Overview
The “Radial feeder protection (PAPGAPC)” function is used to provide protection of radial feeders having passive loads or weak end in-feed sources. It is possible to achieve fast tripping using communication system with remote end or delayed tripping not requiring communication or upon communication system failure. For fast tripping, scheme communication is required. Delayed tripping does not require scheme communication.
For more detailed information on “Radial feeder protection (PAPGAPC)” 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 |
| Radial feeder protection | PAPGAPC | U< | 27 |
Signals & Setting Parameters
PAPGAPC function block
PAPGAPC Input signals
| PAPGAPC Input signals | |||
| Name | Type | Default | Description |
| I3P | GROUP SIGNAL | – | Group parameter for current signals |
| U3P | GROUP SIGNAL | – | Group parameter for voltage signals |
| BLOCK | BOOLEAN | 0 | Block of function |
| BLKTR | BOOLEAN | 0 | Block trip |
| BLKST | BOOLEAN | 0 | Block Start |
| BLKDLFLT | BOOLEAN | 0 | Blocks the delayed fault clear functionality |
| FUSEFAIL | BOOLEAN | 0 | Block from fuse failure function |
| COMOK | BOOLEAN | 0 | Telecommunication link healthy |
| CR | BOOLEAN | 0 | Received communication signal |
| CBCLD | BOOLEAN | 0 | Circuit breaker is closed |
| POLEDISC | BOOLEAN | 0 | The position of CB poles differs (pole discordance) |
PAPGAPC Output signals
| PAPGAPC Output signals | |||
| Name | Type | Description | |
| TRIP | BOOLEAN | General trip | |
| TRIN | BOOLEAN | Trip caused by residual current detection | |
| TRL1 | BOOLEAN | Trip phase L1 | |
| TRL2 | BOOLEAN | Trip phase L2 | |
| TRL3 | BOOLEAN | Trip phase L3 | |
| ARST | BOOLEAN | Start signal to the autorecloser function | |
| ARST3PH | BOOLEAN | Three phase reclosing to be performed | |
| ARSTL1 | BOOLEAN | Autoreclosing start phase L1 | |
| ARSTL2 | BOOLEAN | Autoreclosing start phase L2 | |
| ARSTL3 | BOOLEAN | Autoreclosing start phase L3 | |
PAPGAPC Group settings (basic)
| PAPGAPC Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| Operation | Off On |
– | – | Off | Operation Off / On |
| UPhSel< | 30 – 100 | % | 1 | 60 | Faulted phase voltage in % of quadrilateral phase-phase voltage divided by sqrt (3) |
| Tau | 1 – 60 | sec | 1 | 5 | Time constant for reference voltage |
| FastOperation | Off On |
– | – | Off | Enable fast fault clearing function |
| t3Ph | 0.000 – 60.000 | s | 0.001 | 1.000 | Time delay for three phase operation |
| IN> | 10 – 150 | %IB | 1 | 50 | Residual current detection level in % of IBase |
| ResCurrCheck | Off On |
– | – | Off | Enable residual current check for delayed operation at single-phase faults |
| Del1PhOp | 3Ph 1Ph |
– | – | 3Ph | Enable delayed operation for single phase faults |
| t1Ph | 0.000 – 60.000 | s | 0.001 | 1.000 | Time delay for single phase operation |
| Del3PhOp | Off On |
– | – | Off | Enable delayed 3-phase operation |
| ResCurrOper | Off On |
– | – | Off | Enabling signal for residual current operation |
| tResCurr | 0.000 – 60.000 | s | 0.001 | 0.200 | Time delay for residual current indication |
PAPGAPC Non group settings (basic)
| PAPGAPC Non group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| GlobalBaseSel | 1 – 12 | – | 1 | 1 | Selection of one of the Global Base Value groups |
PAPGAPC Monitored data
| PAPGAPC Monitored data | ||||
| Name | Type | Values (Range) | Unit | Description |
| UL1 | REAL | – | kV | Voltage DFT amplitude in Phase1 |
| UL2 | REAL | – | kV | Voltage DFT amplitude in Phase2 |
| UL3 | REAL | – | kV | Voltage DFT amplitude in Phase3 |
| IN | REAL | – | A | Residual current DFT amplitude |
Logics & highlights
Desired filter response
Simplified logic diagram for faulted phase selection
Simplified logic diagram for residual current detection
Simplified logic diagram for fast fault clearance
Simplified logic diagram for delayed fault clearance
Simplified logic diagram for trip and autoreclose logic
