Overview
The “Tripping with missing or weak infeed according to French specification” also switches off the line end with weak infeed with a short circuit on the line, selects the faulty phases via a relative undervoltage threshold, and trips instantaneously or with a delay.
For more detailed information “Tripping with missing or weak infeed according to French specification” 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 of the Function
| Addr. | Parameter | C | Setting Options | Default Setting |
| General | ||||
| _:2311:1 | General:Mode | off on test |
off | |
| _:2311:2 | General:Vph-g< factor | 0.10 to 1.00 | 0.70 | |
| _:2311:3 | General:Threshold Vph- gnd< | 0.300 V to 100.000 V | 30.000 V | |
| _:2311:4 | General:Time constant Tau | 1 s to 60 s | 5 s | |
| _:2311:5 | General:3I0> threshold | 1 A @ 100 Irated | 0.050 A to 1.000 A | 0.500 A |
| 5 A @ 100 Irated | 0.250 A to 5.000 A | 2.500 A | ||
| 1 A @ 50 Irated | 0.050 A to 0.500 A | 0.500 A | ||
| 5 A @ 50 Irated | 0.250 A to 2.500 A | 2.500 A | ||
| _:2311:6 | General:T 3I0> extension | 0.00 s to 60.00 s | 0.60 s | |
| Undelayed | ||||
| _:15451:1 | Undelayed:Operating mode | off on |
on | |
| _:15451:2 | Undelayed:Receive extension | 0.00 s to 60.00 s | 0.65 s | |
| _:15451:3 | Undelayed:T 3I0> alarm | 0.00 s to 60.00 s | 10.00 s | |
| _:15451:11 | Undelayed:1-pole operate allowed | no yes |
yes | |
| Delayed | ||||
| _:15481:1 | Delayed:Operating mode | off on on receive err. |
on | |
| _:15481:2 | Delayed:Operate delay 1-ph. (TM) | 0.00 s to 60.00 s | 0.40 s | |
| _:15481:3 | Delayed:Op. delay multi- ph. (TT) | 0.00 s to 60.00 s | 1.00 s | |
| _:15481:11 | Delayed:1-pole operate allowed | no yes |
yes | |
| _:15481:5 | Delayed:1-pole operate with 3I0> | no yes |
yes | |
| _:15481:6 | Delayed:3-pole operate allowed | no yes |
yes | |
Logic Diagrams & highlights
Undervoltage and 3I0 Detection Logic
Logic of the Instantaneous Stage
Logic of the Instantaneous Stage
