Pre-Parallel Inspection (PPI)
Location: CA
Year: 2025
Project Overview
Generator Pre-Parallel Inspection (PPI) protection testing with PG&E, relay settings review, developed detailed test plans, breaker and LOR operations, and performed on-site testing using an Omicron CMC 356 test set for two SEL-700G relays. Our efforts ensured full compliance with PG&E Rule 21 requirements.
- SEL-700G Relay
Protection Elements Tested:
- Metering Check
- Voltage controlled phase time-overcurrent element (51CT)
- Phase Under/Overvoltage Elements
- Over/Under Frequency Element
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