Overview
The “Interlocking for bus-section disconnector (A1A2_DC)” function is used for one bus-section disconnector between section 1 and 2 according to below Switchyard layout. A1A2_DC function can be used for different busbars, which includes a bus-section disconnector.
For more detailed information on “Interlocking for bus-section disconnector (A1A2_DC)” 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 bus-section disconnector | A1A2_DC | – | 3 |
Signals
A1A2_DC function block
A1A2_DC Input signals
| A1A2_DC Input signals | |||
| Name | Type | Default | Description |
| QB_OP | BOOLEAN | 0 | QB is in open position |
| QB_CL | BOOLEAN | 0 | QB is in closed position |
| S1QC1_OP | BOOLEAN | 0 | QC1 on bus section 1 is in open position |
| S1QC1_CL | BOOLEAN | 0 | QC1 on bus section 1 is in closed position |
| S2QC2_OP | BOOLEAN | 0 | QC2 on bus section 2 is in open position |
| S2QC2_CL | BOOLEAN | 0 | QC2 on bus section 2 is in closed position |
| S1DC_OP | BOOLEAN | 0 | All disconnectors on bus section 1 are in open position |
| S2DC_OP | BOOLEAN | 0 | All disconnectors on bus section 2 are in open position |
| VPS1_DC | BOOLEAN | 0 | Switch status of disconnectors on bus section 1 are valid |
| VPS2_DC | BOOLEAN | 0 | Switch status of disconnectors on bus section 2 are valid |
| EXDU_ES | BOOLEAN | 0 | No transm error from bays containing earth. sw. QC1 or QC2 |
| EXDU_BB | BOOLEAN | 0 | No transm error from bays with disc conn to section 1 and 2 |
| QBCL_EX1 | BOOLEAN | 0 | External close condition for section disconnector QB |
| QBCL_EX2 | BOOLEAN | 0 | External close condition for section disconnector QB |
| QBOP_EX1 | BOOLEAN | 0 | External open condition for section disconnector QB |
| QBOP_EX2 | BOOLEAN | 0 | External open condition for section disconnector QB |
| QBOP_EX3 | BOOLEAN | 0 | External open condition for section disconnector QB |
A1A2_DC Output signals
| A1A2_DC Output signals | |||
| Name | Type | Description | |
| QBOPREL | BOOLEAN | Opening of QB is allowed | |
| QBOPITL | BOOLEAN | Opening of QB is forbidden | |
| QBCLREL | BOOLEAN | Closing of QB is allowed | |
| QBCLITL | BOOLEAN | Closing of QB is forbidden | |
| DCOPTR | BOOLEAN | The bus section disconnector is in open position | |
| DCCLTR | BOOLEAN | The bus section disconnector is in closed position | |
| VPDCTR | BOOLEAN | Switch status of QB is valid (open or closed) | |
Logics & highlights
A1A2_DC Logic diagram
