Symptom: grid-class alarms — over/under-voltage, over/under-frequency, no-grid — once in
a storm, or every afternoon like clockwork.
Check first
- Occasional or chronic? A one-off during grid disturbance self-clears by design; a
daily pattern needs measurement.
- Measure at the inverter’s AC terminals across the problem window — the terminal
voltage, not the DB’s, is what the inverter sees.
- Terminations tight? Loose AC terminations mimic a bad grid at every load step.
Pending Kent validation — do not configure in the field. [KNB-VAL-01]
The India grid-code parameter set for both platforms (V/F windows, reconnect, PF) is under
confirmation. Until published here: set the grid code only per the Kent-issued parameter
sheet for the site’s DISCOM, and never improvise protection values.
Escalate when
- The grid is chronically out of band on logged measurements — Kent leads the DISCOM letter;
bring the readings, timestamps and photos.
- Grid alarms persist with a verified-healthy grid and tight terminations.
- Any request lands to “just widen the limits” — that path runs through utility consent and
Kent, or not at all.
Related pages
