Section 5 Protection Relay's Physical Connections - ABB REF611 Applications Manual

1MRS757456 D
Section 5
5.1
5.1.1
5.1.1.1
5.1.1.2
5.1.1.3
REF611
Application Manual
Protection relay's physical connections
Inputs
Energizing inputs
Phase currents
The protection relay can also be used in single or two-phase
applications by leaving one or two energizing inputs unoccupied.
However, at least terminals X120:7-8 must be connected.
Table 27: Phase current inputs included in configurations A, B and C
Terminal
X120:7-8
X120:9-10
X120:11-12
Residual current
Table 28: Residual current input included in configurations A, B and C
Terminal
X120:13-14
Residual voltage
Table 29: Additional residual voltage input included in configuration A
Terminal
X120:5-6
Table 30: Additional residual voltage input included in configuration C
Terminal
X130:17-18
Protection relay's physical connections
Description
IL1
IL2
IL3
Description
Io
Description
Uo
Description
Uo
Section 5
173