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Aftermarket & Installed Base
Supporting long-term performance and operational continuity
SERGI supports operators throughout the operational life of installed transformer protection systems, ensuring that protection performance remains aligned with evolving operating conditions, asset configurations and regulatory expectations.
This contact path is dedicated to post-installation topics, installed base follow-up and long-term operational support.
- operating transformers already equipped with SERGI protection solutions,
- requesting technical follow-up or operational clarification,
- planning modifications, extensions or upgrades of an existing installation,
- preparing protection performance after changes in transformer configuration or operating regime,
- preparing audits, inspections or insurer reviews related to existing installations.
This channel ensures continuity between original engineering intent and real-world operation.
- aging assets,
- network reconfiguration,
- load profile changes,
- regulatory updates following real events.
SERGI’s aftermarket support is designed to:
- preserve engineering coherence over time,
- ensure protection remains technically defensible,
- avoid silent degradation or misalignment with actual risk exposure.
- review of installed protection architecture,
- clarification of operating limits and residual risk,
- assessment of compatibility with transformer modifications,
- support during audits or insurer reviews,
- recommendations for upgrades or adjustments when justified,
- coordination of accessories, spare parts or replacements.
Aftermarket & Support Inquiry Form
To ensure an efficient technical and operational follow-up:
