Overview
In the “Voltage current 3 phase” function group, you can use all the functions for protection and supervision of a protected object or equipment that allows 3-phase current and voltage measurement. The function group also contains the operational measurement for the protected object or equipment.
For more detailed information on “Voltage current 3 phase” function group, refer to SIPROTEC 5 devices, V8.30 & higher manuals.
To see other supported function groups, click here.
Structure of the Voltage-Current 3-Phase Function Group
Structure/Embedding of the Process Monitor Function
Setting Parameters
Write-Protected Settings for Voltage-Current 3-Phase Function Group
| Addr. | Parameters | C | Range of Values | Default Setting |
| Network data | ||||
| _:103 | General:rated apparent power | 0.20 MVA to 5 000.00 MVA | 692.82 MVA | |
Setting parameters for Voltage-Current 3-Phase Function Group
| Addr. | Parameter | C | Setting Options | Default Setting |
| Rated values | ||||
| _:9451:101 | General:Rated current | 1.00 A to 100000.00 A | 1000.00 A | |
| _:9451:102 | General:Rated voltage | 0.20 kV to 1200.00 kV | 400.00 kV | |
| Power-system data | ||||
| _:9451:149 | General:Power-sys. neutral point | grounded suppress. coil grounded isolated |
grounded | |
| Measurements | ||||
| _:9451:158 | General:P, Q sign | not reversed reversed |
not reversed | |
Setting parameters for Process Monitor: Cold-Load Pickup Detection (Optional)
| Addr. | Parameter | C | Setting Options | Default Setting |
| Cold-load PU | ||||
| _:1 | Cold-load PU:Mode | off on test |
off | |
| _:101 | Cold-load PU:Operating mode | I open CB and I open |
I open | |
| _:102 | Cold-load PU:Dropout threshold current | 1 A @ 100 Irated | 0.030 A to 10.000 A | 1.000 A |
| 5 A @ 100 Irated | 0.15 A to 50.00 A | 5.00 A | ||
| 1 A @ 50 Irated | 0.030 A to 10.000 A | 1.000 A | ||
| 5 A @ 50 Irated | 0.15 A to 50.00 A | 5.00 A | ||
| 1 A @ 1.6 Irated | 0.001 A to 1.600 A | 1.000 A | ||
| 5 A @ 1.6 Irated | 0.005 A to 8.000 A | 5.000 A | ||
| _:103 | Cold-load PU:Dropout delay curr.crit. | 1 s to 600 s | 600 s | |
| _:104 | Cold-load PU:Dropout delay CB closed | 1 s to 21600 s | 3600 s | |
| _:105 | Cold-load PU:Min. CB- open time | 0 s to 21600 s | 3600 s | |
Logic Diagrams & highlights
Operational Measured Values of the Voltage-Current 3-Phase Function Group
Creation of the Pickup Indication of the Voltage-Current 3-Phase Function Group
Creation of the Operate Indication of the Voltage-Current 3-Phase Function Group
Logic Diagram of the Overall Function Process Monitor
Logic Diagram of the Current-Flow Criterion Function Block
Logic Diagram of the Circuit-Breaker Condition for the Protected-Object Function Block
Logic Diagram of Closure Detection
Logic Diagram of the Cold-Load Pickup Detection Function Block
