When automation meets the messy grid

As we push more automation into substations and feeders, the grid reminds you it isn't a clean lab. We rolled out a FLISR scheme using SEL relays, an RTAC, GOOSE, and PTP. First big storm, comm latency and stale DER telemetry had two reclosers hunting topology changes. We fixed it with hold-off timers, state voting, QoS on the radio links, and data-age checks before any trip/close.

On the robotics side, ground robots for substation inspections cut crew exposure and kept patrols going in ice storms, but they struggled with RF noise near breakers and metallic clutter. Thermal alarms were noisy too; sun angle fooled them. We tweaked routes, added RF shielding, and mounted reference panels for calibration.

Biggest lesson: automation fails in ways a seasoned crew never would. We now require hardware-in-the-loop tests, ETAP fault playback into RTDS, and a graceful degradation path to local manual control when comms or time sync drift.

Where have you seen the best payoff vs risk with grid automation? How are you validating schemes before cutover, especially on DER-heavy feeders?