Voltage Switch Vmswi (Ansi Vswi) - ABB RELION REX640 Technical Manual

1MRS759142 F
3.20.16

Voltage switch VMSWI (ANSI VSWI)

3.20.16.1 Identification
Function description
Voltage switch
3.20.16.2 Function block
Figure 154: Function block
3.20.16.3 Functionality
The voltage switch function VMSWI performs the switching function between up to
four voltage groups (Bus1, Bus 2, Bus 3 and Bus 4).
Residual voltage input can be optional and depends of the application
configuration. The switching operation can also be associated with the residual
voltage if available.
The calculated components U+, U- and U
of the wye/delta mode) are switch-controlled as well.
3.20.16.4 Analog channel configuration
VMSWI has eight analog group inputs which must be properly configured. All inputs
can be connected to GRPOFF.
Table 259: Analog inputs
Input
U3P1
U3P2
U3P3
U3P4
URES1
URES2
Table continues on the next page
1
Can be connected to GRPOFF
REX640
Technical Manual
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IEC 61850
identification
VMSWI
and the calculated P2P / P2E (depending
0
Description
Three-phase voltages
Three-phase voltages
Three-phase voltages
Three-phase voltages
Residual voltage (measured or calculated)
Residual voltage (measured or calculated)
Basic functions
IEC 60617 ANSI/IEEE C37.2
identification device number
VSWI VSWI
275