The Self-Healing Module of Elipse Power uses availability signaling to identify which devices can be operated due to a contingency, that is, devices that can receive commands from the Self-Healing Module. Unavailable devices are not considered as a possibility of maneuvering to compose a Self-Healing Module solution.

The definition of Measurements that must be considered in the expression to provide a device to the Self-Healing Module is configured on the CSV load files (Remote and Substation Models). The result of that availability expression is a logical AND of all conditions configured in the CSV file, and the device is only available when all conditions are in the informed status, or in a normal operation status. Examples of Measurements that can turn a device unavailable are::

•Communication failure

•Some field condition in an abnormal status

•Some field condition normalized, but it needs acknowledgment from an operator

•A device was impacted by a Self-Healing Module maneuver and it is unavailable until an operator acknowledges its unavailability

•A device received an opening or closing command and is unavailable until an operator executes an acknowledgment

•A device was opened or closed by a field team and it is unavailable until an operator acknowledges its unavailability

•A downstream device is unavailable

•An operator blocked a device for the Self-Healing Module

The graphical representation of unavailability on the operation diagram is shown on the next figure.

Device unavailable

Unavailability is represented by a dotted yellow rectangle around a device. The letter J, on the upper left corner, indicates that a device also turns all downstream devices unavailable, even open devices tied to other Feeders. If a device is unavailable due to any downstream device, the letter M is displayed on the upper left corner.