P
50BF
67/51G/50G
AFD
REF615 Conf L
51P/50P
50BF
67/51G/50G
AFD
52
REF615 Conf L
67P/51P/50P
50BF
67N/51N/50N
27
27R via
IEC 61850-9-2LE
25 via IEC 61850-9-2LE
AFD
Va, Vb, Vc Va, Vb, Vc
3I
3I
3I
3I
3I
3I 3I
Va, Vb, Vc Va, Vb, Vc
IEC 61850-9-2LE