Disconnector Position Indication Dcsxswi And Earthing Switch Indication Essxswi; Identification; Function Block; Functionality - ABB Relion SMU615 Technical Manual

1MRS758407 B
8.2
8.2.1
8.2.2
8.2.3
8.2.4
SMU615
Technical Manual
Disconnector position indication DCSXSWI and
Earthing switch indication ESSXSWI

Identification

Function description
Disconnector position indication
Earthing switch indication

Function block

A071280 V2 EN
Figure 136: Function block
A071282 V2 EN
Figure 137: Function block

Functionality

The functions DCSXSWI and ESSXSWI indicate remotely and locally the open,
close and undefined states of the disconnector and earthing switch. The functionality
of both is identical, but each one is allocated for a specific purpose visible in the
function names. For example, the status indication of disconnectors or circuit breaker
truck can be monitored with the DCSXSWI function.
The functions are designed according to the IEC 61850-7-4 standard with the logical
node XSWI.

Operation principle

Status indication and validity check
The object state is defined by the two digital inputs POSOPEN and POSCLOSE, which
are also available as outputs OPENPOS and CLOSEPOS together with the OKPOS
according to Table 274. The debounces and short disturbances in an input are
eliminated by filtering. The binary input filtering time can be adjusted separately for
each digital input used by the function block. The validity of digital inputs that
IEC 61850 IEC 60617
identification identification
DCSXSWI I<->O DC
ESSXSWI I<->O ES
Section 8
Control functions
ANSI/IEEE C37.2
device number
I<->O DC
I<->O ES
225