ABB REF615 ANSI 5.0 FP1 User Manual

23
—
Figure 12. Application
example of busbar
differential protection
covering two zones using
standard configuration N
In the application example in Figure 12, single bus-
bar switchgear has been arranged into two bus
sections separated with bus coupler. Standard con-
figuration N is used with high-impedance differen-
tial protection for busbar and covering two zones
with two protection relays.
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 N
51P/50P
50BF
67/51G/50G
49F
AFD
REF615 Conf N
51P/50P
50BF
67/51G/50G
79
AFD
3
52
3
52
Δ
Y
52
Υ or Δ
Υ or Δ
3
3
REF615 Conf N
51P/50P
50BF
67/51G/50G
49F
AFD
REF615 Conf N
51P/50P
50BF
67/51G/50G
79
AFD
52
3
REF615 Conf P
67P/51P/50P
50BF
67N/51N/50N
27
27R
25
AFD
1
1
3 3
Cable
Overhead
line
Cable
Overhead
line
REF615 Conf N
67P/51P/50P
50BF
67G/51G/50G
27
27R
25
AFD
REF615 Conf N
87A
87B
87C
AFD
REF615 Conf N
87A
87B
87C
AFD
3
3
3
3
3
33
3
3
Stabilizing
varistor and
resistor

ABB REF615 ANSI 5.0 FP1 Specifications

General

Rated Frequency	50/60 Hz
Binary Outputs	Up to 8
Device Type	Feeder Protection Relay
Version	5.0 FP1
Protection Functions	Overcurrent, Earth Fault, Thermal overload, Under/Overvoltage, Under/Overfrequency
Communication Protocols	IEC 61850, Modbus, DNP3
Auxiliary Supply Voltage	110-250 V DC/AC
Mounting	Flush mounting
Operating Temperature Range	-40 °C to +70 °C
Dimensions	177 x 177 x 150 mm (H x W x D)
Housing	Plastic
Standard	IEC 60255
Input Voltage	110-240 V AC/DC
Enclosure	IP54