Table of Contents
Advertisement
1MRK 505 370-UEN D
IEC16000150 V1 EN-US
Figure 79: ACT configuration example for Bus-Section bay
Step 6: ACT engineering of the Bus Sectionalizing Disconnectors
Three bus-sectionalizing disconnectors are installed in this station. Each disconnector is used
to interconnect the two zones located at the two sections. Ultimately when this type of
disconnector is closed, the two relevant zones shall be merged (i.e. switched into one common
zone) in the IED software. In this particular station, the zones can be possibly linked in the
following way: Z1&Z4, Z2&Z5 and Z3&Z6. When any linking shall occur, it depends on the
operational status of the three bus-sectionalizing disconnectors. More specifically, the
following steps need to be done:
1.
Connect the two auxiliary contacts (i.e. normally open and normally closed auxiliary
contacts or also sometimes called "a & b contacts") from each of the three sectionalizing
disconnectors to the IED. This can be done by wiring using binary inputs or via
communication (e.g. via GOOSE or via LDCM).
2.
Use three BDCGAPC function blocks (i.e. one per busbar disconnector) to derive open or
closed status of the respective disconnector primary contacts.
3.
Connect the close status output from each BDCGAPC function block to the respective
zones merging input on the common BBP function block BDZSGAPC. This will ensure
proper dynamic linking of the affected differential zones.
ACT configuration example for three bus-sectionalizing disconnectors presenting in this
station is given in Figure 80.
Busbar protection REB670
Application manual
Section 6
Differential protection
IEC16000150-1.en.vsdx
133
Advertisement
Table of Contents
