Describe the current behavior

When importing a network containing StaticVarCompensator with StandbyAutomaton extension, even if the extension is in standBy=false (because we don't want to use it in a simulator) the import fails if the low voltage threshold is not strictly less than the high voltage threshold (for instance if both are set to 0 because not really set for the use case).

Describe the expected behavior

When importing a network containing StaticVarCompensator with StandbyAutomaton extension with:

• a standBy mode set to false
• the low voltage threshold not strictly less than the high voltage threshold

Then the import does not fail and I can see a warning message instead about the inconsistence of the voltage config.

Then, if I activate the standBy mode and the voltage config is not right (low voltage threshold >= high voltage threshold) then it must throw an error (Inconsistent low and high voltage thresholds).

Describe the motivation

Add more flexibility when reading networks containing StandbyAutomaton extensions with a standBy mode deactivated.

Extra Information

Add flexibility in the check on the voltage config:

• in the StandbyAutomatonImpl::checkVoltageConfig method add the check on the standBy value to throw exception only in the case standBy=true, and log a warning message if false.

Add control to check voltage config correctness when activating a StandbyAutomaton:

• in the StandbyAutomatonImpl::setStandby method, before updating thestandBy attribute to the new value, call the StandbyAutomatonImpl::checkVoltageConfig method to check that the voltage values are correct with the new standBy value.