Overview
The “Rate of voltage change protection” function can be used to prevent the system from not secure states caused by unbalance between the generated and consumed active power, detect a network island state, advanced load-shedding applications and detect a rather fast voltage change related to a fault in the power system.
For more detailed information on “Rate of voltage change protection” 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 Rate of voltage change protection
| Addr. | Parameter | C | Setting Options | Default Setting |
| General | ||||
| _:13171:137 | General:Measuring window | 2 periods to 50 periods | 5 periods | |
| dV/dt falling1 | ||||
| _:22831:1 | dV/dt falling1:Mode | off on test |
off | |
| _:22831:2 | dV/dt falling1:Operate & flt.rec. blocked | no yes |
no | |
| _:22831:10 | dV/dt falling1:Blk. by meas.-volt. failure | no yes |
yes | |
| _:22831:102 | dV/dt falling1:Pickup mode | 1 out of 3 3 out of 3 |
1 out of 3 | |
| _:22831:3 | dV/dt falling1:dV/second | 0.500 V to 200.000 V | 20.000 V | |
| _:22831:6 | dV/dt falling1:Operate delay | 0.00 s to 60.00 s | 3.00 s | |
| _:22831:101 | dV/dt falling1:Dropout delay | 0.00 s to 60.00 s | 0.00 s | |
| dV/dt rising 1 | ||||
| _:22801:1 | dV/dt rising 1:Mode | off on test |
off | |
| _:22801:2 | dV/dt rising 1:Operate & flt.rec. blocked | no yes |
no | |
| _:22801:10 | dV/dt rising 1:Blk. by meas.-volt. failure | no yes |
yes | |
| _:22801:102 | dV/dt rising 1:Pickup mode | 1 out of 3 3 out of 3 |
1 out of 3 | |
| _:22801:3 | dV/dt rising 1:dV/second | 0.500 V to 200.000 V | 20.000 V | |
| _:22801:6 | dV/dt rising 1:Operate delay | 0.00 s to 60.00 s | 3.00 s | |
| _:22801:101 | dV/dt rising 1:Dropout delay | 0.00 s to 60.00 s | 0.00 s | |
Logic Diagrams & highlights
Logic Diagram of the General Functionality
Logic Diagram of the dV/dt Falling Stage
