Overview
For more detailed information on “Directional underpower protection (GUPPDUP)” 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 |
| Directional underpower protection | GUPPDUP | 37 |
Signals & Setting Parameters
GUPPDUP function block
GUPPDUP Input signals
| GUPPDUP Input signals | |||
| Name | Type | Default | Description |
| I3P | GROUP SIGNAL | – | Current group connection |
| U3P | GROUP SIGNAL | – | Voltage group connection |
| BLOCK | BOOLEAN | 0 | Block of function |
| BLOCK1 | BOOLEAN | 0 | Block of stage 1 |
| BLOCK2 | BOOLEAN | 0 | Block of stage 2 |
GUPPDUP Output signals
| GUPPDUP Output signals | |||
| Name | Type | Description | |
| TRIP | BOOLEAN | Common trip signal | |
| TRIP1 | BOOLEAN | Trip of stage 1 | |
| TRIP2 | BOOLEAN | Trip of stage 2 | |
| START | BOOLEAN | Common start | |
| START1 | BOOLEAN | Start of stage 1 | |
| START2 | BOOLEAN | Start of stage 2 | |
| P | REAL | Active Power in MW | |
| PPERCENT | REAL | Active power in % of SBase | |
| Q | REAL | Reactive power in MVAr | |
| QPERCENT | REAL | Reactive power in % of SBase | |
GUPPDUP Group settings (basic)
| GUPPDUP Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| Operation | Off On |
– | – | Off | Operation Off / On |
| OpMode1 | Off UnderPower |
– | – | UnderPower | Operation mode for stage 1 Off / On |
| Power1 | 0.0 – 500.0 | %SB | 0.1 | 1.0 | Stage 1 underpower setting in Angle1 direction in % of SBase |
| Angle1 | -180.0 – 180.0 | Deg | 0.1 | 0.0 | Characteristic angle for max power senistivity stage 1 |
| TripDelay1 | 0.01 – 6000.00 | s | 0.01 | 1.00 | Trip delay for stage 1 |
| DropDelay1 | 0.01 – 6000.00 | s | 0.01 | 0.06 | Drop-off delay for stage 1 |
| OpMode2 | Off UnderPower |
– | – | UnderPower | Operation mode for stage 2 Off / On |
| Power2 | 0.0 – 500.0 | %SB | 0.1 | 1.0 | Power setting for stage 2 in % of SBase |
| Angle2 | -180.0 – 180.0 | Deg | 0.1 | 0.0 | Characteristic angle for max power senistivity stage 2 |
| TripDelay2 | 0.01 – 6000.00 | s | 0.01 | 1.00 | Trip delay for stage 2 |
| DropDelay2 | 0.01 – 6000.00 | s | 0.01 | 0.06 | Drop-off delay for stage 2 |
GUPPDUP Group settings (advanced)
| GUPPDUP Group settings (advanced) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| k | 0.000 – 0.999 | – | 0.001 | 0.000 | Low pass filter coefficient for power measurement, P and Q |
| Hysteresis1 | 0.2 – 5.0 | %SB | 0.1 | 0.5 | Absolute hysteresis of stage 1 in % SBase |
| Hysteresis2 | 0.2 – 5.0 | %SB | 0.1 | 0.5 | Absolute hysteresis of stage 2 in % SBase |
| IAmpComp5 | -10.000 – 10.000 | % | 0.001 | 0.000 | Amplitude correction compensates current error at 5% of Ir |
| IAmpComp30 | -10.000 – 10.000 | % | 0.001 | 0.000 | Amplitude correction compensates current error at 30% of Ir |
| IAmpComp100 | -10.000 – 10.000 | % | 0.001 | 0.000 | Amplitude correction compensates current error at 100% of Ir |
| UAmpComp5 | -10.000 – 10.000 | % | 0.001 | 0.000 | Amplitude correction compensates voltage error at 5% of Ur |
| UAmpComp30 | -10.000 – 10.000 | % | 0.001 | 0.000 | Amplitude correction compensates voltage error at 30% of Ur |
| UAmpComp100 | -10.000 – 10.000 | % | 0.001 | 0.000 | Amplitude correction compensates voltage error at 100% of Ur |
| IAngComp5 | -10.000 – 10.000 | Deg | 0.001 | 0.000 | Corr of error betw current and voltage angles at 5% of Ir |
| IAngComp30 | -10.000 – 10.000 | Deg | 0.001 | 0.000 | Corr of error betw current and voltage angles at 30% of Ir |
| IAngComp100 | -10.000 – 10.000 | Deg | 0.001 | 0.000 | Corr of error betw current and voltage angles at 100% of Ir |
GUPPDUP Non group settings (basic)
| GUPPDUP 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 |
| Mode | L1, L2, L3 Arone Pos Seq L1L2 L2L3 L3L1 L1 L2 L3 |
– | – | Pos Seq | Selection of measured current and voltage |
GUPPDUP Monitored data
| GUPPDUP Monitored data | ||||
| Name | Type | Values (Range) | Unit | Description |
| P | REAL | – | MW | Active Power in MW |
| PPERCENT | REAL | – | % | Active power in % of SBase |
| Q | REAL | – | MVAr | Reactive power in MVAr |
| QPERCENT | REAL | – | % | Reactive power in % of SBase |
Logics & highlights
Protection with underpower IED and overpower IED
Simplified logic diagram of the power protection function
Calibration curves
