Overview
The “Instantaneous high current tripping” function makes instantaneous tripping when switching onto an existing fault, for example, if a grounding switch is closed, and instantaneous disconnection of high currents above the highest overcurrent-protection stage.
For more detailed information on “Instantaneous high current tripping” function, refer to SIPROTEC 5 devices, V8.30 & higher manuals.
To see other supported functions, click here.
Structure/Embedding of the Function
Setting Parameters
Setting parameters for Instantaneous high current tripping Function
| Addr. | Parameter | C | Setting Options | Default Setting |
| Standard 1 | ||||
| _:3901:1 | Standard 1:Mode | off on test |
on | |
| _:3901:101 | Standard 1:Activation | on CB closure only with binary signal always active |
on CB closure | |
| _:3901:3 | Standard 1:Threshold | 1 A @ 100 Irated | 0.030 A to 35.000 A | 10.000 A |
| 5 A @ 100 Irated | 0.15 A to 175.00 A | 50.00 A | ||
| 1 A @ 50 Irated | 0.030 A to 35.000 A | 10.000 A | ||
| 5 A @ 50 Irated | 0.15 A to 175.00 A | 50.00 A | ||
| 1 A @ 1.6 Irated | 0.001 A to 1.600 A | 10.000 A | ||
| 5 A @ 1.6 Irated | 0.005 A to 8.000 A | 50.000 A | ||
| _:3901:4 | Standard 1:Dropout ratio | 0.50 to 0.90 | 0.90 | |
Logic Diagrams & highlights
Logic Diagram of Instantaneous high current tripping with Standard Release Method
