ABB Relion 670 series - Proxy for Signals from Switching Device Via GOOSE XLNPROXY

The purpose of these functions is to provide the actual status of positions and to perform
the control operations, that is, pass all the commands to the primary apparatus via output
boards and to supervise the switching operation and position.
Switches have the following functionalities:
• Local/Remote switch intended for the switchyard
• Block/deblock for open/close command respectively
• Update block/deblock of position indication
• Substitution of position indication
• Supervision timer that the primary device starts moving after a command
• Supervision of allowed time for intermediate position
• Definition of pulse duration for open/close command respectively
The realizations of these functions are done with SXCBR representing a circuit breaker
and with SXSWI representing a circuit switch that is, a disconnector or an grounding
switch.
Circuit breaker (SXCBR) can be realized either as three one-phase switches or as one
three-phase switch.
The content of this function is represented by the IEC 61850 definitions for the logical
nodes Circuit breaker (SXCBR) and Circuit switch (SXSWI) with mandatory
functionality.
15.3.1.4 Proxy for signals from switching device via GOOSE XLNPROXY
The purpose of the proxy for signals from switching device via GOOSE (XLNPROXY)
is to give the same internal representation of the position status and control response for
a switch modeled in a breaker IED as if represented by a SXCBR or SXSWI function.
The command response functionality is dependent on the connection of the execution
information, XIN, from the SCSWI function controlling the represented switch.
Otherwise, the function only reflects the current status of the switch, such as blocking,
selection, position, operating capability and operation counter.
Since different switches are represented differently on IEC 61850, the data that is
mandatory to model in IEC 61850 is mandatory inputs and the other useful data for the
command and status following is optional. To make it easy to choose which data to use for
the XLNPROXY function, their usage is controlled by the connection of each data’s
signal input and valid input. These connections are usually from the GOOSEXLNRCV
function (see Figure
318 and Figure 319).
1MRK 506 369-UUS - Section 15
Control
Line distance protection REL670 2.2 ANSI 687
Application manual