Load Relay Model: LDS4
AutoCorrection Properties
To be documented.
Model Equations and/or Block Diagrams
Underfrequency Load Shedding Model with Transfer Trip LDS4 and Inhibitor
Model supported by PowerWorld
Parameters:
ObjectFieldSummary
Field Name Description
| Transfer Trip Object | Transfer Trip Object |
| SC | Shed Shunts |
| f1 to f5 | Frequency Load Shedding Point |
| t1 to t5 | Pickup Time |
| tb1 to tb5 | Breaker Time |
| frac1 to frac5 | Fraction of Load to Shed |
| ttb | Breaker Time |
| Vthresh | Voltage Threshold to inhibit relay behavior by Tv time delay |
| Tv | Inhibit relay behavior time delay |