Overview
The “Two step overvoltage protection (OV2PTOV)” function can be used to detect open line ends, normally then combined with a directional reactive over-power function to supervise the system voltage. When triggered, the function will cause an alarm, switch in reactors, or switch out capacitor banks.
For more detailed information on “Two step overvoltage protection (OV2PTOV)” 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 |
| Two step overvoltage protection | OV2PTOV | 3U> | 59 |
Signals & Setting Parameters
OV2PTOV function block
OV2PTOV Input signals
| OV2PTOV Input signals | |||
| Name | Type | Default | Description |
| U3P | GROUP SIGNAL | – | Group signal for three phase voltage input |
| BLOCK | BOOLEAN | 0 | Block of function |
| BLKTR1 | BOOLEAN | 0 | Block of operate signal, step 1 |
| BLKST1 | BOOLEAN | 0 | Block of step 1 |
| BLKTR2 | BOOLEAN | 0 | Block of operate signal, step 2 |
| BLKST2 | BOOLEAN | 0 | Block of step 2 |
OV2PTOV Output signals
| OV2PTOV Output signals | |||
| Name | Type | Description | |
| TRIP | BOOLEAN | Trip | |
| TR1 | BOOLEAN | Common trip signal from step1 | |
| TR1L1 | BOOLEAN | Trip signal from step1 phase L1 | |
| TR1L2 | BOOLEAN | Trip signal from step1 phase L2 | |
| TR1L3 | BOOLEAN | Trip signal from step1 phase L3 | |
| TR2 | BOOLEAN | Common trip signal from step2 | |
| TR2L1 | BOOLEAN | Trip signal from step2 phase L1 | |
| TR2L2 | BOOLEAN | Trip signal from step2 phase L2 | |
| TR2L3 | BOOLEAN | Trip signal from step2 phase L3 | |
| START | BOOLEAN | General start signal | |
| ST1 | BOOLEAN | Common start signal from step1 | |
| ST1L1 | BOOLEAN | Start signal from step1 phase L1 | |
| ST1L2 | BOOLEAN | Start signal from step1 phase L2 | |
| ST1L3 | BOOLEAN | Start signal from step1 phase L3 | |
| ST2 | BOOLEAN | Common start signal from step2 | |
| ST2L1 | BOOLEAN | Start signal from step2 phase L1 | |
| ST2L2 | BOOLEAN | Start signal from step2 phase L2 | |
| ST2L3 | BOOLEAN | Start signal from step2 phase L3 | |
OV2PTOV Group settings (basic)
| OV2PTOV Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| Operation | Off On |
– | – | Off | Operation Off / On |
| OperationStep1 | Off On |
– | – | On | Enable execution of step 1 |
| Characterist1 | Definite time Inverse curve A Inverse curve B Inverse curve C Prog. inv. curve |
– | – | Definite time | Selection of time delay curve type for step 1 |
| OpMode1 | 1 out of 3 2 out of 3 3 out of 3 |
– | – | 1 out of 3 | Number of phases required for op (1 of 3, 2 of 3, 3 of 3) from step 1 |
| U1> | 1.0 – 200.0 | %UB | 0.1 | 120.0 | Voltage setting/start val (DT & IDMT) in % of UBase, step 1 |
| t1 | 0.00 – 6000.00 | s | 0.01 | 5.00 | Definitive time delay of step 1 |
| t1Min | 0.000 – 60.000 | s | 0.001 | 5.000 | Minimum operate time for inverse curves for step 1 |
| k1 | 0.05 – 1.10 | – | 0.01 | 0.05 | Time multiplier for the inverse time delay for step 1 |
| HystAbs1 | 0.0 – 50.0 | %UB | 0.1 | 0.5 | Absolute hysteresis in % of UBase, step 1 |
| OperationStep2 | Off On |
– | – | On | Enable execution of step 2 |
| Characterist2 | Definite time Inverse curve A Inverse curve B Inverse curve C Prog. inv. curve |
– | – | Definite time | Selection of time delay curve type for step 2 |
| OpMode2 | 1 out of 3 2 out of 3 3 out of 3 |
– | – | 1 out of 3 | Number of phases required for op (1 of 3, 2 of 3, 3 of 3) from step 2 |
| U2> | 1.0 – 200.0 | %UB | 0.1 | 150.0 | Voltage setting/start val (DT & IDMT) in % of UBase, step 2 |
| t2 | 0.000 – 60.000 | s | 0.001 | 5.000 | Definitive time delay of step 2 |
| t2Min | 0.000 – 60.000 | s | 0.001 | 5.000 | Minimum operate time for inverse curves for step 2 |
| k2 | 0.05 – 1.10 | – | 0.01 | 0.05 | Time multiplier for the inverse time delay for step 2 |
| HystAbs2 | 0.0 – 50.0 | %UB | 0.1 | 0.5 | Absolute hysteresis in % of UBase, step 2 |
OV2PTOV Group settings (advanced)
| OV2PTOV Group settings (advanced) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| tReset1 | 0.000 – 60.000 | s | 0.001 | 0.025 | Reset time delay used in IEC Definite Time curve step 1 |
| ResetTypeCrv1 | Instantaneous Frozen timer Linearly decreased |
– | – | Instantaneous | Selection of used IDMT reset curve type for step 1 |
| tIReset1 | 0.000 – 60.000 | s | 0.001 | 0.025 | Time delay in IDMT reset (s), step 1 |
| ACrv1 | 0.005 – 200.000 | – | 0.001 | 1.000 | Parameter A for customer programmable curve for step 1 |
| BCrv1 | 0.50 – 100.00 | – | 0.01 | 1.00 | Parameter B for customer programmable curve for step 1 |
| CCrv1 | 0.0 – 1.0 | – | 0.1 | 0.0 | Parameter C for customer programmable curve for step 1 |
| DCrv1 | 0.000 – 60.000 | – | 0.001 | 0.000 | Parameter D for customer programmable curve for step 1 |
| PCrv1 | 0.000 – 3.000 | – | 0.001 | 1.000 | Parameter P for customer programmable curve for step 1 |
| CrvSat1 | 0 – 100 | % | 1 | 0 | Tuning param for prog. over voltage IDMT curve, step 1 |
| tReset2 | 0.000 – 60.000 | s | 0.001 | 0.025 | Reset time delay used in IEC Definite Time curve step 2 |
| ResetTypeCrv2 | Instantaneous Frozen timer Linearly decreased |
– | – | Instantaneous | Selection of used IDMT reset curve type for step 2 |
| tIReset2 | 0.000 – 60.000 | s | 0.001 | 0.025 | Time delay in IDMT reset (s), step 2 |
| ACrv2 | 0.005 – 200.000 | – | 0.001 | 1.000 | Parameter A for customer programmable curve for step 2 |
| BCrv2 | 0.50 – 100.00 | – | 0.01 | 1.00 | Parameter B for customer programmable curve for step 2 |
| CCrv2 | 0.0 – 1.0 | – | 0.1 | 0.0 | Parameter C for customer programmable curve for step 2 |
| DCrv2 | 0.000 – 60.000 | – | 0.001 | 0.000 | Parameter D for customer programmable curve for step 2 |
| PCrv2 | 0.000 – 3.000 | – | 0.001 | 1.000 | Parameter P for customer programmable curve for step 2 |
| CrvSat2 | 0 – 100 | % | 1 | 0 | Tuning param for prog. over voltage IDMT curve, step 2 |
OV2PTOV Non group settings (basic)
| OV2PTOV Non group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| ConnType | PhN DFT PhPh DFT PhN RMS PhPh RMS | – | – | PhN DFT | Group selector for connection type |
| GlobalBaseSel | 1 – 12 | – | 1 | 1 | Selection of one of the Global Base Value groups |
OV2PTOV Monitored data
| OV2PTOV Monitored data | ||||
| Name | Type | Values (Range) | Unit | Description |
| UL1 | REAL | – | kV | Voltage in phase L1 |
| UL2 | REAL | – | kV | Voltage in phase L2 |
| UL3 | REAL | – | kV | Voltage in phase L3 |
Logics & highlights
Voltage used for the inverse time characteristic integration
Voltage profile not causing a reset of the START signal for step 1, and inverse time delay at different reset types
Voltage profile causing a reset of the START signal for step 1, and inverse time delay at different reset types
Logic diagram for step 1, definite time delay, DT operation
Example for step 1, Definite Time Delay stage 1 reset
Example for Definite Time Delay stage 1 operation
Schematic design of Two step overvoltage protection OV2PTOV
