Unscheduled Maintenance (System Interruption) - GE 345 Quick Start Manual

GENERAL MAINTENANCE
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Unscheduled maintenance (system interruption)

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To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-
energized state once per year, for one hour continuously.
• View the event recorder and oscillography for correct operation of inputs, outputs, and
elements.
345 TRANSFORMER PROTECTION SYSTEM – QUICKSTART GUIDE
CHAPTER 5: MAINTENANCE