The procedure for replacing a failed Insulated Gate Bipolar Transistor (IGBT) in a Wave Energy Converter (WEC) power converter requires careful steps to ensure safety and proper operation. First, de-energize and isolate the power converter. Follow Lockout/Tagout (LOTO) procedures to prevent accidental re-energization. Verify the absence of voltage using a calibrated voltmeter. Second, allow sufficient time for capacitors within the converter to discharge completely. Use appropriate discharge tools if necessary. Third, document the existing IGBT's part number and location within ....
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