Overview
The “Interlocking for busbar earthing switch (BB_ES)” function is used for one busbar earthing switch on any busbar parts according to this Switchyard layout:
For more detailed information on “Interlocking for busbar earthing switch (BB_ES)” function, refer to ABB, Relion 670 Series manuals.
To see other supported functions, click here.
Function Identification
| Function description | IEC 61850 identification |
IEC 60617 identification |
ANSI/IEEE C37.2 device number |
| Interlocking for busbar earthing switch | BB_ES | – | 3 |
Signals
BB_ES function block
BB_ES Input signals
| BB_ES Input signals | |||
| Name | Type | Default | Description |
| QC_OP | BOOLEAN | 0 | Busbar earthing switch QC is in open position |
| QC_CL | BOOLEAN | 0 | Busbar earthing switch QC is in closed position |
| BB_DC_OP | BOOLEAN | 0 | All disconnectors on this busbar part are open |
| VP_BB_DC | BOOLEAN | 0 | Status for all disconnectors on this busbar part are valid |
| EXDU_BB | BOOLEAN | 0 | No transm error from bays with disc on this busbar part |
BB_ES Output signals
| BB_ES Output signals | |||
| Name | Type | Description | |
| QCREL | BOOLEAN | Switching of QC is allowed | |
| QCITL | BOOLEAN | Switching of QC is forbidden | |
| BBESOPTR | BOOLEAN | QC on this busbar part is in open position | |
| BBESCLTR | BOOLEAN | QC on this busbar part is in closed position | |
Logics & highlights
BB_ES Logic diagram
