Glossary of terms and transition types

Available

A source is defined as available when it is within its undervoltage/

overvoltage/underfrequency/overfrequency/unbalance(if applicable)

setpoint ranges for the nominal voltage and frequency setting.

Unavailable

A source is defined as failed when it is outside of its undervoltage/

overvoltage/underfrequency/overfrequency/unbalance (if applicable)

setpoint ranges for the nominal voltage and frequency setting.

Normal source

The normal source is defined as the source that is preferred. The

preferred source setting allows the operator to select source 1.

source 2 or NONE as the preferred source. If NONE is chosen, the

preferred source or the normal source will be the source that is

presently attached to the load. The default is set as being source 1

as the preferred and normal source.