| Units: | - |
| Default Value: | 100 |
| Validation Rule: | ≥0 |
| Description: | MVA base for AC line parameters. |
Transmission MVA Base is used to scale the per unit (p.u.) reactance and resistance back to megawatt values. By default, the MVA base is 100, i.e. a flow of 100 MW is equivalent to a 1 p.u. flow. For example, a 250MW, 275KV transmission line may have a resistance in the order of 0.02 p.u. and a reactance in the order of 0.05 p.u. using a 100 MVA base. Internally, a Voltage Base of 1kV is assumed and these p.u. figures are scaled using the MVA base so that modelled flows and losses are in megawatts.