Phase selection with load encroachment, quadrilateral characteristic FDPSPDIS includes six impedance measuring loops; three intended for phase-to-earth faults, and three intended for phase-to-phase faults as well as for three-phase faults.
The difference, compared to the distance zone measuring function, is in the combination of the measuring quantities (currents and voltages) for different types of faults.
For more detailed information on “Phase selection, quad, fixed angle, load encroachment (FDPSPDIS)” 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 |
| Phase selection, quad, fixed angle, load encroachment | FDPSPDIS | Z<phs | 21 |
FDPSPDIS function block
FDPSPDIS Input signals
| FDPSPDIS Input signals | |||
| Name | Type | Default | Description |
| I3P | GROUP SIGNAL | – | Group signal for current input |
| U3P | GROUP SIGNAL | – | Group signal for voltage input |
| BLOCK | BOOLEAN | 0 | Block of function |
| DIRCND | INTEGER | 0 | External directional condition |
FDPSPDIS Output signals
| FDPSPDIS Output signals | |||
| Name | Type | Description | |
| TRIP | BOOLEAN | Trip output | |
| START | BOOLEAN | Start in any phase or loop | |
| STFWL1 | BOOLEAN | Fault detected in phase L1 – forward direction | |
| STFWL2 | BOOLEAN | Fault detected in phase L2 – forward direction | |
| STFWL3 | BOOLEAN | Fault detected in phase L3 – forward direction | |
| STFWPE | BOOLEAN | Earth fault detected in forward direction | |
| STRVL1 | BOOLEAN | Fault detected in phase L1 – reverse direction | |
| STRVL2 | BOOLEAN | Fault detected in phase L2 – reverse direction | |
| STRVL3 | BOOLEAN | Fault detected in phase L3 – reverse direction | |
| STRVPE | BOOLEAN | Earth fault detected in reverse direction | |
| STNDL1 | BOOLEAN | Non directional start in L1 | |
| STNDL2 | BOOLEAN | Non directional start in L2 | |
| STNDL3 | BOOLEAN | Non directional start in L3 | |
| STNDPE | BOOLEAN | Non directional start, phase-earth | |
| STFW1PH | BOOLEAN | Start in forward direction for single-phase fault | |
| STFW2PH | BOOLEAN | Start in forward direction for two- phase fault | |
| STFW3PH | BOOLEAN | Start in forward direction for thre-phase fault | |
| STPE | BOOLEAN | Current conditions release of phase-earth measuring elements | |
| STPP | BOOLEAN | Current conditions release of phase-phase measuring elements | |
| STCNDZ | INTEGER | Start condition (Z< with LE and 3I0 E/F detection) | |
| STCNDLE | INTEGER | Start condition (only LE and 3I0 E/F detection) | |
FDPSPDIS Group settings (basic)
| FDPSPDIS Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| INBlockPP | 10 – 100 | %IPh | 1 | 40 | 3I0 limit for blocking phase-to-phase measuring loops |
| INReleasePE | 10 – 100 | %IPh | 1 | 20 | 3I0 limit for releasing phase-to-earth measuring loops |
| RLdFw | 1.00 – 3000.00 | Ohm/p | 0.01 | 80.00 | Forward resistive reach within the load impedance area |
| RLdRv | 1.00 – 3000.00 | Ohm/p | 0.01 | 80.00 | Reverse resistive reach within the load impedance area |
| ArgLd | 5 – 70 | Deg | 1 | 30 | Load angle determining the load impedance area |
| X1 | 0.50 – 3000.00 | Ohm/p | 0.01 | 40.00 | Positive sequence reactance reach |
| X0 | 0.50 – 9000.00 | Ohm/p | 0.01 | 120.00 | Zero sequence reactance reach |
| RFFwPP | 0.50 – 3000.00 | Ohm/l | 0.01 | 30.00 | Fault resistance reach, Ph-Ph, forward |
| RFRvPP | 0.50 – 3000.00 | Ohm/l | 0.01 | 30.00 | Fault resistance reach, Ph-Ph, reverse |
| RFFwPE | 1.00 – 9000.00 | Ohm/l | 0.01 | 100.00 | Fault resistance reach, Ph-E, forward |
| RFRvPE | 1.00 – 9000.00 | Ohm/l | 0.01 | 100.00 | Fault resistance reach, Ph-E, reverse |
| IMinOpPP | 5 – 500 | %IB | 1 | 10 | Minimum operate delta current for Phase-Phase loops |
| IMinOpPE | 5 – 500 | %IB | 1 | 5 | Minimum operate phase current for Phase-Earth loops |
FDPSPDIS Group settings (advanced)
| FDPSPDIS Group settings (advanced) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| OperationZ< | Off On |
– | – | On | Operation of impedance based measurement |
| OperationI> | Off On |
– | – | Off | Operation of current based measurement |
| IPh> | 10 – 2500 | %IB | 1 | 120 | Start value for phase over-current element |
| IN> | 10 – 2500 | %IB | 1 | 20 | Start value for trip from 3I0 over- current element |
| TimerPP | Off On |
– | – | Off | Operation mode Off / On of Zone timer, Ph-Ph |
| tPP | 0.000 – 60.000 | s | 0.001 | 3.000 | Time delay to trip, Ph-Ph |
| TimerPE | Off On |
– | – | Off | Operation mode Off / On of Zone timer, Ph-E |
| tPE | 0.000 – 60.000 | s | 0.001 | 3.000 | Time delay to trip, Ph-E |
FDPSPDIS Non group settings (basic)
| FDPSPDIS 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 |
highlights
Characteristics for non-directional, forward and reverse operation of Phase selection with load encroachment, quadrilateral characteristic FDPSPDIS
Characteristic of FDPSPDIS for phase-to-earth fault (setting parameters in italic), ohm/loop domain (directional lines are drawn as “line-dot-dot-line”)
The operation characteristics for FDPSPDIS at phase-to-phase fault (setting parameters in italic, directional lines drawn as “line-dot-dot-line”), ohm/phase domain
The characteristic of FDPSPDIS for three-phase fault (setting parameters in italic)
Characteristic of load encroachment function
Difference in operating characteristic depending on operation mode when load encroachment is activated
Operating characteristic in forward direction when load encroachment is activated
Operating characteristic for FDPSPDIS in forward direction for three-phase fault, ohm/phase domain
Rotation of load characteristic for a fault between two phases
General phase-selection logic diagram
Phase-to-phase and phase-to-earth operating conditions (residual current criteria)
Composition on non-directional phase selection signals
Composition of phase selection signals for reverse direction
Composition of phase selection signals for forward direction
TRIP and START signal logic
