ABB_REF615_EFP
Directional earth-fault element on residual current with a polarised forward sector, IEC curve family and definite-time stage.
When to use it
Use ABB_REF615_EFP when a feeder needs a sensitive earth-fault element that must stay selective on a network with more than one earthed source, so residual current alone is not enough and the fault direction has to be confirmed against the residual voltage.
Interface
The published port signature. This is the whole of what the block exposes to your program — the implementation body is not shown here and ships with the download.
Inputs
| Port | Type | Unit |
|---|---|---|
| I0 | REAL | A |
| V0 | REAL | V |
| I0pu | REAL | A |
| phi | REAL | deg |
| RCA | REAL | deg |
| SECTOR | REAL | deg |
| V0MIN | REAL | V |
| NONDIR | BOOL | — |
| CURVE | INT | — |
| TD | REAL | TMS / s |
| TRESET | TIME | — |
| DO_RATIO | REAL | xI0pu |
| BLK | BOOL | — |
| ENABLE | BOOL | — |
| CT_OK | BOOL | — |
| VT_OK | BOOL | — |
| ACK | BOOL | — |
Outputs
| Port | Type | Unit |
|---|---|---|
| TRIP | BOOL | — |
| START | BOOL | — |
| dir | BOOL | — |
| top | TIME | — |
| DISC | REAL | 0-1 |
| DIR_VALID | BOOL | — |
| DIR_INHIBIT | BOOL | — |
| BLOCKED | BOOL | — |
| VALID | BOOL | — |
| ALM_NO_POL | BOOL | — |
| ALM_MEAS_FAULT | BOOL | — |
| ALM_CFG_ERR | BOOL | — |
Supervised control write
ABB_REF615_EFP commands a real actuator. It is written to sit underneath your own interlock, permissive and protection logic — not to replace it. Commission it as you would any control block you wrote yourself.
Validation evidence
- Tests
- 11
- Simulated scans
- 133
- Simulator
- v0.1.0
Complete IEC 61131-3 implementation with a published test suite that runs on the vplant simulator. The counts above are that suite, executed on this build.
- Conforms to IEC 61131-3
Download ABB_REF615_EFP — free
Create a free Ri Tech account to download the block. You get the Structured Text body, the Rockwell Add-On Instruction (.L5X), the Schneider Control Expert DFB (.XDB), PLCopen XML and the datasheet.
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Source is never published on this page. The implementation is released to a signed-in Ri Tech account — free of charge, but never anonymously.