| List of Variables | Min. Value | Max. Value | Category |
| Generator Bus | 0.90 | 1.08 | Continuous |
| Load Bus | 0.90 | 1.01 | Continuous |
| Transformer-Tap | 0.91 | 1.00 | Discrete |
| Shunt Reactive Compensator | −0.10 | 0.30 | Discrete |