Overview
The “Phase preference logic (PPL2PHIZ)” function is used with the high speed distance protection, quad and mho characteristic (ZMFPDIS). It is intended to be used in isolated or high impedance earthed networks where there is a requirement to operate on only one of the faulty lines during a cross-country fault. It can be used without preference to restrain operation for single earth faults with a delayed zero-sequence current release.
For more detailed information on “Phase preference logic (PPL2PHIZ)” 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 preference logic | PPL2PHIZ | – | – |
Signals & Setting Parameters
PPL2PHIZ function block
PPL2PHIZ Input signals
| PPL2PHIZ 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 |
| RELL1N | BOOLEAN | 0 | Release condition for the L1 to earth loop |
| RELL2N | BOOLEAN | 0 | Release condition for the L2 to earth loop |
| RELL3N | BOOLEAN | 0 | Release condition for the L3 to earth loop |
PPL2PHIZ Output signals
| PPL2PHIZ Output signals | |||
| Name | Type | Description | |
| START | BOOLEAN | Indicates start for earth fault(s), regardless of direction | |
| ZREL | INTEGER | Integer coded output release signal | |
PPL2PHIZ Group settings (basic)
| PPL2PHIZ Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| OperMode | No Filter NoPref 1231c 1321c 123a 132a 213a 231a 312a 321a |
– | – | No Filter | Operating mode (c=cyclic,a=acyclic) |
| UPN< | 0 – 100 | %UB/sq 3 | 1 | 70 | Operate value of phase undervoltage in % of UBase/sqrt(3) |
| UPP< | 0 – 100 | %UB | 1 | 50 | Operate value of line to line undervoltage (% of UBase) |
| 3U0> | 5 – 300 | %UB/sq 3 | 1 | 20 | Operate value of residual voltage in % of UBase/sqrt(3) |
| IN> | 10 – 200 | %IB | 1 | 20 | Operate value of residual current (% of IBase) |
| tUN | 0.000 – 60.000 | s | 0.001 | 0.100 | Pickup-delay for residual voltage |
| tOffUN | 0.000 – 60.000 | s | 0.001 | 0.100 | Dropoff-delay for residual voltage |
| tIN | 0.000 – 60.000 | s | 0.001 | 0.150 | Pickup-delay for residual current |
PPL2PHIZ Non group settings (basic)
| PPL2PHIZ 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 |
Logics & highlights
Phase preference logic overview
Residual current criteria
Phase selection
Start
No Filter mode
No Preference mode
Phase preference 1
Phase preference 2
Output
